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Re-vendors REPO_POLICIES.md and script/cibuild, docker, lint and test from sneak/prompts at 0653579, on sneak's ruling in sneak/prompts#130. In the Dockerfile's lint, test and builder stages, the system-package install and the module download now come before ARG CACHEBUST, so Docker keeps those layers until the base image, the install line, go.mod or go.sum changes. golangci-lint run also mounts golangci-lint's cache. Every step that lints, tests or compiles still runs on every check build, and go test keeps -count=1 and -race. README and TODO.md say the same. Model: opus-5-5
29 lines
1.1 KiB
Bash
Executable File
29 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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# script/lint: run the linter. Linting is a phase of the Dockerfile and
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# this builds that phase alone; the linter is never installed or run on
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# a developer host, where a shared result cache and a host-global lock
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# make its answer untrustworthy.
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#
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# The phase is not the last stage in the file, so it is built only when
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# --target names it. A new CACHEBUST value reruns every RUN step after
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# the ARG CACHEBUST line, since a cached lint layer is a lint that did
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# not run; unlike --no-cache, it keeps the layers above that line and
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# the cache mounts. This relies on every stage of the Dockerfile
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# declaring ARG CACHEBUST before every step that lints, tests or
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# compiles; a stage without that line is served from cache on an
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# unchanged tree, with no warning.
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# --output type=cacheonly writes no image, since nothing uses one.
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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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docker build --build-arg CACHEBUST="$(date +%s)-$$" \
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--target lint \
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--output type=cacheonly .
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}
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main "$@"
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