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mfer/Makefile
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sneak 49a7b96e2c
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Fuzz NewManifestFromReader and cap the zstd decoder (closes #65)
FuzzNewManifestFromReader fails when the parser returns both or neither
of a manifest and an error, or allocates more than sixteen times its
input and the decompressed data it may read, plus room for the decoder's
window. make test runs the committed seed corpus; make fuzz fuzzes for
one minute, by hand only.

Parser bug: MaxDecompressedSize did not bound decompression. The zstd
decoder decoded a payload under 128 KiB in full, each frame up to its
own 64 GiB limit, before the LimitReader read any of it. It now decodes
synchronously, only what the LimitReader reads, with MaxDecompressedSize
as its limit. Regression seeds: a frame claiming 8 GiB, and two frames
each under the limit and together over it.

Model: opus-5-5
2026-10-03 23:59:56 +00:00

105 lines
2.4 KiB
Makefile

export DOCKER_BUILDKIT := 1
export PROGRESS_NO_TRUNC := 1
GOPATH := $(shell go env GOPATH)
export PATH := $(PATH):$(GOPATH)/bin
PROTOC_GEN_GO := $(GOPATH)/bin/protoc-gen-go
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)"
.PHONY: bootstrap setup docker default run ci test fuzz check lint fmt fmt-check fmt-check-go fmt-check-md hooks fixme
default: fmt test
bootstrap:
@script/bootstrap
setup:
@script/setup
run: ./bin/mfer
./$<
./$< gen
ci: test
test:
@script/test
fuzz:
@script/fuzz
$(PROTOC_GEN_GO):
test -e $(PROTOC_GEN_GO) || go install -v google.golang.org/protobuf/cmd/protoc-gen-go@v1.28.1
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
devprereqs:
which golangci-lint || go install -v github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.12.2
mfer/mf.pb.go: mfer/mf.proto
cd mfer && go generate .
bin/mfer: $(SOURCEFILES) mfer/mf.pb.go
protoc --version
cd cmd/mfer && go build -tags urfave_cli_no_docs -o ../../bin/mfer $(GOFLAGS) .
clean:
rm -rfv mfer/*.pb.go bin/mfer cmd/mfer/mfer *.dockerimage
fmt:
@script/fmt
lint:
@script/lint
docker:
@script/docker
sneak-mfer.$(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 $@