clawbot
065357920a
check / check (push) Waiting to run
On sneak's ruling in #130, check builds keep three more things besides Go's build cache. In each stage of the canonical Go Dockerfile, the system-package install and the module download come before ARG CACHEBUST, so Docker keeps those layers until the base image, the install line, go.mod or go.sum changes. Modules are kept as a layer, not a cache mount, because Go does not check a cache mount's files again. golangci-lint run also mounts golangci-lint's cache. Every step that lints, tests or compiles still comes after ARG CACHEBUST, both go test runs keep -count=1, and a step that also installs node packages stays below the line. The policy, checklists, Go style guide, README and script comments say the same. Model: opus-5-5
34 lines
1.4 KiB
Bash
Executable File
34 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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# script/cibuild: run the CI build. It bootstraps first: a CI runner
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# checks out and runs this and nothing else, and script/fmt-check runs
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# the formatter on the host, which a pristine checkout cannot do.
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# A new CACHEBUST value reruns every RUN step after the ARG CACHEBUST
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# line, since a cached gate phase is a check that did not run; unlike
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# --no-cache, it keeps the layers above that line and the cache mounts.
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# This relies on every stage of the Dockerfile declaring ARG CACHEBUST
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# before every step that lints, tests or compiles; a stage without that
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# line is served from cache on an unchanged tree, with no warning.
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set -eu
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd -P)"
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ROOT="$(cd "$SCRIPT_DIR/.." && pwd -P)"
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main() {
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cd "$ROOT"
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"$SCRIPT_DIR/bootstrap"
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"$SCRIPT_DIR/check"
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# The version and the tag each get their own line: a failing
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# command substitution inside an argument does not trip `set -e`,
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# so the inline form degrades silently to an empty constant. The
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# VERSION build argument takes precedence over the version a build
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# stage derives from the .git in the context.
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version="$(git describe --tags --always --dirty 2>/dev/null || true)"
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[ -n "$version" ] || version="unknown"
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tag="$("$SCRIPT_DIR/projectname")"
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docker build --build-arg CACHEBUST="$(date +%s)-$$" \
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--build-arg VERSION="$version" \
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-t "$tag" .
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}
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main "$@"
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