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dnswatcher/script/bootstrap
sneak b8662b8a9c
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docs: correct stale script headers and record the config-verify cost (closes #137)
script/bootstrap credited the goimports pin to script/fmt-check, which
runs gofmt only; the header now credits script/fmt. script/cibuild
still described the Dockerfile as running make check, which stopped
being true once linting moved to its own stage. The docker-missing
warning in script/bootstrap is one sentence instead of three fragments
each carrying the bootstrap: prefix. Dockerfile.lint now states the
residual risk of skipping golangci-lint config verify: unknown
top-level keys in .golangci.yml are ignored silently, so a mistyped key
lints clean and applies nothing.

Comment and message text only; no behaviour changes.
2026-08-10 14:09:20 +00:00

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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") because script/fmt runs it on the host; script/fmt-check
# does not (it runs gofmt only).
# The linter is NOT installed here: golangci-lint runs via docker only
# (script/lint), pinned by image digest, so its only prerequisite is a
# working docker.
set -eu
ROOT="$(cd "$(dirname "$0")/.." && pwd -P)"
# Pinned version, 2026-08-07 (same pin as the Dockerfile)
# goimports v0.42.0
GOIMPORTS_REF="golang.org/x/tools/cmd/goimports@009367f5c17a8d4c45a961a3a509277190a9a6f0"
PKGMGR=""
SUDO=""
APT_UPDATED=""
detect_pkgmgr() {
[ -n "$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 "$1" >/dev/null 2>&1
}
main() {
cd "$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
# Format tools, pinned via go install (installs into
# "$(go env GOPATH)/bin"; ensure that is on your PATH).
if missing goimports; then go install "$GOIMPORTS_REF"; fi
# Linting runs via docker only (script/lint). Warn, don't fail:
# everything except `make lint` works without it.
if missing docker; then
echo "bootstrap: WARNING: docker not found; install it to" \
"run make lint and make docker." >&2
fi
go mod download
echo "bootstrap complete"
}
main "$@"