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script/lint, script/test, script/cibuild and script/docker pass a new CACHEBUST build argument on every build in place of --no-cache, which empties every cache mount. Every Dockerfile stage declares ARG CACHEBUST first, so every RUN step still runs on every check build. The canonical Go Dockerfile mounts Go's build cache on the steps that compile and runs both go test runs with -count=1, so no test result is reused. REPO_POLICIES.md, both checklists, the Go styleguide and the README say so. A stage without the ARG line is served from cache, so a repository re-vendors the scripts and the ARG lines in one commit. Model: opus-5-5
27 lines
1.0 KiB
Bash
Executable File
27 lines
1.0 KiB
Bash
Executable File
#!/bin/sh
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# script/docker: build the Docker image tagged with the project name.
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# Identical in all repos; the tag comes from script/projectname.
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# A new CACHEBUST value reruns every RUN step, since a cached gate phase
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# is a check that did not run; unlike --no-cache, it keeps Go's build cache.
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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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# 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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