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base: sneak/mfer:issue-102-go-latest
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sneak/mfer:main sneak/mfer:issue-102-go-latest sneak/mfer:next sneak/mfer:issue-116-gomodguard
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compare: sneak/mfer:e2039f3ddacae9de92f641f3ac4cbb1f22b6b9f6
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sneak/mfer:issue-102-go-latest sneak/mfer:next sneak/mfer:issue-116-gomodguard sneak/mfer:main
1 Commits
issue-102-go-latest .. e2039f3dda
Author SHA1 Message Date
sneak e2039f3dda fetch: client timeout, retry with backoff, url.JoinPath (closes #63)
check / check (push) Failing after 1s
Details 
fetch now makes every request through an http.Client with a time
limit, ten minutes by default and set with --timeout, which must be
greater than zero. A connection error, a timeout, or a 5xx or 429
response is retried, up to five tries in all, after a random wait
whose limit doubles from one second, or after the wait the server's
Retry-After asks for, up to one minute. Each try of a file starts a
new temp file, so a retry never keeps a partial file; the size and
hash checks are unchanged. Manifest and file URLs are built with
URL.JoinPath, so a base URL with or without a trailing slash or with
a query string, and names that need escaping, all work.

Model: opus-5-5
 2026-10-04 13:22:35 +00:00
66 changed files with 1732 additions and 3767 deletions
Expand all files Collapse all files
.dockerignore
+4 -21
View File
@@ -17,17 +17,7 @@
# stage that compiles runs `git describe --tags --always` on .git, which
# does not need .git/config; that file can hold a credential, such as a
# password in a remote URL or the token the CI checkout step stores there.
# Each submodule keeps a config with the same exposure in its git directory
# under .git/modules/, nested again for a submodule's own submodules, or in
# its own .git directory when it keeps one.
# KNOWN GAP: a submodule whose name has a `config` segment (`config`,
# `deploy/config`, `config/lib`) loses its whole git directory, because
# `**/.git/modules/**/config` also matches that segment's directory
# under .git/modules/. Go's version stamping then fails the build;
# nothing leaks. Name such a submodule without that segment:
# `git submodule add --name`.
**/.git/config
**/.git/modules/**/config
.git/config
# Agent scratch: one full checkout of the repo per in-flight agent.
# Anchored because it occurs once where agents run at the repo root.
@@ -51,9 +41,7 @@
**/[iI][dD]_[rR][sS][aA]
**/[iI][dD]_[dD][sS][aA]
**/[iI][dD]_[eE][cC][dD][sS][aA]
**/[iI][dD]_[eE][cC][dD][sS][aA]_[sS][kK]
**/[iI][dD]_[eE][dD]25519
**/[iI][dD]_[eE][dD]25519_[sS][kK]
# Dependencies: restored inside the image, never copied in.
**/node_modules
@@ -71,11 +59,6 @@
**/.vscode
**/*.sublime-*
# This repo's own host-built binary (make build).
/bin/mfer
# The tools script/bootstrap installs for script/gofumpt and
# script/generate.
/bin/gofumpt
/bin/protoc
/bin/protoc-gen-go
# This repo's own host-built archives (Makefile).
*.tmp
*.dockerimage
.editorconfig
-3
View File
@@ -10,6 +10,3 @@ insert_final_newline = true
[Makefile]
indent_style = tab
[*.go]
indent_style = tab
.gitea/workflows/check.yml
+1 -1
View File
@@ -4,6 +4,6 @@ jobs:
check:
runs-on: ubuntu-latest
steps:
# actions/checkout v4.2.2, 2026-02-22
# actions/checkout v4.2.2, 2026-03-16
- uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
- run: script/cibuild
.gitignore
+21 -51
View File
@@ -1,63 +1,33 @@
# OS
/bin/
/tmp
/node_modules/
*.tmp
*.dockerimage
/vendor
vendor.tzst
modcache.tzst
# Generated manifest files
/index.mf
# Secrets
.env
.env.*
*.key
*.pem
# OS files
.DS_Store
Thumbs.db
# Editors
# Editor files
*.swp
*.swo
*~
*.bak
.idea/
.vscode/
*.sublime-*
# Agent scratch (worktrees of this repo, created and destroyed by
# in-flight tooling). Unanchored: .gitignore patterns already match at
# every depth, so no prefix is wanted here. This is not a .dockerignore
# entry and must not be given a `**/` prefix on the way into one.
.claude/
# Node
node_modules/
# Secrets. Unanchored like every entry above, so each matches at every
# depth. Matching is case-sensitive on Linux, so names use character
# ranges rather than a lowercase form that misses `Server.Key`.
# Environment files. `*.env` covers bare `.env` and the `prod.env`
# convention. Only the templates `example.env` and `sample.env` are
# re-included below. A repository that commits any other template adds
# its own negation after these lines, for example `!.env.example`.
*.[eE][nN][vV]
.[eE][nN][vV].*
.[eE][nN][vV][rR][cC]
!example.env
!sample.env
# Private keys and the bundles carrying them.
*.[pP][eE][mM]
*.[kK][eE][yY]
*.[pP]12
*.[pP][fF][xX]
[iI][dD]_[rR][sS][aA]
[iI][dD]_[dD][sS][aA]
[iI][dD]_[eE][cC][dD][sS][aA]
[iI][dD]_[eE][cC][dD][sS][aA]_[sS][kK]
[iI][dD]_[eE][dD]25519
[iI][dD]_[eE][dD]25519_[sS][kK]
# Go build and test artifacts.
# Go build artifacts
*.log
*.out
*.test
# This repo's own binary (make build), and the tools script/bootstrap
# installs into bin/.
/bin/mfer
/bin/gofumpt
/bin/protoc/
/bin/protoc-gen-go
# A manifest generated at the repo root, and local scratch.
/index.mf
/tmp
.golangci.yml
+2 -67
View File
@@ -10,21 +10,14 @@ run:
linters:
default: all
enable:
# Successor to the deprecated gomodguard. Named explicitly, rather than
# left to `default: all`, because it carries the module policy below.
- gomodguard_v2
disable:
# Genuinely incompatible with project patterns
- exhaustruct # Requires all struct fields
- exhaustruct_v5 # Requires all struct fields (successor to exhaustruct)
- depguard # Dependency allow/block lists
- godot # Requires comments to end with periods
- wsl # Deprecated, replaced by wsl_v5
- wrapcheck # Too verbose for internal packages
- varnamelen # Short names like db, id are idiomatic Go
# Deprecated: the warning is attached to the old name, so it is
# silenced by disabling that name, not by enabling the successor.
- wsl # Deprecated, replaced by wsl_v5
- gomodguard # Deprecated, replaced by gomodguard_v2
settings:
lll:
line-length: 88
@@ -35,64 +28,6 @@ linters:
max-complexity: 15
dupl:
threshold: 100
depguard:
# Test-support code must not be compiled into the shipped binary. A
# test-support package exists to hand a test privileges the program
# itself must never have, so a file that is not a test must not import
# one. Test files, and the files inside a package whose directory name
# ends in `test`, are where that code belongs, and are exempt.
#
# The deny list below is the one part of this file a repository is
# expected to extend, and the only part it may. depguard matches an
# import path against a list of prefixes, so it cannot be told "any path
# whose last segment ends in test"; a repository's own test-support
# packages have to be named here one at a time, by full import path,
# under a module path that differs from repository to repository. Add
# them; change nothing else.
rules:
test-support:
list-mode: lax
files:
- "$all"
- "!$test"
- "!**/*test/**"
deny:
- pkg: net/http/httptest
desc: >-
Test-support code belongs in test files and in packages whose
directory name ends in test, not in the shipped binary.
# Only decisions already recorded in the Go package defaults are
# listed here. Every entry matches the module path exactly.
gomodguard_v2:
blocked:
- module: github.com/rs/zerolog
recommendations:
- log/slog
reason: "Structured logging is stdlib log/slog."
# One entry per pre-fork module path, because the later releases
# are separate paths. A prefix match would be shorter but would
# also reach github.com/go-redis/redismock, the test double for
# the successor these entries recommend.
- module: github.com/go-redis/redis
recommendations:
- github.com/redis/go-redis/v9
reason: "Pre-fork module; use the maintained go-redis v9."
- module: github.com/go-redis/redis/v7
recommendations:
- github.com/redis/go-redis/v9
reason: "Pre-fork module; use the maintained go-redis v9."
- module: github.com/go-redis/redis/v8
recommendations:
- github.com/redis/go-redis/v9
reason: "Pre-fork module; use the maintained go-redis v9."
- module: github.com/sergi/go-diff
recommendations:
- github.com/aymanbagabas/go-udiff
reason: "No unified diff output; use go-udiff."
- module: github.com/hexops/gotextdiff
recommendations:
- github.com/aymanbagabas/go-udiff
reason: "Unmaintained fork; use go-udiff."
issues:
max-issues-per-linter: 0
.nvmrc
-1
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@@ -1 +0,0 @@
22.17.0
.prettierignore
+13 -1
View File
@@ -1,2 +1,14 @@
# REPO_POLICIES.md is a verbatim copy of an authoritative upstream
# document (sneak/prompts). Local tooling must never rewrite it: any
# reformatting is silent drift from the source of truth.
REPO_POLICIES.md
# User-owned configuration, copied verbatim from upstream. Not matched by
# the current prettier file set, but listed so widening that set can never
# start rewriting it.
.golangci.yml
# Dependencies and build output
node_modules/
yarn.lock
vendor/
bin/
AGENTS.md
+1 -1
View File
@@ -26,7 +26,7 @@ source for coding standards, formatting, linting, and workflow rules.
- This is a Go library + CLI tool for generating `.mf` manifest files.
- The proto definition is in `mfer/mf.proto`; generated `.pb.go` files are
committed (required for `go get` compatibility).
- The format specification is in `docs/FORMAT.md`.
- The format specification is in `FORMAT.md`.
- Open work, open design questions included, is tracked only in the repo's
issues: https://git.eeqj.de/sneak/mfer/issues. There is no `TODO.md` and no
TODO list in `README.md`; do not add either. For this repo this overrides the
Dockerfile
+49 -50
View File
@@ -1,74 +1,73 @@
# Lint phase. The linter is invoked directly rather than through `make
# lint` or `script/lint`, which are themselves a docker build and would
# recurse into a daemon that does not exist in a build step.
# golangci/golangci-lint:v2.14.0, 2026-09-24
FROM golangci/golangci-lint@sha256:ad862ba6b3798cbe0fd9fd7408d498fd74fbd2623a92406b2fd3898faf0bf98f AS lint
# Lint stage — fast feedback on formatting and lint issues
# golangci/golangci-lint:v2.12.2 (Debian-based), 2026-08-07
FROM golangci/golangci-lint:v2.12.2@sha256:5cceeef04e53efe1470638d4b4b4f5ceefd574955ab3941b2d9a68a8c9ad5240 AS lint
WORKDIR /src
COPY go.mod go.sum ./
RUN go mod download
COPY . .
# Go half of fmt-check only: this image has no node, so no prettier. The
# markdown half runs in the mdfmt stage below.
RUN make fmt-check-go
# The linter directly, not `make lint`: script/lint builds this stage, and
# there is no docker inside this build.
RUN golangci-lint run --config .golangci.yml ./...
# Test phase. -race needs cgo and so a C compiler, which the Debian Go
# image ships and the alpine one does not.
# golang:1.27.1, 2026-10-06
FROM golang@sha256:1e93e00a31255c07e9a34c4207f3006e1501730c5323697cee7dfb827fdae44c AS test
WORKDIR /src
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN go test -timeout 90s -race -cover ./... || \
{ echo "--- Rerunning with -v for details ---"; \
go test -timeout 90s -race -v ./...; exit 1; }
# Markdown/JSON format stage — prettier needs node, which the Go images
# do not have. node:22.17.0-bookworm-slim (2026-08-09); ships node
# 22.17.0 and yarn 1.22.22, the versions script/bootstrap pins.
FROM node@sha256:b04ce4ae4e95b522112c2e5c52f781471a5cbc3b594527bcddedee9bc48c03a0 AS mdfmt
# Vulnerability check, built only by script/vulncheck (make vulncheck).
# No stage depends on it, so the image build does not run it.
# golang:1.27.1, 2026-10-06
FROM golang@sha256:1e93e00a31255c07e9a34c4207f3006e1501730c5323697cee7dfb827fdae44c AS vulncheck
# govulncheck v1.8.0, pinned to the commit its release tag names.
RUN go install golang.org/x/vuln/cmd/govulncheck@709015412431dd2b5b28a53c06c70bc02d49074c
WORKDIR /src
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN govulncheck ./...
COPY package.json yarn.lock ./
RUN yarn install --frozen-lockfile
# Build stage. Nothing is wanted from the lint or test phase; the copies
# are what make BuildKit build them first, so this stage cannot run
# unless lint and test passed. The Debian Go image ships git, which the
# version step below needs.
# golang:1.27.1, 2026-10-06
FROM golang@sha256:1e93e00a31255c07e9a34c4207f3006e1501730c5323697cee7dfb827fdae44c AS builder
COPY . .
# No make in this image; call the script entrypoint directly.
RUN script/prettier --check
# Build stage — tests and compilation
# golang:1.23 (2026-03-14)
FROM golang@sha256:60deed95d3888cc5e4d9ff8a10c54e5edc008c6ae3fba6187be6fb592e19e8c0 AS builder
# Force BuildKit to run the lint and mdfmt stages by creating stage dependencies
COPY --from=lint /src/go.sum /dev/null
COPY --from=test /src/go.sum /dev/null
# A tar-stream context keeps the sender's file owners, which git refuses.
RUN git config --system --add safe.directory /src
COPY --from=mdfmt /src/go.sum /dev/null
WORKDIR /src
COPY go.mod go.sum ./
RUN go mod download
COPY . .
# The revision `mfer version` prints, stamped into main.Gitrev: the
# VERSION build arg when one is given, otherwise `git describe --tags
# --always` on the .git in the build context. With .git present, a
# version that is still empty, dev or unknown fails the build: git is
# missing or could not read the checkout.
RUN make test
# A build context sent as a tar archive, as upaas sends it, keeps its files'
# owners, and git refuses to read a checkout owned by another user.
RUN git config --system --add safe.directory /src
# The revision `mfer version` prints, stamped into main.Gitrev: the VERSION
# build argument when one is given (script/docker passes one), otherwise
# `git describe --tags --always` of the .git the build context carries: the
# tag on a tagged commit, tag-N-gHASH on a commit after one, the short commit
# when no tag is reachable. git ships in this base image. A context that
# carries .git and still yields no version fails the build.
ARG VERSION
RUN VERSION="${VERSION:-$(git describe --tags --always)}"; \
if [ -e .git ]; then \
case "$VERSION" in ""|dev|unknown) \
echo "version is '$VERSION' although .git is present" >&2; \
exit 1 ;; \
esac; \
RUN version="${VERSION:-$(git describe --tags --always)}"; \
if [ -e .git ] && { [ -z "$version" ] || [ "$version" = dev ] || \
[ "$version" = unknown ]; }; then \
echo "no version could be derived although the build context carries .git" >&2; \
exit 1; \
fi; \
CGO_ENABLED=0 go build -trimpath \
-ldflags="-s -w -X main.Gitrev=${VERSION}" \
-o /mfer ./cmd/mfer/
cd cmd/mfer && \
CGO_ENABLED=0 go build -tags urfave_cli_no_docs -ldflags "-X main.Gitrev=$version" -o /mfer .
# Fail unless /mfer is statically linked: scratch has no C library to run it.
RUN ldd /mfer 2>&1 | grep -q 'not a dynamic executable'
# Runtime stage, and the last one.
FROM scratch
# scratch has no CA certificates; fetch needs them to verify HTTPS servers.
COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
docs/FORMAT.md → FORMAT.md
+8 -23
View File
@@ -6,11 +6,8 @@ Version 1.0
An `.mf` file is a binary manifest that describes a directory tree of files,
including their paths, sizes, and cryptographic checksums. It supports optional
GPG signatures for integrity verification and optional timestamps and file
permissions for metadata preservation.
Nothing goes in the 1.0 manifest that 1.0 does not read or write: no field is
reserved or kept for later use.
GPG signatures for integrity verification and optional timestamps for metadata
preservation.
## File Structure
@@ -22,7 +19,7 @@ An `.mf` file consists of two parts, concatenated:
There is no length prefix or version byte between the magic and the protobuf
message. The protobuf message extends to the end of the file.
See [`mfer/mf.proto`](../mfer/mf.proto) for exact field numbers and types.
See [`mfer/mf.proto`](mfer/mf.proto) for exact field numbers and types.
## Outer Message (`MFFileOuter`)
@@ -53,7 +50,7 @@ enforce a decompression size limit to prevent decompression bombs. The reference
implementation limits decompressed size to 256 MB. It writes zstd frames with a
window of at most 8 MiB, the largest window the zstd format recommends decoders
support, and refuses frames that ask for a larger one. It also refuses an inner
message whose file entries, hashes, timestamps and MIME types, counted at 176,
message whose file entries, hashes, timestamps and MIME types, counted at 160,
112, 64 and 16 bytes each, add up to more than 8 times its size.
## Inner Message (`MFFile`)
@@ -80,21 +77,9 @@ Each file entry contains:
| `mimeType` | 301 | string (optional) | MIME type |
| `mtime` | 302 | Timestamp (optional) | Modification time |
| `ctime` | 303 | Timestamp (optional) | Change time (inode metadata change) |
| `mode` | 304 | uint32 | Permission bits (see File Mode) |
## File Mode
`mode` holds a file's Unix permission bits, the nine `rwx` bits, so it is never
above `0777` (octal); the setuid, setgid and sticky bits are never recorded.
Writers record `0000` unless whoever creates the manifest asks for permissions.
`0000`, the proto3 default, means no mode was recorded: readers never check or
apply it.
The reference implementation records modes when `gen` or `freshen` is given
`--include-permissions`. `check` fails a file whose permission bits differ from
a recorded mode other than `0000`. `fetch` sets a recorded mode other than
`0000` on each file it writes, and refuses a manifest that records a mode above
`0777` before it requests any file.
Field 304 (`atime`) has been removed from the specification. Access time is
volatile and non-deterministic; it is not useful for integrity verification.
## Path Rules
@@ -145,7 +130,7 @@ By default, manifests are generated deterministically:
- File entries are sorted by `path` in **lexicographic byte order**
- `createdAt` is omitted unless explicitly requested
- `mode` is `0000` unless explicitly requested
- `atime` is never included (field removed from schema)
This ensures that two independent runs over the same directory tree produce
byte-identical `.mf` files (assuming file contents and metadata have not
@@ -158,6 +143,6 @@ The recommended MIME type for `.mf` files is `application/octet-stream`. The
## Reference
- Proto definition: [`mfer/mf.proto`](../mfer/mf.proto)
- Proto definition: [`mfer/mf.proto`](mfer/mf.proto)
- Reference implementation:
[git.eeqj.de/sneak/mfer](https://git.eeqj.de/sneak/mfer)
Makefile
+82 -30
View File
@@ -1,8 +1,20 @@
.PHONY: bootstrap setup test lint fmt fmt-check check docker hooks build generate fuzz vulncheck
export DOCKER_BUILDKIT := 1
export PROGRESS_NO_TRUNC := 1
GOPATH := $(shell go env GOPATH)
export PATH := $(PATH):$(GOPATH)/bin
SOURCEFILES := mfer/*.go mfer/*.proto internal/*/*.go cmd/*/*.go go.mod go.sum
ARCH := $(shell uname -m)
GITREV_BUILD := $(shell bash $(PWD)/bin/gitrev.sh 2>/dev/null || echo unknown)
APPNAME := mfer
VERSION := 0.1.0
export DOCKER_IMAGE_CACHE_DIR := $(HOME)/Library/Caches/Docker/$(APPNAME)-$(ARCH)
GOLDFLAGS += -X main.Version=$(VERSION)
GOLDFLAGS += -X main.Gitrev=$(GITREV_BUILD)
GOFLAGS := -ldflags "$(GOLDFLAGS)"
# Makefile targets are thin shims; the implementations live in script/
# per the scripts-to-rule-them-all pattern (see the Entrypoints section
# of README.md).
.PHONY: bootstrap setup docker default run ci test fuzz check lint fmt fmt-check fmt-check-go fmt-check-md hooks fixme generate
default: fmt test
bootstrap:
@script/bootstrap
@@ -10,35 +22,75 @@ bootstrap:
setup:
@script/setup
run: ./bin/mfer
./$<
./$< gen
ci: test
test:
@script/test
lint:
@script/lint
fmt:
@script/fmt
fmt-check:
@script/fmt-check
check:
@script/check
docker:
@script/docker
hooks:
@script/install-precommit
build:
@script/build
generate:
@script/generate
fuzz:
@script/fuzz
vulncheck:
@script/vulncheck
fixme:
@grep -nir fixme . | grep -v Makefile
check:
@script/check
fmt-check:
@script/fmt-check
# Halves of fmt-check, for environments that have only one toolchain:
# the Docker lint stage has Go but no node, the markdown stage the reverse.
fmt-check-go:
@script/fmt-check-go
fmt-check-md:
@script/prettier --check
hooks:
@script/install-precommit
generate:
@script/generate
bin/mfer: $(SOURCEFILES)
cd cmd/mfer && go build -tags urfave_cli_no_docs -o ../../bin/mfer $(GOFLAGS) .
clean:
rm -rfv bin/mfer cmd/mfer/mfer *.dockerimage
fmt:
@script/fmt
lint:
@script/lint
docker:
@script/docker
sneak-mfer.$(ARCH).tzst.dockerimage: $(SOURCEFILES) vendor.tzst modcache.tzst
docker build --progress plain --build-arg GITREV=$(GITREV_BUILD) -t sneak/mfer .
docker save sneak/mfer | pv | zstdmt -19 > $@
du -sh $@
godoc:
open http://127.0.0.1:6060
godoc -http=:6060
vendor.tzst: go.mod go.sum
go mod tidy
go mod vendor
cd vendor && tar -c . | pv | zstdmt -19 > $(PWD)/$@.tmp
rm -rf vendor
mv $@.tmp $@
modcache.tzst: go.mod go.sum
go mod tidy
cd $(HOME)/go/pkg && chmod -R u+rw . && rm -rf mod sumdb
go mod download -x
cd $(shell go env GOMODCACHE) && tar -c . | pv | zstdmt -19 > $(PWD)/$@.tmp
mv $@.tmp $@
README.md
+38 -78
View File
@@ -23,13 +23,13 @@ javascript library is planned.
# Getting Started
`mfer` builds from source with Go 1.27.1 or later. The generated protobuf code
`mfer` builds from source with a Go 1.23+ toolchain. The generated protobuf code
is committed, so no `protoc` toolchain is required:
```sh
git clone https://git.eeqj.de/sneak/mfer.git
cd mfer
make build
go build -o bin/mfer ./cmd/mfer
```
Generate a manifest for a directory tree, verify it later, and fetch a published
@@ -40,14 +40,12 @@ tree by URL:
bin/mfer gen .
# Verify the files on disk against the manifest. Exits nonzero if any file
# it lists is missing or corrupted; warns about files it does not list.
# is missing or corrupted.
bin/mfer check index.mf
# Download and cryptographically verify a tree published over HTTP into
# ./mirror: mfer fetches <url>/index.mf, downloads every file it lists,
# skipping any already there with the right hash, then saves the manifest as
# mirror/index.mf.
bin/mfer fetch --dest mirror https://example.com/tree/
# Download and cryptographically verify a tree published over HTTP: mfer
# fetches <url>/index.mf, then downloads every file it lists.
bin/mfer fetch https://example.com/tree/
```
Run `bin/mfer help` for the full command list, or `bin/mfer <command> --help`
@@ -55,9 +53,9 @@ for a single command's options.
# Build Status
CI runs `script/cibuild`, which runs `script/bootstrap` and `script/check`, then
builds the Docker image with `--no-cache`, so the lint and test phases in the
`Dockerfile` run on every build. The `main` branch must always be green.
CI runs `script/cibuild`, which builds the Docker image with `--no-cache`, so
the formatting, lint and test steps in the `Dockerfile` run on every build. The
`main` branch must always be green.
# Entrypoints
@@ -67,62 +65,46 @@ standard: normalized scripts in `script/` are the entrypoints for the
development workflow, and the Makefile targets are thin shims that call them. We
provide:
- `script/bootstrap` — install all dependencies, idempotently: Go and the
modules of `go.mod`; node (the version `.nvmrc` names, through nvm when there
is no node on `PATH`) and yarn, plus the prettier version pinned in
`package.json`/`yarn.lock`; `gofumpt` v0.12.0 and `protoc-gen-go` v1.36.12,
installed into `bin/` with `go install`, each pinned to a commit; and `protoc`
33.4, unpacked into `bin/protoc` from its release archive once the archive
matches the sha256 the script holds for this platform. Each of those three is
installed again whenever the one in `bin/` reports another version.
golangci-lint is not installed, it runs only in Docker
- `script/bootstrap` — install all dependencies (Go, Go module download, and
node/yarn plus the prettier version pinned in `package.json`/`yarn.lock`),
idempotently; golangci-lint is not installed, it runs only in Docker
- `script/setup` — make a fresh clone ready for development: runs
`script/bootstrap`, then `script/install-precommit`
- `script/projectname` — output the project name (`mfer`); used by other scripts
such as `script/docker`
- `script/test` — run the test suite in Docker: builds only the `test` stage of
the `Dockerfile`, whose build runs `go test -race`, uncached so it runs every
time; one test fails when `mfer/mf.proto` no longer matches the hash
`script/generate` recorded
- `script/build` (`make build`) — build the `mfer` binary into `bin/mfer`,
stamped with the revision `mfer version` prints: the output of
`git describe --tags --always --dirty`, as `script/docker` passes it
- `script/test` — run the test suite (`go test`); one test fails when
`mfer/mf.proto` no longer matches the hash `script/generate` recorded
- `script/generate` (`make generate`) — regenerate `mfer/mf.pb.go` from
`mfer/mf.proto` and record the hash of that `mfer/mf.proto` in
`mfer/mf.proto.sha256`; the only thing that regenerates the committed
`mfer/mf.pb.go`. It runs the `protoc` that `script/bootstrap` unpacks into
`bin/protoc` and the `protoc-gen-go` it installs into `bin/`, refusing any
version of either but the pinned one
`mfer/mf.pb.go`. It needs the exact versions that wrote the committed file,
and refuses to run with any other: `protoc` 33.4 (unpack
`protoc-33.4-<platform>.zip` from
[its release](https://github.com/protocolbuffers/protobuf/releases/tag/v33.4)
and put its `bin/protoc` on `PATH`) and `protoc-gen-go` v1.36.11
(`go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.36.11`, which
installs it in `$(go env GOPATH)/bin`; `make generate` adds that directory to
`PATH`)
- `script/fuzz` — fuzz the manifest parser for one minute; run by hand
(`make fuzz`), never by CI, while `script/test` runs its committed seed corpus
as ordinary tests
- `script/lint` — run `golangci-lint` in Docker: builds only the `lint` stage of
the `Dockerfile`, whose build runs the linter, uncached so it runs every time
- `script/vulncheck` (`make vulncheck`) — run `govulncheck` in Docker: builds
only the `vulncheck` stage of the `Dockerfile`, uncached, which reports known
vulnerabilities in the code `mfer` calls, from the Go vulnerability database.
`script/check` does not run it, so an advisory published later never turns the
gate red
- `script/fmt` — format all code and docs (writes): `script/gofumpt --write` and
the `Dockerfile` (the Go format check, then the linter), uncached so it runs
every time, then removes the image
- `script/fmt` — format all code and docs (writes): `gofumpt` and
`script/prettier --write`
- `script/gofumpt` — run `gofumpt` over every Go file in the repository in the
given mode, `--write` or `--check`, with the `bin/gofumpt` that
`script/bootstrap` installs, refusing any version but the pinned one;
`script/fmt` and `script/fmt-check` both go through it, so they cannot
disagree about Go formatting
- `script/prettier` — run prettier over the repository's canonical file set
(Markdown and JSON, minus `.prettierignore`) in the given mode, `--write` or
`--check`, with the prettier version `yarn.lock` pins, run by the node on
`PATH` or else the one `script/bootstrap` installed through nvm; the single
definition of that file set, so `script/fmt` and `script/fmt-check` cannot
disagree about it
- `script/fmt-check` — check formatting without writing:
`script/gofumpt --check` plus `script/prettier --check`
`--check`; the single definition of that file set, so `script/fmt` and
`script/fmt-check` cannot disagree about it
- `script/fmt-check` — check formatting without writing: `script/fmt-check-go`
plus `script/prettier --check`
- `script/fmt-check-go` — the Go half of `script/fmt-check`, on its own, for the
Docker lint stage, whose image has no node
- `script/check` — run `script/test`, `script/lint`, and `script/fmt-check`
- `script/docker` — build the Docker image tagged with the project name
- `script/cibuild` — CI entrypoint: runs `script/bootstrap` and `script/check`,
then builds the image with the same command as `script/docker`, uncached, so
the lint and test phases in the `Dockerfile` run every time
- `script/cibuild` — CI entrypoint: builds the image with the same command as
`script/docker`, uncached, so the checks in the Dockerfile run every time
- `script/precommit` — pre-commit checks: `go mod tidy` verification, then
`script/check`
- `script/install-precommit` — install the git pre-commit hook that runs
@@ -260,41 +242,19 @@ are now tracked only in the [issues](https://git.eeqj.de/sneak/mfer/issues).
as question 10 on [issue 82](https://git.eeqj.de/sneak/mfer/issues/82).
- Should the on-disk serialization format be proto3 or json? Settled: it is
proto3, see `docs/FORMAT.md` and `mfer/mf.proto`.
proto3, see `FORMAT.md` and `mfer/mf.proto`.
# Tool Examples
- `mfer gen` / `mfer gen .`
- recurses under current directory and writes out an `index.mf`
- records every file's mode as `0000` unless given `--include-permissions`,
which records each file's permission bits (`0777` at most)
- `mfer check` / `mfer check .`
- verifies checksums of all files in manifest, displaying error and exiting
nonzero if any files are missing or corrupted, or have permission bits
other than the mode the manifest records, unless that is `0000`
- warns about each file under the base directory that the manifest does not
list, hidden files included; with `--no-extra-files` each one is a failure
instead
nonzero if any files are missing or corrupted
- `mfer fetch https://example.com/stuff/`
- fetches `/stuff/index.mf` and downloads all files listed in manifest into
the current directory, or the one given with `--dest`, and assures
cryptographic integrity of downloaded files. A file already there with the
size, hash and recorded mode the manifest lists is skipped. Once every
file is in place, the manifest is saved there as `index.mf`, so
`mfer check` can verify the tree later. Each file is downloaded to a temp
file beside it, such as `.a.txt.tmp` for `a.txt`, given the mode the
manifest records unless that is `0000`, then moved into place. A manifest
is refused before any file is downloaded if it records a mode above
`0777`, or lists a file where fetch writes another: at another listed file
or a directory one is in, at the temp file of a listed file, or at
`index.mf` or `.index.mf.tmp` at the top of the tree. Names are compared
in any letter case, on every filesystem, since on a case-insensitive one
`A.txt` and `a.txt` are one file; a directory two listed files are in must
be spelled alike in both.
- `mfer fetch --require-signature <fingerprint> https://example.com/stuff/`
- as above, but first refuses a manifest not signed by the key with that
fingerprint, as `mfer check --require-signature` does, before downloading
any file.
- fetches `/stuff/index.mf` and downloads all files listed in manifest,
optionally resuming any that already exist locally, and assures
cryptographic integrity of downloaded files.
# Implementation Plan
REPO_POLICIES.md
+84 -355
View File
@@ -1,6 +1,6 @@
---
title: Repository Policies
last_modified: 2026-10-04
last_modified: 2026-07-06
---
This document covers repository structure, tooling, and workflow standards. Code
@@ -60,28 +60,17 @@ style conventions are in separate documents:
prerequisite since nvm requires bash. yarn is then pinned via
`corepack prepare yarn@<version> --activate`. Never install "latest" or "lts";
always exact versions. `script/cibuild` runs the CI build: it changes to the
repo root, runs `script/bootstrap`, runs `script/check`, and builds the image
with the version; the Gitea workflow calls it. **`script/cibuild` runs
`script/bootstrap` first**, because the workflow checks out the repo and runs
nothing else, while `script/fmt-check` runs the formatter on the host: on a
pristine checkout with nothing installed the run dies there, after the
containerised gates have passed. **The bootstrap alone is not enough**:
`script/bootstrap` installs node and yarn under nvm and leaves neither on the
`PATH` of the shell that called it, so a bare `yarn` still exits 127. The host
entrypoints that need yarn — `script/fmt` and `script/fmt-check` — therefore
source nvm for the pinned node version before invoking it, exactly as
`script/bootstrap`'s own install step does. A runner carrying nothing but
docker and git then gets through `script/check`. Four further scripts are our
own extensions to the standard: `script/check` runs `script/test`,
`script/lint` and `script/fmt-check`; `script/precommit` is what the git
pre-commit hook runs, and it calls `script/check`; `script/install-precommit`
installs the git pre-commit hook (the `make hooks` target shims to it); and
`script/projectname` (literally that filename) simply outputs the project's
name. Scripts that need the name call `script/projectname` — e.g.
`script/docker` assembles its image tag from it — so those scripts stay
byte-identical across all repos. Repo-type-specific pre-commit extras (e.g.
`go mod tidy` verification in Go repos) belong in `script/precommit`, not in
the hook itself. Model scripts are at
repo root and runs `docker build .`; the Gitea workflow calls it. Four further
scripts are our own extensions to the standard: `script/check` runs
`script/test`, `script/lint`, and `script/fmt-check`; `script/precommit` is
what the git pre-commit hook runs, and it calls `script/check`;
`script/install-precommit` installs the git pre-commit hook (the `make hooks`
target shims to it); and `script/projectname` (literally that filename) simply
outputs the project's name. Scripts that need the name call
`script/projectname` — e.g. `script/docker` assembles its image tag from it —
so those scripts stay byte-identical across all repos. Repo-type-specific
pre-commit extras (e.g. `go mod tidy` verification in Go repos) belong in
`script/precommit`, not in the hook itself. Model scripts are at
`https://git.eeqj.de/sneak/prompts/raw/branch/main/script/<name>`. The README
must document the provided scripts in an **Entrypoints** section (see the
README requirements below).
@@ -100,198 +89,87 @@ style conventions are in separate documents:
contributor should be able to understand the entire development workflow by
reading the Makefile.
- Every repo should have a `Dockerfile`, and it carries the repo's gates: a
`lint` phase and a `test` phase, with the final stage depending on both so the
image cannot be built unless they pass. For non-server repos the final stage
brings up a development environment; for server repos it is the runtime image.
The gate phases and the build stage start from their pinned base images and
install what those images lack either inline, as the canonical Go `Dockerfile`
below does for `git`, or by running `script/bootstrap`, as the `prompts`
repo's own `Dockerfile` does for its yarn packages. The development
environment stage installs development prerequisites by running
`script/bootstrap` rather than duplicating its installs inline. A stage that
runs `script/bootstrap` COPYs `script/` and the dependency manifests
(`package.json` + `yarn.lock`, `go.mod` + `go.sum`, etc.) before running it.
- Every repo should have a `Dockerfile`. All Dockerfiles must run `make check`
as a build step so the build fails if the branch is not green. For non-server
repos, the Dockerfile should bring up a development environment and run
`make check`. For server repos, `make check` should run as an early build
stage before the final image is assembled. Dockerfiles install development
prerequisites by running `script/bootstrap` rather than duplicating installs
inline; COPY `script/` and the dependency manifests (`package.json` +
`yarn.lock`, `go.mod` + `go.sum`, etc.) before running it so the bootstrap
layer stays cached until dependencies change.
- **Linting and testing run in Docker, as phases of the `Dockerfile`.** There is
no separate lint file. `script/lint` and `script/test` each build one phase
and nothing else:
- **Dockerfiles must use a separate lint stage for fail-fast feedback.** Go
repos use a multistage build where linting runs in an independent stage based
on the `golangci/golangci-lint` image (pinned by hash). This stage runs
`make fmt-check` and `make lint` before the full build begins. The build stage
then declares an explicit dependency on the lint stage via
`COPY --from=lint /src/go.sum /dev/null`, which forces BuildKit to complete
linting before proceeding to compilation and tests. This ensures lint failures
surface in seconds rather than minutes, without blocking on dependency
download or compilation in the build stage.
```sh
docker build --no-cache --target lint -t "$(script/projectname)-lint" .
docker build --no-cache --target test -t "$(script/projectname)-test" .
```
**A stage that is not the last one in the file is built only when the final
stage's chain depends on it, or when `--target` names it.** That is why the
two gates are always invoked by name here, and why the final stage carries a
`COPY --from=` of a harmless file from each of them: without that edge a
plain `docker build .` builds the last stage alone and exits 0 having linted
and tested nothing.
**Every `docker build` in `script/` is tagged**, here and in
`script/cibuild` and `script/docker`. An untagged build leaves a dangling
image behind on every invocation, on every developer host and every CI
runner; a tagged one replaces the previous image.
Inside a phase the tool is invoked directly — `golangci-lint`, `go test`,
`eslint`, `prettier` — never through `make lint` or `script/test`, which are
themselves a `docker build` and would recurse into a daemon that does not
exist in a build step. Formatting is the exception and stays on the host:
`script/fmt` writes the working tree, and `script/fmt-check` is its
read-only twin.
**No lint verdict may come from a host invocation of the linter.** On a
shared host golangci-lint reads a result cache keyed on file content rather
than location, so a second checkout of the same content is served the first
one's findings, and a host-global lock in `$TMPDIR` makes concurrent runs
exit non-zero with `parallel golangci-lint is running` — a status a caller
cannot tell from real findings. Both have produced wrong verdicts in this
org, in both directions. A container has its own cache, its own `TMPDIR` and
a digest-pinned binary, so neither is reachable.
- **Any build that runs checks is built with `--no-cache`.** Docker invalidates
a `COPY` layer only when the copied content changes, so on an unchanged tree
the check `RUN` is served from cache, nothing executes, and the build still
exits 0. Every `docker build` in `script/` therefore passes `--no-cache`:
`script/lint`, `script/test`, `script/cibuild` and `script/docker` are the
four, and there is no fifth — `script/check` runs the two gate phases and
`script/fmt-check`, and builds no image of its own. A bare `docker build .` is
not evidence that anything ran: a sub-second build reporting success is a
cache hit, not a result. Never invalidate by pruning — `docker builder prune`
and friends destroy a build cache shared with every other build on the host.
When a check is added or changed, prove it works by planting a defect it must
catch and watching the run fail on it, then revert the defect. A green run
alone shows neither that the check ran nor that it covers what it should.
- **The gate phases are separate stages, and the build stage depends on both.**
The lint phase is based on the `golangci/golangci-lint` image (pinned by
hash), so lint failures surface in seconds rather than after a full compile,
and the test phase is based on the Debian Go image. The canonical Go repo
`Dockerfile`:
The standard pattern for a Go repo Dockerfile is:
```dockerfile
# Lint phase
# Lint stage — fast feedback on formatting and lint issues
# golangci/golangci-lint:v2.x.x, YYYY-MM-DD
FROM golangci/golangci-lint@sha256:... AS lint
WORKDIR /src
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN golangci-lint run --config .golangci.yml ./...
RUN make fmt-check
RUN make lint
# Test phase. -race needs cgo and so a C compiler, which the Debian Go
# image ships and the alpine one does not.
# golang:1.x, YYYY-MM-DD
FROM golang@sha256:... AS test
WORKDIR /src
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN go test -timeout 90s -race -cover ./... || \
{ echo "--- Rerunning with -v for details ---"; \
go test -timeout 90s -race -v ./...; exit 1; }
# Build stage. Nothing is wanted from either phase above; the copies
# are what make BuildKit build them first, so this stage cannot run
# unless lint and test passed.
# Build stage
# golang:1.x-alpine, YYYY-MM-DD
FROM golang@sha256:... AS builder
COPY --from=lint /src/go.sum /dev/null
COPY --from=test /src/go.sum /dev/null
RUN apk add --no-cache git
# A tar-stream context keeps the sender's file owners, which git refuses.
RUN git config --system --add safe.directory /src
WORKDIR /src
# Force BuildKit to run the lint stage before proceeding
COPY --from=lint /src/go.sum /dev/null
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN make test
# The VERSION build arg when one is given, otherwise
# `git describe --tags --always` on the .git in the build context. With
# .git present, a version that is still empty, dev or unknown fails the
# build: git is missing or could not read the checkout.
ARG VERSION
RUN VERSION="${VERSION:-$(git describe --tags --always)}"; \
if [ -e .git ]; then \
case "$VERSION" in ""|dev|unknown) \
echo "version is '$VERSION' although .git is present" >&2; \
exit 1 ;; \
esac; \
fi; \
CGO_ENABLED=0 go build -trimpath \
-ldflags="-s -w -X main.Version=${VERSION}" \
-o /app ./cmd/app/
ARG VERSION=dev
RUN CGO_ENABLED=0 go build -trimpath \
-ldflags="-s -w -X main.Version=${VERSION}" \
-o /app ./cmd/app/
# Runtime stage, and the last one
# Runtime stage
FROM alpine@sha256:...
COPY --from=builder /app /usr/local/bin/app
ENTRYPOINT ["app"]
```
Key points:
- The lint phase uses the `golangci/golangci-lint` image directly (it has
both Go and the linter), so nothing needs installing.
- `COPY --from=<phase> /src/go.sum /dev/null` is a no-op copy whose only
purpose is the ordering edge. BuildKit runs stages in parallel by default,
and a stage nothing depends on is not built at all, so without these two
lines a red gate would not fail the build.
- Keep the runtime stage last, and if you add a stage after it, give it the
same two copies. A plain `docker build .` builds the last stage's chain
and nothing else.
- The lint stage uses the `golangci/golangci-lint` image directly (it
includes both Go and the linter), so there is no need to install the
linter separately.
- `COPY --from=lint /src/go.sum /dev/null` is a no-op file copy that creates
a stage dependency. BuildKit runs stages in parallel by default; without
this line, the build stage would not wait for lint to finish and a lint
failure might not fail the overall build.
- If the project uses `//go:embed` directives that reference build artifacts
(e.g. a web frontend compiled in a separate stage), the lint phase must
(e.g. a web frontend compiled in a separate stage), the lint stage must
create placeholder files so the embed directives resolve. Example:
`RUN mkdir -p web/dist && touch web/dist/index.html web/dist/style.css`.
- If the project requires CGO or system libraries for linting, install them
in the lint phase. The `golangci/golangci-lint` image is Debian-based and
has no `apk`, so install with `apt-get` under the Debian package name
(`libvips-dev`, where alpine says `vips-dev`), and delete the package
lists in the same `RUN`, so the layer does not keep them:
```dockerfile
RUN apt-get update \
&& apt-get install -y --no-install-recommends libvips-dev \
&& rm -rf /var/lib/apt/lists/*
```
- `.dockerignore` lets `.git` into the build context. It keeps out every git
`config` at any depth (`**/.git/config`, `**/.git/modules/**/config`): the
repository's own, each submodule's under `.git/modules/`, and that of a
submodule keeping its own `.git` directory. `git describe` does not need
them, and each can hold a credential: a password in a remote URL, or the
token the CI checkout step stores there. A submodule whose name has a
`config` segment (`config`, `deploy/config`, `config/lib`) loses its whole
git directory to `**/.git/modules/**/config`, and Go's version stamping
then fails the build: give it a name without that segment
(`git submodule add --name`). The stage that compiles has `git` (the
Debian Go image has it; an alpine one needs `apk add --no-cache git`) and
takes the version from the `VERSION` build argument when one is given,
otherwise from `git describe --tags --always`. That gives the tag on a
tagged commit; on a later commit, the tag, the number of commits since it
and the short commit (`v1.2.3-4-gabc1234`); and the short commit when no
tag is reachable. The stage that compiles also marks its working directory
safe for git (`git config --system --add safe.directory /src`): a context
sent as a tar stream keeps the sender's file owners, and git refuses a
checkout owned by another user, so the version would come out empty.
`ARG VERSION` has no default, and the build fails if the context carries
`.git` and the version still comes out empty, `dev` or `unknown`. A plain
`docker build .` with no build arguments must succeed; a Dockerfile that
refuses an empty build argument drops that refusal and keeps the argument.
The lint stage should not depend on the actual build output — it exists to
fail fast.
- If the project requires CGO or system libraries for linting (e.g.
`vips-dev`), install them in the lint stage with `apk add`.
- The build stage runs `make test` after compilation setup. Tests run in the
build stage, not the lint stage, because they may require compiled
artifacts or heavier dependencies.
- Every repo should have a Gitea Actions workflow (`.gitea/workflows/`) that
runs `script/cibuild` on push, and checks out the repo as its only other step.
That script bootstraps, runs the gate phases, and then builds the image, so a
successful run means every check passed; a bare `docker build .` does not
carry the same guarantee, because its gate phases may come from the cache. The
image build is uncached and so runs the gate phases a second time. That is the
price of the rule above, and it is worth paying: the image that ships is built
from a run of its own gates rather than from a cache entry. A separate
workflow limited to `main` by a `branches` list under `on: push` cannot be
checked by review: to try a change to it, add the feature branch to that list
and push, then remove the branch from the list again before merging. Keep any
job in it that publishes behind `if: github.ref_name == 'main'`, so the run
from the feature branch publishes nothing.
runs `script/cibuild` (which runs `docker build .`) on push. Since the
Dockerfile already runs `make check`, a successful build implies all checks
pass.
- Use platform-standard formatters: `black` for Python, `prettier` for
JS/CSS/Markdown/HTML, `go fmt` for Go. Always use default configuration with
@@ -311,21 +189,14 @@ style conventions are in separate documents:
module under test to verify it compiles/parses. There is no excuse for
`make test` to be a no-op.
- `make test` must complete in under 60 seconds. That is the hard cap, and a
suite that exceeds it fails. Under 20 seconds is the target. A suite between
20 and 60 seconds is still green, but the overage must be filed as an
improvement bug against that repo. Add a 90-second timeout to the test
invocation (`go test -timeout 90s`). The backstop deliberately sits above the
hard cap so that it catches a genuinely hung test rather than a merely slow
one.
- `make test` must complete in under 20 seconds. Add a 30-second timeout in the
Makefile.
- **The test command should use the conditional verbose rerun pattern.** Run
tests without `-v` (verbose) first. If tests fail, automatically rerun with
`-v` to show full output. This keeps CI logs and `docker build` output clean
on success (just package/suite summaries) while providing full diagnostic
detail on failure (every test case, every assertion). The command lives in the
`test` phase of the `Dockerfile`, since `script/test` builds that phase; the
Makefile form below is the same pattern for any repo-local invocation:
- **`make test` should use the conditional verbose rerun pattern.** Run tests
without `-v` (verbose) first. If tests fail, automatically rerun with `-v` to
show full output. This keeps CI logs and `docker build` output clean on
success (just package/suite summaries) while providing full diagnostic detail
on failure (every test case, every assertion). The general shell pattern:
```makefile
test:
@@ -338,26 +209,11 @@ style conventions are in separate documents:
```makefile
test:
@go test -count=1 -timeout 90s -race -cover ./... || \
@go test -timeout 30s -race -cover ./... || \
{ echo "--- Rerunning with -v for details ---"; \
go test -count=1 -timeout 90s -race -v ./...; exit 1; }
go test -timeout 30s -race -v ./...; exit 1; }
```
`-count=1` is required on both invocations: it defeats Go's test _result_
cache, so neither run can report a stored pass in place of running the
tests. It leaves the build cache alone, so it costs the runtime of the suite
and no recompilation.
That cache is Go's own, separate from Docker's layer cache. Go stores a
passing result in its cache directory (`GOCACHE`), and when the same tests
run again on unchanged code it prints that result, marked `(cached)`,
without running them. That matters on a developer's machine, where this
target runs and the directory lasts from one run to the next. The `test`
phase of the `Dockerfile` needs no `-count=1`: its base image holds no
result for this repo's tests and nothing before its `go test` step runs a
test, so there is nothing to replay. `--no-cache` (above) is what makes that
step run on an unchanged tree.
Python example:
```makefile
@@ -383,84 +239,10 @@ style conventions are in separate documents:
must be in `.gitignore`. No exceptions.
- `.gitignore` should be comprehensive from the start: OS files (`.DS_Store`),
editor files (`.swp`, `*~`), in-repo agent scratch directories (`.claude/`),
language build artifacts, and `node_modules/`. Fetch the standard `.gitignore`
from `https://git.eeqj.de/sneak/prompts/raw/branch/main/.gitignore` when
setting up a new repo. These patterns are written to `.gitignore`'s own
semantics, in which an unanchored pattern already matches at every depth; they
are not a `.dockerignore` and must not be transplanted into one unmodified.
- **`.dockerignore` does not use `.gitignore` semantics, and copying patterns
across unmodified leaves secrets in the build context.** Docker matches with
`moby/patternmatcher`: `filepath.Match` semantics plus a `**` extension, so
`*` does not cross `/` and a pattern without a leading `**/` is anchored at
the build-context root. A `.dockerignore` listing `.env`, `*.pem` and `*.key`
therefore excludes only the copies at the repository root, while `config/.env`
and `certs/server.key` still reach the context and can land in an image layer
— which is more dangerous than a short file with no secret patterns at all,
because it reads as solved and stops anyone looking. Give every
depth-independent pattern the `**/` prefix and leave only genuinely
root-anchored entries unprefixed: `.claude`, and the repo's own host-built
binary, written `/myapp` and never `**/myapp`, which would also match
`cmd/myapp/` and delete the package directory from the context. Matching is
case-sensitive, and an ALL-CAPS twin per pattern still misses `Server.Key`, so
secret names use character ranges — `**/*.[kK][eE][yY]`, `**/*.[pP][eE][mM]`,
and likewise for `.envrc` and the extensionless SSH keys. Where such a pattern
also catches something the build needs, re-include it with a negation
(`!docs/example.env`); deleting the pattern reopens the exposure for every
other file it covers. Fetch the standard `.dockerignore` from
`https://git.eeqj.de/sneak/prompts/raw/branch/main/.dockerignore` and extend
it with the repo's own artifacts.
- **In-repo agent scratch belongs in both files, written to each file's own
semantics.** `.claude/` holds one worktree per in-flight agent — an entire
additional checkout of the repo — so under `COPY . .` the build context
inflates by a multiple of the repo and another session's unreviewed work can
be copied into an image layer. In `.gitignore` the entry is `.claude/`,
unanchored. In `.dockerignore` it is `.claude`, anchored and with **no** `**/`
prefix, because the prefixed form would also delete any nested directory of
that name from the build. Anchoring carries a known gap that the canonical
`.dockerignore` states in its own comment, since consuming repos receive the
file and not the tracker: the directory is created in the agent's working
directory, so a repo running agents in subdirectories still ships
`services/api/.claude/` and must add its own anchored entry there.
- **A plain `docker build .` of a clone stamps the version that
`git describe --tags --always` gives**, derived from the `.git` in the build
context as the canonical `Dockerfile` above shows. Without its failure check,
a missing `git` or an unreadable checkout would leave `-X main.Version=` empty
and the build would still exit 0. `script/docker` and `script/cibuild` pass
the version they compute on the host; it takes precedence. They do this
byte-identically across repos:
```sh
# Own line: a failing command substitution inside an argument does not
# trip `set -e`, so the inline form degrades to an empty constant.
version="$(git describe --tags --always --dirty 2>/dev/null || true)"
[ -n "$version" ] || version="unknown"
docker build --no-cache \
--build-arg VERSION="$version" \
-t "$(script/projectname)" .
```
`--always` makes an untagged repo yield an abbreviated commit hash rather
than failing, and the `[ -n "$version" ]` line is the single place the
fallback is applied — a live check that fires on a build from an export with
no `.git` and on a repository with no commits yet. Do not fold it into the
substitution as `|| echo unknown`, which makes the guard unreachable. The
Dockerfile's side is `ARG VERSION` in the stage that compiles, declared
there because `ARG` is stage-scoped; passing `VERSION` to a repo whose
Dockerfile declares no such `ARG` is ignored and costs nothing, which is why
the scripts stay byte-identical. One consequence for CI: the standard
checkout action clones shallow and fetches no tags, so a repo that embeds a
tag-derived version must set `fetch-depth: 0` on its checkout step.
- **Verify `.dockerignore` by enumerating the image, not by reading the
patterns.** Plant files at the root _and_ at least two directories deep, build
a probe image that does `COPY . .`, and list what actually landed
(`docker run --rm --entrypoint find IMAGE /app`). The `transferring context`
size is not a substitute: a nested secret is a few bytes, and BuildKit
transfers only the delta from the previous build.
editor files (`.swp`, `*~`), language build artifacts, and `node_modules/`.
Fetch the standard `.gitignore` from
`https://git.eeqj.de/sneak/prompts/raw/branch/main/.gitignore` when setting up
a new repo.
- **No build artifacts in version control.** Code-derived data (compiled
bundles, minified output, generated assets) must never be committed to the
@@ -476,56 +258,9 @@ style conventions are in separate documents:
- Make all changes on a feature branch. You can do whatever you want on a
feature branch.
- `.golangci.yml` is standardized. The vendored copy in a consuming repo must
_NEVER_ be modified by an agent: fetch it from
`https://git.eeqj.de/sneak/prompts/raw/branch/main/.golangci.yml` and keep it
byte-identical, so that no repo can quietly loosen its own linting. Linter
configuration changes are made to the canonical copy in the `prompts` repo and
reach consuming repos by re-vendoring; an agent may open a PR against
canonical, which only the user merges. One list is exempt from byte-identity,
because it cannot be written once for every repo: the `deny` list of the
`test-support` depguard rule, where a repo names its own test-support packages
by full import path. A repo adds entries there and changes nothing else, and a
re-vendor carries its entries forward. The canonical golangci-lint version is
v2.14.0 (released 2026-09-24), pinned as the digest of the lint phase's base
image
(`golangci/golangci-lint@sha256:ad862ba6b3798cbe0fd9fd7408d498fd74fbd2623a92406b2fd3898faf0bf98f`,
which reports `2.14.0 built with go1.27.0 from 114493f9`). A module's `go`
directive must not name a newer Go minor version than the one golangci-lint
was built with, or golangci-lint refuses to lint it: this release lints
`go 1.27.1` but not `go 1.28`. That digest is the only pin, since no repo
installs golangci-lint on the host. A repo sets the lint phase digest to the
one named here and re-vendors `.golangci.yml` in the same commit, whichever of
the two prompted the change: the canonical copy can name linters that an older
golangci-lint rejects, and a newer golangci-lint can add linters that
`default: all` switches on until the canonical copy disables them.
- **`script/bootstrap` installs a pinned tool by comparing versions, never by
testing presence.** An `if ! command -v <tool>; then install; fi` guard tests
`PATH` only, so on an already-provisioned machine the pin is inert and a
version bump is a silent no-op — while the Dockerfile, installing into a clean
image, gets the pinned version, so a local `make check` and `make docker` can
disagree about what the tool even is. The canonical form:
- compares the installed version against the pin over the **whole** version
token; a parser that stops at the first `-` reports `2.12.2` for a host
running `2.12.2-rc1` and skips the install;
- treats absent, non-zero, empty or unrecognised `--version` output as a
mismatch, so the failure direction is a redundant install and never a
skipped one;
- after installing, re-resolves the binary the way callers do — `hash -r`,
then through `PATH`, not through the directory the installer wrote to —
and fails naming the resolved path, since an install that a shadowing
binary hides succeeds while changing nothing any caller sees;
- is actually called, and prints the version on both success paths: a
function defined and never invoked has the same exit status and the same
empty output as one that worked.
Keep it POSIX sh: no arrays, no `[[`, no `grep -P`.
A Go tool a repo needs on the host is installed with `go install` pinned to
a commit hash (`go install <package>@<commit hash>`). It is never tracked as
a `go.mod` tool dependency or through a `tools.go` file, either of which
pulls the tool's own dependencies into the repo's `go.mod` and `go.sum`.
- `.golangci.yml` is standardized and must _NEVER_ be modified by an agent, only
manually by the user. Fetch from
`https://git.eeqj.de/sneak/prompts/raw/branch/main/.golangci.yml`.
- When pinning images or packages by hash, add a comment above the reference
with the version and date (YYYY-MM-DD).
@@ -639,14 +374,12 @@ style conventions are in separate documents:
settings.
- Avoid putting files in the repo root unless necessary. Root should contain
only project-level config files (`README.md`, `AGENTS.md`, `Makefile`,
`Dockerfile`, `LICENSE`, `.gitignore`, `.editorconfig`, `REPO_POLICIES.md`,
and language-specific config). Everything else goes in a subdirectory.
Canonical subdirectory names:
only project-level config files (`README.md`, `Makefile`, `Dockerfile`,
`LICENSE`, `.gitignore`, `.editorconfig`, `REPO_POLICIES.md`, and
language-specific config). Everything else goes in a subdirectory. Canonical
subdirectory names:
- `bin/` — executable scripts and tools
- `cmd/` — Go command entrypoints; thin only: one `main.go` per binary whose
body is a single call into `internal/` or `pkg/`, no project logic in
`cmd/`
- `cmd/` — Go command entrypoints
- `configs/` — configuration templates and examples
- `deploy/` — deployment manifests (k8s, compose, terraform)
- `docs/` — documentation and markdown (README.md stays in root)
@@ -673,7 +406,3 @@ style conventions are in separate documents:
- Go: `go.mod`, `go.sum`, `.golangci.yml`
- JS: `package.json`, `yarn.lock`, `.prettierrc`, `.prettierignore`
- Python: `pyproject.toml`
- Guidance for coding agents lives in one `AGENTS.md` at the repository root. It
is never committed under a file or directory named after one agent tool, such
as `CLAUDE.md` or `.claude/`, and never split into separate memory files.
bin/gitrev.sh
+7
View File
@@ -0,0 +1,7 @@
#!/bin/bash
#
if [[ ! -z "$GITREV" ]]; then
echo $GITREV
else
git describe --tags --always --dirty=-dirty
fi
bin/usage.sh
-23
View File
@@ -1,23 +0,0 @@
#!/usr/bin/env bash
set -euo pipefail
# usage.sh - Generate and check a manifest from the repo
# Run from repo root: bin/usage.sh
cleanup() {
rm -rf "$TMPDIR"
}
main() {
TMPDIR=$(mktemp -d)
MANIFEST="$TMPDIR/index.mf"
trap cleanup EXIT
echo "Building mfer..."
go build -o "$TMPDIR/mfer" ./cmd/mfer
"$TMPDIR/mfer" generate -o "$MANIFEST" .
"$TMPDIR/mfer" check --base . "$MANIFEST"
}
main "$@"
contrib/usage.sh
Executable
+19
View File
@@ -0,0 +1,19 @@
#!/bin/bash
set -euo pipefail
# usage.sh - Generate and check a manifest from the repo
# Run from repo root: ./contrib/usage.sh
TMPDIR=$(mktemp -d)
MANIFEST="$TMPDIR/index.mf"
cleanup() {
rm -rf "$TMPDIR"
}
trap cleanup EXIT
echo "Building mfer..."
go build -o "$TMPDIR/mfer" ./cmd/mfer
"$TMPDIR/mfer" generate -o "$MANIFEST" .
"$TMPDIR/mfer" check --base . "$MANIFEST"
go.mod
+33 -17
View File
@@ -1,28 +1,44 @@
module sneak.berlin/go/mfer
go 1.27.1
go 1.23
require (
github.com/apex/log v1.9.0
github.com/davecgh/go-spew v1.1.1
github.com/dustin/go-humanize v1.1.0
github.com/klauspost/compress v1.20.1
github.com/dustin/go-humanize v1.0.1
github.com/google/uuid v1.1.2
github.com/klauspost/compress v1.18.2
github.com/multiformats/go-multihash v0.2.3
github.com/spf13/afero v1.15.0
github.com/stretchr/testify v1.12.1
github.com/urfave/cli/v3 v3.14.0
golang.org/x/term v0.46.0
google.golang.org/protobuf v1.36.12
github.com/pterm/pterm v0.12.35
github.com/spf13/afero v1.8.0
github.com/stretchr/testify v1.8.1
github.com/urfave/cli/v2 v2.27.7
google.golang.org/protobuf v1.28.1
)
require (
github.com/klauspost/cpuid/v2 v2.4.0 // indirect
github.com/minio/sha256-simd v1.0.1 // indirect
github.com/mr-tron/base58 v1.3.0 // indirect
github.com/multiformats/go-varint v0.1.0 // indirect
github.com/atomicgo/cursor v0.0.1 // indirect
github.com/cpuguy83/go-md2man/v2 v2.0.7 // indirect
github.com/fatih/color v1.7.0 // indirect
github.com/gookit/color v1.4.2 // indirect
github.com/klauspost/cpuid/v2 v2.0.9 // indirect
github.com/mattn/go-colorable v0.1.2 // indirect
github.com/mattn/go-isatty v0.0.8 // indirect
github.com/mattn/go-runewidth v0.0.13 // indirect
github.com/minio/sha256-simd v1.0.0 // indirect
github.com/mr-tron/base58 v1.2.0 // indirect
github.com/multiformats/go-varint v0.0.6 // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/rivo/uniseg v0.2.0 // indirect
github.com/russross/blackfriday/v2 v2.1.0 // indirect
github.com/spaolacci/murmur3 v1.1.0 // indirect
go.yaml.in/yaml/v3 v3.0.5 // indirect
golang.org/x/crypto v0.57.0 // indirect
golang.org/x/sys v0.48.0 // indirect
golang.org/x/text v0.42.0 // indirect
lukechampine.com/blake3 v1.4.1 // indirect
github.com/xo/terminfo v0.0.0-20210125001918-ca9a967f8778 // indirect
github.com/xrash/smetrics v0.0.0-20240521201337-686a1a2994c1 // indirect
golang.org/x/crypto v0.0.0-20220525230936-793ad666bf5e // indirect
golang.org/x/sys v0.1.0 // indirect
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
golang.org/x/text v0.3.6 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
lukechampine.com/blake3 v1.1.6 // indirect
)
go.sum
+562 -34
View File
@@ -1,40 +1,568 @@
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
cloud.google.com/go v0.44.3/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc=
cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk=
cloud.google.com/go v0.57.0/go.mod h1:oXiQ6Rzq3RAkkY7N6t3TcE6jE+CIBBbA36lwQ1JyzZs=
cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOYc=
cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
cloud.google.com/go v0.72.0/go.mod h1:M+5Vjvlc2wnp6tjzE102Dw08nGShTscUx2nZMufOKPI=
cloud.google.com/go v0.74.0/go.mod h1:VV1xSbzvo+9QJOxLDaJfTjx5e+MePCpCWwvftOeQmWk=
cloud.google.com/go v0.75.0/go.mod h1:VGuuCn7PG0dwsd5XPVm2Mm3wlh3EL55/79EKB6hlPTY=
cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE=
cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc=
cloud.google.com/go/bigquery v1.5.0/go.mod h1:snEHRnqQbz117VIFhE8bmtwIDY80NLUZUMb4Nv6dBIg=
cloud.google.com/go/bigquery v1.7.0/go.mod h1://okPTzCYNXSlb24MZs83e2Do+h+VXtc4gLoIoXIAPc=
cloud.google.com/go/bigquery v1.8.0/go.mod h1:J5hqkt3O0uAFnINi6JXValWIb1v0goeZM77hZzJN/fQ=
cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk=
cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
cloud.google.com/go/pubsub v1.3.1/go.mod h1:i+ucay31+CNRpDW4Lu78I4xXG+O1r/MAHgjpRVR+TSU=
cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos=
cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk=
cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
cloud.google.com/go/storage v1.14.0/go.mod h1:GrKmX003DSIwi9o29oFT7YDnHYwZoctc3fOKtUw0Xmo=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
github.com/MarvinJWendt/testza v0.1.0/go.mod h1:7AxNvlfeHP7Z/hDQ5JtE3OKYT3XFUeLCDE2DQninSqs=
github.com/MarvinJWendt/testza v0.2.1/go.mod h1:God7bhG8n6uQxwdScay+gjm9/LnO4D3kkcZX4hv9Rp8=
github.com/MarvinJWendt/testza v0.2.8/go.mod h1:nwIcjmr0Zz+Rcwfh3/4UhBp7ePKVhuBExvZqnKYWlII=
github.com/MarvinJWendt/testza v0.2.10/go.mod h1:pd+VWsoGUiFtq+hRKSU1Bktnn+DMCSrDrXDpX2bG66k=
github.com/MarvinJWendt/testza v0.2.12 h1:/PRp/BF+27t2ZxynTiqj0nyND5PbOtfJS0SuTuxmgeg=
github.com/MarvinJWendt/testza v0.2.12/go.mod h1:JOIegYyV7rX+7VZ9r77L/eH6CfJHHzXjB69adAhzZkI=
github.com/apex/log v1.9.0 h1:FHtw/xuaM8AgmvDDTI9fiwoAL25Sq2cxojnZICUU8l0=
github.com/apex/log v1.9.0/go.mod h1:m82fZlWIuiWzWP04XCTXmnX0xRkYYbCdYn8jbJeLBEA=
github.com/apex/logs v1.0.0/go.mod h1:XzxuLZ5myVHDy9SAmYpamKKRNApGj54PfYLcFrXqDwo=
github.com/aphistic/golf v0.0.0-20180712155816-02c07f170c5a/go.mod h1:3NqKYiepwy8kCu4PNA+aP7WUV72eXWJeP9/r3/K9aLE=
github.com/aphistic/sweet v0.2.0/go.mod h1:fWDlIh/isSE9n6EPsRmC0det+whmX6dJid3stzu0Xys=
github.com/atomicgo/cursor v0.0.1 h1:xdogsqa6YYlLfM+GyClC/Lchf7aiMerFiZQn7soTOoU=
github.com/atomicgo/cursor v0.0.1/go.mod h1:cBON2QmmrysudxNBFthvMtN32r3jxVRIvzkUiF/RuIk=
github.com/aws/aws-sdk-go v1.20.6/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
github.com/aybabtme/rgbterm v0.0.0-20170906152045-cc83f3b3ce59/go.mod h1:q/89r3U2H7sSsE2t6Kca0lfwTK8JdoNGS/yzM/4iH5I=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
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golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
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google.golang.org/grpc v1.31.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
google.golang.org/grpc v1.31.1/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
google.golang.org/grpc v1.34.0/go.mod h1:WotjhfgOW/POjDeRt8vscBtXq+2VjORFy659qA51WJ8=
google.golang.org/grpc v1.35.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGjtUeSXeh4=
google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w=
google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
lukechampine.com/blake3 v1.1.6 h1:H3cROdztr7RCfoaTpGZFQsrqvweFLrqS73j7L7cmR5c=
lukechampine.com/blake3 v1.1.6/go.mod h1:tkKEOtDkNtklkXtLNEOGNq5tcV90tJiA1vAA12R78LA=
rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
internal/cli/check.go
+27 -50
View File
@@ -11,12 +11,11 @@ import (
"path/filepath"
"strconv"
"strings"
"sync"
"time"
"github.com/dustin/go-humanize"
"github.com/spf13/afero"
"github.com/urfave/cli/v3"
"github.com/urfave/cli/v2"
"sneak.berlin/go/mfer/internal/log"
"sneak.berlin/go/mfer/mfer"
)
@@ -96,10 +95,8 @@ func findManifest(fs afero.Fs, dir string) (string, error) {
// fetchManifestToTemp downloads a manifest URL to a temporary file and
// returns the temp file path. The caller is responsible for removing it.
func (mfa *CLIApp) fetchManifestToTemp(
ctx context.Context, url string,
) (string, error) {
rc, fetchErr := mfa.openManifestReader(ctx, url)
func (mfa *CLIApp) fetchManifestToTemp(url string) (string, error) {
rc, fetchErr := mfa.openManifestReader(url)
if fetchErr != nil {
return "", fetchErr
}
@@ -166,9 +163,7 @@ func verifyRequiredSigner(
}
// reportCheckProgress renders progress updates until the channel closes.
func reportCheckProgress(progress <-chan mfer.CheckStatus, wg *sync.WaitGroup) {
defer wg.Done()
func reportCheckProgress(progress <-chan mfer.CheckStatus) {
for status := range progress {
if status.ETA > 0 {
log.Progressf("Checking: %d/%d files, %s/s, ETA %s, %d failures",
@@ -208,29 +203,22 @@ func countCheckFailures(
}
// findExtraFiles reports files present on disk but absent from the
// manifest, and anything the search cannot read: each is a failure under
// --no-extra-files, otherwise a warning.
func findExtraFiles(
ctx context.Context, cmd *cli.Command, chk *mfer.Checker, failures *int64,
) error {
// manifest, counting each as a failure.
func findExtraFiles(ctx *cli.Context, chk *mfer.Checker, failures *int64) error {
extraResults := make(chan mfer.Result, 1)
extraDone := make(chan struct{})
go func() {
for result := range extraResults {
if cmd.Bool("no-extra-files") {
*failures++
*failures++
log.Infof("%s: %s (%s)", result.Status, result.Path, result.Message)
} else {
log.Warnf("%s: %s (%s)", result.Status, result.Path, result.Message)
}
log.Infof("%s: %s (%s)", result.Status, result.Path, result.Message)
}
close(extraDone)
}()
err := chk.FindExtraFiles(ctx, extraResults)
err := chk.FindExtraFiles(ctx.Context, extraResults)
if err != nil {
return fmt.Errorf("failed to check for extra files: %w", err)
}
@@ -242,24 +230,16 @@ func findExtraFiles(
// runCheck runs the manifest check with progress and result reporting
// and returns the number of failures.
func runCheck(
ctx context.Context, cmd *cli.Command, chk *mfer.Checker, showProgress bool,
) (int64, error) {
func runCheck(ctx *cli.Context, chk *mfer.Checker, showProgress bool) (int64, error) {
// Set up results channel
results := make(chan mfer.Result, 1)
// Set up progress channel
var (
progress chan mfer.CheckStatus
progressWg sync.WaitGroup
)
var progress chan mfer.CheckStatus
if showProgress {
progress = make(chan mfer.CheckStatus, 1)
progressWg.Add(1)
go reportCheckProgress(progress, &progressWg)
go reportCheckProgress(progress)
}
// Process results in a goroutine
@@ -270,10 +250,7 @@ func runCheck(
go countCheckFailures(results, &failures, done)
// Run check
err := chk.Check(ctx, results, progress)
progressWg.Wait()
err := chk.Check(ctx.Context, results, progress)
if err != nil {
return 0, fmt.Errorf("check failed: %w", err)
}
@@ -281,27 +258,28 @@ func runCheck(
// Wait for results processing to complete
<-done
err = findExtraFiles(ctx, cmd, chk, &failures)
if err != nil {
return 0, err
// Check for extra files if requested
if ctx.Bool("no-extra-files") {
err = findExtraFiles(ctx, chk, &failures)
if err != nil {
return 0, err
}
}
return failures, nil
}
func (mfa *CLIApp) checkManifestOperation(
ctx context.Context, cmd *cli.Command,
) error {
func (mfa *CLIApp) checkManifestOperation(ctx *cli.Context) error {
log.Debug("checkManifestOperation()")
manifestPath, err := mfa.resolveManifestArg(cmd)
manifestPath, err := mfa.resolveManifestArg(ctx)
if err != nil {
return fmt.Errorf("check: %w", err)
}
// URL manifests need to be downloaded to a temp file for the checker
if isHTTPURL(manifestPath) {
tmpPath, tmpErr := mfa.fetchManifestToTemp(ctx, manifestPath)
tmpPath, tmpErr := mfa.fetchManifestToTemp(manifestPath)
if tmpErr != nil {
return fmt.Errorf("check: %w", tmpErr)
}
@@ -311,13 +289,12 @@ func (mfa *CLIApp) checkManifestOperation(
manifestPath = tmpPath
}
basePath := cmd.String("base")
showProgress := cmd.Bool("progress")
basePath := ctx.String("base")
showProgress := ctx.Bool("progress")
log.Infof("checking manifest %s with base %s", manifestPath, basePath)
// Create checker
//nolint:contextcheck // mfer loads a manifest without a context
chk, err := mfer.NewChecker(&mfer.CheckerOptions{
ManifestPath: manifestPath,
BasePath: basePath,
@@ -328,9 +305,9 @@ func (mfa *CLIApp) checkManifestOperation(
}
// Check signature requirement
requiredSigner := cmd.String(flagRequireSignature)
requiredSigner := ctx.String("require-signature")
if requiredSigner != "" {
err = verifyRequiredSigner(ctx, chk, requiredSigner)
err = verifyRequiredSigner(ctx.Context, chk, requiredSigner)
if err != nil {
return err
}
@@ -339,7 +316,7 @@ func (mfa *CLIApp) checkManifestOperation(
log.Infof("manifest contains %d files, %s", chk.FileCount(),
humanize.IBytes(safeUint64(int64(chk.TotalBytes()))))
failures, err := runCheck(ctx, cmd, chk, showProgress)
failures, err := runCheck(ctx, chk, showProgress)
if err != nil {
return err
}
internal/cli/entry_test.go
+41 -357
View File
@@ -3,7 +3,6 @@ package cli
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
@@ -14,12 +13,11 @@ import (
"strings"
"sync"
"testing"
"time"
"github.com/spf13/afero"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
urfcli "github.com/urfave/cli/v3"
urfcli "github.com/urfave/cli/v2"
"sneak.berlin/go/mfer/internal/log"
"sneak.berlin/go/mfer/mfer"
)
@@ -265,9 +263,8 @@ func commandsTakingVerbose() [][]string {
}
// TestVerboseCount asserts that one -v or --verbose gives verbose output and
// two -v, or -v and --verbose, give debug output (issue #125). urfave/cli
// before v2.25.5 counted a flag given by its alias twice, so one -v gave debug
// output.
// two -v give debug output (issue #125). urfave/cli before v2.25.5 counted a
// flag given by its alias twice, so one -v gave debug output.
func TestVerboseCount(t *testing.T) {
t.Parallel()
@@ -278,7 +275,6 @@ func TestVerboseCount(t *testing.T) {
{[]string{"-v"}, log.VerboseLevel},
{[]string{testFlagVerbose}, log.VerboseLevel},
{[]string{"-v", "-v"}, log.DebugLevel},
{[]string{"-v", testFlagVerbose}, log.DebugLevel},
}
for _, command := range commandsTakingVerbose() {
@@ -316,6 +312,28 @@ func TestCombinedShortVerboseRefused(t *testing.T) {
}
}
// TestShortAndLongVerboseRefused asserts that -v and --verbose given together
// are refused (issue #125): urfave/cli v2 refuses a flag given under two of its
// names, and one flag with an alias keeps help and parsing simple.
func TestShortAndLongVerboseRefused(t *testing.T) {
t.Parallel()
for _, command := range commandsTakingVerbose() {
args := slices.Concat(command, []string{"-v", testFlagVerbose})
t.Run(strings.Join(args, " "), func(t *testing.T) {
t.Parallel()
opts := testOpts(args, afero.NewMemMapFs())
exitCode, level := runCLIWithLevel(opts)
assert.Equal(t, 1, exitCode)
assert.Contains(t, testStderr(t, opts), "Cannot use two forms of the same flag")
assert.Equal(t, log.InfoLevel, level)
})
}
}
func TestHelpCommand(t *testing.T) {
t.Parallel()
@@ -354,39 +372,6 @@ func TestGenerateCommand(t *testing.T) {
assert.True(t, exists)
}
// TestGenerateSeededManifestBytes pins the exact bytes `gen --seed` writes
// for a fixed tree, so that a Go or dependency update that changes what
// mfer writes fails here. testdata/seeded.mf was written by an mfer built
// before such an update. The tree has enough files that zstd compresses
// the manifest instead of storing it as it is.
func TestGenerateSeededManifestBytes(t *testing.T) {
t.Parallel()
fs := afero.NewMemMapFs()
start := time.Date(2025, 6, 1, 0, 0, 0, 0, time.UTC)
for i := range 200 {
path := fmt.Sprintf("/testdir/d%d/f%03d.txt", i%10, i)
mtime := start.Add(time.Duration(i) * time.Second)
require.NoError(t, fs.MkdirAll(filepath.Dir(path), 0o755))
writeTestFile(t, fs, path, fmt.Sprintf("file %d\n", i))
require.NoError(t, fs.Chtimes(path, mtime, mtime))
}
opts := testOpts([]string{
testApp, cmdGenerate, "-q", "--seed", "mfer", "-o", testOutput, testDir,
}, fs)
require.Equal(t, 0, runCLI(opts), "stderr: %s", testStderr(t, opts))
got, err := afero.ReadFile(fs, testOutput)
require.NoError(t, err)
want, err := os.ReadFile("testdata/seeded.mf")
require.NoError(t, err)
assert.Equal(t, want, got)
}
func TestGenerateAndCheckCommand(t *testing.T) {
t.Parallel()
@@ -408,166 +393,6 @@ func TestGenerateAndCheckCommand(t *testing.T) {
assert.Equal(t, 0, exitCode, "check failed: %s", testStderr(t, opts))
}
// TestGenerateRecordsModeOnlyWhenAsked runs gen with and without
// --include-permissions: without it every mode is recorded as 0000, with
// it each file's permission bits. list -l and export show the recorded
// modes.
func TestGenerateRecordsModeOnlyWhenAsked(t *testing.T) {
t.Parallel()
fs := afero.NewMemMapFs()
require.NoError(t, fs.MkdirAll(testDir, 0o755))
writeTestFile(t, fs, "/testdir/notes.txt", "hello world")
writeTestFile(t, fs, "/testdir/run.sh", "#!/bin/sh\n")
require.NoError(t, fs.Chmod("/testdir/run.sh", 0o755))
for _, tc := range []struct {
flags []string
want map[string]string // recorded mode by path
}{
{nil, map[string]string{"notes.txt": "0000", "run.sh": "0000"}},
{
[]string{"--" + flagIncludePermissions},
map[string]string{"notes.txt": "0644", "run.sh": "0755"},
},
} {
opts := testOpts(slices.Concat(
[]string{testApp, cmdGenerate, "-q", "-f", "-o", testOutput}, tc.flags,
[]string{testDir},
), fs)
require.Equal(t, 0, runCLI(opts), "stderr: %s", testStderr(t, opts))
opts = testOpts([]string{testApp, cmdList, "-l", testOutput}, fs)
require.Equal(t, 0, runCLI(opts), "stderr: %s", testStderr(t, opts))
listed := map[string]string{}
out := strings.TrimSuffix(testStdout(t, opts), "\n")
for _, line := range strings.Split(out, "\n") {
fields := strings.Split(line, "\t") // mode, size, mtime, path
require.Len(t, fields, 4, line)
listed[fields[3]] = fields[0]
}
assert.Equal(t, tc.want, listed, "list -l %v", tc.flags)
opts = testOpts([]string{testApp, cmdExport, testOutput}, fs)
require.Equal(t, 0, runCLI(opts), "stderr: %s", testStderr(t, opts))
var entries []ExportEntry
require.NoError(t, json.Unmarshal([]byte(testStdout(t, opts)), &entries))
exported := map[string]string{}
for _, e := range entries {
exported[e.Path] = e.Mode
}
assert.Equal(t, tc.want, exported, "export %v", tc.flags)
}
}
// TestCheckComparesRecordedMode changes a file's mode after gen: check
// must fail on it when gen recorded the file's mode, and pass when gen
// recorded 0000.
func TestCheckComparesRecordedMode(t *testing.T) {
t.Parallel()
for _, tc := range []struct {
flags []string
exitCode int
}{
{nil, 0},
{[]string{"--" + flagIncludePermissions}, 1},
} {
fs := afero.NewMemMapFs()
require.NoError(t, fs.MkdirAll(testDir, 0o755))
writeTestFile(t, fs, testFile1, "hello world")
opts := testOpts(slices.Concat(
[]string{testApp, cmdGenerate, "-q", "-o", testMF}, tc.flags,
[]string{testDir},
), fs)
require.Equal(t, 0, runCLI(opts), "stderr: %s", testStderr(t, opts))
require.NoError(t, fs.Chmod(testFile1, 0o600))
opts = testOpts([]string{testApp, cmdCheck, testFlagBase, testDir, testMF}, fs)
assert.Equal(t, tc.exitCode, runCLI(opts), "%v: %s", tc.flags, testStderr(t, opts))
if tc.exitCode != 0 {
assert.Contains(t, testStderr(t, opts), "MODE_MISMATCH: file1.txt")
}
}
}
// sharedWriter appends to a buffer shared with other sharedWriters, so
// output written to stdout and stderr is kept in the order it was written.
// Each write first waits for delay.
type sharedWriter struct {
mu *sync.Mutex
buf *bytes.Buffer
delay time.Duration
}
func (w sharedWriter) Write(p []byte) (int, error) {
time.Sleep(w.delay)
w.mu.Lock()
defer w.mu.Unlock()
return w.buf.Write(p)
}
// TestCheckClearsProgressBeforeSummary asserts that check --progress writes
// its last progress line and clears it before it logs the summary. Progress
// writes are slowed down, so a progress goroutine that check did not wait for
// would write after the summary, or after the run has returned.
//
// Progress lines and log lines take the logger's lock, and when the progress
// goroutine gets it first the clear lands before the summary even without the
// wait. Which goroutine gets it first changes from run to run, so check runs
// ten times.
func TestCheckClearsProgressBeforeSummary(t *testing.T) {
t.Parallel()
fs := afero.NewMemMapFs()
require.NoError(t, fs.MkdirAll(testDir, 0o755))
writeTestFile(t, fs, testFile1, "hello world")
opts := testOpts([]string{testApp, cmdGenerate, "-q", "-o", testMF, testDir}, fs)
require.Equal(t, 0, runCLI(opts), "generate failed: %s", testStderr(t, opts))
for range 10 {
var (
mu sync.Mutex
output bytes.Buffer
)
opts = testOpts([]string{
testApp, cmdCheck, "--progress", testFlagBase, testDir, testMF,
}, fs)
opts.Stdout = sharedWriter{mu: &mu, buf: &output, delay: 100 * time.Millisecond}
opts.Stderr = sharedWriter{mu: &mu, buf: &output}
require.Equal(t, 0, runCLI(opts))
mu.Lock()
got := output.String()
mu.Unlock()
lastProgress := strings.Index(got, "Checking: 1/1 files")
progressDone := strings.Index(got, "\r\033[K")
summary := strings.Index(got, "checked 1 files")
require.NotEqual(t, -1, lastProgress, "no last progress line in %q", got)
require.NotEqual(t, -1, progressDone, "progress line never cleared in %q", got)
require.NotEqual(t, -1, summary, "no summary in %q", got)
require.Less(t, lastProgress, progressDone,
"progress cleared before its last line in %q", got)
require.Less(t, progressDone, summary,
"summary logged before progress was cleared in %q", got)
}
}
func TestCheckCommandWithMissingFile(t *testing.T) {
t.Parallel()
@@ -811,155 +636,30 @@ func TestNoExtraFilesWithSubdirectory(t *testing.T) {
"check should fail when extra files exist in subdirectory")
}
// TestCheckWarnsAboutUnlistedFiles adds one file the manifest does not list
// to a tree that had none: it gets one warning and the check passes, unless
// --no-extra-files makes it a failure. --quiet hides the warning, not the
// failure.
func TestCheckWarnsAboutUnlistedFiles(t *testing.T) {
func TestCheckWithoutNoExtraFilesIgnoresExtra(t *testing.T) {
t.Parallel()
for name, unlisted := range map[string]string{
"regular file": "extra.txt",
"dotfile": ".hidden",
"file in hidden directory": ".git/config",
} {
t.Run(name, func(t *testing.T) {
t.Parallel()
fs := afero.NewMemMapFs()
fs := afero.NewMemMapFs()
require.NoError(t, fs.MkdirAll(testDir, 0o755))
writeTestFile(t, fs, testFile1, "hello")
// Create test file
require.NoError(t, fs.MkdirAll(testDir, 0o755))
writeTestFile(t, fs, testFile1, "hello")
opts := testOpts([]string{
testApp, cmdGenerate, "-q", "-o", testManifest, testDir,
}, fs)
require.Equal(t, 0, runCLI(opts), "stderr: %s", testStderr(t, opts))
// Generate manifest
opts := testOpts([]string{testApp, cmdGenerate, "-q", "-o", testManifest, testDir}, fs)
exitCode := runCLI(opts)
require.Equal(t, 0, exitCode)
check := func(flags ...string) (int, string) {
args := append([]string{testApp, cmdCheck, testFlagBase, testDir}, flags...)
opts := testOpts(append(args, testManifest), fs)
return runCLI(opts), testStderr(t, opts)
}
exitCode, stderr := check()
assert.Equal(t, 0, exitCode, "stderr: %s", stderr)
assert.NotContains(t, stderr, "not in manifest")
writeTestFile(t, fs, filepath.Join(testDir, unlisted), "unlisted")
exitCode, stderr = check()
assert.Equal(t, 0, exitCode, "stderr: %s", stderr)
assert.Equal(t, 1, strings.Count(stderr, "not in manifest"), stderr)
assert.Contains(t, stderr, unlisted)
exitCode, stderr = check("-q")
assert.Equal(t, 0, exitCode, "stderr: %s", stderr)
assert.NotContains(t, stderr, "not in manifest")
exitCode, stderr = check(testFlagNoExtra)
assert.Equal(t, 1, exitCode, "stderr: %s", stderr)
assert.Contains(t, stderr, unlisted)
exitCode, _ = check("-q", testFlagNoExtra)
assert.Equal(t, 1, exitCode)
})
}
}
// TestCheckNeverReportsManifest keeps the manifest inside the checked tree,
// under several names and path spellings, and names the tree both directly
// and through a symlink: the manifest is never reported, even under
// --no-extra-files. The manifest is recognized by file identity, which needs
// the real filesystem.
func TestCheckNeverReportsManifest(t *testing.T) {
t.Parallel()
// Manifest paths are relative to the checked tree.
for name, manifest := range map[string]string{
"default name": defaultManifestName,
"hidden name": ".index.mf",
"other name in a subdirectory": "sub/listing.mf",
"path spelled through ..": "sub/../index.mf",
} {
t.Run(name, func(t *testing.T) {
t.Parallel()
// A temp dir holding data/tree and link, a symlink to data.
root := t.TempDir()
tree := filepath.Join(root, "data", "tree")
// Not filepath.Join, which would clean away a "..".
manifestPath := tree + "/" + manifest
fs := afero.NewOsFs()
require.NoError(t, fs.MkdirAll(filepath.Join(tree, "sub"), 0o750))
require.NoError(t,
os.Symlink(filepath.Join(root, "data"), filepath.Join(root, "link")))
writeTestFile(t, fs, filepath.Join(tree, testFileTxt), "hello")
opts := testOpts([]string{
testApp, cmdGenerate, "-q", "-o", manifestPath, tree,
}, fs)
require.Equal(t, 0, runCLI(opts), "stderr: %s", testStderr(t, opts))
for _, base := range []string{tree, filepath.Join(root, "link", "tree")} {
opts = testOpts([]string{
testApp, cmdCheck, testFlagNoExtra, testFlagBase, base, manifestPath,
}, fs)
assert.Equal(t, 0, runCLI(opts),
"base %s, stderr: %s", base, testStderr(t, opts))
assert.NotContains(t, testStderr(t, opts), "not in manifest")
}
})
}
}
// unlistableDirFs is a filesystem on which one directory cannot be listed.
type unlistableDirFs struct {
afero.Fs
dir string
}
//nolint:ireturn // Open must return afero.File to satisfy afero.Fs.
func (f unlistableDirFs) Open(name string) (afero.File, error) {
if name == f.dir {
return nil, os.ErrPermission
}
return f.Fs.Open(name)
}
// TestCheckWithUnlistableDirectory has a directory under the base that
// cannot be listed, followed by an unlisted file: both are warned about and
// the check still passes, unless --no-extra-files is given.
func TestCheckWithUnlistableDirectory(t *testing.T) {
t.Parallel()
mem := afero.NewMemMapFs()
require.NoError(t, mem.MkdirAll("/testdir/locked", 0o755))
writeTestFile(t, mem, testFile1, "hello")
opts := testOpts([]string{
testApp, cmdGenerate, "-q", "-o", testManifest, testDir,
}, mem)
require.Equal(t, 0, runCLI(opts), "stderr: %s", testStderr(t, opts))
// Directories are searched in name order, so this comes after "locked".
writeTestFile(t, mem, "/testdir/unlisted.txt", "unlisted")
fs := unlistableDirFs{Fs: mem, dir: "/testdir/locked"}
opts = testOpts([]string{testApp, cmdCheck, testFlagBase, testDir, testManifest}, fs)
assert.Equal(t, 0, runCLI(opts), "stderr: %s", testStderr(t, opts))
assert.Contains(t, testStderr(t, opts), os.ErrPermission.Error())
assert.Contains(t, testStderr(t, opts), "unlisted.txt")
// Add extra file
writeTestFile(t, fs, "/testdir/extra.txt", "extra")
// Check WITHOUT --no-extra-files (should pass - extra files ignored)
opts = testOpts([]string{
testApp, cmdCheck, testFlagNoExtra, testFlagBase, testDir, testManifest,
testApp, cmdCheck, "-q", testFlagBase, testDir, testManifest,
}, fs)
assert.Equal(t, 1, runCLI(opts), "stderr: %s", testStderr(t, opts))
assert.Contains(t, testStderr(t, opts), "unlisted.txt")
exitCode = runCLI(opts)
assert.Equal(t, 0, exitCode,
"check without --no-extra-files should ignore extra files")
}
func TestGenerateAtomicWriteNoTempFileOnSuccess(t *testing.T) {
@@ -1296,22 +996,6 @@ func TestGenerateValidatesInputPaths(t *testing.T) {
})
}
// TestFlagAfterArgumentIsArgument asserts that flags are read only before a
// command's first argument: after it, -v is a path, not the verbose flag.
func TestFlagAfterArgumentIsArgument(t *testing.T) {
t.Parallel()
fs := afero.NewMemMapFs()
require.NoError(t, fs.MkdirAll(testDir, 0o755))
writeTestFile(t, fs, testFile1, "content")
opts := testOpts([]string{testApp, cmdGenerate, testDir, "-v"}, fs)
exitCode := runCLI(opts)
assert.Equal(t, 1, exitCode)
assert.Contains(t, testStderr(t, opts), "path does not exist: -v")
}
func TestCheckDetectsManifestCorruption(t *testing.T) {
t.Parallel()
internal/cli/errmsg_test.go
+43 -55
View File
@@ -4,6 +4,7 @@ package cli
import (
"bytes"
"context"
"flag"
"net/http"
"net/http/httptest"
"os"
@@ -14,7 +15,7 @@ import (
"github.com/spf13/afero"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
urfcli "github.com/urfave/cli/v3"
urfcli "github.com/urfave/cli/v2"
"sneak.berlin/go/mfer/mfer"
)
@@ -110,10 +111,9 @@ func TestVerifyRequiredSignerMessages(t *testing.T) {
// string; the required signer is a fixed value that cannot match it. Requires
// gpg and is skipped where it is absent, as the other signing tests are.
//
//nolint:paralleltest // signedManifest calls t.Setenv, which bars t.Parallel
//nolint:paralleltest // signedChecker calls t.Setenv, which bars t.Parallel
func TestSignerMismatchMessage(t *testing.T) {
chk := signedChecker(t,
signedManifest(t, map[string][]byte{"f.txt": []byte("signed file")}))
chk := signedChecker(t)
embeddedFP, err := chk.ExtractEmbeddedSigningKeyFP(context.Background())
require.NoError(t, err)
@@ -125,10 +125,9 @@ func TestSignerMismatchMessage(t *testing.T) {
" does not match required "+msgFpB)
}
// signedManifest returns a manifest of files signed by a throwaway GPG key
// generated in a temporary GNUPGHOME, which it leaves set for the rest of
// the test.
func signedManifest(t *testing.T, files map[string][]byte) []byte {
// signedChecker builds a Checker over a manifest signed by a throwaway GPG
// key generated in a temporary GNUPGHOME.
func signedChecker(t *testing.T) *mfer.Checker {
t.Helper()
_, err := exec.LookPath("gpg")
@@ -160,25 +159,17 @@ func signedManifest(t *testing.T, files map[string][]byte) []byte {
b := mfer.NewBuilder()
b.SetSigningOptions(&mfer.SigningOptions{KeyID: mfer.GPGKeyID("test@mfer.test")})
for path, content := range files {
_, err = b.AddFile(mfer.RelFilePath(path), mfer.FileSize(len(content)),
mfer.ModTime{}, 0, bytes.NewReader(content), nil)
require.NoError(t, err)
}
content := []byte("signed file")
_, err = b.AddFile("f.txt", mfer.FileSize(len(content)), mfer.ModTime{},
bytes.NewReader(content), nil)
require.NoError(t, err)
var buf bytes.Buffer
require.NoError(t, b.Build(context.Background(), &buf))
return buf.Bytes()
}
// signedChecker builds a Checker over manifest, a signed manifest.
func signedChecker(t *testing.T, manifest []byte) *mfer.Checker {
t.Helper()
fs := afero.NewMemMapFs()
require.NoError(t, afero.WriteFile(fs, "/index.mf", manifest, 0o644))
require.NoError(t, afero.WriteFile(fs, "/index.mf", buf.Bytes(), 0o644))
chk, err := mfer.NewChecker(&mfer.CheckerOptions{
ManifestPath: "/index.mf",
@@ -194,17 +185,13 @@ func signedChecker(t *testing.T, manifest []byte) *mfer.Checker {
func TestPathDoesNotExistMessage(t *testing.T) {
t.Parallel()
set := flag.NewFlagSet("gen", flag.ContinueOnError)
require.NoError(t, set.Parse([]string{"nope"}))
mfa := &CLIApp{Fs: afero.NewMemMapFs()}
cmd := &urfcli.Command{
Name: cmdGenerate,
Action: func(_ context.Context, c *urfcli.Command) error {
_, err := mfa.collectInputPaths(c.Args())
ctx := urfcli.NewContext(nil, set, nil)
return err
},
}
err := cmd.Run(context.Background(), []string{cmdGenerate, "nope"})
_, err := mfa.collectInputPaths(ctx.Args())
require.ErrorIs(t, err, errPathNotExist)
assert.EqualError(t, err, "path does not exist: nope")
}
@@ -217,22 +204,18 @@ func TestOutputFileExistsMessage(t *testing.T) {
require.NoError(t, afero.WriteFile(fs, "/d/f.txt", []byte("hi"), 0o644))
require.NoError(t, afero.WriteFile(fs, "/out.mf", []byte("old"), 0o644))
set := flag.NewFlagSet("gen", flag.ContinueOnError)
set.String("output", "", "")
set.Bool("force", false, "")
require.NoError(t, set.Parse([]string{"/d"}))
require.NoError(t, set.Set("output", "/out.mf"))
mfa := &CLIApp{Fs: fs}
cmd := &urfcli.Command{
Name: cmdGenerate,
Flags: []urfcli.Flag{
&urfcli.StringFlag{Name: "output"},
&urfcli.BoolFlag{Name: "force"},
},
Action: mfa.generateManifestOperation,
}
ctx := urfcli.NewContext(nil, set, nil)
// generateManifestOperation writes to the process-global logger during
// enumeration, so serialize with the other CLI runs.
err := runLocked(func() error {
return cmd.Run(context.Background(),
[]string{cmdGenerate, "--output", "/out.mf", "/d"})
})
err := runLocked(func() error { return mfa.generateManifestOperation(ctx) })
require.ErrorIs(t, err, errOutputExists)
assert.EqualError(t, err,
"output file /out.mf already exists (use --force to overwrite)")
@@ -257,7 +240,7 @@ func TestUnknownCommandMessage(t *testing.T) {
err := runLocked(func() error {
mfa.run([]string{testApp})
return mfa.app.Run(context.Background(), []string{testApp, "bogus"})
return mfa.app.Run([]string{testApp, "bogus"})
})
require.ErrorIs(t, err, errUnknownCommand)
assert.EqualError(t, err, `unknown command "bogus"`)
@@ -274,7 +257,7 @@ func TestManifestLoaderHTTPStatusMessage(t *testing.T) {
mfa := &CLIApp{Fs: afero.NewMemMapFs()}
_, err := mfa.openManifestReader(context.Background(), server.URL+"/foo.mf")
_, err := mfa.openManifestReader(server.URL + "/foo.mf")
require.ErrorIs(t, err, errHTTPStatus)
assert.EqualError(t, err,
"failed to fetch "+server.URL+"/foo.mf: HTTP 404")
@@ -291,13 +274,17 @@ func TestFetchManifestHTTPStatusMessage(t *testing.T) {
mfa := &CLIApp{Fs: afero.NewMemMapFs()}
cmd := mfa.fetchCommand()
cmd.Action = mfa.fetchManifestOperation
set := flag.NewFlagSet(cmdFetch, flag.ContinueOnError)
for _, f := range mfa.fetchCommand().Flags {
require.NoError(t, f.Apply(set))
}
require.NoError(t, set.Parse([]string{server.URL}))
ctx := urfcli.NewContext(nil, set, nil)
// fetchManifestOperation logs to the process-global logger.
err := runLocked(func() error {
return cmd.Run(context.Background(), []string{cmdFetch, server.URL})
})
err := runLocked(func() error { return mfa.fetchManifestOperation(ctx) })
require.ErrorIs(t, err, errHTTPStatus)
assert.EqualError(t, err, "failed to fetch manifest: HTTP 404")
}
@@ -313,7 +300,7 @@ func TestFetchFileHTTPStatusMessage(t *testing.T) {
// downloadFile logs each retry of the 500 to the process-global logger.
err := runLocked(func() error {
return downloadFile(context.Background(), testClient(), server.URL+"/x", ".", "x",
return downloadFile(context.Background(), testClient(), server.URL+"/x", "x",
&mfer.MFFilePath{}, nil)
})
require.ErrorIs(t, err, errHTTPStatus)
@@ -323,13 +310,14 @@ func TestFetchFileHTTPStatusMessage(t *testing.T) {
func TestURLRequiredMessage(t *testing.T) {
t.Parallel()
set := flag.NewFlagSet("fetch", flag.ContinueOnError)
require.NoError(t, set.Parse([]string{}))
mfa := &CLIApp{Fs: afero.NewMemMapFs()}
cmd := &urfcli.Command{Name: cmdFetch, Action: mfa.fetchManifestOperation}
ctx := urfcli.NewContext(nil, set, nil)
// fetchManifestOperation logs to the process-global logger.
err := runLocked(func() error {
return cmd.Run(context.Background(), []string{cmdFetch})
})
err := runLocked(func() error { return mfa.fetchManifestOperation(ctx) })
require.ErrorIs(t, err, errURLRequired)
assert.EqualError(t, err, "URL argument required")
}
@@ -367,7 +355,7 @@ func TestSizeMismatchMessage(t *testing.T) {
// finishDownload returns the size-mismatch error before it touches the
// paths, digest, or entry, so those can be zero here.
err := finishDownload("", "", "", 9, 10, nil, nil, nil, nil)
err := finishDownload("", "", 9, 10, nil, nil, nil, nil)
require.ErrorIs(t, err, errSizeMismatch)
assert.EqualError(t, err, "size mismatch: expected 10 bytes, got 9")
}
internal/cli/export.go
+4 -10
View File
@@ -1,13 +1,12 @@
package cli
import (
"context"
"encoding/hex"
"encoding/json"
"fmt"
"time"
"github.com/urfave/cli/v3"
"github.com/urfave/cli/v2"
"sneak.berlin/go/mfer/mfer"
)
@@ -18,25 +17,21 @@ type ExportEntry struct {
Hashes []string `json:"hashes"`
Mtime *string `json:"mtime,omitempty"`
Ctime *string `json:"ctime,omitempty"`
Mode string `json:"mode"` // octal, "0000" when none was recorded
}
func (mfa *CLIApp) exportManifestOperation(
ctx context.Context, cmd *cli.Command,
) error {
pathOrURL, err := mfa.resolveManifestArg(cmd)
func (mfa *CLIApp) exportManifestOperation(ctx *cli.Context) error {
pathOrURL, err := mfa.resolveManifestArg(ctx)
if err != nil {
return fmt.Errorf("export: %w", err)
}
rc, err := mfa.openManifestReader(ctx, pathOrURL)
rc, err := mfa.openManifestReader(pathOrURL)
if err != nil {
return fmt.Errorf("export: %w", err)
}
defer func() { _ = rc.Close() }()
//nolint:contextcheck // mfer loads a manifest without a context
manifest, err := mfer.NewManifestFromReader(rc)
if err != nil {
return fmt.Errorf("export: failed to parse manifest: %w", err)
@@ -50,7 +45,6 @@ func (mfa *CLIApp) exportManifestOperation(
Path: f.GetPath(),
Size: f.GetSize(),
Hashes: make([]string, 0, len(f.GetHashes())),
Mode: fmt.Sprintf("%04o", f.GetMode()),
}
for _, h := range f.GetHashes() {
internal/cli/export_test.go
+1 -1
View File
@@ -132,7 +132,7 @@ func TestListFromHTTPURL(t *testing.T) {
exitCode := runCLI(&RunOptions{
Appname: testApp,
Args: []string{testApp, cmdList, server.URL + "/index.mf"},
Args: []string{testApp, "list", server.URL + "/index.mf"},
Stdin: &bytes.Buffer{},
Stdout: &stdout,
Stderr: &stderr,
internal/cli/fetch.go
+95 -355
View File
@@ -19,8 +19,7 @@ import (
"github.com/dustin/go-humanize"
"github.com/multiformats/go-multihash"
"github.com/spf13/afero"
"github.com/urfave/cli/v3"
"github.com/urfave/cli/v2"
"sneak.berlin/go/mfer/internal/log"
"sneak.berlin/go/mfer/mfer"
)
@@ -91,13 +90,6 @@ var (
// errHashMismatch indicates a downloaded file whose hash matches no
// manifest hash.
errHashMismatch = errors.New("hash mismatch")
// errNameClash indicates a manifest that lists a file where fetch
// writes another file.
errNameClash = errors.New(
"manifest lists a file where fetch writes another file")
// errModeOutOfRange indicates a manifest that lists a mode with more
// than the permission bits, such as setuid.
errModeOutOfRange = errors.New("manifest lists a mode outside 0777")
)
// DownloadProgress reports the progress of a single file download.
@@ -247,34 +239,20 @@ func manifestBaseURL(manifestURL string) (*url.URL, error) {
return parsed.JoinPath(".."), nil
}
// downloadManifestFiles downloads every file in the manifest into dest,
// reporting progress on the progress channel. A file already present in
// dest is skipped. It returns how many files it downloaded and their
// total size.
// downloadManifestFiles downloads every file in the manifest, reporting
// progress on the progress channel.
func downloadManifestFiles(
ctx context.Context,
client retryingClient,
baseURL *url.URL,
dest string,
files []*mfer.MFFilePath,
progress chan<- DownloadProgress,
) (int, int64, error) {
var (
downloaded int
downloadedBytes int64
)
) error {
for _, f := range files {
// Sanitize the path to prevent path traversal attacks
localPath, err := sanitizePath(f.GetPath())
if err != nil {
return 0, 0, fmt.Errorf("invalid path in manifest: %w", err)
}
if alreadyPresent(dest, localPath, f) {
log.Infof("skipping %s: already present", f.GetPath())
continue
return fmt.Errorf("invalid path in manifest: %w", err)
}
// JoinPath takes escaped path text, so a name such as "100%.txt"
@@ -282,76 +260,28 @@ func downloadManifestFiles(
fileURL := baseURL.JoinPath(encodeFilePath(f.GetPath())).String()
log.Infof("fetching %s", f.GetPath())
err = downloadFile(ctx, client, fileURL, dest, localPath, f, progress)
err = downloadFile(ctx, client, fileURL, localPath, f, progress)
if err != nil {
return 0, 0, fmt.Errorf("failed to download %s: %w", f.GetPath(), err)
return fmt.Errorf("failed to download %s: %w", f.GetPath(), err)
}
downloaded++
downloadedBytes += f.GetSize()
}
return downloaded, downloadedBytes, nil
return nil
}
// alreadyPresent reports whether localPath under dest is a regular file
// with the size, the recorded mode if any, and one of the hashes the
// manifest lists for entry. It hashes the whole file, since a matching
// size alone would accept a corrupted or partly written one. A file it
// cannot read, or reaches only through a symlink, is not present: fetch
// downloads it, and the download reports the problem.
func alreadyPresent(dest, localPath string, entry *mfer.MFFilePath) bool {
if checkNoSymlinks(dest, localPath) != nil {
return false
}
path := filepath.Join(dest, localPath)
info, err := os.Lstat(path)
if err != nil || !info.Mode().IsRegular() || info.Size() != entry.GetSize() {
return false
}
// A recorded mode of 0 means none was recorded.
if entry.GetMode() != 0 &&
info.Mode().Perm() != os.FileMode(entry.GetMode()).Perm() {
return false
}
// G304: localPath is a relative path that sanitizePath keeps inside
// dest as text, and checkNoSymlinks just found no symlink in it.
f, err := os.Open(path) //nolint:gosec // G304: see comment above
if err != nil {
return false
}
defer func() { _ = f.Close() }()
h := sha256.New()
_, err = io.Copy(h, f)
if err != nil {
return false
}
return verifyDownloadedHash(h.Sum(nil), entry) == nil
}
func (mfa *CLIApp) fetchManifestOperation(
ctx context.Context, cmd *cli.Command,
) error {
func (mfa *CLIApp) fetchManifestOperation(ctx *cli.Context) error {
log.Debug("fetchManifestOperation()")
if cmd.Args().Len() == 0 {
if ctx.Args().Len() == 0 {
return errURLRequired
}
timeout := cmd.Duration(flagTimeout)
timeout := ctx.Duration(flagTimeout)
if timeout <= 0 {
return errInvalidTimeout
}
manifestURL, err := resolveManifestURL(cmd.Args().Get(0))
manifestURL, err := resolveManifestURL(ctx.Args().Get(0))
if err != nil {
return fmt.Errorf("invalid URL: %w", err)
}
@@ -361,22 +291,43 @@ func (mfa *CLIApp) fetchManifestOperation(
firstDelay: firstRetryDelay,
}
manifestData, files, err := fetchManifest(ctx, cmd, client, manifestURL)
log.Infof("fetching manifest from %s", manifestURL)
// Read the whole manifest before parsing it, so that a connection
// lost partway through is retried rather than reported as a bad
// manifest.
var manifestData []byte
err = client.get(ctx.Context, manifestURL, func(resp *http.Response) error {
var readErr error
manifestData, readErr = io.ReadAll(resp.Body)
return readErr
})
if err != nil {
return err
return fmt.Errorf("failed to fetch manifest: %w", err)
}
// Parse manifest
manifest, err := mfer.NewManifestFromReader(bytes.NewReader(manifestData))
if err != nil {
return fmt.Errorf("failed to parse manifest: %w", err)
}
files := manifest.Files()
log.Infof("manifest contains %d files", len(files))
// Compute base URL (directory containing manifest)
baseURL, err := manifestBaseURL(manifestURL)
if err != nil {
return err
}
dest := cmd.String(flagDest)
err = os.MkdirAll(dest, dirPerms)
if err != nil {
return fmt.Errorf("failed to create destination directory %s: %w", dest, err)
// Calculate total bytes to download
var totalBytes int64
for _, f := range files {
totalBytes += f.GetSize()
}
// Create progress channel and start progress reporter goroutine
@@ -389,8 +340,7 @@ func (mfa *CLIApp) fetchManifestOperation(
startTime := time.Now()
// Download each file
downloaded, downloadedBytes, dlErr := downloadManifestFiles(
ctx, client, baseURL, dest, files, progress)
dlErr := downloadManifestFiles(ctx.Context, client, baseURL, files, progress)
close(progress)
<-done
@@ -399,193 +349,15 @@ func (mfa *CLIApp) fetchManifestOperation(
return dlErr
}
// Saved only now that every file is in place and verified, so that
// "mfer check" can verify the tree later.
err = saveManifest(dest, manifestData)
if err != nil {
return fmt.Errorf("failed to save manifest: %w", err)
}
// Print summary
elapsed := time.Since(startTime)
avgBytesPerSec := float64(downloadedBytes) / elapsed.Seconds()
avgBytesPerSec := float64(totalBytes) / elapsed.Seconds()
avgRate := formatBitrate(avgBytesPerSec * bitsPerByte)
log.Infof("downloaded %d files (%s) in %.1fs (%s avg), skipped %d already present",
downloaded,
humanize.IBytes(safeUint64(downloadedBytes)),
log.Infof("downloaded %d files (%s) in %.1fs (%s avg)",
len(files),
humanize.IBytes(safeUint64(totalBytes)),
elapsed.Seconds(),
avgRate,
len(files)-downloaded)
log.Infof("saved manifest to %s", filepath.Join(dest, defaultManifestName))
return nil
}
// fetchManifest downloads the manifest at manifestURL and parses it,
// enforcing --require-signature if it is given and refusing a manifest
// that lists a file where fetch writes another or a mode outside 0777. It
// returns the manifest as downloaded, to be saved once the files are in
// place, and the files it lists.
func fetchManifest(
ctx context.Context, cmd *cli.Command, client retryingClient, manifestURL string,
) ([]byte, []*mfer.MFFilePath, error) {
log.Infof("fetching manifest from %s", manifestURL)
// Read the whole manifest before parsing it, so that a connection
// lost partway through is retried rather than reported as a bad
// manifest.
var manifestData []byte
err := client.get(ctx, manifestURL, func(resp *http.Response) error {
var readErr error
manifestData, readErr = io.ReadAll(resp.Body)
return readErr
})
if err != nil {
return nil, nil, fmt.Errorf("failed to fetch manifest: %w", err)
}
// Parse manifest
//nolint:contextcheck // mfer loads a manifest without a context
manifest, err := mfer.NewManifestFromReader(bytes.NewReader(manifestData))
if err != nil {
return nil, nil, fmt.Errorf("failed to parse manifest: %w", err)
}
requiredSigner := cmd.String(flagRequireSignature)
if requiredSigner != "" {
err = verifyFetchedSigner(ctx, manifestData, requiredSigner)
if err != nil {
return nil, nil, err
}
}
files := manifest.Files()
err = checkNoNameClash(files)
if err != nil {
return nil, nil, err
}
// fetch sets each recorded mode on the file it writes, so a mode above
// 0777, which could carry setuid, setgid or sticky bits, is refused
// before any file is requested.
for _, f := range files {
if f.GetMode() > uint32(os.ModePerm) {
return nil, nil, fmt.Errorf("%w: %s (%#o)",
errModeOutOfRange, f.GetPath(), f.GetMode())
}
}
log.Infof("manifest contains %d files", len(files))
return manifestData, files, nil
}
// checkNoNameClash returns an error if files lists a file, or a directory
// a file is in, under a name where fetch writes another file: another
// listed file, a directory another listed file is in, the temp file it
// downloads a listed file to, or, at the top of the tree, the saved
// manifest or its temp file. fetch would remove or replace what is
// listed there, or fail partway, leaving a tree check rejects. Names are
// compared ignoring case, on every filesystem, since on a
// case-insensitive one A.txt and a.txt are one file.
func checkNoNameClash(files []*mfer.MFFilePath) error {
sep := string(filepath.Separator)
// written maps each name fetch writes, in lower case, to the file or
// directory it writes there.
written := map[string]string{
defaultManifestName: "the saved manifest",
tempPathFor(defaultManifestName): "the saved manifest's temp file",
}
for _, f := range files {
tmpPath := tempPathFor(filepath.Clean(f.GetPath()))
written[strings.ToLower(tmpPath)] = "the temp file for " + f.GetPath()
}
for _, f := range files {
// Look up and add each directory on the file's path, then the
// file itself. Only the same directory, spelled alike, may
// already be there.
parts := strings.Split(filepath.Clean(f.GetPath()), sep)
last := len(parts) - 1
for i := range parts {
name := strings.Join(parts[:i+1], sep)
what := "the directory " + name
if i == last {
what = "the file " + f.GetPath()
}
other, ok := written[strings.ToLower(name)]
if ok && (i == last || other != what) {
return fmt.Errorf("%w: %s (%s)", errNameClash, f.GetPath(), other)
}
written[strings.ToLower(name)] = what
}
}
return nil
}
// verifyFetchedSigner enforces --require-signature on the fetched manifest
// exactly as check does. verifyRequiredSigner takes a Checker, which loads
// its manifest from a file, so the manifest is handed to it as a file in
// memory.
func verifyFetchedSigner(
ctx context.Context, manifestData []byte, requiredSigner string,
) error {
memFs := afero.NewMemMapFs()
manifestPath := "/" + defaultManifestName
err := afero.WriteFile(memFs, manifestPath, manifestData, filePerms)
if err != nil {
return err
}
//nolint:contextcheck // mfer loads a manifest without a context
chk, err := mfer.NewChecker(&mfer.CheckerOptions{
ManifestPath: manifestPath,
BasePath: "/",
Fs: memFs,
})
if err != nil {
return fmt.Errorf("failed to load manifest: %w", err)
}
return verifyRequiredSigner(ctx, chk, requiredSigner)
}
// saveManifest writes the fetched manifest into dest under the default
// manifest name, the way fetch writes every file: to a new temp file that
// is then renamed into place.
func saveManifest(dest string, manifestData []byte) error {
tmpPath := tempPathFor(defaultManifestName)
out, err := createTempFile(dest, tmpPath)
if err != nil {
return err
}
_, writeErr := out.Write(manifestData)
closeErr := out.Close()
err = errors.Join(writeErr, closeErr)
if err == nil {
err = moveIntoPlace(dest, tmpPath, defaultManifestName)
}
if err != nil {
_ = os.Remove(filepath.Join(dest, tmpPath))
return err
}
avgRate)
return nil
}
@@ -629,15 +401,14 @@ func sanitizePath(p string) (string, error) {
return cleaned, nil
}
// checkNoSymlinks returns an error if any part of p, a path relative to
// dest, already exists under dest as a symlink. dest itself is the user's
// choice and may be one. sanitizePath checks p only as text, so without
// this a symlink inside dest could send a write to p outside of it. Parts
// that do not exist yet are fine: fetch creates them as plain directories
// and files. Call it immediately before each write: a symlink created
// after it returns is not caught.
func checkNoSymlinks(dest, p string) error {
current := dest
// checkNoSymlinks returns an error if any part of the relative path p
// already exists as a symlink. sanitizePath checks p only as text, so
// without this a symlink inside the target directory could send a write
// to p outside of it. Parts that do not exist yet are fine: fetch creates
// them as plain directories and files. Call it immediately before each
// write: a symlink created after it returns is not caught.
func checkNoSymlinks(p string) error {
current := ""
for _, part := range strings.Split(p, string(filepath.Separator)) {
current = filepath.Join(current, part)
@@ -777,14 +548,13 @@ func verifyDownloadedHash(digest []byte, entry *mfer.MFFilePath) error {
return errHashMismatch
}
// downloadFile downloads a URL to localPath, a path relative to dest, with
// hash verification. It downloads to a temporary file, verifies the hash,
// then renames to the final path. Progress is reported via the progress
// channel.
// downloadFile downloads a URL to a local file path with hash verification.
// It downloads to a temporary file, verifies the hash, then renames to the final path.
// Progress is reported via the progress channel.
func downloadFile(
ctx context.Context,
client retryingClient,
fileURL, dest, localPath string,
fileURL, localPath string,
entry *mfer.MFFilePath,
progress chan<- DownloadProgress,
) error {
@@ -798,13 +568,11 @@ func downloadFile(
// Create parent directories if needed
dir := filepath.Dir(localPath)
if dir != "" && dir != "." {
err = checkNoSymlinks(dest, dir)
err = checkNoSymlinks(dir)
if err != nil {
return err
}
dir = filepath.Join(dest, dir)
err = os.MkdirAll(dir, dirPerms)
if err != nil {
return fmt.Errorf("failed to create directory %s: %w", dir, err)
@@ -814,61 +582,17 @@ func downloadFile(
tmpPath := tempPathFor(localPath)
return client.get(ctx, fileURL, func(resp *http.Response) error {
return saveResponse(resp, dest, tmpPath, localPath, entry, progress)
return saveResponse(resp, tmpPath, localPath, entry, progress)
})
}
// createTempFile creates tmpPath, a path relative to dest, as a new empty
// file.
func createTempFile(dest, tmpPath string) (*os.File, error) {
err := checkNoSymlinks(dest, tmpPath)
if err != nil {
return nil, err
}
path := filepath.Join(dest, tmpPath)
// Remove whatever is at tmpPath, such as a leftover from an
// interrupted run, rather than write into it: it may be a hard link
// to a file outside dest, and removing a hard link removes only this
// name. If the removal fails, O_EXCL below makes the create fail.
_ = os.Remove(path)
// Create the temp file only if nothing is at tmpPath (O_EXCL).
//
// G304: tmpPath is a relative path that sanitizePath keeps inside dest
// as text, and checkNoSymlinks just found no symlink in it.
out, err := os.OpenFile( //nolint:gosec // G304: see comment above
path, os.O_RDWR|os.O_CREATE|os.O_EXCL, filePerms)
if err != nil {
return nil, fmt.Errorf("failed to create temp file: %w", err)
}
return out, nil
}
// moveIntoPlace renames tmpPath to localPath, both relative to dest.
func moveIntoPlace(dest, tmpPath, localPath string) error {
err := checkNoSymlinks(dest, localPath)
if err != nil {
return err
}
err = os.Rename(filepath.Join(dest, tmpPath), filepath.Join(dest, localPath))
if err != nil {
return fmt.Errorf("failed to rename temp file: %w", err)
}
return nil
}
// saveResponse writes resp's body to tmpPath, verifies it against entry,
// and renames it to localPath, both paths relative to dest. It starts a
// new temp file each time and removes it on failure, so a retry after a
// failed try never appends to or keeps a partial file.
// and renames it to localPath. It starts a new temp file each time and
// removes it on failure, so a retry after a failed try never appends to
// or keeps a partial file.
func saveResponse(
resp *http.Response,
dest, tmpPath, localPath string,
tmpPath, localPath string,
entry *mfer.MFFilePath,
progress chan<- DownloadProgress,
) error {
@@ -880,22 +604,27 @@ func saveResponse(
totalBytes = expectedSize
}
out, err := createTempFile(dest, tmpPath)
err := checkNoSymlinks(tmpPath)
if err != nil {
return err
}
// A recorded mode of 0 means none was recorded. Of any other, only the
// permission bits are set, whatever the umask, so setuid, setgid and
// sticky never are, whichever caller passed the entry.
if entry.GetMode() != 0 {
err = out.Chmod(os.FileMode(entry.GetMode()).Perm())
if err != nil {
_ = out.Close()
_ = os.Remove(filepath.Join(dest, tmpPath))
// Remove whatever is at tmpPath, such as a leftover from an
// interrupted run, rather than write into it: it may be a hard link
// to a file outside the target directory, and removing a hard link
// removes only this name. If the removal fails, O_EXCL below makes
// the create fail.
_ = os.Remove(tmpPath)
return fmt.Errorf("failed to set mode: %w", err)
}
// Create the temp file only if nothing is at tmpPath (O_EXCL).
//
// G304: tmpPath is a relative path that sanitizePath keeps inside the
// target directory as text, and checkNoSymlinks just found no symlink
// in it.
out, err := os.OpenFile( //nolint:gosec // G304: see comment above
tmpPath, os.O_RDWR|os.O_CREATE|os.O_EXCL, filePerms)
if err != nil {
return fmt.Errorf("failed to create temp file: %w", err)
}
// Set up hash computation
@@ -917,10 +646,10 @@ func saveResponse(
closeErr := out.Close()
err = finishDownload(
dest, tmpPath, localPath, written, expectedSize, h.Sum(nil), entry,
tmpPath, localPath, written, expectedSize, h.Sum(nil), entry,
copyErr, closeErr)
if err != nil {
_ = os.Remove(filepath.Join(dest, tmpPath))
_ = os.Remove(tmpPath)
return err
}
@@ -931,7 +660,7 @@ func saveResponse(
// finishDownload validates the copy result, verifies size and hash, and
// moves the temp file into place. On error the caller removes tmpPath.
func finishDownload(
dest, tmpPath, localPath string,
tmpPath, localPath string,
written, expectedSize int64,
digest []byte,
entry *mfer.MFFilePath,
@@ -957,5 +686,16 @@ func finishDownload(
return err
}
return moveIntoPlace(dest, tmpPath, localPath)
err = checkNoSymlinks(localPath)
if err != nil {
return err
}
// Rename temp file to final path
err = os.Rename(tmpPath, localPath)
if err != nil {
return fmt.Errorf("failed to rename temp file: %w", err)
}
return nil
}
internal/cli/fetch_test.go
+36 -739
View File
@@ -4,29 +4,24 @@ package cli
import (
"bytes"
"context"
"crypto/sha256"
"flag"
"fmt"
"io"
"maps"
"net"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"slices"
"strconv"
"sync"
"sync/atomic"
"testing"
"time"
"uuid"
"github.com/klauspost/compress/zstd"
"github.com/multiformats/go-multihash"
"github.com/spf13/afero"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"google.golang.org/protobuf/proto"
urfcli "github.com/urfave/cli/v2"
"sneak.berlin/go/mfer/mfer"
)
@@ -240,33 +235,6 @@ func manifestOf(t *testing.T, files map[string][]byte) []byte {
return scanToManifest(t, sourceFs)
}
// filesUnder returns the content of every file under dir, by its path
// relative to dir.
func filesUnder(t *testing.T, dir string) map[string][]byte {
t.Helper()
files := map[string][]byte{}
err := filepath.WalkDir(dir, func(path string, entry os.DirEntry, err error) error {
if err != nil || entry.IsDir() {
return err
}
rel, err := filepath.Rel(dir, path)
if err != nil {
return err
}
content, err := os.ReadFile(path) //nolint:gosec // test-controlled path
files[filepath.ToSlash(rel)] = content
return err
})
require.NoError(t, err)
return files
}
// testClient returns the client tests download with. Its retries wait
// milliseconds rather than seconds.
func testClient() retryingClient {
@@ -342,7 +310,7 @@ func TestFetchFromHTTP(t *testing.T) {
fileURL := baseURL + f.GetPath()
err = downloadFile(context.Background(), testClient(),
fileURL, ".", localPath, f, progress)
fileURL, localPath, f, progress)
require.NoError(t, err, "failed to download %s", f.GetPath())
}
@@ -390,7 +358,7 @@ func TestFetchHashMismatch(t *testing.T) {
// Try to download - should fail with hash mismatch
err = downloadFile(context.Background(), testClient(),
server.URL+"/file.txt", ".", testFileTxt, files[0], nil)
server.URL+"/file.txt", testFileTxt, files[0], nil)
require.Error(t, err)
assert.Contains(t, err.Error(), "mismatch")
@@ -436,7 +404,7 @@ func TestFetchSizeMismatch(t *testing.T) {
// Try to download - should fail with size mismatch
err = downloadFile(context.Background(), testClient(),
server.URL+"/file.txt", ".", testFileTxt, files[0], nil)
server.URL+"/file.txt", testFileTxt, files[0], nil)
require.Error(t, err)
assert.Contains(t, err.Error(), "size mismatch")
@@ -494,7 +462,7 @@ func TestFetchProgress(t *testing.T) {
// Download
err = downloadFile(context.Background(), testClient(),
server.URL+"/large.txt", ".", "large.txt", files[0], progress)
server.URL+"/large.txt", "large.txt", files[0], progress)
close(progress)
<-done
@@ -517,51 +485,24 @@ func TestFetchProgress(t *testing.T) {
assert.Equal(t, content, downloaded)
}
// TestFetchRefusesSymlinks runs fetch with --dest naming a directory other
// than the current one, which holds a symlink pointing outside it, in each
// place fetch writes: a parent directory, the temp file, the file itself,
// which the temp file is renamed onto, and the saved manifest's temp file
// and final name; and once as a directory inside a plain directory. The
// fetch must fail, and neither the outside directory nor the current one
// may change.
// TestFetchRefusesSymlinks runs fetch into a destination directory that
// holds a symlink pointing outside it, in each of the three places fetch
// writes: a parent directory, the temp file, and the file itself, which
// the temp file is renamed onto; and once as a directory inside a plain
// directory. The fetch must fail and nothing outside may change.
//
//nolint:paralleltest // changes the process-global working directory
func TestFetchRefusesSymlinks(t *testing.T) {
// What a link standing for a file points to: a file outside that does
// not exist yet.
const newFile = "new.txt"
tests := []struct {
name string
entry string // the manifest's only file
link string // symlink placed in the destination directory
target string // what link points to, relative to the outside directory
failure string // what fetch reports it was doing when it found link
name string
entry string // the manifest's only file
link string // symlink placed in the destination directory
target string // what link points to, relative to the outside directory
}{
{
"parent directory", "sub/deeper/file.txt", "sub", ".",
"failed to download sub/deeper/file.txt",
},
{
"directory inside a plain directory", "docs/data/passwd", "docs/data", ".",
"failed to download docs/data/passwd",
},
{
"temp file", testFileTxt, ".file.txt.tmp", newFile,
"failed to download " + testFileTxt,
},
{
"file", testFileTxt, testFileTxt, newFile,
"failed to download " + testFileTxt,
},
{
"manifest temp file", testFileTxt, tempPathFor(defaultManifestName), newFile,
"failed to save manifest",
},
{
"manifest", testFileTxt, defaultManifestName, newFile,
"failed to save manifest",
},
{"parent directory", "sub/deeper/file.txt", "sub", "."},
{"directory inside a plain directory", "docs/data/passwd", "docs/data", "."},
{"temp file", testFileTxt, ".file.txt.tmp", "new.txt"},
{"file", testFileTxt, testFileTxt, "new.txt"},
}
for _, tt := range tests {
@@ -576,61 +517,23 @@ func TestFetchRefusesSymlinks(t *testing.T) {
defer server.Close()
outside := t.TempDir()
cwd := chdirTemp(t)
dest := t.TempDir()
link := filepath.Join(dest, tt.link)
require.NoError(t, os.MkdirAll(filepath.Dir(link), 0o750))
require.NoError(t, os.Symlink(filepath.Join(outside, tt.target), link))
chdirTemp(t)
require.NoError(t, os.MkdirAll(filepath.Dir(tt.link), 0o750))
require.NoError(t, os.Symlink(filepath.Join(outside, tt.target), tt.link))
opts := testOpts([]string{
testApp, cmdFetch, "-q", "--" + flagDest, dest, server.URL,
}, afero.NewOsFs())
opts := testOpts([]string{testApp, cmdFetch, "-q", server.URL}, afero.NewOsFs())
assert.Equal(t, 1, runCLI(opts))
assert.Contains(t, testStderr(t, opts),
tt.failure+": symlink in path not allowed: "+link)
assert.Contains(t, testStderr(t, opts), "failed to download "+tt.entry+
": symlink in path not allowed: "+tt.link)
written, err := os.ReadDir(outside)
require.NoError(t, err)
assert.Empty(t, written, "fetch wrote outside the destination")
written, err = os.ReadDir(cwd)
require.NoError(t, err)
assert.Empty(t, written, "fetch wrote to the current directory")
})
}
}
// TestFetchDoesNotSkipThroughSymlink runs fetch with --dest holding a
// symlink to a directory outside it, where the file the manifest lists
// through that symlink already sits with the listed content. fetch must
// not take that file as already present: it must fail on the symlink, as
// the download would, and leave the outside file alone.
func TestFetchDoesNotSkipThroughSymlink(t *testing.T) {
t.Parallel()
content := []byte("fetched")
files := map[string][]byte{"sub/" + testFileTxt: content}
server := httptest.NewServer(fetchTestHandler(manifestOf(t, files), files))
defer server.Close()
outside := t.TempDir()
require.NoError(t, os.WriteFile(filepath.Join(outside, testFileTxt), content, 0o600))
dest := t.TempDir()
link := filepath.Join(dest, "sub")
require.NoError(t, os.Symlink(outside, link))
opts := testOpts([]string{
testApp, cmdFetch, "-q", "--" + flagDest, dest, server.URL,
}, afero.NewOsFs())
assert.Equal(t, 1, runCLI(opts))
assert.Contains(t, testStderr(t, opts),
"failed to download sub/"+testFileTxt+": symlink in path not allowed: "+link)
assert.Equal(t, map[string][]byte{testFileTxt: content}, filesUnder(t, outside))
}
// TestFetchReplacesHardLinkAtTempName runs fetch into a destination
// directory that holds, at the temp file's name, a hard link to a file
// outside it. To fetch that is an ordinary leftover from an interrupted
@@ -856,7 +759,7 @@ func TestDownloadFileRetriesToSuccess(t *testing.T) {
chdirTemp(t)
err = downloadFile(context.Background(), testClient(),
server.URL+"/"+testFileTxt, ".", testFileTxt, manifest.Files()[0], nil)
server.URL+"/"+testFileTxt, testFileTxt, manifest.Files()[0], nil)
require.NoError(t, err)
assert.Equal(t, int32(3), requests.Load())
@@ -945,617 +848,6 @@ func TestFetchEscapedPaths(t *testing.T) {
}
}
// TestFetchTree runs fetch on a tree with nested directories. Every file
// the manifest lists must land under its own path with its own content,
// beside the manifest, and nothing else may be left in the destination.
//
//nolint:paralleltest // changes the process-global working directory
func TestFetchTree(t *testing.T) {
files := map[string][]byte{
"top.txt": []byte("at the top"),
"sub/one.txt": []byte("one level down"),
"sub/deeper/two.txt": []byte("two levels down"),
"other/deep/est.txt": []byte("in a second directory"),
}
manifest := manifestOf(t, files)
server := httptest.NewServer(fetchTestHandler(manifest, files))
defer server.Close()
dest := chdirTemp(t)
opts := testOpts([]string{testApp, cmdFetch, "-q", server.URL}, afero.NewOsFs())
require.Equal(t, 0, runCLI(opts), testStderr(t, opts))
want := maps.Clone(files)
want[defaultManifestName] = manifest
assert.Equal(t, want, filesUnder(t, dest))
}
// TestFetchFailsOnHashMismatch runs fetch against a server that serves a
// file with the size the manifest lists but different content. fetch must
// exit non-zero and leave no file in the destination.
//
//nolint:paralleltest // changes the process-global working directory
func TestFetchFailsOnHashMismatch(t *testing.T) {
listed := map[string][]byte{testDirFile: []byte("original")}
served := map[string][]byte{testDirFile: []byte("tampered")}
server := httptest.NewServer(fetchTestHandler(manifestOf(t, listed), served))
defer server.Close()
dest := chdirTemp(t)
opts := testOpts([]string{testApp, cmdFetch, "-q", server.URL}, afero.NewOsFs())
assert.Equal(t, 1, runCLI(opts))
assert.Empty(t, filesUnder(t, dest))
}
// TestFetchIntoPartlyFilledDestination runs fetch where an interrupted
// fetch of an older version of the tree left one file current, one file
// out of date and one half written to its temp file, beside a file the
// manifest does not list. fetch skips the current file and downloads the
// other two. The out-of-date file has the same size as the new version,
// so only its hash shows that it must be replaced. The file the manifest
// does not list is left alone, and the manifest is saved beside the files.
//
//nolint:paralleltest // changes the process-global working directory
func TestFetchIntoPartlyFilledDestination(t *testing.T) {
files := map[string][]byte{
"current.txt": []byte("already fetched"),
"sub/changed.txt": []byte("new version"),
"sub/partial.txt": []byte("cut off partway"),
}
unlisted := []byte("not in the manifest")
manifest := manifestOf(t, files)
tree := fetchTestHandler(manifest, files)
var (
mu sync.Mutex
requested []string
)
server := httptest.NewServer(
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
mu.Lock()
requested = append(requested, r.URL.Path)
mu.Unlock()
tree.ServeHTTP(w, r)
}))
defer server.Close()
dest := chdirTemp(t)
require.NoError(t, os.MkdirAll("sub", 0o750))
require.NoError(t, os.WriteFile("current.txt", files["current.txt"], 0o600))
require.NoError(t, os.WriteFile("sub/changed.txt", []byte("old version"), 0o600))
require.NoError(t,
os.WriteFile(tempPathFor("sub/partial.txt"), []byte("cut off"), 0o600))
require.NoError(t, os.WriteFile("unlisted.txt", unlisted, 0o600))
opts := testOpts([]string{testApp, cmdFetch, server.URL}, afero.NewOsFs())
require.Equal(t, 0, runCLI(opts), testStderr(t, opts))
assert.Contains(t, testStderr(t, opts), "skipping current.txt: already present")
want := maps.Clone(files)
want["unlisted.txt"] = unlisted
want[defaultManifestName] = manifest
assert.Equal(t, want, filesUnder(t, dest))
mu.Lock()
defer mu.Unlock()
assert.ElementsMatch(t, []string{
"/" + defaultManifestName, "/sub/changed.txt", "/sub/partial.txt",
}, requested)
}
// TestFetchIntoDest fetches a tree with --dest into a directory that does
// not exist yet. The files and the manifest must land there and nowhere
// else, and check must pass on the result with no extra files. A second
// fetch into the same directory must download nothing but the manifest.
//
//nolint:paralleltest // changes the process-global working directory
func TestFetchIntoDest(t *testing.T) {
files := map[string][]byte{
"top.txt": []byte("at the top"),
"sub/one.txt": []byte("one level down"),
}
manifest := manifestOf(t, files)
tree := fetchTestHandler(manifest, files)
var (
mu sync.Mutex
requested []string
)
server := httptest.NewServer(
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
mu.Lock()
requested = append(requested, r.URL.Path)
mu.Unlock()
tree.ServeHTTP(w, r)
}))
defer server.Close()
cwd := chdirTemp(t)
dest := filepath.Join(t.TempDir(), "mirror")
fetch := []string{testApp, cmdFetch, "-q", "--" + flagDest, dest, server.URL}
opts := testOpts(fetch, afero.NewOsFs())
require.Equal(t, 0, runCLI(opts), testStderr(t, opts))
want := maps.Clone(files)
want[defaultManifestName] = manifest
assert.Equal(t, want, filesUnder(t, dest))
assert.Empty(t, filesUnder(t, cwd), "fetch wrote outside --dest")
check := testOpts([]string{
testApp, cmdCheck, "-q", testFlagBase, dest, testFlagNoExtra,
filepath.Join(dest, defaultManifestName),
}, afero.NewOsFs())
require.Equal(t, 0, runCLI(check), testStderr(t, check))
mu.Lock()
requested = nil
mu.Unlock()
opts = testOpts(fetch, afero.NewOsFs())
require.Equal(t, 0, runCLI(opts), testStderr(t, opts))
assert.Equal(t, want, filesUnder(t, dest))
mu.Lock()
defer mu.Unlock()
assert.Equal(t, []string{"/" + defaultManifestName}, requested)
}
// TestFetchRequireSignature runs fetch with --require-signature. A
// manifest that is unsigned, or signed by another key, must stop fetch
// with check's message before it downloads or writes anything; the
// required key lets it through. The signed cases need gpg and are skipped
// without it, as the other signing tests are.
//
//nolint:paralleltest // signedManifest calls t.Setenv, which bars t.Parallel
func TestFetchRequireSignature(t *testing.T) {
files := map[string][]byte{testFileTxt: []byte("signed file")}
t.Run("unsigned", func(t *testing.T) {
assertFetchRefused(t, manifestOf(t, files), files,
"manifest is not signed, but signature from "+msgFpA+" is required",
"--"+flagRequireSignature, msgFpA)
})
t.Run("signed", func(t *testing.T) {
manifest := signedManifest(t, files)
signer, err := signedChecker(t, manifest).
ExtractEmbeddedSigningKeyFP(context.Background())
require.NoError(t, err)
assertFetchRefused(t, manifest, files,
"embedded signing key fingerprint "+signer+" does not match required "+msgFpB,
"--"+flagRequireSignature, msgFpB)
server := httptest.NewServer(fetchTestHandler(manifest, files))
defer server.Close()
dest := t.TempDir()
opts := testOpts([]string{
testApp, cmdFetch, "-q", "--" + flagDest, dest,
"--" + flagRequireSignature, signer, server.URL,
}, afero.NewOsFs())
require.Equal(t, 0, runCLI(opts), testStderr(t, opts))
assert.Equal(t, files[testFileTxt], filesUnder(t, dest)[testFileTxt])
})
}
// TestFetchRefusesListedManifestName fetches manifests that list, at the
// top of the tree, the name fetch saves the manifest under or that name's
// temp file: as a file, as a directory, in capitals, and with a leading
// "./". Saving the manifest would replace or remove what is listed there,
// so fetch must refuse the manifest before it creates the destination or
// requests any file.
func TestFetchRefusesListedManifestName(t *testing.T) {
t.Parallel()
for _, listed := range []string{
defaultManifestName,
tempPathFor(defaultManifestName),
defaultManifestName + "/" + testFileTxt,
"INDEX.MF",
"./" + defaultManifestName,
} {
t.Run(listed, func(t *testing.T) {
t.Parallel()
files := map[string][]byte{listed: []byte("listed")}
assertFetchRefused(t, builtManifest(t, files), files,
"manifest lists a file where fetch writes another file: "+listed)
})
}
}
// TestFetchRefusesListedTempName fetches manifests that list a.txt and
// .a.txt.tmp, the temp file fetch downloads a.txt to, at the top of the
// tree and in a directory. Downloading a.txt would remove .a.txt.tmp, so
// fetch must refuse the manifest before it creates the destination or
// requests any file. README with .README.tmp checks that temp names are
// compared ignoring case. A manifest that lists only one of the two is
// fetched in full.
func TestFetchRefusesListedTempName(t *testing.T) {
t.Parallel()
for _, dir := range []string{"", "sub/"} {
for file, tmp := range map[string]string{
dir + "a.txt": dir + ".a.txt.tmp",
dir + "README": dir + ".README.tmp",
} {
both := map[string][]byte{
file: []byte("a file"),
tmp: []byte("a file at its temp name"),
}
t.Run(file+" and "+tmp, func(t *testing.T) {
t.Parallel()
assertFetchRefused(t, builtManifest(t, both), both,
"manifest lists a file where fetch writes another file: "+
tmp+" (the temp file for "+file+")")
})
for listed, content := range both {
t.Run("only "+listed, func(t *testing.T) {
t.Parallel()
files := map[string][]byte{listed: content}
manifest := builtManifest(t, files)
server := httptest.NewServer(fetchTestHandler(manifest, files))
defer server.Close()
dest := t.TempDir()
opts := testOpts([]string{
testApp, cmdFetch, "-q", "--" + flagDest, dest, server.URL,
}, afero.NewOsFs())
require.Equal(t, 0, runCLI(opts), testStderr(t, opts))
want := maps.Clone(files)
want[defaultManifestName] = manifest
assert.Equal(t, want, filesUnder(t, dest))
})
}
}
}
}
// TestFetchRefusesNamesEqualIgnoringCase fetches manifests that list two
// paths that are one name on a case-insensitive filesystem. Fetched
// there, of two such files, at the top of the tree or in a directory,
// one replaces the other and fetch exits 0. A file and a directory
// another file is in stop fetch partway with a non-zero exit, leaving a
// partial tree. Two spellings of one directory put both files in one
// directory, one of them under a spelling the manifest does not list,
// and check reports that file as not in the manifest. So fetch must
// refuse each on every filesystem before it creates the destination or
// requests any file. A file and a directory with the same name, and a
// file listed twice, are refused the same way. A manifest whose names
// differ in more than letter case is fetched in full.
func TestFetchRefusesNamesEqualIgnoringCase(t *testing.T) {
t.Parallel()
for _, tc := range []struct{ first, second, message string }{
{"X.txt", "x.txt", "x.txt (the file X.txt)"},
{"sub/X.txt", "sub/x.txt", "sub/x.txt (the file sub/X.txt)"},
{"Dir", "dir/x", "dir/x (the file Dir)"},
{"Dir/a.txt", "dir/b.txt", "dir/b.txt (the directory Dir)"},
{"dir", "dir/x", "dir/x (the file dir)"},
{"./x.txt", "x.txt", "x.txt (the file ./x.txt)"},
} {
t.Run(tc.first+" and "+tc.second, func(t *testing.T) {
t.Parallel()
files := map[string][]byte{
tc.first: []byte("the first file"),
tc.second: []byte("the second file"),
}
assertFetchRefused(t, builtManifest(t, files), files,
"manifest lists a file where fetch writes another file: "+tc.message)
})
}
t.Run("names that differ in more than letter case", func(t *testing.T) {
t.Parallel()
files := map[string][]byte{
"A.txt": []byte("at the top"),
"B.txt": []byte("also at the top"),
"dir/a.txt": []byte("in a directory"),
"dir/b.txt": []byte("in the same directory"),
}
manifest := builtManifest(t, files)
server := httptest.NewServer(fetchTestHandler(manifest, files))
defer server.Close()
dest := t.TempDir()
opts := testOpts([]string{
testApp, cmdFetch, "-q", "--" + flagDest, dest, server.URL,
}, afero.NewOsFs())
require.Equal(t, 0, runCLI(opts), testStderr(t, opts))
want := maps.Clone(files)
want[defaultManifestName] = manifest
assert.Equal(t, want, filesUnder(t, dest))
})
}
// TestFetchSetsRecordedMode fetches a tree whose manifest records the
// modes 0640 and 0755. Each file must get its mode whatever the umask, and
// check must pass on the result. After one file's mode is changed, a
// second fetch must download that file again, and only it, to restore its
// mode.
func TestFetchSetsRecordedMode(t *testing.T) {
t.Parallel()
files := map[string][]byte{
testFileTxt: []byte("a file"),
"tool.sh": []byte("#!/bin/sh\n"),
}
modes := map[string]os.FileMode{testFileTxt: 0o640, "tool.sh": 0o755}
sourceFs := afero.NewMemMapFs()
for p, content := range files {
require.NoError(t, afero.WriteFile(sourceFs, "/"+p, content, modes[p]))
}
scanner := mfer.NewScannerWithOptions(&mfer.ScannerOptions{
Fs: sourceFs,
IncludePermissions: true,
})
require.NoError(t, scanner.EnumerateFS(sourceFs, "/", nil))
var manifest bytes.Buffer
require.NoError(t, scanner.ToManifest(context.Background(), &manifest, nil))
tree := fetchTestHandler(manifest.Bytes(), files)
var (
mu sync.Mutex
requested []string
)
server := httptest.NewServer(
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
mu.Lock()
requested = append(requested, r.URL.Path)
mu.Unlock()
tree.ServeHTTP(w, r)
}))
defer server.Close()
dest := t.TempDir()
fetch := []string{testApp, cmdFetch, "-q", "--" + flagDest, dest, server.URL}
opts := testOpts(fetch, afero.NewOsFs())
require.Equal(t, 0, runCLI(opts), testStderr(t, opts))
for p, mode := range modes {
info, err := os.Stat(filepath.Join(dest, p))
require.NoError(t, err)
assert.Equal(t, mode, info.Mode().Perm(), p)
}
opts = testOpts([]string{
testApp, cmdCheck, "-q", testFlagBase, dest,
filepath.Join(dest, defaultManifestName),
}, afero.NewOsFs())
require.Equal(t, 0, runCLI(opts), testStderr(t, opts))
require.NoError(t, os.Chmod(filepath.Join(dest, testFileTxt), 0o600))
mu.Lock()
requested = nil
mu.Unlock()
opts = testOpts(fetch, afero.NewOsFs())
require.Equal(t, 0, runCLI(opts), testStderr(t, opts))
info, err := os.Stat(filepath.Join(dest, testFileTxt))
require.NoError(t, err)
assert.Equal(t, os.FileMode(0o640), info.Mode().Perm())
mu.Lock()
defer mu.Unlock()
assert.ElementsMatch(t,
[]string{"/" + defaultManifestName, "/" + testFileTxt}, requested)
}
// TestFetchRefusesModeOutsidePermissionBits fetches manifests that record
// a mode with the setuid bit, once as Unix writes it (04755) and once as
// Go keeps it in os.FileMode. fetch must refuse both before it creates the
// destination or requests any file.
func TestFetchRefusesModeOutsidePermissionBits(t *testing.T) {
t.Parallel()
files := map[string][]byte{testFileTxt: []byte("a file")}
assertFetchRefused(t, manifestWithMode(t, testFileTxt, files[testFileTxt], 0o4755),
files, "manifest lists a mode outside 0777: file.txt (04755)")
assertFetchRefused(t,
manifestWithMode(t, testFileTxt, files[testFileTxt],
uint32(os.ModeSetuid|0o755)),
files, "manifest lists a mode outside 0777: file.txt (040000755)")
}
// TestDownloadFileSetsOnlyPermissionBits downloads a file whose entry
// records mode 0755 together with setuid, setgid or sticky, as Go keeps
// them in os.FileMode. fetchManifest would refuse such an entry; called
// directly, downloadFile must still set only the permission bits.
func TestDownloadFileSetsOnlyPermissionBits(t *testing.T) {
t.Parallel()
content := []byte("#!/bin/sh\n")
digest := sha256.Sum256(content)
hash, err := multihash.Encode(digest[:], multihash.SHA2_256)
require.NoError(t, err)
server := httptest.NewServer(
http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
_, _ = w.Write(content)
}))
defer server.Close()
for _, special := range []os.FileMode{os.ModeSetuid, os.ModeSetgid, os.ModeSticky} {
entry := &mfer.MFFilePath{
Path: testFileTxt,
Size: int64(len(content)),
Hashes: []*mfer.MFFileChecksum{{MultiHash: hash}},
Mode: uint32(special | 0o755),
}
dest := t.TempDir()
err := downloadFile(context.Background(), testClient(),
server.URL+"/"+testFileTxt, dest, testFileTxt, entry, nil)
require.NoError(t, err, special)
info, err := os.Stat(filepath.Join(dest, testFileTxt))
require.NoError(t, err)
assert.Equal(t, os.FileMode(0o755), info.Mode(), special)
}
}
// manifestWithMode returns a manifest listing one file, path, with content
// and the given recorded mode. It is assembled by hand, since the builder
// never records a mode outside 0777.
func manifestWithMode(t *testing.T, path string, content []byte, mode uint32) []byte {
t.Helper()
digest := sha256.Sum256(content)
hash, err := multihash.Encode(digest[:], multihash.SHA2_256)
require.NoError(t, err)
id := uuid.New()
inner, err := proto.Marshal(&mfer.MFFile{
Version: mfer.MFFile_VERSION_ONE,
Files: []*mfer.MFFilePath{{
Path: path,
Size: int64(len(content)),
Hashes: []*mfer.MFFileChecksum{{MultiHash: hash}},
Mode: mode,
}},
Uuid: id[:],
})
require.NoError(t, err)
encoder, err := zstd.NewWriter(nil)
require.NoError(t, err)
compressed := encoder.EncodeAll(inner, nil)
require.NoError(t, encoder.Close())
sum := sha256.Sum256(compressed)
outer, err := proto.Marshal(&mfer.MFFileOuter{
Version: mfer.MFFileOuter_VERSION_ONE,
CompressionType: mfer.MFFileOuter_COMPRESSION_ZSTD,
Size: int64(len(inner)),
Sha256: sum[:],
Uuid: id[:],
InnerMessage: compressed,
})
require.NoError(t, err)
return append([]byte(mfer.MAGIC), outer...)
}
// builtManifest returns a manifest of files, built directly rather than
// scanned, since a scan lists no hidden files and never a path starting
// with "./".
func builtManifest(t *testing.T, files map[string][]byte) []byte {
t.Helper()
builder := mfer.NewBuilder()
for p, content := range files {
_, err := builder.AddFile(mfer.RelFilePath(p), mfer.FileSize(len(content)),
mfer.ModTime(time.Now()), 0, bytes.NewReader(content), nil)
require.NoError(t, err)
}
var manifest bytes.Buffer
require.NoError(t, builder.Build(context.Background(), &manifest))
return manifest.Bytes()
}
// assertFetchRefused serves manifest, a manifest of files, and fetches it
// with flags into a directory that does not exist yet. fetch must fail
// with message after requesting only the manifest, and must not create
// the directory.
func assertFetchRefused(
t *testing.T, manifest []byte, files map[string][]byte,
message string, flags ...string,
) {
t.Helper()
tree := fetchTestHandler(manifest, files)
var (
mu sync.Mutex
requested []string
)
server := httptest.NewServer(
http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
mu.Lock()
requested = append(requested, r.URL.Path)
mu.Unlock()
tree.ServeHTTP(w, r)
}))
defer server.Close()
dest := filepath.Join(t.TempDir(), "mirror")
opts := testOpts(slices.Concat(
[]string{testApp, cmdFetch, "-q", "--" + flagDest, dest}, flags, []string{server.URL},
), afero.NewOsFs())
assert.Equal(t, 1, runCLI(opts))
assert.Contains(t, testStderr(t, opts), message)
assert.NoDirExists(t, dest, "fetch created the destination before refusing")
mu.Lock()
defer mu.Unlock()
assert.Equal(t, []string{"/" + defaultManifestName}, requested)
}
// TestFetchTimeoutFlag runs fetch with --timeout against a server that
// never answers. Without the flag's limit the request would wait forever;
// once fetch gives up on it, the server cancels fetch's context so that
@@ -1575,13 +867,18 @@ func TestFetchTimeoutFlag(t *testing.T) {
mfa := &CLIApp{Fs: afero.NewMemMapFs()}
cmd := mfa.fetchCommand()
cmd.Action = mfa.fetchManifestOperation
set := flag.NewFlagSet(cmdFetch, flag.ContinueOnError)
for _, f := range mfa.fetchCommand().Flags {
require.NoError(t, f.Apply(set))
}
require.NoError(t, set.Parse([]string{"--" + flagTimeout, "100ms", server.URL}))
cliCtx := urfcli.NewContext(nil, set, nil)
cliCtx.Context = ctx
// fetchManifestOperation logs to the process-global logger.
err := runLocked(func() error {
return cmd.Run(ctx, []string{cmdFetch, "--" + flagTimeout, "100ms", server.URL})
})
err := runLocked(func() error { return mfa.fetchManifestOperation(cliCtx) })
require.Error(t, err)
}
internal/cli/freshen.go
+40 -58
View File
@@ -14,7 +14,7 @@ import (
"github.com/dustin/go-humanize"
"github.com/multiformats/go-multihash"
"github.com/spf13/afero"
"github.com/urfave/cli/v3"
"github.com/urfave/cli/v2"
"sneak.berlin/go/mfer/internal/log"
"sneak.berlin/go/mfer/mfer"
)
@@ -48,7 +48,6 @@ type freshenEntry struct {
path string
size int64
mtime time.Time
mode fs.FileMode // mode to record, 0 for none
needsHash bool // true if new or changed
existing *mfer.MFFilePath // existing manifest entry if unchanged
}
@@ -56,14 +55,13 @@ type freshenEntry struct {
// freshenScanner walks the filesystem and compares it against the
// entries of an existing manifest.
type freshenScanner struct {
fs afero.Fs
absBase string
excluded []fs.FileInfo // files left out of the listing
includeDotfiles bool
followSymlinks bool
includePermissions bool
showProgress bool
existingByPath map[string]*mfer.MFFilePath
fs afero.Fs
absBase string
excluded []fs.FileInfo // files left out of the listing
includeDotfiles bool
followSymlinks bool
showProgress bool
existingByPath map[string]*mfer.MFFilePath
entries []*freshenEntry
scanCount int64
@@ -95,12 +93,6 @@ func (s *freshenScanner) resolveSymlink(path string) (fs.FileInfo, bool) {
// recordEntry classifies a scanned file as changed, unchanged, or added
// relative to the existing manifest.
func (s *freshenScanner) recordEntry(relPath string, info fs.FileInfo) {
// A mode of 0 records 0000, which means none was recorded.
var mode fs.FileMode
if s.includePermissions {
mode = info.Mode().Perm()
}
existing, inManifest := s.existingByPath[relPath]
if !inManifest {
s.added++
@@ -110,17 +102,16 @@ func (s *freshenScanner) recordEntry(relPath string, info fs.FileInfo) {
path: relPath,
size: info.Size(),
mtime: info.ModTime(),
mode: mode,
needsHash: true,
})
return
}
// Check if changed (size, mtime, or the mode to record). An entry
// with no recorded mtime cannot be compared, so it counts as changed
// and gets re-hashed; silently treating the absent mtime as the Unix
// epoch would classify every such entry as changed without saying why.
// Check if changed (size or mtime). An entry with no recorded mtime
// cannot be compared, so it counts as changed and gets re-hashed;
// silently treating the absent mtime as the Unix epoch would classify
// every such entry as changed without saying why.
existingMtime, haveMtime := entryMtime(existing)
if !haveMtime {
log.Debugf("%s: manifest entry has no mtime, treating as changed",
@@ -128,8 +119,7 @@ func (s *freshenScanner) recordEntry(relPath string, info fs.FileInfo) {
}
if !haveMtime || existing.GetSize() != info.Size() ||
!existingMtime.Equal(info.ModTime()) ||
fs.FileMode(existing.GetMode()) != mode {
!existingMtime.Equal(info.ModTime()) {
s.changed++
log.Verbosef("M %s", relPath)
@@ -137,7 +127,6 @@ func (s *freshenScanner) recordEntry(relPath string, info fs.FileInfo) {
path: relPath,
size: info.Size(),
mtime: info.ModTime(),
mode: mode,
needsHash: true,
})
} else {
@@ -147,7 +136,6 @@ func (s *freshenScanner) recordEntry(relPath string, info fs.FileInfo) {
path: relPath,
size: info.Size(),
mtime: info.ModTime(),
mode: mode,
needsHash: false,
existing: existing,
})
@@ -214,12 +202,12 @@ func (s *freshenScanner) walk(path string, info fs.FileInfo, walkErr error) erro
// resolveFreshenManifestPath determines the manifest path from the CLI
// arguments, searching directories for a manifest where needed.
func (mfa *CLIApp) resolveFreshenManifestPath(cmd *cli.Command) (string, error) {
if cmd.Args().Len() == 0 {
func (mfa *CLIApp) resolveFreshenManifestPath(ctx *cli.Context) (string, error) {
if ctx.Args().Len() == 0 {
return findManifest(mfa.Fs, ".")
}
arg := cmd.Args().Get(0)
arg := ctx.Args().Get(0)
info, statErr := mfa.Fs.Stat(arg)
if statErr == nil && info.IsDir() {
@@ -308,7 +296,7 @@ func (h *freshenHasher) processEntry(e *freshenEntry) error {
h.hashedFiles++
// Add to builder with computed hash
err = addFileToBuilder(h.builder, e.path, e.size, e.mtime, e.mode, hash)
err = addFileToBuilder(h.builder, e.path, e.size, e.mtime, hash)
if err != nil {
return fmt.Errorf("failed to add %s: %w", e.path, err)
}
@@ -350,14 +338,14 @@ func writeFreshenedManifest(
// newFreshenBuilder constructs the manifest builder configured from CLI
// flags.
func newFreshenBuilder(cmd *cli.Command) *mfer.Builder {
func newFreshenBuilder(ctx *cli.Context) *mfer.Builder {
builder := mfer.NewBuilder()
if cmd.Bool("include-timestamps") {
if ctx.Bool("include-timestamps") {
builder.SetIncludeTimestamps(true)
}
// Set up signing options if sign-key is provided
if signKey := cmd.String("sign-key"); signKey != "" {
if signKey := ctx.String("sign-key"); signKey != "" {
builder.SetSigningOptions(&mfer.SigningOptions{
KeyID: mfer.GPGKeyID(signKey),
})
@@ -370,13 +358,13 @@ func newFreshenBuilder(cmd *cli.Command) *mfer.Builder {
// freshenScan runs the scan phase against the loaded manifest entries
// and returns the populated scanner and the count of removed files.
func (mfa *CLIApp) freshenScan(
cmd *cli.Command, manifestPath, absBase string,
ctx *cli.Context, manifestPath, absBase string,
existingByPath map[string]*mfer.MFFilePath,
) (*freshenScanner, int64, error) {
log.Infof("scanning filesystem...")
startScan := time.Now()
showProgress := cmd.Bool("progress")
showProgress := ctx.Bool("progress")
// Leave out the manifest and a temp file left by an interrupted run,
// as gen does. A path that cannot be stat'd, normally because no file
@@ -391,14 +379,13 @@ func (mfa *CLIApp) freshenScan(
}
scanner := &freshenScanner{
fs: mfa.Fs,
absBase: absBase,
excluded: excluded,
includeDotfiles: cmd.Bool("include-dotfiles"),
followSymlinks: cmd.Bool("follow-symlinks"),
includePermissions: cmd.Bool(flagIncludePermissions),
showProgress: showProgress,
existingByPath: existingByPath,
fs: mfa.Fs,
absBase: absBase,
excluded: excluded,
includeDotfiles: ctx.Bool("include-dotfiles"),
followSymlinks: ctx.Bool("follow-symlinks"),
showProgress: showProgress,
existingByPath: existingByPath,
}
err := afero.Walk(mfa.Fs, absBase, scanner.walk)
@@ -446,7 +433,7 @@ func hashTotals(entries []*freshenEntry) (int64, int64) {
// runFreshenHash processes every entry through the hasher, aborting if
// the context is canceled.
func runFreshenHash(
ctx context.Context, hasher *freshenHasher, entries []*freshenEntry,
ctx *cli.Context, hasher *freshenHasher, entries []*freshenEntry,
) error {
for _, e := range entries {
select {
@@ -492,21 +479,18 @@ func (mfa *CLIApp) loadExistingEntries(
return existingByPath, nil
}
func (mfa *CLIApp) freshenManifestOperation(
ctx context.Context, cmd *cli.Command,
) error {
func (mfa *CLIApp) freshenManifestOperation(ctx *cli.Context) error {
log.Debug("freshenManifestOperation()")
basePath := cmd.String("base")
showProgress := cmd.Bool("progress")
basePath := ctx.String("base")
showProgress := ctx.Bool("progress")
// Find manifest file
manifestPath, err := mfa.resolveFreshenManifestPath(cmd)
manifestPath, err := mfa.resolveFreshenManifestPath(ctx)
if err != nil {
return fmt.Errorf("freshen: %w", err)
}
//nolint:contextcheck // mfer loads a manifest without a context
existingByPath, err := mfa.loadExistingEntries(manifestPath)
if err != nil {
return err
@@ -518,7 +502,7 @@ func (mfa *CLIApp) freshenManifestOperation(
}
// Phase 1: Scan filesystem
scanner, removed, err := mfa.freshenScan(cmd, manifestPath, absBase,
scanner, removed, err := mfa.freshenScan(ctx, manifestPath, absBase,
existingByPath)
if err != nil {
return err
@@ -540,7 +524,7 @@ func (mfa *CLIApp) freshenManifestOperation(
totalHashBytes: totalHashBytes,
filesToHash: filesToHash,
startHash: time.Now(),
builder: newFreshenBuilder(cmd),
builder: newFreshenBuilder(ctx),
}
err = runFreshenHash(ctx, hasher, scanner.entries)
@@ -564,7 +548,7 @@ func (mfa *CLIApp) freshenManifestOperation(
}
// Write updated manifest atomically (write to temp, then rename)
err = writeFreshenedManifest(ctx, mfa.Fs, hasher.builder, manifestPath)
err = writeFreshenedManifest(ctx.Context, mfa.Fs, hasher.builder, manifestPath)
if err != nil {
return err
}
@@ -624,12 +608,10 @@ func hashFile(r io.Reader, progress func(int64)) ([]byte, int64, error) {
// addFileToBuilder adds a new file entry to the builder
func addFileToBuilder(
b *mfer.Builder, path string, size int64, mtime time.Time, mode fs.FileMode,
hash []byte,
b *mfer.Builder, path string, size int64, mtime time.Time, hash []byte,
) error {
return b.AddFileWithHash(
mfer.RelFilePath(path), mfer.FileSize(size), mfer.ModTime(mtime), mode,
hash)
mfer.RelFilePath(path), mfer.FileSize(size), mfer.ModTime(mtime), hash)
}
// addExistingToBuilder adds an existing manifest entry to the builder.
@@ -649,7 +631,7 @@ func addExistingToBuilder(b *mfer.Builder, entry *mfer.MFFilePath) error {
err := b.AddFileWithHash(mfer.RelFilePath(entry.GetPath()),
mfer.FileSize(entry.GetSize()), mfer.ModTime(mtime),
fs.FileMode(entry.GetMode()), entry.GetHashes()[0].GetMultiHash())
entry.GetHashes()[0].GetMultiHash())
if err != nil {
return fmt.Errorf(
"manifest entry %s: %w (regenerate the manifest with mfer generate)",
internal/cli/freshen_test.go
+50 -188
View File
@@ -2,11 +2,11 @@
package cli
import (
"bytes"
"context"
"crypto/sha256"
"maps"
"os"
"path/filepath"
"slices"
"testing"
"time"
@@ -14,7 +14,6 @@ import (
"github.com/spf13/afero"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"google.golang.org/protobuf/proto"
"sneak.berlin/go/mfer/mfer"
)
@@ -32,214 +31,77 @@ func (s stubFileInfo) ModTime() time.Time { return s.mtime }
func (s stubFileInfo) IsDir() bool { return false }
func (s stubFileInfo) Sys() any { return nil }
// setupFreshenDir writes files, by path and content, into a fresh temp
// dir and runs gen on it. It returns the temp dir and the path of the
// manifest gen wrote there.
func setupFreshenDir(
t *testing.T, fs afero.Fs, files map[string]string,
) (string, string) {
// setupFreshenDir populates /testdir with two files, scans it, and
// writes the resulting manifest to /testdir/index.mf.
func setupFreshenDir(t *testing.T, fs afero.Fs) {
t.Helper()
root := t.TempDir()
manifestPath := filepath.Join(root, defaultManifestName)
require.NoError(t, fs.MkdirAll(testDir, 0o755))
writeTestFile(t, fs, testFile1, "content1")
writeTestFile(t, fs, "/testdir/file2.txt", "content2")
for path, content := range files {
require.NoError(t, fs.MkdirAll(filepath.Dir(filepath.Join(root, path)), 0o750))
writeTestFile(t, fs, filepath.Join(root, path), content)
}
// Generate initial manifest
opts := &mfer.ScannerOptions{Fs: fs}
s := mfer.NewScannerWithOptions(opts)
require.NoError(t, s.EnumeratePath(testDir, nil))
opts := testOpts([]string{testApp, cmdGenerate, "-q", "-o", manifestPath, root}, fs)
require.Equal(t, 0, runCLI(opts), "stderr: %s", testStderr(t, opts))
var manifestBuf bytes.Buffer
return root, manifestPath
require.NoError(t, s.ToManifest(context.Background(), &manifestBuf, nil))
// Write manifest to filesystem
require.NoError(t,
afero.WriteFile(fs, "/testdir/index.mf", manifestBuf.Bytes(), 0o644))
}
// runFreshen runs freshen on the manifest at manifestPath for the tree
// at root and requires it to succeed.
func runFreshen(t *testing.T, fs afero.Fs, root, manifestPath string) {
t.Helper()
opts := testOpts([]string{
testApp, cmdFreshen, "-q", testFlagBase, root, manifestPath,
}, fs)
require.Equal(t, 0, runCLI(opts), "stderr: %s", testStderr(t, opts))
}
// manifestFiles returns the file entries of the manifest at path.
func manifestFiles(t *testing.T, fs afero.Fs, path string) []*mfer.MFFilePath {
t.Helper()
manifest, err := mfer.NewManifestFromFile(&mfer.ManifestFromFileOptions{
Path: path,
Fs: fs,
})
require.NoError(t, err)
return manifest.Files()
}
// TestFreshenUnchanged freshens a tree that has not changed since gen
// made its manifest: the manifest must list the same entries as before.
func TestFreshenUnchanged(t *testing.T) {
t.Parallel()
fs := afero.NewOsFs()
root, manifestPath := setupFreshenDir(t, fs,
map[string]string{testFileTxt: "content1", testDirFile: "content2"})
before := manifestFiles(t, fs, manifestPath)
fs := afero.NewMemMapFs()
setupFreshenDir(t, fs)
runFreshen(t, fs, root, manifestPath)
after := manifestFiles(t, fs, manifestPath)
require.Len(t, after, len(before))
for i := range before {
assert.True(t, proto.Equal(before[i], after[i]),
"entry for %s changed", before[i].GetPath())
}
// Parse manifest to verify
manifest, err := mfer.NewManifestFromFile(&mfer.ManifestFromFileOptions{
Path: "/testdir/index.mf",
Fs: fs,
})
require.NoError(t, err)
assert.Len(t, manifest.Files(), 2)
}
// TestFreshenRecordsModeOnlyWhenAsked changes only the modes of a tree
// after gen made its manifest, which recorded every mode as 0000. freshen
// --include-permissions must record each file's permission bits, and a
// later freshen without it must record 0000 again, although no file's
// content or mtime changed.
func TestFreshenRecordsModeOnlyWhenAsked(t *testing.T) {
t.Parallel()
fs := afero.NewOsFs()
root, manifestPath := setupFreshenDir(t, fs,
map[string]string{testFileTxt: "a file", testDirFile: "a file in dir"})
require.NoError(t, fs.Chmod(filepath.Join(root, testFileTxt), 0o640))
require.NoError(t, fs.Chmod(filepath.Join(root, testDirFile), 0o755))
recordedModes := func() map[string]uint32 {
modes := map[string]uint32{}
for _, f := range manifestFiles(t, fs, manifestPath) {
modes[f.GetPath()] = f.GetMode()
}
return modes
}
opts := testOpts([]string{
testApp, cmdFreshen, "-q", "--" + flagIncludePermissions,
testFlagBase, root, manifestPath,
}, fs)
require.Equal(t, 0, runCLI(opts), "stderr: %s", testStderr(t, opts))
assert.Equal(t, map[string]uint32{testFileTxt: 0o640, testDirFile: 0o755},
recordedModes())
runFreshen(t, fs, root, manifestPath)
assert.Equal(t, map[string]uint32{testFileTxt: 0, testDirFile: 0},
recordedModes())
}
// assertManifestLists asserts that the manifest at manifestPath lists
// exactly the files in want, each with the size and SHA-256 hash of its
// content in want and the mtime of the file of that name under root.
func assertManifestLists(
t *testing.T, fs afero.Fs, root, manifestPath string, want map[string]string,
) {
t.Helper()
files := manifestFiles(t, fs, manifestPath)
listed := make([]string, 0, len(files))
for _, f := range files {
listed = append(listed, f.GetPath())
content, ok := want[f.GetPath()]
if !ok {
continue // reported by the ElementsMatch below
}
digest := sha256.Sum256([]byte(content))
hash, err := multihash.Encode(digest[:], multihash.SHA2_256)
require.NoError(t, err)
assert.Equal(t, int64(len(content)), f.GetSize(), f.GetPath())
require.NotEmpty(t, f.GetHashes(), f.GetPath())
assert.Equal(t, hash, f.GetHashes()[0].GetMultiHash(), f.GetPath())
info, err := fs.Stat(filepath.Join(root, f.GetPath()))
require.NoError(t, err)
mtime, ok := entryMtime(f)
assert.True(t, ok && mtime.Equal(info.ModTime()),
"%s: manifest has mtime %v, file has %v",
f.GetPath(), mtime, info.ModTime())
}
assert.ElementsMatch(t, slices.Collect(maps.Keys(want)), listed)
}
// TestFreshenWithChanges makes one change to a tree after gen made its
// manifest, then freshens the manifest. The rewritten manifest must list
// exactly the files now in the tree, and check must pass on the tree.
func TestFreshenWithChanges(t *testing.T) {
t.Parallel()
tree := map[string]string{testFileTxt: "content1", testDirFile: "content2"}
fs := afero.NewMemMapFs()
setupFreshenDir(t, fs)
// Every file a case writes gets this mtime, which differs from the one
// gen recorded, so an edit that keeps the size is told apart by its
// mtime whatever the filesystem's clock resolution.
writtenMtime := time.Unix(1_700_000_000, 0)
// Verify initial manifest has 2 files
manifest, err := mfer.NewManifestFromFile(&mfer.ManifestFromFileOptions{
Path: "/testdir/index.mf",
Fs: fs,
})
require.NoError(t, err)
assert.Len(t, manifest.Files(), 2)
for _, tc := range []struct {
name string
write map[string]string // files to write, by path and content
remove string // file to delete, if any
}{
{
name: "modified file",
write: map[string]string{testDirFile: "modified content2"},
},
{
name: "modified file, same size",
write: map[string]string{testDirFile: "CONTENT2"},
},
{
name: "new file",
write: map[string]string{"dir/new.txt": "content3"},
},
{
name: "deleted file",
remove: testFileTxt,
},
} {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
// Add a new file
writeTestFile(t, fs, "/testdir/file3.txt", "content3")
fs := afero.NewOsFs()
root, manifestPath := setupFreshenDir(t, fs, tree)
// Modify file2 (change content and size)
writeTestFile(t, fs, "/testdir/file2.txt", "modified content2")
// want is the tree as it is after the change.
want := maps.Clone(tree)
// Remove file1
require.NoError(t, fs.Remove(testFile1))
for path, content := range tc.write {
writeTestFile(t, fs, filepath.Join(root, path), content)
require.NoError(t, fs.Chtimes(
filepath.Join(root, path), writtenMtime, writtenMtime))
want[path] = content
}
// Note: The freshen operation would need to be run here
// For now, we just verify the test setup is correct
exists, _ := afero.Exists(fs, testFile1)
assert.False(t, exists)
if tc.remove != "" {
require.NoError(t, fs.Remove(filepath.Join(root, tc.remove)))
delete(want, tc.remove)
}
exists, _ = afero.Exists(fs, "/testdir/file3.txt")
assert.True(t, exists)
runFreshen(t, fs, root, manifestPath)
assertManifestLists(t, fs, root, manifestPath, want)
opts := testOpts([]string{
testApp, cmdCheck, "-q", testFlagNoExtra, testFlagBase, root, manifestPath,
}, fs)
assert.Equal(t, 0, runCLI(opts), "stderr: %s", testStderr(t, opts))
})
}
content, _ := afero.ReadFile(fs, "/testdir/file2.txt")
assert.Equal(t, "modified content2", string(content))
}
// TestFreshenLeavesManifestOutOfListing freshens a manifest kept in a
internal/cli/gen.go
+19 -23
View File
@@ -1,7 +1,6 @@
package cli
import (
"context"
"errors"
"fmt"
"os"
@@ -13,7 +12,7 @@ import (
"github.com/dustin/go-humanize"
"github.com/spf13/afero"
"github.com/urfave/cli/v3"
"github.com/urfave/cli/v2"
"sneak.berlin/go/mfer/internal/log"
"sneak.berlin/go/mfer/mfer"
)
@@ -89,28 +88,27 @@ func (mfa *CLIApp) collectInputPaths(args cli.Args) ([]string, error) {
}
// buildScannerOptions constructs scanner options from the CLI flags.
func (mfa *CLIApp) buildScannerOptions(cmd *cli.Command) *mfer.ScannerOptions {
output := cmd.String("output")
func (mfa *CLIApp) buildScannerOptions(ctx *cli.Context) *mfer.ScannerOptions {
output := ctx.String("output")
opts := &mfer.ScannerOptions{
IncludeDotfiles: cmd.Bool("include-dotfiles"),
FollowSymLinks: cmd.Bool("follow-symlinks"),
IncludeTimestamps: cmd.Bool("include-timestamps"),
IncludePermissions: cmd.Bool(flagIncludePermissions),
Fs: mfa.Fs,
IncludeDotfiles: ctx.Bool("include-dotfiles"),
FollowSymLinks: ctx.Bool("follow-symlinks"),
IncludeTimestamps: ctx.Bool("include-timestamps"),
Fs: mfa.Fs,
// Neither a manifest being replaced nor a temp file left by an
// interrupted run belongs in the new manifest.
ExcludePaths: []string{output, manifestTempPath(output)},
}
// Set seed for deterministic UUID if provided
if seed := cmd.String("seed"); seed != "" {
if seed := ctx.String("seed"); seed != "" {
opts.Seed = seed
log.Infof("using deterministic seed for manifest UUID")
}
// Set up signing options if sign-key is provided
if signKey := cmd.String("sign-key"); signKey != "" {
if signKey := ctx.String("sign-key"); signKey != "" {
opts.SigningOptions = &mfer.SigningOptions{
KeyID: mfer.GPGKeyID(signKey),
}
@@ -175,14 +173,14 @@ func (mfa *CLIApp) cleanupOnSignal(outFile afero.File, tmpPath string) chan os.S
// runEnumeratePhase enumerates all input paths with optional progress
// reporting and logs the totals.
func (mfa *CLIApp) runEnumeratePhase(cmd *cli.Command, s *mfer.Scanner) error {
func (mfa *CLIApp) runEnumeratePhase(ctx *cli.Context, s *mfer.Scanner) error {
// Set up enumeration progress reporting
var (
enumProgress chan mfer.EnumerateStatus
enumWg sync.WaitGroup
)
if cmd.Bool("progress") {
if ctx.Bool("progress") {
enumProgress = make(chan mfer.EnumerateStatus, 1)
enumWg.Add(1)
@@ -190,7 +188,7 @@ func (mfa *CLIApp) runEnumeratePhase(cmd *cli.Command, s *mfer.Scanner) error {
go reportEnumProgress(enumProgress, &enumWg)
}
err := mfa.enumerateInputs(s, cmd.Args(), enumProgress)
err := mfa.enumerateInputs(s, ctx.Args(), enumProgress)
if err != nil {
return err
}
@@ -203,24 +201,22 @@ func (mfa *CLIApp) runEnumeratePhase(cmd *cli.Command, s *mfer.Scanner) error {
return nil
}
func (mfa *CLIApp) generateManifestOperation(
ctx context.Context, cmd *cli.Command,
) error {
func (mfa *CLIApp) generateManifestOperation(ctx *cli.Context) error {
log.Debug("generateManifestOperation()")
s := mfer.NewScannerWithOptions(mfa.buildScannerOptions(cmd))
s := mfer.NewScannerWithOptions(mfa.buildScannerOptions(ctx))
// Phase 1: Enumeration - collect paths and stat files
err := mfa.runEnumeratePhase(cmd, s)
err := mfa.runEnumeratePhase(ctx, s)
if err != nil {
return err
}
showProgress := cmd.Bool("progress")
showProgress := ctx.Bool("progress")
// Check if output file exists
outputPath := cmd.String("output")
if exists, _ := afero.Exists(mfa.Fs, outputPath); exists && !cmd.Bool("force") {
outputPath := ctx.String("output")
if exists, _ := afero.Exists(mfa.Fs, outputPath); exists && !ctx.Bool("force") {
return fmt.Errorf("output file %s %w", outputPath, errOutputExists)
}
@@ -263,7 +259,7 @@ func (mfa *CLIApp) generateManifestOperation(
go reportScanProgress(scanProgress, &scanWg)
}
err = s.ToManifest(ctx, outFile, scanProgress)
err = s.ToManifest(ctx.Context, outFile, scanProgress)
scanWg.Wait()
internal/cli/list.go
+8 -10
View File
@@ -1,35 +1,33 @@
package cli
import (
"context"
"fmt"
"time"
"github.com/urfave/cli/v3"
"github.com/urfave/cli/v2"
"sneak.berlin/go/mfer/internal/log"
"sneak.berlin/go/mfer/mfer"
)
func (mfa *CLIApp) listManifestOperation(ctx context.Context, cmd *cli.Command) error {
func (mfa *CLIApp) listManifestOperation(ctx *cli.Context) error {
// Default to ErrorLevel for clean output
log.SetLevel(log.ErrorLevel)
longFormat := cmd.Bool("long")
print0 := cmd.Bool("print0")
longFormat := ctx.Bool("long")
print0 := ctx.Bool("print0")
pathOrURL, err := mfa.resolveManifestArg(cmd)
pathOrURL, err := mfa.resolveManifestArg(ctx)
if err != nil {
return fmt.Errorf("list: %w", err)
}
rc, err := mfa.openManifestReader(ctx, pathOrURL)
rc, err := mfa.openManifestReader(pathOrURL)
if err != nil {
return fmt.Errorf("list: %w", err)
}
defer func() { _ = rc.Close() }()
//nolint:contextcheck // mfer loads a manifest without a context
manifest, err := mfer.NewManifestFromReader(rc)
if err != nil {
return fmt.Errorf("list: failed to parse manifest: %w", err)
@@ -52,8 +50,8 @@ func (mfa *CLIApp) listManifestOperation(ctx context.Context, cmd *cli.Command)
mtimeStr = mtime.Format(time.RFC3339)
}
_, _ = fmt.Fprintf(mfa.Stdout, "%04o\t%d\t%s\t%s%s",
f.GetMode(), f.GetSize(), mtimeStr, f.GetPath(), lineEnd)
_, _ = fmt.Fprintf(mfa.Stdout, "%d\t%s\t%s%s",
f.GetSize(), mtimeStr, f.GetPath(), lineEnd)
} else {
_, _ = fmt.Fprintf(mfa.Stdout, "%s%s", f.GetPath(), lineEnd)
}
internal/cli/manifest_loader.go
+8 -8
View File
@@ -9,7 +9,7 @@ import (
"strings"
"time"
"github.com/urfave/cli/v3"
"github.com/urfave/cli/v2"
)
// manifestFetchTimeout bounds HTTP requests made to fetch a manifest.
@@ -30,13 +30,13 @@ func isHTTPURL(s string) bool {
// openManifestReader opens a manifest from a path or URL and returns a ReadCloser.
// The caller must close the returned reader.
func (mfa *CLIApp) openManifestReader(
ctx context.Context, pathOrURL string,
) (io.ReadCloser, error) {
func (mfa *CLIApp) openManifestReader(pathOrURL string) (io.ReadCloser, error) {
if isHTTPURL(pathOrURL) {
client := &http.Client{Timeout: manifestFetchTimeout}
req, err := http.NewRequestWithContext(ctx, http.MethodGet, pathOrURL, nil)
req, err := http.NewRequestWithContext(
context.Background(), http.MethodGet, pathOrURL, nil,
)
if err != nil {
return nil, fmt.Errorf("failed to fetch %s: %w", pathOrURL, err)
}
@@ -67,9 +67,9 @@ func (mfa *CLIApp) openManifestReader(
// resolveManifestArg resolves the manifest path from CLI arguments.
// HTTP(S) URLs are returned as-is. Directories are searched for index.mf.
// If no argument is given, the current directory is searched.
func (mfa *CLIApp) resolveManifestArg(cmd *cli.Command) (string, error) {
if cmd.Args().Len() > 0 {
arg := cmd.Args().Get(0)
func (mfa *CLIApp) resolveManifestArg(ctx *cli.Context) (string, error) {
if ctx.Args().Len() > 0 {
arg := ctx.Args().Get(0)
if isHTTPURL(arg) {
return arg, nil
}
internal/cli/mfer.go
+83 -131
View File
@@ -1,7 +1,6 @@
package cli
import (
"context"
"errors"
"fmt"
"io"
@@ -9,7 +8,7 @@ import (
"time"
"github.com/spf13/afero"
"github.com/urfave/cli/v3"
"github.com/urfave/cli/v2"
"sneak.berlin/go/mfer/internal/log"
"sneak.berlin/go/mfer/mfer"
)
@@ -21,14 +20,10 @@ const (
cmdFreshen = "freshen"
cmdExport = "export"
cmdFetch = "fetch"
cmdList = "list"
cmdVersion = "version"
flagProgress = "progress"
flagTimeout = "timeout"
flagDest = "dest"
flagRequireSignature = "require-signature"
flagIncludePermissions = "include-permissions"
flagProgress = "progress"
flagTimeout = "timeout"
manifestArgsUsage = "[manifest file]"
@@ -57,7 +52,7 @@ type CLIApp struct {
gitrev string
startupTime time.Time
exitCode int
app *cli.Command
app *cli.App
Stdin io.Reader // Standard input stream
Stdout io.Writer // Standard output stream for normal output
@@ -108,15 +103,15 @@ func (mfa *CLIApp) printBanner() {
// urfave/cli reads a flag from the nearest command that defines it, so each
// command in the lineage is asked. The highest -v count wins rather than the
// sum, because a subcommand without its own copies reads the root's.
func (mfa *CLIApp) setVerbosity(cmd *cli.Command) {
func (mfa *CLIApp) setVerbosity(c *cli.Context) {
_, present := os.LookupEnv("MFER_DEBUG")
verbosity := 0
quiet := false
for _, c := range cmd.Lineage() {
verbosity = max(verbosity, c.Count("verbose"))
quiet = quiet || c.Bool("quiet")
for _, ctx := range c.Lineage() {
verbosity = max(verbosity, ctx.Count("verbose"))
quiet = quiet || ctx.Bool("quiet")
}
switch {
@@ -130,67 +125,34 @@ func (mfa *CLIApp) setVerbosity(cmd *cli.Command) {
}
// commonFlags returns the -v and -q flags taken by the root and by the
// generate, check, freshen and fetch subcommands. They are local, so the
// root's copies are not inherited by the subcommands that do not take them.
// generate, check, freshen and fetch subcommands.
func commonFlags() []cli.Flag {
return []cli.Flag{
&cli.BoolFlag{
Name: "verbose",
Aliases: []string{"v"},
Usage: "Increase verbosity (-v for verbose, -v -v for debug)",
Local: true,
Count: new(int),
},
&cli.BoolFlag{
Name: "quiet",
Aliases: []string{"q"},
Usage: "Suppress output except errors",
Local: true,
},
}
}
// stopOnFirstArg returns the StopOnNthArg setting every command uses: flags
// are read only before the command's first argument, and everything after it
// is an argument, as with urfave/cli v2. So `mfer gen d -v` names a path "-v".
func stopOnFirstArg() *int {
n := 1
return &n
}
// requireSignatureFlag returns the --require-signature flag taken by the
// check and fetch subcommands.
func requireSignatureFlag() *cli.StringFlag {
return &cli.StringFlag{
Name: flagRequireSignature,
Aliases: []string{"S"},
Usage: "Require manifest to be signed by the specified GPG key ID",
Sources: cli.EnvVars("MFER_REQUIRE_SIGNATURE"),
}
}
// includePermissionsFlag returns the --include-permissions flag taken by the
// generate and freshen subcommands.
func includePermissionsFlag() *cli.BoolFlag {
return &cli.BoolFlag{
Name: flagIncludePermissions,
Usage: "Record each file's permission bits in manifest " +
"(recorded as 0000 by default)",
}
}
func (mfa *CLIApp) generateCommand() *cli.Command {
return &cli.Command{
Name: cmdGenerate,
Aliases: []string{"gen"},
Usage: "Generate manifest file",
ArgsUsage: "[path ...]",
StopOnNthArg: stopOnFirstArg(),
Action: func(ctx context.Context, cmd *cli.Command) error {
mfa.setVerbosity(cmd)
Name: cmdGenerate,
Aliases: []string{"gen"},
Usage: "Generate manifest file",
ArgsUsage: "[path ...]",
Action: func(c *cli.Context) error {
mfa.setVerbosity(c)
mfa.printBanner()
return mfa.generateManifestOperation(ctx, cmd)
return mfa.generateManifestOperation(c)
},
Flags: append(commonFlags(),
&cli.BoolFlag{
@@ -224,34 +186,32 @@ func (mfa *CLIApp) generateCommand() *cli.Command {
Name: "sign-key",
Aliases: []string{"s"},
Usage: "GPG key ID to sign the manifest with",
Sources: cli.EnvVars("MFER_SIGN_KEY"),
EnvVars: []string{"MFER_SIGN_KEY"},
},
&cli.StringFlag{
Name: "seed",
Usage: "Seed value for deterministic manifest UUID",
Sources: cli.EnvVars("MFER_SEED"),
EnvVars: []string{"MFER_SEED"},
},
&cli.BoolFlag{
Name: "include-timestamps",
Usage: "Include createdAt timestamp in manifest " +
"(omitted by default for determinism)",
},
includePermissionsFlag(),
),
}
}
func (mfa *CLIApp) checkCommand() *cli.Command {
return &cli.Command{
Name: cmdCheck,
Usage: "Validate files using manifest file",
ArgsUsage: manifestArgsUsage,
StopOnNthArg: stopOnFirstArg(),
Action: func(ctx context.Context, cmd *cli.Command) error {
mfa.setVerbosity(cmd)
Name: cmdCheck,
Usage: "Validate files using manifest file",
ArgsUsage: manifestArgsUsage,
Action: func(c *cli.Context) error {
mfa.setVerbosity(c)
mfa.printBanner()
return mfa.checkManifestOperation(ctx, cmd)
return mfa.checkManifestOperation(c)
},
Flags: append(commonFlags(),
&cli.StringFlag{
@@ -267,24 +227,28 @@ func (mfa *CLIApp) checkCommand() *cli.Command {
},
&cli.BoolFlag{
Name: "no-extra-files",
Usage: "Fail, instead of warning, if files in base directory are not in manifest",
Usage: "Fail if files exist in base directory that are not in manifest",
},
&cli.StringFlag{
Name: "require-signature",
Aliases: []string{"S"},
Usage: "Require manifest to be signed by the specified GPG key ID",
EnvVars: []string{"MFER_REQUIRE_SIGNATURE"},
},
requireSignatureFlag(),
),
}
}
func (mfa *CLIApp) freshenCommand() *cli.Command {
return &cli.Command{
Name: cmdFreshen,
Usage: "Update manifest with changed, new, and removed files",
ArgsUsage: manifestArgsUsage,
StopOnNthArg: stopOnFirstArg(),
Action: func(ctx context.Context, cmd *cli.Command) error {
mfa.setVerbosity(cmd)
Name: cmdFreshen,
Usage: "Update manifest with changed, new, and removed files",
ArgsUsage: manifestArgsUsage,
Action: func(c *cli.Context) error {
mfa.setVerbosity(c)
mfa.printBanner()
return mfa.freshenManifestOperation(ctx, cmd)
return mfa.freshenManifestOperation(c)
},
Flags: append(commonFlags(),
&cli.StringFlag{
@@ -313,38 +277,35 @@ func (mfa *CLIApp) freshenCommand() *cli.Command {
Name: "sign-key",
Aliases: []string{"s"},
Usage: "GPG key ID to sign the manifest with",
Sources: cli.EnvVars("MFER_SIGN_KEY"),
EnvVars: []string{"MFER_SIGN_KEY"},
},
&cli.BoolFlag{
Name: "include-timestamps",
Usage: "Include createdAt timestamp in manifest " +
"(omitted by default for determinism)",
},
includePermissionsFlag(),
),
}
}
func (mfa *CLIApp) exportCommand() *cli.Command {
return &cli.Command{
Name: cmdExport,
Usage: "Export manifest contents as JSON",
ArgsUsage: "[manifest file or URL]",
StopOnNthArg: stopOnFirstArg(),
Action: func(ctx context.Context, cmd *cli.Command) error {
mfa.setVerbosity(cmd)
Name: cmdExport,
Usage: "Export manifest contents as JSON",
ArgsUsage: "[manifest file or URL]",
Action: func(c *cli.Context) error {
mfa.setVerbosity(c)
return mfa.exportManifestOperation(ctx, cmd)
return mfa.exportManifestOperation(c)
},
}
}
func (mfa *CLIApp) versionCommand() *cli.Command {
return &cli.Command{
Name: cmdVersion,
Usage: "Show version",
StopOnNthArg: stopOnFirstArg(),
Action: func(context.Context, *cli.Command) error {
Name: cmdVersion,
Usage: "Show version",
Action: func(_ *cli.Context) error {
mfa.printVersion()
return nil
@@ -354,17 +315,18 @@ func (mfa *CLIApp) versionCommand() *cli.Command {
func (mfa *CLIApp) listCommand() *cli.Command {
return &cli.Command{
Name: cmdList,
Aliases: []string{"ls"},
Usage: "List files in manifest",
ArgsUsage: manifestArgsUsage,
StopOnNthArg: stopOnFirstArg(),
Action: mfa.listManifestOperation,
Name: "list",
Aliases: []string{"ls"},
Usage: "List files in manifest",
ArgsUsage: manifestArgsUsage,
Action: func(c *cli.Context) error {
return mfa.listManifestOperation(c)
},
Flags: []cli.Flag{
&cli.BoolFlag{
Name: "long",
Aliases: []string{"l"},
Usage: "Show mode, size and mtime",
Usage: "Show size and mtime",
},
&cli.BoolFlag{
Name: "print0",
@@ -376,15 +338,14 @@ func (mfa *CLIApp) listCommand() *cli.Command {
func (mfa *CLIApp) fetchCommand() *cli.Command {
return &cli.Command{
Name: cmdFetch,
Usage: "fetch manifest and referenced files",
ArgsUsage: "URL",
StopOnNthArg: stopOnFirstArg(),
Action: func(ctx context.Context, cmd *cli.Command) error {
mfa.setVerbosity(cmd)
Name: cmdFetch,
Usage: "fetch manifest and referenced files",
ArgsUsage: "URL",
Action: func(c *cli.Context) error {
mfa.setVerbosity(c)
mfa.printBanner()
return mfa.fetchManifestOperation(ctx, cmd)
return mfa.fetchManifestOperation(c)
},
Flags: append(commonFlags(),
&cli.DurationFlag{
@@ -393,13 +354,6 @@ func (mfa *CLIApp) fetchCommand() *cli.Command {
Usage: "Time limit for each HTTP request, including the download " +
"of its body",
},
&cli.StringFlag{
Name: flagDest,
Aliases: []string{"d"},
Value: ".",
Usage: "Directory to download the files and the manifest into",
},
requireSignatureFlag(),
),
}
}
@@ -416,40 +370,38 @@ func (mfa *CLIApp) run(args []string) {
log.SetOutput(mfa.Stdout, mfa.Stderr)
log.Init()
// -v means verbose, not version, at the root as on the generate, check,
// freshen and fetch subcommands: verbose is the more common meaning of -v
// in tools that offer both. urfave/cli's built-in version flag claims -v
// by default, so the version flag takes the capital -V instead.
// -v means verbose, not version. urfave/cli's built-in version flag
// claims -v by default, which made "mfer -v --version" fail to parse and
// gave -v a different meaning at the root than on the generate, check,
// freshen and fetch subcommands, where it means verbose. Verbose is the
// more common meaning of -v in tools that offer both, so -v means verbose
// at the root too and the version flag takes the capital -V.
// VersionFlag and VersionPrinter are urfave/cli package globals; run() is
// serialized in tests, so assigning them here is safe.
cli.VersionFlag = &cli.BoolFlag{
Name: cmdVersion,
Aliases: []string{"V"},
Usage: "print the version",
Local: true,
}
cli.VersionPrinter = func(*cli.Command) { mfa.printVersion() }
cli.VersionPrinter = func(_ *cli.Context) { mfa.printVersion() }
mfa.app = &cli.Command{
Name: mfa.appname,
Usage: "Manifest generator",
Version: mfa.VersionString(),
EnableShellCompletion: true,
Writer: mfa.Stdout,
// v3 writes its "Incorrect Usage" line to ErrWriter; v2 wrote it to
// stdout, before the help, so it stays on stdout.
ErrWriter: mfa.Stdout,
Flags: commonFlags(),
StopOnNthArg: stopOnFirstArg(),
Action: func(_ context.Context, cmd *cli.Command) error {
if cmd.Args().Len() > 0 {
return fmt.Errorf("%w %q", errUnknownCommand, cmd.Args().First())
mfa.app = &cli.App{
Name: mfa.appname,
Usage: "Manifest generator",
Version: mfa.VersionString(),
EnableBashCompletion: true,
Writer: mfa.Stdout,
ErrWriter: mfa.Stderr,
Flags: commonFlags(),
Action: func(c *cli.Context) error {
if c.Args().Len() > 0 {
return fmt.Errorf("%w %q", errUnknownCommand, c.Args().First())
}
mfa.setVerbosity(cmd)
mfa.setVerbosity(c)
mfa.printBanner()
return cli.ShowRootCommandHelp(cmd)
return cli.ShowAppHelp(c)
},
Commands: []*cli.Command{
mfa.generateCommand(),
@@ -464,7 +416,7 @@ func (mfa *CLIApp) run(args []string) {
mfa.app.HideVersion = false
err := mfa.app.Run(context.Background(), args)
err := mfa.app.Run(args)
if err != nil {
mfa.exitCode = 1
internal/cli/testdata/seeded.mf
Vendored
BIN
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Binary file not shown.
internal/log/log.go
+55 -149
View File
@@ -1,25 +1,19 @@
// Package log provides leveled logging on top of log/slog, and helpers that
// print progress lines which overwrite each other in place on a terminal.
//
// Until Init runs, log records go to slog.Default(), so a program that uses
// package mfer as a library gets them wherever it sends its own slog output.
// Init switches to the CLI's format on the stderr writer given to SetOutput.
// Progress lines are not log records: they are written straight to the stdout
// writer, never through slog.
// Package log provides leveled logging with progress output helpers
// on top of apex/log and pterm.
package log
import (
"context"
"fmt"
"io"
"log/slog"
"os"
"path/filepath"
"runtime"
"sync"
"github.com/apex/log"
acli "github.com/apex/log/handlers/cli"
"github.com/davecgh/go-spew/spew"
"golang.org/x/term"
"github.com/pterm/pterm"
)
// Level represents log severity levels.
@@ -64,98 +58,28 @@ func (l Level) String() string {
// helpers to the caller of the log package.
const callerSkip = 2
// Escape sequences for colored log lines.
const (
ansiReset = "\x1b[0m"
ansiBold = "\x1b[1m"
ansiRed = "\x1b[31m"
ansiYellow = "\x1b[33m"
ansiBlue = "\x1b[34m"
ansiWhite = "\x1b[37m"
)
//nolint:gochecknoglobals // package-level logger state by design
var (
// mu protects the variables below
// mu protects the output writers and level
mu sync.RWMutex
// stdout is the writer for progress output
stdout io.Writer = os.Stdout
// stderr is the writer for log output
stderr io.Writer = os.Stderr
// styled is false once DisableStyling has been called
styled = true
// logger is the CLI logger Init builds; nil until Init runs
logger *slog.Logger
// currentLevel is our log level (includes Verbose)
currentLevel = InfoLevel
)
// cliHandler is the slog.Handler the CLI logs through. Each record is one
// line: a symbol for its level right-aligned in four columns, then the
// message padded to 25 columns. In color, only the symbol is bold and in the
// level's color; the message is in the terminal's default color. Records are
// filtered by level before they are made, so the handler takes every record
// it is given.
type cliHandler struct {
mu sync.Mutex
w io.Writer
color bool
}
// Enabled reports true for every level.
func (h *cliHandler) Enabled(context.Context, slog.Level) bool {
return true
}
// Handle writes the record as one line.
func (h *cliHandler) Handle(_ context.Context, r slog.Record) error {
symbol, color := "•", ansiBlue
switch {
case r.Level >= slog.LevelError:
symbol, color = "⨯", ansiRed
case r.Level >= slog.LevelWarn:
color = ansiYellow
case r.Level < slog.LevelInfo:
color = ansiWhite
}
h.mu.Lock()
defer h.mu.Unlock()
if !h.color {
_, err := fmt.Fprintf(h.w, "%4s %-25s\n", symbol, r.Message)
return err
}
_, err := fmt.Fprintf(h.w, "%s%s%4s%s %-25s%s\n",
color, ansiBold, symbol, ansiReset, r.Message, ansiReset)
return err
}
// WithAttrs returns the handler unchanged: this package's helpers never
// attach attributes.
func (h *cliHandler) WithAttrs([]slog.Attr) slog.Handler {
return h
}
// WithGroup returns the handler unchanged: this package's helpers never open
// groups.
func (h *cliHandler) WithGroup(string) slog.Handler {
return h
}
// SetOutput configures the output writers for the log package.
// stdout is used for progress output, stderr is used for log messages
// from the next Init on.
// stdout is used for progress output, stderr is used for log messages.
func SetOutput(out, err io.Writer) {
mu.Lock()
defer mu.Unlock()
stdout = out
stderr = err
pterm.SetDefaultOutput(out)
}
// GetStdout returns the configured stdout writer.
@@ -174,29 +98,31 @@ func GetStderr() io.Writer {
return stderr
}
// DisableStyling turns off colors in log lines from the next Init on.
// DisableStyling turns off colors and styling for terminal output.
func DisableStyling() {
mu.Lock()
defer mu.Unlock()
pterm.DisableColor()
pterm.DisableStyling()
styled = false
pterm.Debug.Prefix.Text = ""
pterm.Info.Prefix.Text = ""
pterm.Success.Prefix.Text = ""
pterm.Warning.Prefix.Text = ""
pterm.Error.Prefix.Text = ""
pterm.Fatal.Prefix.Text = ""
}
// Init sends log records to the CLI handler on the stderr writer given to
// SetOutput. Log lines are colored when stdout is a terminal whose TERM is
// not dumb, unless DisableStyling has been called.
// Init initializes the logger with the CLI handler and default log level.
//
// It replaces the logger under the write lock, and log calls hold the read
// lock while they write, so once Init returns nothing writes through the
// logger it replaced.
// It reconfigures the process-global apex/log logger under the write lock so
// the global is never mutated while another goroutine holds the read lock to
// read it in emit. Without this, parallel callers (e.g. the test suite) race
// Init's SetLevel/SetHandler against concurrent log calls.
func Init() {
mu.Lock()
defer mu.Unlock()
color := styled && os.Getenv("TERM") != "dumb" &&
term.IsTerminal(int(os.Stdout.Fd()))
logger = slog.New(&cliHandler{w: stderr, color: color})
log.SetHandler(acli.New(stderr))
log.SetLevel(log.DebugLevel) // Let apex/log pass everything; we filter ourselves
}
// isEnabled returns true if messages at the given level should be logged.
@@ -207,87 +133,66 @@ func isEnabled(l Level) bool {
return l >= currentLevel
}
// logf logs a formatted message at level l if messages at l are enabled,
// holding the read lock while the record is written. slog has no verbose or
// fatal level: verbose messages are logged as info records, and fatal
// messages as error records.
func logf(l Level, format string, args ...any) {
// emit calls fn while holding the read lock if messages at level l are
// enabled. Holding the read lock across the apex/log call keeps the global
// logger from being read while Init reconfigures it under the write lock.
func emit(l Level, fn func()) {
mu.RLock()
defer mu.RUnlock()
if l < currentLevel {
return
}
lg := logger
if lg == nil {
lg = slog.Default()
}
msg := fmt.Sprintf(format, args...)
switch l {
case DebugLevel:
lg.Debug(msg)
case VerboseLevel, InfoLevel:
lg.Info(msg)
case WarnLevel:
lg.Warn(msg)
case ErrorLevel, FatalLevel:
lg.Error(msg)
if l >= currentLevel {
fn()
}
}
// Fatalf logs a formatted message at fatal level, then exits with status 1.
// Fatalf logs a formatted message at fatal level.
func Fatalf(format string, args ...any) {
logf(FatalLevel, format, args...)
os.Exit(1)
emit(FatalLevel, func() { log.Fatalf(format, args...) })
}
// Fatal logs a message at fatal level, then exits with status 1.
// Fatal logs a message at fatal level.
func Fatal(arg string) {
logf(FatalLevel, "%s", arg)
os.Exit(1)
emit(FatalLevel, func() { log.Fatal(arg) })
}
// Errorf logs a formatted message at error level.
func Errorf(format string, args ...any) {
logf(ErrorLevel, format, args...)
emit(ErrorLevel, func() { log.Errorf(format, args...) })
}
// Error logs a message at error level.
func Error(arg string) {
logf(ErrorLevel, "%s", arg)
emit(ErrorLevel, func() { log.Error(arg) })
}
// Warnf logs a formatted message at warn level.
func Warnf(format string, args ...any) {
logf(WarnLevel, format, args...)
emit(WarnLevel, func() { log.Warnf(format, args...) })
}
// Warn logs a message at warn level.
func Warn(arg string) {
logf(WarnLevel, "%s", arg)
emit(WarnLevel, func() { log.Warn(arg) })
}
// Infof logs a formatted message at info level.
func Infof(format string, args ...any) {
logf(InfoLevel, format, args...)
emit(InfoLevel, func() { log.Infof(format, args...) })
}
// Info logs a message at info level.
func Info(arg string) {
logf(InfoLevel, "%s", arg)
emit(InfoLevel, func() { log.Info(arg) })
}
// Verbosef logs a formatted message at verbose level.
func Verbosef(format string, args ...any) {
logf(VerboseLevel, format, args...)
emit(VerboseLevel, func() { log.Infof(format, args...) })
}
// Verbose logs a message at verbose level.
func Verbose(arg string) {
logf(VerboseLevel, "%s", arg)
emit(VerboseLevel, func() { log.Info(arg) })
}
// Debugf logs a formatted message at debug level with caller location.
@@ -306,12 +211,20 @@ func Debug(arg string) {
// DebugReal logs at debug level with caller info from the specified stack depth.
func DebugReal(arg string, cs int) {
mu.RLock()
defer mu.RUnlock()
if DebugLevel < currentLevel {
return
}
_, callerFile, callerLine, ok := runtime.Caller(cs)
if !ok {
return
}
logf(DebugLevel, "%s:%d: %s", filepath.Base(callerFile), callerLine, arg)
tag := fmt.Sprintf("%s:%d: ", filepath.Base(callerFile), callerLine)
log.Debug(tag + arg)
}
// Dump logs a spew dump of the arguments at debug level.
@@ -362,19 +275,12 @@ func GetLevel() Level {
// Progressf prints a progress message that overwrites the current line.
// Use ProgressDone() when progress is complete to move to the next line.
// Progress goes to the stdout writer whatever the log level.
func Progressf(format string, args ...any) {
mu.Lock()
defer mu.Unlock()
_, _ = fmt.Fprintf(stdout, "\r"+format, args...)
pterm.Printf("\r"+format, args...)
}
// ProgressDone clears the progress line when progress is complete.
func ProgressDone() {
mu.Lock()
defer mu.Unlock()
// Return to the start of the line and erase it
_, _ = fmt.Fprint(stdout, "\r\033[K")
// Clear the line with spaces and return to beginning
pterm.Print("\r\033[K")
}
internal/log/log_test.go
+3 -220
View File
@@ -1,229 +1,12 @@
//nolint:testpackage // white-box tests exercise unexported internals
package log
package log_test
import (
"bytes"
stdlog "log"
"log/slog"
"os"
"testing"
"github.com/stretchr/testify/assert"
"sneak.berlin/go/mfer/internal/log"
)
func TestBuild(t *testing.T) {
t.Parallel()
Init()
}
// capture points the package's writers at fresh buffers and sets its level,
// with colors off, then restores the default writers and level when the test
// ends. The state it changes is process-wide, so tests that use it do not
// run in parallel.
func capture(t *testing.T, l Level) (*bytes.Buffer, *bytes.Buffer) {
t.Helper()
var stdout, stderr bytes.Buffer
DisableStyling()
SetOutput(&stdout, &stderr)
SetLevel(l)
Init()
t.Cleanup(func() {
SetOutput(os.Stdout, os.Stderr)
SetLevel(InfoLevel)
Init()
})
return &stdout, &stderr
}
// TestLevelFiltering logs at every level, through both the plain and the
// formatting helpers, and checks that exactly the messages at or above the
// set level are written.
//
//nolint:paralleltest // changes the package's process-wide writers and level
func TestLevelFiltering(t *testing.T) {
messages := []struct {
level Level
text string
}{
{DebugLevel, "debug plain"},
{DebugLevel, "debug formatted"},
{VerboseLevel, "verbose plain"},
{VerboseLevel, "verbose formatted"},
{InfoLevel, "info plain"},
{InfoLevel, "info formatted"},
{WarnLevel, "warn plain"},
{WarnLevel, "warn formatted"},
{ErrorLevel, "error plain"},
{ErrorLevel, "error formatted"},
}
levels := []Level{DebugLevel, VerboseLevel, InfoLevel, WarnLevel, ErrorLevel}
for _, set := range levels {
t.Run(set.String(), func(t *testing.T) {
stdout, stderr := capture(t, set)
Debug("debug plain")
Debugf("debug %s", "formatted")
Verbose("verbose plain")
Verbosef("verbose %s", "formatted")
Info("info plain")
Infof("info %s", "formatted")
Warn("warn plain")
Warnf("warn %s", "formatted")
Error("error plain")
Errorf("error %s", "formatted")
for _, m := range messages {
if m.level >= set {
assert.Contains(t, stderr.String(), m.text)
} else {
assert.NotContains(t, stderr.String(), m.text)
}
}
assert.Empty(t, stdout.String())
})
}
}
// TestLineFormat checks the exact uncolored lines: a symbol per level
// right-aligned in four columns, then the message padded to 25 columns.
//
//nolint:paralleltest // changes the package's process-wide writers and level
func TestLineFormat(t *testing.T) {
_, stderr := capture(t, VerboseLevel)
Infof("scanning filesystem...")
Verbosef("+ %s (%s)", "a.txt", "1 B")
Warn("short")
Errorf("%s", "a message longer than twenty-five columns")
want := " • scanning filesystem... \n" +
" • + a.txt (1 B) \n" +
" • short \n" +
" ⨯ a message longer than twenty-five columns\n"
assert.Equal(t, want, stderr.String())
}
// TestDebugCallerTag checks that debug lines start with the file and line
// of the call that logged them.
//
//nolint:paralleltest // changes the package's process-wide writers and level
func TestDebugCallerTag(t *testing.T) {
_, stderr := capture(t, DebugLevel)
Debugf("enumerating path: %s", "/tmp")
assert.Regexp(t, `^ • log_test\.go:\d+: enumerating path: /tmp\s*\n$`,
stderr.String())
}
// TestColoredLine checks the colored lines: only the symbol is bold and in the
// level's color; the message is in the terminal's default color.
func TestColoredLine(t *testing.T) {
t.Parallel()
var buf bytes.Buffer
lg := slog.New(&cliHandler{w: &buf, color: true})
lg.Debug("debug")
lg.Info("info")
lg.Warn("warn")
lg.Error("error")
want := "\x1b[37m\x1b[1m •\x1b[0m debug \x1b[0m\n" +
"\x1b[34m\x1b[1m •\x1b[0m info \x1b[0m\n" +
"\x1b[33m\x1b[1m •\x1b[0m warn \x1b[0m\n" +
"\x1b[31m\x1b[1m ⨯\x1b[0m error \x1b[0m\n"
assert.Equal(t, want, buf.String())
}
// TestRecordLevels checks the slog level of the record each helper logs,
// through slog's text handler with the time left out. slog has no verbose
// level, so verbose messages are info records.
//
//nolint:paralleltest // changes the package's process-wide logger and level
func TestRecordLevels(t *testing.T) {
var buf bytes.Buffer
capture(t, DebugLevel)
opts := &slog.HandlerOptions{
Level: slog.LevelDebug,
ReplaceAttr: func(_ []string, a slog.Attr) slog.Attr {
if a.Key == slog.TimeKey {
return slog.Attr{}
}
return a
},
}
mu.Lock()
logger = slog.New(slog.NewTextHandler(&buf, opts))
mu.Unlock()
Debugf("debug")
Verbosef("verbose")
Infof("info")
Warnf("warn")
Errorf("error")
assert.Regexp(t, `^level=DEBUG msg="log_test\.go:\d+: debug"\n`+
"level=INFO msg=verbose\n"+
"level=INFO msg=info\n"+
"level=WARN msg=warn\n"+
"level=ERROR msg=error\n$", buf.String())
}
// TestProgress checks that progress lines go to the stdout writer whatever
// the log level, each starting with a carriage return so it overwrites the
// last, and that ProgressDone erases the line.
//
//nolint:paralleltest // changes the package's process-wide writers and level
func TestProgress(t *testing.T) {
stdout, stderr := capture(t, ErrorLevel)
Progressf("Scanning: %d files found", 1000)
Progressf("Scanning: %d files found", 2000)
ProgressDone()
assert.Equal(t,
"\rScanning: 1000 files found\rScanning: 2000 files found\r\x1b[K",
stdout.String())
assert.Empty(t, stderr.String())
}
// TestBeforeInit checks that records go to slog.Default() until Init runs,
// still filtered by the package's level. slog's default handler writes
// through the standard library's log package.
//
//nolint:paralleltest // changes the package's process-wide logger
func TestBeforeInit(t *testing.T) {
var buf bytes.Buffer
flags := stdlog.Flags()
stdlog.SetOutput(&buf)
stdlog.SetFlags(0)
mu.Lock()
logger = nil
mu.Unlock()
t.Cleanup(func() {
stdlog.SetOutput(os.Stderr)
stdlog.SetFlags(flags)
Init()
})
Infof("loaded manifest with %d files", 3)
Verbose("not shown at info level")
assert.Equal(t, "INFO loaded manifest with 3 files\n", buf.String())
log.Init()
}
mfer/builder.go
-7
View File
@@ -8,7 +8,6 @@ import (
"errors"
"fmt"
"io"
"io/fs"
"sort"
"strings"
"sync"
@@ -138,14 +137,12 @@ func (b *Builder) SetSeed(seed string) {
}
// AddFile reads file content from reader, computes hashes, and adds to manifest.
// Only mode's permission bits (mode.Perm()) are recorded; 0 records none.
// Progress updates are sent to the progress channel (if non-nil) without blocking.
// Returns the number of bytes read.
func (b *Builder) AddFile(
path RelFilePath,
size FileSize,
mtime ModTime,
mode fs.FileMode,
reader io.Reader,
progress chan<- FileHashProgress,
) (FileSize, error) {
@@ -201,7 +198,6 @@ func (b *Builder) AddFile(
{MultiHash: mh},
},
Mtime: mtime.Timestamp(),
Mode: uint32(mode.Perm()),
}
b.mu.Lock()
@@ -233,14 +229,12 @@ func (b *Builder) FileCount() int {
// AddFileWithHash adds a file entry with a pre-computed hash.
// This is useful when the hash is already known (e.g., from an existing manifest).
// Only mode's permission bits (mode.Perm()) are recorded; 0 records none.
// Returns an error if path is invalid, size is negative, or hash is not a
// multihash with a digest of at least 32 bytes, as long as SHA-256's.
func (b *Builder) AddFileWithHash(
path RelFilePath,
size FileSize,
mtime ModTime,
mode fs.FileMode,
hash Multihash,
) error {
err := ValidatePath(string(path))
@@ -274,7 +268,6 @@ func (b *Builder) AddFileWithHash(
{MultiHash: hash},
},
Mtime: mtime.Timestamp(),
Mode: uint32(mode.Perm()),
}
b.mu.Lock()
mfer/builder_test.go
+18 -18
View File
@@ -35,7 +35,7 @@ func TestBuilderAddFile(t *testing.T) {
reader := bytes.NewReader(content)
bytesRead, err := b.AddFile(
"test.txt", FileSize(len(content)), ModTime(time.Now()), 0, reader, nil,
"test.txt", FileSize(len(content)), ModTime(time.Now()), reader, nil,
)
require.NoError(t, err)
assert.Equal(t, FileSize(len(content)), bytesRead)
@@ -49,7 +49,7 @@ func TestBuilderAddFileWithHash(t *testing.T) {
hash, err := multihash.Encode(make([]byte, sha256.Size), multihash.SHA2_256)
require.NoError(t, err)
err = b.AddFileWithHash("test.txt", 100, ModTime(time.Now()), 0, hash)
err = b.AddFileWithHash("test.txt", 100, ModTime(time.Now()), hash)
require.NoError(t, err)
assert.Equal(t, 1, b.FileCount())
}
@@ -64,7 +64,7 @@ func TestBuilderAddFileWithHashValidation(t *testing.T) {
t.Parallel()
b := NewBuilder()
err := b.AddFileWithHash("", 100, ModTime(time.Now()), 0, sha256Hash)
err := b.AddFileWithHash("", 100, ModTime(time.Now()), sha256Hash)
require.Error(t, err)
assert.Contains(t, err.Error(), "path")
})
@@ -73,7 +73,7 @@ func TestBuilderAddFileWithHashValidation(t *testing.T) {
t.Parallel()
b := NewBuilder()
err := b.AddFileWithHash("test.txt", -1, ModTime(time.Now()), 0, sha256Hash)
err := b.AddFileWithHash("test.txt", -1, ModTime(time.Now()), sha256Hash)
require.Error(t, err)
assert.Contains(t, err.Error(), "size")
})
@@ -82,7 +82,7 @@ func TestBuilderAddFileWithHashValidation(t *testing.T) {
t.Parallel()
b := NewBuilder()
err := b.AddFileWithHash("test.txt", 100, ModTime(time.Now()), 0, sha256Hash)
err := b.AddFileWithHash("test.txt", 100, ModTime(time.Now()), sha256Hash)
require.NoError(t, err)
assert.Equal(t, 1, b.FileCount())
})
@@ -118,7 +118,7 @@ func TestBuilderAddFileWithHashRejectsBadHashes(t *testing.T) {
t.Parallel()
b := NewBuilder()
err := b.AddFileWithHash("test.txt", 100, ModTime(time.Now()), 0, tt.hash)
err := b.AddFileWithHash("test.txt", 100, ModTime(time.Now()), tt.hash)
require.ErrorIs(t, err, tt.want)
assert.Equal(t, 0, b.FileCount())
})
@@ -133,7 +133,7 @@ func TestBuilderBuild(t *testing.T) {
reader := bytes.NewReader(content)
_, err := b.AddFile(
"test.txt", FileSize(len(content)), ModTime(time.Now()), 0, reader, nil,
"test.txt", FileSize(len(content)), ModTime(time.Now()), reader, nil,
)
require.NoError(t, err)
@@ -196,7 +196,7 @@ func TestBuilderDeterministicOutput(t *testing.T) {
for _, f := range files {
r := bytes.NewReader([]byte(f.content))
_, err := b.AddFile(
RelFilePath(f.path), FileSize(len(f.content)), mtime, 0, r, nil,
RelFilePath(f.path), FileSize(len(f.content)), mtime, r, nil,
)
require.NoError(t, err)
}
@@ -279,7 +279,7 @@ func TestBuilderAddFileSizeMismatch(t *testing.T) {
reader := bytes.NewReader(content)
// Declare wrong size
_, err := b.AddFile("test.txt", FileSize(100), ModTime(time.Now()), 0, reader, nil)
_, err := b.AddFile("test.txt", FileSize(100), ModTime(time.Now()), reader, nil)
require.Error(t, err)
assert.Contains(t, err.Error(), "size mismatch")
}
@@ -291,12 +291,12 @@ func TestBuilderAddFileInvalidPath(t *testing.T) {
content := []byte("data")
reader := bytes.NewReader(content)
_, err := b.AddFile("", FileSize(len(content)), ModTime(time.Now()), 0, reader, nil)
_, err := b.AddFile("", FileSize(len(content)), ModTime(time.Now()), reader, nil)
require.Error(t, err)
reader.Reset(content)
_, err = b.AddFile(
"/absolute", FileSize(len(content)), ModTime(time.Now()), 0, reader, nil,
"/absolute", FileSize(len(content)), ModTime(time.Now()), reader, nil,
)
assert.Error(t, err)
}
@@ -310,7 +310,7 @@ func TestBuilderAddFileWithProgress(t *testing.T) {
progress := make(chan FileHashProgress, 100)
bytesRead, err := b.AddFile(
"test.txt", FileSize(len(content)), ModTime(time.Now()), 0, reader, progress,
"test.txt", FileSize(len(content)), ModTime(time.Now()), reader, progress,
)
close(progress)
require.NoError(t, err)
@@ -345,7 +345,7 @@ func TestBuilderBuildRoundTrip(t *testing.T) {
for _, f := range files {
reader := bytes.NewReader(f.content)
_, err := b.AddFile(
RelFilePath(f.path), FileSize(len(f.content)), ModTime(now), 0, reader, nil,
RelFilePath(f.path), FileSize(len(f.content)), ModTime(now), reader, nil,
)
require.NoError(t, err)
}
@@ -387,7 +387,7 @@ func TestBuilderBuildRoundTripLargeManifest(t *testing.T) {
for i := range 4000 {
path := RelFilePath(fmt.Sprintf("dir/file-%05d.txt", i))
require.NoError(t, b.AddFileWithHash(path, FileSize(i), ModTime{}, 0, hash))
require.NoError(t, b.AddFileWithHash(path, FileSize(i), ModTime{}, hash))
}
var buf bytes.Buffer
@@ -452,7 +452,7 @@ func TestManifestString(t *testing.T) {
content := []byte("test")
reader := bytes.NewReader(content)
_, err := b.AddFile(
"test.txt", FileSize(len(content)), ModTime(time.Now()), 0, reader, nil,
"test.txt", FileSize(len(content)), ModTime(time.Now()), reader, nil,
)
require.NoError(t, err)
@@ -484,7 +484,7 @@ func TestBuilderOmitsCreatedAtByDefault(t *testing.T) {
b := NewBuilder()
content := []byte("hello")
_, err := b.AddFile(
"test.txt", FileSize(len(content)), ModTime(time.Now()), 0,
"test.txt", FileSize(len(content)), ModTime(time.Now()),
bytes.NewReader(content), nil,
)
require.NoError(t, err)
@@ -506,7 +506,7 @@ func TestBuilderIncludesCreatedAtWhenRequested(t *testing.T) {
content := []byte("hello")
_, err := b.AddFile(
"test.txt", FileSize(len(content)), ModTime(time.Now()), 0,
"test.txt", FileSize(len(content)), ModTime(time.Now()),
bytes.NewReader(content), nil,
)
require.NoError(t, err)
@@ -532,7 +532,7 @@ func TestBuilderDeterministicFileOrder(t *testing.T) {
content := []byte("content of " + name)
_, err := b.AddFile(
RelFilePath(name), FileSize(len(content)),
ModTime(time.Unix(1000, 0)), 0, bytes.NewReader(content), nil,
ModTime(time.Unix(1000, 0)), bytes.NewReader(content), nil,
)
require.NoError(t, err)
}
mfer/checker.go
+38 -67
View File
@@ -36,7 +36,6 @@ const (
StatusMissing // File not found on disk
StatusSizeMismatch // File size differs from manifest
StatusHashMismatch // File hash differs from manifest
StatusModeMismatch // File permission bits differ from a recorded mode
StatusExtra // File exists on disk but not in manifest
StatusError // Error occurred during verification
)
@@ -51,8 +50,6 @@ func (s Status) String() string {
return "SIZE_MISMATCH"
case StatusHashMismatch:
return "HASH_MISMATCH"
case StatusModeMismatch:
return "MODE_MISMATCH"
case StatusExtra:
return "EXTRA"
case StatusError:
@@ -80,9 +77,9 @@ type Checker struct {
fs afero.Fs
// manifestPaths is a set of paths in the manifest for quick lookup
manifestPaths map[RelFilePath]struct{}
// manifestInfo is the manifest file, which FindExtraFiles leaves out,
// matched with os.SameFile.
manifestInfo os.FileInfo
// manifestRelPath is the relative path of the manifest file from
// basePath (for exclusion)
manifestRelPath RelFilePath
// signature info from the manifest
signature []byte
signer []byte
@@ -136,20 +133,26 @@ func NewChecker(opts *CheckerOptions) (*Checker, error) {
manifestPaths[RelFilePath(f.GetPath())] = struct{}{}
}
manifestInfo, err := fs.Stat(opts.ManifestPath)
// Compute manifest's relative path from basePath for exclusion in FindExtraFiles
absManifest, err := filepath.Abs(opts.ManifestPath)
if err != nil {
return nil, err
}
manifestRel, err := filepath.Rel(abs, absManifest)
if err != nil {
manifestRel = ""
}
return &Checker{
basePath: AbsFilePath(abs),
files: files,
fs: fs,
manifestPaths: manifestPaths,
manifestInfo: manifestInfo,
signature: m.pbOuter.GetSignature(),
signer: m.pbOuter.GetSigner(),
signingPubKey: m.pbOuter.GetSigningPubKey(),
basePath: AbsFilePath(abs),
files: files,
fs: fs,
manifestPaths: manifestPaths,
manifestRelPath: RelFilePath(manifestRel),
signature: m.pbOuter.GetSignature(),
signer: m.pbOuter.GetSigner(),
signingPubKey: m.pbOuter.GetSigningPubKey(),
}, nil
}
@@ -270,27 +273,20 @@ func (c *Checker) Check(
return nil
}
// FindExtraFiles walks the filesystem and reports files not in the manifest,
// hidden files and directories included. The manifest file itself is not
// reported. Anything the search cannot read, such as a directory that cannot
// be listed, is reported with StatusError and the search goes on. Results are
// sent to the results channel. The channel is closed when done.
// FindExtraFiles walks the filesystem and reports files not in the manifest.
// Results are sent to the results channel. The channel is closed when done.
// Hidden files/directories (starting with .) are skipped, as they are excluded
// from manifests by default. The manifest file itself is also skipped.
func (c *Checker) FindExtraFiles(ctx context.Context, results chan<- Result) error {
if results != nil {
defer close(results)
}
// The search does not follow symlinks, so a base directory named
// through one is resolved first. If that fails, the base is searched as
// named and the search reports the problem.
root := string(c.basePath)
walkFn := func(walkPath string, info os.FileInfo, err error) error {
if err != nil {
return err
}
resolved, err := filepath.EvalSymlinks(root)
if err == nil {
root = resolved
}
walkFn := func(walkPath string, info os.FileInfo, walkErr error) error {
select {
case <-ctx.Done():
return ctx.Err()
@@ -298,22 +294,15 @@ func (c *Checker) FindExtraFiles(ctx context.Context, results chan<- Result) err
}
// Get relative path
rel, err := filepath.Rel(root, walkPath)
rel, err := filepath.Rel(string(c.basePath), walkPath)
if err != nil {
return err
}
relPath := RelFilePath(rel)
// Report what cannot be read, such as a directory that cannot be
// listed, and go on with the rest.
if walkErr != nil {
if results != nil {
results <- Result{
Path: relPath,
Status: StatusError,
Message: walkErr.Error(),
}
// Skip hidden files and directories (dotfiles)
if IsHiddenPath(filepath.ToSlash(rel)) {
if info.IsDir() {
return filepath.SkipDir
}
return nil
@@ -324,17 +313,10 @@ func (c *Checker) FindExtraFiles(ctx context.Context, results chan<- Result) err
return nil
}
// A symlink is compared by what it points to, so a manifest reached
// through one is not reported either.
if info.Mode()&os.ModeSymlink != 0 {
target, statErr := c.fs.Stat(walkPath)
if statErr == nil {
info = target
}
}
relPath := RelFilePath(rel)
// Skip the manifest file itself, however its path is spelled
if os.SameFile(info, c.manifestInfo) {
// Skip the manifest file itself
if relPath == c.manifestRelPath {
return nil
}
@@ -352,7 +334,7 @@ func (c *Checker) FindExtraFiles(ctx context.Context, results chan<- Result) err
return nil
}
return afero.Walk(c.fs, root, walkFn)
return afero.Walk(c.fs, string(c.basePath), walkFn)
}
func (c *Checker) checkFile(entry *MFFilePath, checkedBytes *FileSize) Result {
@@ -411,22 +393,11 @@ func (c *Checker) checkFile(entry *MFFilePath, checkedBytes *FileSize) Result {
return Result{Path: relPath, Status: StatusError, Message: err.Error()}
}
// Check against all hashes in manifest (at least one must match),
// then against the recorded mode, where one is: 0 means none was.
// Check against all hashes in manifest (at least one must match)
for _, hash := range entry.GetHashes() {
if !bytes.Equal(computed, hash.GetMultiHash()) {
continue
if bytes.Equal(computed, hash.GetMultiHash()) {
return Result{Path: relPath, Status: StatusOK}
}
if entry.GetMode() != 0 && info.Mode().Perm() != os.FileMode(entry.GetMode()) {
return Result{
Path: relPath,
Status: StatusModeMismatch,
Message: "mode mismatch",
}
}
return Result{Path: relPath, Status: StatusOK}
}
return Result{
mfer/checker_test.go
+99 -146
View File
@@ -21,6 +21,8 @@ const (
testExistsFile = "exists.txt"
testManifestPath = "/manifest.mf"
testDataDir = "/data"
// testDataManifestPath is a manifest kept inside the checked tree.
testDataManifestPath = testDataDir + "/index.mf"
)
func TestStatusString(t *testing.T) {
@@ -34,7 +36,6 @@ func TestStatusString(t *testing.T) {
{StatusMissing, "MISSING"},
{StatusSizeMismatch, "SIZE_MISMATCH"},
{StatusHashMismatch, "HASH_MISMATCH"},
{StatusModeMismatch, "MODE_MISMATCH"},
{StatusExtra, "EXTRA"},
{StatusError, "ERROR"},
{Status(99), "UNKNOWN"},
@@ -60,7 +61,7 @@ func createTestManifest(
for path, content := range files {
reader := bytes.NewReader(content)
_, err := builder.AddFile(
RelFilePath(path), FileSize(len(content)), ModTime(time.Now()), 0, reader, nil,
RelFilePath(path), FileSize(len(content)), ModTime(time.Now()), reader, nil,
)
require.NoError(t, err)
}
@@ -280,8 +281,7 @@ func TestCheckMissingFile(t *testing.T) {
missingCount++
assert.Equal(t, RelFilePath("missing.txt"), r.Path)
case StatusSizeMismatch, StatusHashMismatch, StatusModeMismatch,
StatusExtra, StatusError:
case StatusSizeMismatch, StatusHashMismatch, StatusExtra, StatusError:
// Not expected in this test; counted assertions below will fail.
}
}
@@ -351,54 +351,6 @@ func TestCheckHashMismatch(t *testing.T) {
assert.Equal(t, RelFilePath(testFileName), r.Path)
}
// A recorded mode other than 0000 that differs from the file's permission
// bits fails the check; a recorded 0000 is never checked.
func TestCheckMode(t *testing.T) {
t.Parallel()
for _, tc := range []struct {
name string
recorded os.FileMode
onDisk os.FileMode
want Status
}{
{"recorded mode matches", 0o640, 0o640, StatusOK},
{"recorded mode differs", 0o640, 0o600, StatusModeMismatch},
{"0000 is not checked", 0, 0o600, StatusOK},
} {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
fs := afero.NewMemMapFs()
content := []byte("content")
b := NewBuilder()
_, err := b.AddFile(testFileName, FileSize(len(content)), ModTime{},
tc.recorded, bytes.NewReader(content), nil)
require.NoError(t, err)
var buf bytes.Buffer
require.NoError(t, b.Build(context.Background(), &buf))
require.NoError(t, afero.WriteFile(fs, testManifestPath, buf.Bytes(), 0o644))
require.NoError(t, fs.MkdirAll(testDataDir, 0o755))
require.NoError(t, afero.WriteFile(fs,
testDataDir+"/"+testFileName, content, tc.onDisk))
chk, err := NewChecker(&CheckerOptions{
ManifestPath: testManifestPath,
BasePath: testDataDir,
Fs: fs,
})
require.NoError(t, err)
results := make(chan Result, 1)
require.NoError(t, chk.Check(context.Background(), results, nil))
assert.Equal(t, tc.want, (<-results).Status)
})
}
}
func TestCheckWithProgress(t *testing.T) {
t.Parallel()
@@ -507,120 +459,50 @@ func TestFindExtraFiles(t *testing.T) {
assert.Equal(t, "not in manifest", extras[0].Message)
}
// TestFindExtraFilesReportsHiddenFilesButNotManifest keeps the manifest
// inside the checked tree: hidden files and directories are reported, the
// manifest is not. The manifest is recognized by file identity, which needs
// the real filesystem.
func TestFindExtraFilesReportsHiddenFilesButNotManifest(t *testing.T) {
func TestFindExtraFilesSkipsManifestAndDotfiles(t *testing.T) {
t.Parallel()
dir := t.TempDir()
manifestPath := filepath.Join(dir, "index.mf")
fs := afero.NewOsFs()
createTestManifest(t, fs, manifestPath, map[string][]byte{
fs := afero.NewMemMapFs()
manifestFiles := map[string][]byte{
testFile1: []byte("in manifest"),
}
createTestManifest(t, fs, testDataManifestPath, manifestFiles)
createFilesOnDisk(t, fs, map[string][]byte{
testFile1: []byte("in manifest"),
})
unlisted := []RelFilePath{"extra.txt", ".hidden", ".git/config"}
for _, p := range append([]RelFilePath{testFile1}, unlisted...) {
path := filepath.Join(dir, string(p))
require.NoError(t, fs.MkdirAll(filepath.Dir(path), 0o750))
require.NoError(t, afero.WriteFile(fs, path, []byte("x"), 0o600))
}
// Create dotfile and manifest that should be skipped
require.NoError(t, afero.WriteFile(fs, "/data/.hidden", []byte("hidden"), 0o644))
require.NoError(t, afero.WriteFile(fs, "/data/.config/settings", []byte("cfg"), 0o644))
// Create a real extra file
require.NoError(t, fs.MkdirAll(testDataDir, 0o755))
require.NoError(t, afero.WriteFile(fs, "/data/extra.txt", []byte("extra"), 0o644))
chk, err := NewChecker(&CheckerOptions{
ManifestPath: manifestPath,
BasePath: dir,
ManifestPath: testDataManifestPath,
BasePath: testDataDir,
Fs: fs,
})
require.NoError(t, err)
results := make(chan Result, 10)
require.NoError(t, chk.FindExtraFiles(context.Background(), results))
var extras []RelFilePath
for r := range results {
extras = append(extras, r.Path)
}
assert.ElementsMatch(t, unlisted, extras)
}
// TestFindExtraFilesSkipsManifestReachedThroughSymlink checks a tree whose
// index.mf is a symlink to the manifest kept outside the tree: the symlink is
// not reported.
func TestFindExtraFilesSkipsManifestReachedThroughSymlink(t *testing.T) {
t.Parallel()
dir := t.TempDir()
tree := filepath.Join(dir, "tree")
manifestPath := filepath.Join(dir, "real.mf")
linkPath := filepath.Join(tree, "index.mf")
fs := afero.NewOsFs()
createTestManifest(t, fs, manifestPath, map[string][]byte{testFile1: []byte("x")})
require.NoError(t, fs.MkdirAll(tree, 0o750))
require.NoError(t,
afero.WriteFile(fs, filepath.Join(tree, testFile1), []byte("x"), 0o600))
require.NoError(t, os.Symlink(manifestPath, linkPath))
chk, err := NewChecker(&CheckerOptions{
ManifestPath: linkPath,
BasePath: tree,
Fs: fs,
})
err = chk.FindExtraFiles(context.Background(), results)
require.NoError(t, err)
results := make(chan Result, 10)
require.NoError(t, chk.FindExtraFiles(context.Background(), results))
var extras []RelFilePath
var extras []Result
for r := range results {
extras = append(extras, r.Path)
extras = append(extras, r)
}
assert.Empty(t, extras)
}
// TestFindExtraFilesSearchesBaseNamedThroughSymlink names the checked tree
// through a symlink to it: the files in the tree are searched, and the
// symlink itself is not reported.
func TestFindExtraFilesSearchesBaseNamedThroughSymlink(t *testing.T) {
t.Parallel()
dir := t.TempDir()
tree := filepath.Join(dir, "tree")
link := filepath.Join(dir, "link")
manifestPath := filepath.Join(dir, "index.mf")
fs := afero.NewOsFs()
createTestManifest(t, fs, manifestPath, map[string][]byte{testFile1: []byte("x")})
require.NoError(t, fs.MkdirAll(tree, 0o750))
for _, name := range []string{testFile1, testFile2} {
require.NoError(t,
afero.WriteFile(fs, filepath.Join(tree, name), []byte("x"), 0o600))
// Should only report extra.txt, not .hidden, .config/settings, or index.mf
for _, e := range extras {
t.Logf("extra: %s", e.Path)
}
require.NoError(t, os.Symlink(tree, link))
assert.Len(t, extras, 1)
chk, err := NewChecker(&CheckerOptions{
ManifestPath: manifestPath,
BasePath: link,
Fs: fs,
})
require.NoError(t, err)
results := make(chan Result, 10)
require.NoError(t, chk.FindExtraFiles(context.Background(), results))
var extras []RelFilePath
for r := range results {
extras = append(extras, r.Path)
if len(extras) > 0 {
assert.Equal(t, RelFilePath("extra.txt"), extras[0].Path)
}
assert.Equal(t, []RelFilePath{testFile2}, extras)
}
func TestFindExtraFilesContextCancellation(t *testing.T) {
@@ -767,6 +649,77 @@ func TestCheckMissingFileDetectedWithoutFallback(t *testing.T) {
assert.Equal(t, 0, statusCounts[StatusError], "no files should be ERROR")
}
func TestFindExtraFilesSkipsDotfiles(t *testing.T) {
t.Parallel()
// Regression test for #16: FindExtraFiles should not report dotfiles
// or the manifest file itself as extra files.
fs := afero.NewMemMapFs()
files := map[string][]byte{
testFile1: []byte("in manifest"),
}
createTestManifest(t, fs, testDataManifestPath, files)
createFilesOnDisk(t, fs, files)
// Add dotfiles and manifest file on disk
require.NoError(t, afero.WriteFile(fs, "/data/.hidden", []byte("dotfile"), 0o644))
require.NoError(t, fs.MkdirAll("/data/.git", 0o755))
require.NoError(t,
afero.WriteFile(fs, "/data/.git/config", []byte("git config"), 0o644))
chk, err := NewChecker(&CheckerOptions{
ManifestPath: testDataManifestPath,
BasePath: testDataDir,
Fs: fs,
})
require.NoError(t, err)
results := make(chan Result, 10)
err = chk.FindExtraFiles(context.Background(), results)
require.NoError(t, err)
var extras []Result
for r := range results {
extras = append(extras, r)
}
// Should report NO extra files — dotfiles and manifest should be skipped
assert.Empty(t, extras,
"FindExtraFiles should not report dotfiles or manifest file as extra; got: %v",
extras)
}
func TestFindExtraFilesSkipsManifestFile(t *testing.T) {
t.Parallel()
// The manifest file itself should never be reported as extra
fs := afero.NewMemMapFs()
files := map[string][]byte{
testFile1: []byte("content"),
}
createTestManifest(t, fs, testDataManifestPath, files)
createFilesOnDisk(t, fs, files)
chk, err := NewChecker(&CheckerOptions{
ManifestPath: testDataManifestPath,
BasePath: testDataDir,
Fs: fs,
})
require.NoError(t, err)
results := make(chan Result, 10)
err = chk.FindExtraFiles(context.Background(), results)
require.NoError(t, err)
var extras []Result
for r := range results {
extras = append(extras, r)
}
assert.Empty(t, extras,
"manifest file should not be reported as extra; got: %v", extras)
}
func TestCheckEmptyManifest(t *testing.T) {
t.Parallel()
mfer/constants.go
+4 -4
View File
@@ -29,8 +29,8 @@ const (
// Bytes decoding sets aside for each file entry, hash, timestamp and
// MIME type, however short its encoding. checkDecodedSize refuses an
// inner message for which these add up to more than maxDecodedGrowth
// times its size. The mode is held in the file entry itself.
decodedFileEntrySize = 176
// times its size.
decodedFileEntrySize = 160
decodedHashSize = 112
decodedTimestampSize = 64
decodedMIMETypeSize = 16
@@ -38,7 +38,7 @@ const (
// Each file entry mfer writes holds a path of at least one byte, a
// multihash at least as long as SHA-256's 34 bytes (AddFileWithHash
// refuses shorter ones) and a modification time: at least 47 bytes,
// counted at 352. So its manifests add up to at most about 7.49 times
// their size, and this limit is about 7% above that.
// counted at 336. So its manifests add up to at most about 7.15 times
// their size, and this limit is about 12% above that.
maxDecodedGrowth = 8
)
mfer/deserialize.go
+8 -2
View File
@@ -8,6 +8,7 @@ import (
"fmt"
"io"
"github.com/google/uuid"
"github.com/klauspost/compress/zstd"
"github.com/spf13/afero"
"google.golang.org/protobuf/encoding/protowire"
@@ -18,6 +19,7 @@ import (
var (
errInvalidUUIDLength = errors.New("invalid UUID length")
errInvalidUUIDFormat = errors.New("invalid UUID format")
errUnknownVersion = errors.New("unknown version")
errUnknownCompression = errors.New("unknown compression type")
errCompressedHashWrong = errors.New("compressed data hash mismatch")
@@ -30,12 +32,16 @@ var (
"manifest would take too much memory to decode")
)
// validateUUID checks that the byte slice is the 16 bytes of a binary UUID.
// Any 16 bytes are one, so the length is all there is to check.
// validateUUID checks that the byte slice is a valid UUID (16 bytes, parseable).
func validateUUID(data []byte) error {
if len(data) != uuidLength {
return errInvalidUUIDLength
}
// Try to parse as UUID to validate format
_, err := uuid.FromBytes(data)
if err != nil {
return errInvalidUUIDFormat
}
return nil
}
mfer/deserialize_path_test.go
+10 -10
View File
@@ -10,8 +10,8 @@ import (
"strings"
"testing"
"time"
"uuid"
"github.com/google/uuid"
"github.com/klauspost/compress/zstd"
"github.com/multiformats/go-multihash"
"github.com/stretchr/testify/assert"
@@ -119,11 +119,11 @@ func TestDeserializeRejectsInvalidEntryPaths(t *testing.T) {
}
// Entries of a path, an empty hash, an empty MIME type and empty modification
// and change times are counted at 432 bytes each (176 + 112 + 16 + 64 + 64)
// and take 16 bytes plus the path to encode. A 37-character path makes that
// 53 bytes, about 8.2 times: refused, and leaving any one of the five
// uncounted, even the MIME type, brings it under 8. A 39-character path makes
// it 55 bytes, about 7.9 times: loaded.
// and change times are counted at 416 bytes each (160 + 112 + 16 + 64 + 64)
// and take 16 bytes plus the path to encode. A 35-character path makes that
// 51 bytes, about 8.2 times: refused, and leaving any one of the five
// uncounted, even the MIME type, brings it under 8. A 37-character path makes
// it 53 bytes, about 7.8 times: loaded.
func TestDeserializeRefusesEntriesThatDecodeTooLarge(t *testing.T) {
t.Parallel()
@@ -131,8 +131,8 @@ func TestDeserializeRefusesEntriesThatDecodeTooLarge(t *testing.T) {
pathLen int
refused bool
}{
{37, true},
{39, false},
{35, true},
{37, false},
}
for _, tt := range tests {
@@ -215,7 +215,7 @@ func TestDeserializeLoadsDensestManifest(t *testing.T) {
const files = 10000
for i := range files {
name := RelFilePath(strconv.FormatInt(int64(i), 36))
require.NoError(t, b.AddFileWithHash(name, 0, ModTime(time.Unix(0, 0)), 0, hash))
require.NoError(t, b.AddFileWithHash(name, 0, ModTime(time.Unix(0, 0)), hash))
}
var buf bytes.Buffer
@@ -233,7 +233,7 @@ func TestDeserializeValidManifestRoundTrips(t *testing.T) {
require.NoError(t, err)
b := NewBuilder()
require.NoError(t, b.AddFileWithHash("dir/file.txt", 123, ModTime{}, 0, hash))
require.NoError(t, b.AddFileWithHash("dir/file.txt", 123, ModTime{}, hash))
var buf bytes.Buffer
require.NoError(t, b.Build(context.Background(), &buf))
mfer/gpg_test.go
+4 -4
View File
@@ -187,7 +187,7 @@ func TestBuilderWithSigning(t *testing.T) {
// Add a test file
content := []byte("test file content")
reader := bytes.NewReader(content)
_, err := b.AddFile("test.txt", FileSize(len(content)), ModTime{}, 0, reader, nil)
_, err := b.AddFile("test.txt", FileSize(len(content)), ModTime{}, reader, nil)
require.NoError(t, err)
// Build the manifest
@@ -314,7 +314,7 @@ func TestManifestSignatureVerification(t *testing.T) {
// Add a test file
content := []byte("test file content for verification")
reader := bytes.NewReader(content)
_, err := b.AddFile("test.txt", FileSize(len(content)), ModTime{}, 0, reader, nil)
_, err := b.AddFile("test.txt", FileSize(len(content)), ModTime{}, reader, nil)
require.NoError(t, err)
// Build the manifest
@@ -344,7 +344,7 @@ func TestManifestTamperedSignatureFails(t *testing.T) {
content := []byte("test file content")
reader := bytes.NewReader(content)
_, err := b.AddFile("test.txt", FileSize(len(content)), ModTime{}, 0, reader, nil)
_, err := b.AddFile("test.txt", FileSize(len(content)), ModTime{}, reader, nil)
require.NoError(t, err)
var buf bytes.Buffer
@@ -377,7 +377,7 @@ func TestBuilderWithoutSigning(t *testing.T) {
// Add a test file
content := []byte("test file content")
reader := bytes.NewReader(content)
_, err := b.AddFile("test.txt", FileSize(len(content)), ModTime{}, 0, reader, nil)
_, err := b.AddFile("test.txt", FileSize(len(content)), ModTime{}, reader, nil)
require.NoError(t, err)
// Build the manifest
mfer/mf.go
+3
View File
@@ -0,0 +1,3 @@
package mfer
//go:generate protoc ./mf.proto --go_out=paths=source_relative:.
mfer/mf.pb.go
+10 -20
View File
@@ -1,6 +1,6 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.36.12
// protoc-gen-go v1.36.11
// protoc v6.33.4
// source: mf.proto
@@ -223,11 +223,11 @@ type MFFileOuter struct {
// uuid must match the uuid in the inner message
Uuid []byte `protobuf:"bytes,105,opt,name=uuid,proto3" json:"uuid,omitempty"`
InnerMessage []byte `protobuf:"bytes,199,opt,name=innerMessage,proto3" json:"innerMessage,omitempty"`
//detached signature, ascii or binary
// detached signature, ascii or binary
Signature []byte `protobuf:"bytes,201,opt,name=signature,proto3,oneof" json:"signature,omitempty"`
//full GPG key id
// full GPG key id
Signer []byte `protobuf:"bytes,202,opt,name=signer,proto3,oneof" json:"signer,omitempty"`
//full GPG signing public key, ascii or binary
// full GPG signing public key, ascii or binary
SigningPubKey []byte `protobuf:"bytes,203,opt,name=signingPubKey,proto3,oneof" json:"signingPubKey,omitempty"`
unknownFields protoimpl.UnknownFields
sizeCache protoimpl.SizeCache
@@ -337,11 +337,9 @@ type MFFilePath struct {
// gotta have at least one:
Hashes []*MFFileChecksum `protobuf:"bytes,3,rep,name=hashes,proto3" json:"hashes,omitempty"`
// optional per-file metadata
MimeType *string `protobuf:"bytes,301,opt,name=mimeType,proto3,oneof" json:"mimeType,omitempty"`
Mtime *Timestamp `protobuf:"bytes,302,opt,name=mtime,proto3,oneof" json:"mtime,omitempty"`
Ctime *Timestamp `protobuf:"bytes,303,opt,name=ctime,proto3,oneof" json:"ctime,omitempty"`
// permission bits, at most 0777; 0 when not recorded
Mode uint32 `protobuf:"varint,304,opt,name=mode,proto3" json:"mode,omitempty"`
MimeType *string `protobuf:"bytes,301,opt,name=mimeType,proto3,oneof" json:"mimeType,omitempty"`
Mtime *Timestamp `protobuf:"bytes,302,opt,name=mtime,proto3,oneof" json:"mtime,omitempty"`
Ctime *Timestamp `protobuf:"bytes,303,opt,name=ctime,proto3,oneof" json:"ctime,omitempty"`
unknownFields protoimpl.UnknownFields
sizeCache protoimpl.SizeCache
}
@@ -418,13 +416,6 @@ func (x *MFFilePath) GetCtime() *Timestamp {
return nil
}
func (x *MFFilePath) GetMode() uint32 {
if x != nil {
return x.Mode
}
return 0
}
type MFFileChecksum struct {
state protoimpl.MessageState `protogen:"open.v1"`
// 1.0 golang implementation must write a multihash here
@@ -570,7 +561,7 @@ const file_mf_proto_rawDesc = "" +
"\n" +
"_signatureB\t\n" +
"\a_signerB\x10\n" +
"\x0e_signingPubKey\"\x85\x02\n" +
"\x0e_signingPubKey\"\xf0\x01\n" +
"\n" +
"MFFilePath\x12\x12\n" +
"\x04path\x18\x01 \x01(\tR\x04path\x12\x12\n" +
@@ -580,8 +571,7 @@ const file_mf_proto_rawDesc = "" +
"\x05mtime\x18\xae\x02 \x01(\v2\n" +
".TimestampH\x01R\x05mtime\x88\x01\x01\x12&\n" +
"\x05ctime\x18\xaf\x02 \x01(\v2\n" +
".TimestampH\x02R\x05ctime\x88\x01\x01\x12\x13\n" +
"\x04mode\x18\xb0\x02 \x01(\rR\x04modeB\v\n" +
".TimestampH\x02R\x05ctime\x88\x01\x01B\v\n" +
"\t_mimeTypeB\b\n" +
"\x06_mtimeB\b\n" +
"\x06_ctime\".\n" +
@@ -597,7 +587,7 @@ const file_mf_proto_rawDesc = "" +
"\fVERSION_NONE\x10\x00\x12\x0f\n" +
"\vVERSION_ONE\x10\x01B\f\n" +
"\n" +
"_createdAtB\x1bZ\x19sneak.berlin/go/mfer/mferb\x06proto3"
"_createdAtB\x1dZ\x1bgit.eeqj.de/sneak/mfer/mferb\x06proto3"
var (
file_mf_proto_rawDescOnce sync.Once
mfer/mf.proto
+1 -3
View File
@@ -1,6 +1,6 @@
syntax = "proto3";
option go_package = "sneak.berlin/go/mfer/mfer";
option go_package = "git.eeqj.de/sneak/mfer/mfer";
message Timestamp {
int64 seconds = 1;
@@ -59,8 +59,6 @@ message MFFilePath {
optional string mimeType = 301;
optional Timestamp mtime = 302;
optional Timestamp ctime = 303;
// permission bits, at most 0777; 0 when not recorded
uint32 mode = 304;
}
message MFFileChecksum {
mfer/mf.proto.sha256
+1 -1
View File
@@ -1 +1 @@
3d4dcb0b2f4640dd3ae6bb48b833e9f26ae9771e2d3e88bd646e7f1724dda654 mf.proto
103901c42b94396aa7ae128fd503ef693a4b7a03b2169481f25fda3d2c254e00 mf.proto
mfer/mf_test.go
-26
View File
@@ -8,8 +8,6 @@ import (
"testing"
"github.com/stretchr/testify/require"
"google.golang.org/protobuf/reflect/protoreflect"
"sneak.berlin/go/mfer/mfer"
)
// mf.pb.go is generated from mf.proto and committed. `make generate`
@@ -29,27 +27,3 @@ func TestGeneratedCodeMatchesProto(t *testing.T) {
"mfer/mf.proto has changed since mfer/mf.pb.go was generated "+
"from it: run `make generate` and commit the result")
}
// A file entry has exactly the fields docs/FORMAT.md lists for MFFilePath.
func TestFileEntryFieldsMatchSpec(t *testing.T) {
t.Parallel()
want := map[string]protoreflect.FieldNumber{
"path": 1,
"size": 2,
"hashes": 3,
"mimeType": 301,
"mtime": 302,
"ctime": 303,
"mode": 304,
}
got := map[string]protoreflect.FieldNumber{}
fields := (&mfer.MFFilePath{}).ProtoReflect().Descriptor().Fields()
for i := range fields.Len() {
got[string(fields.Get(i).Name())] = fields.Get(i).Number()
}
require.Equal(t, want, got)
}
mfer/scanner.go
-12
View File
@@ -52,9 +52,6 @@ type ScannerOptions struct {
// IncludeTimestamps includes a createdAt timestamp in the manifest
// (default: omit for determinism).
IncludeTimestamps bool
// IncludePermissions records each file's permission bits, 0777 at
// most, in the manifest (default: record 0000).
IncludePermissions bool
// Fs is the filesystem to use, defaults to OsFs if nil.
Fs afero.Fs
// SigningOptions holds GPG signing options (nil = no signing).
@@ -72,7 +69,6 @@ type FileEntry struct {
Size FileSize // File size in bytes
Mtime ModTime // Last modification time
Ctime time.Time // Creation time (platform-dependent)
Mode fs.FileMode // Permission bits (Perm() of the file's mode)
}
// Scanner accumulates files and generates manifests from them.
@@ -357,18 +353,11 @@ func (s *Scanner) scanFile(
}(scannedBytes, scannedFiles)
}
// A mode of 0 records 0000, which means none was recorded.
var mode fs.FileMode
if s.options.IncludePermissions {
mode = entry.Mode
}
// Add to manifest with progress channel
bytesRead, err := builder.AddFile(
entry.Path,
entry.Size,
entry.Mtime,
mode,
f,
fileProgress,
)
@@ -472,7 +461,6 @@ func (s *Scanner) enumerateFileWithInfo(
AbsPath: AbsFilePath(absPath),
Size: FileSize(info.Size()),
Mtime: ModTime(info.ModTime()),
Mode: info.Mode().Perm(),
// Note: Ctime not available from fs.FileInfo on all platforms
// Will need platform-specific code to extract it
}
mfer/scanner_test.go
-41
View File
@@ -4,7 +4,6 @@ package mfer
import (
"bytes"
"context"
"os"
"testing"
"time"
@@ -351,46 +350,6 @@ func TestScannerFileEntryFields(t *testing.T) {
assert.WithinDuration(t, now, time.Time(entry.Mtime), 2*time.Second)
}
// A manifest records every mode as 0000 unless the creator asks for
// permissions; then it records each file's permission bits and never the
// setuid, setgid or sticky bits.
func TestScannerRecordsModeOnlyWhenAsked(t *testing.T) {
t.Parallel()
fs := afero.NewMemMapFs()
require.NoError(t, afero.WriteFile(fs, "/"+testFile1, []byte("a"), 0o640))
require.NoError(t, afero.WriteFile(fs, "/run.sh", []byte("b"), 0o755))
require.NoError(t, afero.WriteFile(fs, "/su", []byte("c"), 0o755))
require.NoError(t, fs.Chmod("/su", 0o755|os.ModeSetuid|os.ModeSetgid|os.ModeSticky))
for _, tc := range []struct {
includePermissions bool
want map[string]uint32
}{
{false, map[string]uint32{testFile1: 0, "run.sh": 0, "su": 0}},
{true, map[string]uint32{testFile1: 0o640, "run.sh": 0o755, "su": 0o755}},
} {
s := NewScannerWithOptions(&ScannerOptions{
Fs: fs,
IncludePermissions: tc.includePermissions,
})
require.NoError(t, s.EnumerateFS(fs, "/", nil))
var buf bytes.Buffer
require.NoError(t, s.ToManifest(context.Background(), &buf, nil))
m, err := NewManifestFromReader(&buf)
require.NoError(t, err)
got := map[string]uint32{}
for _, f := range m.Files() {
got[f.GetPath()] = f.GetMode()
}
assert.Equal(t, tc.want, got, "IncludePermissions: %v", tc.includePermissions)
}
}
func TestScannerLargeFileEnumeration(t *testing.T) {
t.Parallel()
mfer/serialize.go
+1 -1
View File
@@ -8,8 +8,8 @@ import (
"fmt"
"math"
"time"
"uuid"
"github.com/google/uuid"
"github.com/klauspost/compress/zstd"
"google.golang.org/protobuf/proto"
)
package.json
+1
View File
@@ -1,5 +1,6 @@
{
"name": "mfer",
"version": "0.1.0",
"private": true,
"description": "Development tooling for the mfer repository: prettier, used by script/fmt and script/fmt-check to format and verify Markdown and JSON.",
"license": "WTFPL",
script/bootstrap
+5 -116
View File
@@ -13,24 +13,11 @@ set -eu
ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
# Pinned versions, 2026-07-06. Never "latest" or "lts"; exact versions.
# The node version is in .nvmrc, where script/prettier reads it too.
NODE_VERSION="$(cat "$ROOT/.nvmrc")"
NODE_VERSION="22.17.0"
NVM_VERSION="0.40.3"
# sha256 of https://github.com/nvm-sh/nvm/archive/refs/tags/v0.40.3.tar.gz
NVM_SHA256="5f4d6aaa04a177dc93c985e31dbc411ab6b8c6e1e21d8015dbc1372625fcd1d0"
YARN_VERSION="1.22.22"
# protoc v33.4, 2026-10-04, for script/generate. The sha256 of each
# platform's release archive is in ensure_protoc.
PROTOC_VERSION="33.4"
# gofumpt v0.12.0 for script/gofumpt, 2026-10-04, and protoc-gen-go
# v1.36.12 for script/generate, 2026-10-06: each is installed into bin/
# with `go install`, pinned to the commit its release tag names. Those two
# scripts refuse any other version, so a new pin is changed there too.
# protoc-gen-go stays at the google.golang.org/protobuf version in go.mod.
GOFUMPT_VERSION="v0.12.0"
GOFUMPT_COMMIT="3e07e7e70ac93761d8e79ca0083a19e3d59f753d"
PROTOC_GEN_GO_VERSION="v1.36.12"
PROTOC_GEN_GO_COMMIT="cdd4c5f7406e82462949c7a65defa9f3029c162d"
PKGMGR=""
SUDO=""
@@ -87,11 +74,9 @@ verify_sha256() {
fi
}
# nvm is a bash script; run a command in a bash with nvm loaded.
# --no-use: otherwise loading nvm here switches to the version .nvmrc
# names, and fails silently while that version is not installed yet.
# nvm is a bash script; run a command in a bash with nvm loaded
nvm_sh() {
bash -c ". \"\$HOME/.nvm/nvm.sh\" --no-use && $*"
bash -c ". \"\$HOME/.nvm/nvm.sh\" && $*"
}
ensure_nvm() {
@@ -137,97 +122,6 @@ install_js_deps() {
fi
}
# Unpack protoc's release archive for this platform into bin/protoc, after
# checking the archive's sha256, unless bin/protoc already holds the pinned
# version. script/generate runs bin/protoc/bin/protoc, so that is the
# binary checked again after unpacking.
ensure_protoc() {
dir="$ROOT/bin/protoc"
if [ "$("$dir/bin/protoc" --version 2>/dev/null)" = \
"libprotoc $PROTOC_VERSION" ]; then
echo "protoc $PROTOC_VERSION"
return 0
fi
case "$(uname -s) $(uname -m)" in
"Linux x86_64")
platform="linux-x86_64"
sha256="c0040ea9aef08fdeb2c74ca609b18d5fdbfc44ea0042fcfbfb38860d35f7dd66"
;;
"Linux aarch64" | "Linux arm64")
platform="linux-aarch_64"
sha256="15aa988f4a6090636525ec236a8e4b3aab41eef402751bd5bb2df6afd9b7b5a5"
;;
"Darwin x86_64")
platform="osx-x86_64"
sha256="a49bec10d039e902d3b43e49938c42526f90011467609864fa6386ac4014da58"
;;
"Darwin arm64")
platform="osx-aarch_64"
sha256="726297dcfed58592fd35620a5a6246ae020c39e88f3fd4cb1827df7bcf3dfcf1"
;;
*)
echo "bootstrap: no protoc archive pinned for $(uname -s) $(uname -m)" >&2
exit 1
;;
esac
if missing curl; then pkg_install curl curl curl curl; fi
if missing unzip; then pkg_install unzip unzip unzip unzip; fi
tmp="$(mktemp -d)"
curl -fsSL -o "$tmp/protoc.zip" \
"https://github.com/protocolbuffers/protobuf/releases/download/v${PROTOC_VERSION}/protoc-${PROTOC_VERSION}-${platform}.zip"
verify_sha256 "$tmp/protoc.zip" "$sha256"
rm -rf "$dir"
unzip -q "$tmp/protoc.zip" -d "$dir"
rm -rf "$tmp"
actual="$("$dir/bin/protoc" --version 2>/dev/null || true)"
if [ "$actual" != "libprotoc $PROTOC_VERSION" ]; then
echo "bootstrap: $dir/bin/protoc reports '$actual'," \
"not libprotoc $PROTOC_VERSION" >&2
exit 1
fi
echo "protoc $PROTOC_VERSION"
}
# Install gofumpt into bin/ unless bin/gofumpt already reports the pinned
# version. script/gofumpt runs bin/gofumpt, so that is the binary checked
# again after installing. Its --version prints the version, then the Go
# version it was built with. The old file is removed first because
# `go install` refuses to replace a file that is not a Go binary.
ensure_gofumpt() {
tool="$ROOT/bin/gofumpt"
if [ "$("$tool" --version 2>/dev/null | cut -d' ' -f1)" != \
"$GOFUMPT_VERSION" ]; then
rm -f "$tool"
GOBIN="$ROOT/bin" go install "mvdan.cc/gofumpt@$GOFUMPT_COMMIT"
fi
actual="$("$tool" --version 2>/dev/null | cut -d' ' -f1)"
if [ "$actual" != "$GOFUMPT_VERSION" ]; then
echo "bootstrap: $tool reports '$actual', not $GOFUMPT_VERSION" >&2
exit 1
fi
echo "gofumpt $GOFUMPT_VERSION"
}
# Install protoc-gen-go into bin/ unless bin/protoc-gen-go already reports
# the pinned version, as ensure_gofumpt does. script/generate runs
# bin/protoc-gen-go, so that is the binary checked again after installing.
ensure_protoc_gen_go() {
tool="$ROOT/bin/protoc-gen-go"
if [ "$("$tool" --version 2>/dev/null)" != \
"protoc-gen-go $PROTOC_GEN_GO_VERSION" ]; then
rm -f "$tool"
GOBIN="$ROOT/bin" go install \
"google.golang.org/protobuf/cmd/protoc-gen-go@$PROTOC_GEN_GO_COMMIT"
fi
actual="$("$tool" --version 2>/dev/null || true)"
if [ "$actual" != "protoc-gen-go $PROTOC_GEN_GO_VERSION" ]; then
echo "bootstrap: $tool reports '$actual'," \
"not protoc-gen-go $PROTOC_GEN_GO_VERSION" >&2
exit 1
fi
echo "protoc-gen-go $PROTOC_GEN_GO_VERSION"
}
main() {
cd "$ROOT"
@@ -238,10 +132,8 @@ main() {
# ---- JS / docs repos ----
# This is a Go repo, but node and yarn are required anyway: prettier
# formats the Markdown and JSON, and script/fmt-check verifies it.
# The version is pinned by package.json/yarn.lock: yarn checks every
# package it fetches against its yarn.lock integrity hash, and
# --frozen-lockfile fails instead of rewriting a yarn.lock that no
# longer matches package.json.
# The version is pinned by package.json/yarn.lock, whose integrity
# hashes --frozen-lockfile enforces.
ensure_node
ensure_yarn
install_js_deps
@@ -250,9 +142,6 @@ main() {
if missing go; then pkg_install go golang go go; fi
# No golangci-lint: script/lint runs it in Docker only.
go mod download
ensure_gofumpt
ensure_protoc
ensure_protoc_gen_go
# ---- Python repos ----
# if missing python3; then pkg_install python3 python3 python3 python3; fi
script/build
-18
View File
@@ -1,18 +0,0 @@
#!/bin/sh
# script/build: build the mfer binary into bin/mfer, stamped with the
# revision `mfer version` prints, derived as script/docker derives it.
set -eu
ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
main() {
cd "$ROOT"
# Own line: a failing command substitution inside an argument does
# not trip `set -e`, so the inline form degrades silently to an
# empty constant.
version="$(git describe --tags --always --dirty 2>/dev/null || true)"
[ -n "$version" ] || version="unknown"
go build -ldflags "-X main.Gitrev=$version" -o bin/mfer ./cmd/mfer
}
main "$@"
script/check
+2 -3
View File
@@ -1,8 +1,7 @@
#!/bin/sh
# script/check: run all checks (test, lint, fmt-check). Our own
# extension to scripts-to-rule-them-all. test and lint are Docker
# phases; fmt-check is native, because a formatter writes the working
# tree. Must not modify any files.
# extension to scripts-to-rule-them-all. Must not modify any files.
# Generic: usually needs no adaptation.
set -eu
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd -P)"
script/cibuild
+4 -8
View File
@@ -1,10 +1,8 @@
#!/bin/sh
# script/cibuild: run the CI build. It bootstraps first: a CI runner
# checks out and runs this and nothing else, and script/fmt-check runs
# the formatter on the host, which a pristine checkout cannot do.
# --no-cache for the same reason as script/docker: the gate phases the
# final stage depends on are RUN steps, and a cached one is a check that
# did not run.
# script/cibuild: run the CI build; the Gitea workflow runs this on push.
# It builds the image with the same command as script/docker. --no-cache
# because the checks the final stage depends on are RUN steps, and a
# cached one is a check that did not run.
set -eu
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd -P)"
@@ -12,8 +10,6 @@ ROOT="$(cd "$SCRIPT_DIR/.." && pwd -P)"
main() {
cd "$ROOT"
"$SCRIPT_DIR/bootstrap"
"$SCRIPT_DIR/check"
# Own line: a failing command substitution inside an argument does
# not trip `set -e`, so the inline form degrades silently to an
# empty constant. The VERSION build argument takes precedence over
script/fmt
+2 -3
View File
@@ -7,9 +7,8 @@ ROOT="$(cd "$SCRIPT_DIR/.." && pwd -P)"
main() {
cd "$ROOT"
# Go, then Markdown and JSON, through the same scripts script/fmt-check
# uses, so both see the same files and the same tool versions.
"$SCRIPT_DIR/gofumpt" --write
gofumpt -l -w mfer internal cmd
# Markdown and JSON, over the same file set script/fmt-check verifies.
"$SCRIPT_DIR/prettier" --write
}
script/fmt-check
+2 -2
View File
@@ -1,13 +1,13 @@
#!/bin/sh
# script/fmt-check: check formatting (read-only). Same scope as
# script/fmt, but fails instead of writing: Go via script/gofumpt,
# script/fmt, but fails instead of writing: Go via script/fmt-check-go,
# Markdown and JSON via script/prettier.
set -eu
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd -P)"
main() {
"$SCRIPT_DIR/gofumpt" --check
"$SCRIPT_DIR/fmt-check-go"
"$SCRIPT_DIR/prettier" --check
}
script/fmt-check-go
Executable
+18
View File
@@ -0,0 +1,18 @@
#!/bin/sh
# script/fmt-check-go: check Go formatting (read-only). Split out from
# script/fmt-check so the Docker lint stage, whose image has no node and
# therefore no prettier, can run the Go half on its own.
set -eu
ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
main() {
cd "$ROOT"
if [ -n "$(gofmt -l .)" ]; then
echo "gofmt: files need formatting:" >&2
gofmt -l . >&2
exit 1
fi
}
main "$@"
script/generate
+18 -25
View File
@@ -4,19 +4,26 @@
# regenerates mf.pb.go: it is committed, so building and checking need no
# protoc. A test fails while mf.proto no longer matches the recorded hash.
#
# Runs the protoc that script/bootstrap unpacks into bin/protoc, and the
# protoc-gen-go it installs into bin/. Another version of either writes a
# different mf.pb.go.
# Needs exactly the protoc and protoc-gen-go versions named in the header of
# the committed mf.pb.go (README.md says how to install them). Another
# version writes a different mf.pb.go, so the script refuses to run.
set -eu
ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
# The versions script/bootstrap installs. protoc 33.4 names itself v6.33.4
# in the mf.pb.go header.
# protoc 33.4 names itself v6.33.4 in the mf.pb.go header.
PROTOC_VERSION="33.4"
PROTOC="$ROOT/bin/protoc/bin/protoc"
PROTOC_GEN_GO_VERSION="v1.36.12"
PROTOC_GEN_GO="$ROOT/bin/protoc-gen-go"
PROTOC_GEN_GO_VERSION="v1.36.11"
# require_version <command> <its exact --version output>
require_version() {
actual="$("$1" --version 2>/dev/null || true)"
if [ "$actual" != "$2" ]; then
echo "generate: needs $2 on PATH, found: ${actual:-none}" >&2
echo " README.md says how to install it." >&2
exit 1
fi
}
# sha256 <file>: print "<hash> <file>", with sha256sum, or with shasum
# where there is no sha256sum.
@@ -32,27 +39,13 @@ sha256() {
}
main() {
# A bin/protoc or bin/protoc-gen-go left from before its pin moved
# fails here, until script/bootstrap replaces it.
actual="$("$PROTOC" --version 2>/dev/null || true)"
if [ "$actual" != "libprotoc $PROTOC_VERSION" ]; then
echo "generate: needs protoc $PROTOC_VERSION in bin/protoc," \
"found: ${actual:-none}; run script/bootstrap" >&2
exit 1
fi
actual="$("$PROTOC_GEN_GO" --version 2>/dev/null || true)"
if [ "$actual" != "protoc-gen-go $PROTOC_GEN_GO_VERSION" ]; then
echo "generate: needs protoc-gen-go $PROTOC_GEN_GO_VERSION in" \
"bin/protoc-gen-go, found: ${actual:-none}; run script/bootstrap" >&2
exit 1
fi
cd "$ROOT/mfer"
require_version protoc "libprotoc $PROTOC_VERSION"
require_version protoc-gen-go "protoc-gen-go $PROTOC_GEN_GO_VERSION"
# Hashed before regenerating, so a missing hash tool stops the script
# before it changes anything. Regenerating leaves mf.proto as it is.
proto_hash="$(sha256 mf.proto)"
"$PROTOC" --plugin=protoc-gen-go="$PROTOC_GEN_GO" \
--go_out=paths=source_relative:. ./mf.proto
go generate .
echo "$proto_hash" >mf.proto.sha256
}
script/gofumpt
-50
View File
@@ -1,50 +0,0 @@
#!/bin/sh
# script/gofumpt: run gofumpt over this repo's Go files.
#
# Takes exactly one mode argument, --write or --check, and runs the same
# gofumpt version over the same files in both modes. script/fmt and
# script/fmt-check both go through here, so what gets formatted and what
# gets verified cannot drift apart.
set -eu
ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
# The gofumpt script/bootstrap installs into bin/. Must match the pin
# there.
GOFUMPT_VERSION="v0.12.0"
GOFUMPT="$ROOT/bin/gofumpt"
usage() {
echo "usage: script/gofumpt --write|--check" >&2
exit 2
}
main() {
[ "$#" -eq 1 ] || usage
# A bin/gofumpt left from before the pin moved formats differently, so
# it fails here until script/bootstrap replaces it.
actual="$("$GOFUMPT" --version 2>/dev/null | cut -d' ' -f1)"
if [ "$actual" != "$GOFUMPT_VERSION" ]; then
echo "gofumpt: needs $GOFUMPT_VERSION in bin/gofumpt," \
"found: ${actual:-none}; run script/bootstrap" >&2
exit 1
fi
# Every Go file in the repo, from $ROOT down. gofumpt holds generated
# files, such as mfer/mf.pb.go, to gofmt's rules only.
case "$1" in
--write) "$GOFUMPT" -l -w "$ROOT" ;;
--check)
# Own line: a failing command inside `[ -n "$(...)" ]` does
# not trip `set -e`, so a gofumpt that never ran would pass.
unformatted="$("$GOFUMPT" -l "$ROOT")"
if [ -n "$unformatted" ]; then
echo "gofumpt: files need formatting (run make fmt):" >&2
echo "$unformatted" >&2
exit 1
fi
;;
*) usage ;;
esac
}
main "$@"
script/install-precommit
+1
View File
@@ -1,6 +1,7 @@
#!/bin/sh
# script/install-precommit: install the git pre-commit hook that runs
# script/precommit. Our own extension to scripts-to-rule-them-all.
# Generic: needs no adaptation.
set -eu
ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
script/lint
+9 -12
View File
@@ -1,13 +1,8 @@
#!/bin/sh
# script/lint: run the linter. Linting is a phase of the Dockerfile and
# this builds that phase alone; the linter is never installed or run on
# a developer host, where a shared result cache and a host-global lock
# make its answer untrustworthy.
#
# The phase is not the last stage in the file, so it is built only when
# --target names it. --no-cache because a cached lint layer is a lint
# that did not run. The tag makes each build replace the previous image
# instead of leaving a dangling one behind.
# script/lint: run golangci-lint, in Docker only. Builds the lint stage of
# the Dockerfile, whose build runs the linter, so a successful build is a
# clean lint. --no-cache because a cached build runs no linter. The image
# is removed afterwards, whatever the outcome.
set -eu
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd -P)"
@@ -15,9 +10,11 @@ ROOT="$(cd "$SCRIPT_DIR/.." && pwd -P)"
main() {
cd "$ROOT"
docker build --no-cache \
--target lint \
-t "$("$SCRIPT_DIR/projectname")-lint" .
# Tagged per run, so concurrent runs never remove each other's image.
image="$("$SCRIPT_DIR/projectname")-lint:$$"
# A failed build leaves no image, so there is nothing to remove then.
trap 'docker image rm "$image" >/dev/null 2>&1 || true' EXIT INT TERM
docker build --no-cache --target lint -t "$image" .
}
main "$@"
script/prettier
+26 -25
View File
@@ -18,9 +18,24 @@ usage() {
exit 2
}
# Only the prettier yarn installed from yarn.lock, never one on PATH: a
# different version formats differently.
PRETTIER="$ROOT/node_modules/.bin/prettier"
# Prefer the version pinned by package.json/yarn.lock so that CI and
# developer machines format identically. Fall back to a prettier on PATH,
# but say so, because a different version formats differently.
find_prettier() {
if [ -x "$ROOT/node_modules/.bin/prettier" ]; then
printf '%s\n' "$ROOT/node_modules/.bin/prettier"
return 0
fi
if command -v prettier >/dev/null 2>&1; then
echo "prettier: node_modules/.bin/prettier is absent; using the" \
"prettier on PATH, which may be a different version than the" \
"one pinned in package.json. Run script/bootstrap to install" \
"the pinned version." >&2
command -v prettier
return 0
fi
return 1
}
main() {
[ "$#" -eq 1 ] || usage
@@ -31,38 +46,24 @@ main() {
cd "$ROOT"
# Where there is no node on PATH, script/bootstrap installs the version
# .nvmrc names through nvm, which keeps it in this directory.
if ! command -v node >/dev/null 2>&1; then
PATH="$HOME/.nvm/versions/node/v$(cat .nvmrc)/bin:$PATH"
fi
if ! command -v node >/dev/null 2>&1; then
echo "prettier: node is missing; run script/bootstrap" >&2
exit 1
fi
# node_modules keeps the old prettier after package.json moves to a new
# one, until script/bootstrap runs again, so compare the two.
if ! installed="$("$PRETTIER" --version 2>/dev/null)"; then
echo "prettier: not installed; run script/bootstrap" >&2
exit 1
fi
pinned="$(node -p 'require("./package.json").devDependencies.prettier')"
if [ "$installed" != "$pinned" ]; then
echo "prettier: package.json pins $pinned but $installed is" \
"installed; run script/bootstrap" >&2
if ! prettier_bin="$(find_prettier)"; then
echo "prettier: not found." >&2
echo " Install it with: script/bootstrap" >&2
echo " (installs the version pinned in package.json/yarn.lock)" >&2
exit 1
fi
# Markdown and JSON, repo-wide rather than root-only, so files in
# subdirectories (docs/, once it exists) are covered too. Exclusions
# live in .prettierignore.
# live in .prettierignore; REPO_POLICIES.md is excluded there because
# it is a verbatim copy of an upstream document.
#
# --no-error-on-unmatched-pattern is deliberately NOT used: both
# patterns always match at least one tracked file (README.md,
# package.json), so an empty match means the glob broke, and prettier
# erroring out is exactly what we want rather than a vacuous pass.
"$PRETTIER" "$mode" "**/*.md" "**/*.json"
"$prettier_bin" "$mode" "**/*.md"
"$prettier_bin" "$mode" "**/*.json"
}
main "$@"
script/setup
+2 -1
View File
@@ -1,6 +1,7 @@
#!/bin/sh
# script/setup: set up the repo for development after a fresh clone:
# installs dependencies and the git pre-commit hook.
# installs dependencies (script/bootstrap) and the git pre-commit hook.
# Add any repo-specific initialization (db init, .env template) here.
set -eu
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd -P)"
script/test
+8 -10
View File
@@ -1,19 +1,17 @@
#!/bin/sh
# script/test: run the test suite. Testing is a phase of the Dockerfile
# and this builds that phase alone, on the same terms as script/lint:
# --target because a phase that is not the last stage is built only when
# named, --no-cache because a cached test layer is a test that did not
# run, and a tag so each build replaces the previous image.
# script/test: run the test suite.
set -eu
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd -P)"
ROOT="$(cd "$SCRIPT_DIR/.." && pwd -P)"
ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
main() {
cd "$ROOT"
docker build --no-cache \
--target test \
-t "$("$SCRIPT_DIR/projectname")-test" .
go test -timeout 30s -race -cover ./... ||
{
echo "--- Rerunning with -v for details ---"
go test -timeout 30s -race -v ./...
exit 1
}
}
main "$@"
script/vulncheck
-22
View File
@@ -1,22 +0,0 @@
#!/bin/sh
# script/vulncheck: report known vulnerabilities in the code mfer calls,
# with govulncheck, which reads the Go vulnerability database online.
# It runs as the vulncheck stage of the Dockerfile, on the same Go as the
# test phase, and this builds that stage alone, on the same terms as
# script/lint and script/test.
#
# script/check does not run it: the gate's result depends on this tree
# alone, and this one changes whenever a new advisory is published.
set -eu
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd -P)"
ROOT="$(cd "$SCRIPT_DIR/.." && pwd -P)"
main() {
cd "$ROOT"
docker build --no-cache \
--target vulncheck \
-t "$("$SCRIPT_DIR/projectname")-vulncheck" .
}
main "$@"