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attrsum/script/bootstrap
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Re-vendor the canonical files from sneak/prompts at dd4027b (closes #13)
`.dockerignore`, `.gitignore`, `.golangci.yml` and the workflow are their
copies at that commit. This repo's own entries are kept after the
canonical content: the anchored `/attrsum` binary, the Go entries in
`.gitignore`, and tabs for `*.go` in the new `.editorconfig`.
`REPO_POLICIES.md` is new. The workflow keeps `fetch-depth: 0`, which the
policies require of a repo that stamps a tag-derived version.

The lint phase moves to golangci-lint v2.14.0. `script/bootstrap`
installs goimports with `go install` at its pinned commit unless the
installed binary already has the pinned version, read with
`go version -m`. It and `script/fmt` put Go's bin directory on `PATH`
first, since the CI runner's `PATH` lacks it.

Model: opus-5-5
2026-10-06 09:59:37 +02:00

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3.2 KiB
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#!/bin/sh
# script/bootstrap: install all dependencies needed to build and develop
# this repo. Idempotent: every install is guarded by a check so already
# installed tools are skipped. Base tooling comes from nix, apt, brew,
# or apk (detected in that order); assumes nothing is present.
# goimports is installed via `go install` at a pinned commit (never
# "latest"), unless the installed one already has the pinned version.
# The linter is not installed: it runs only as the lint phase of the
# Dockerfile.
set -eu
ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
# Pinned versions, 2026-10-05
# GOIMPORTS_REF is the commit tagged GOIMPORTS_VERSION.
GOIMPORTS_VERSION="v0.42.0"
GOIMPORTS_REF="golang.org/x/tools/cmd/goimports@009367f5c17a8d4c45a961a3a509277190a9a6f0"
PKGMGR=""
SUDO=""
APT_UPDATED=""
detect_pkgmgr() {
[ -n "$PKGMGR" ] && return 0
if command -v nix-env >/dev/null 2>&1; then
PKGMGR="nix"
elif command -v apt-get >/dev/null 2>&1; then
PKGMGR="apt"
elif command -v brew >/dev/null 2>&1; then
PKGMGR="brew"
elif command -v apk >/dev/null 2>&1; then
PKGMGR="apk"
else
echo "bootstrap: no supported package manager (nix, apt, brew, apk)" >&2
exit 1
fi
if [ "$PKGMGR" = "apt" ]; then
export DEBIAN_FRONTEND=noninteractive
if [ "$(id -u)" != "0" ]; then
SUDO="sudo"
fi
fi
}
# pkg_install <nix-attr> <apt-pkg> <brew-formula> <apk-pkg>
pkg_install() {
detect_pkgmgr
case "$PKGMGR" in
nix) nix-env -iA "nixpkgs.$1" ;;
apt)
if [ -z "$APT_UPDATED" ]; then
$SUDO env DEBIAN_FRONTEND=noninteractive apt-get update
APT_UPDATED=1
fi
$SUDO env DEBIAN_FRONTEND=noninteractive apt-get install -y "$2"
;;
brew) brew install "$3" ;;
apk) apk add --no-cache "$4" ;;
esac
}
missing() {
! command -v "$1" >/dev/null 2>&1
}
# Print the version the goimports on PATH was built from, or nothing.
# goimports has no version flag; `go version -m` reads the binary's
# build info, whose "mod" line names the module and its version.
goimports_version() {
if missing goimports; then return 0; fi
go version -m "$(command -v goimports)" 2>/dev/null |
awk '$1 == "mod" { print $3 }'
}
ensure_goimports() {
if [ "$(goimports_version)" = "$GOIMPORTS_VERSION" ]; then
echo "goimports $GOIMPORTS_VERSION already installed"
return 0
fi
go install "$GOIMPORTS_REF"
hash -r
if [ "$(goimports_version)" != "$GOIMPORTS_VERSION" ]; then
echo "bootstrap: goimports on PATH is not $GOIMPORTS_VERSION:" \
"$(command -v goimports)" >&2
exit 1
fi
echo "goimports $GOIMPORTS_VERSION installed"
}
main() {
cd "$ROOT"
if missing git; then pkg_install git git git git; fi
if missing make; then pkg_install gnumake make make make; fi
if missing go; then pkg_install go golang go go; fi
# go install writes to Go's bin directory, which need not be on PATH.
gobin="$(go env GOBIN)"
[ -n "$gobin" ] || gobin="$(go env GOPATH)/bin"
PATH="$gobin:$PATH"
ensure_goimports
go mod download
echo "bootstrap complete"
}
main "$@"