Skip unnecessary rebuilds when no dependencies changed#100
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Add a check step to the rebuild workflow that compares the last commit touching dependency files against the last dist build commit. If no dependency files changed since the last rebuild, all subsequent steps are skipped, avoiding unnecessary install and build cycles.
mraible
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prvn
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Feb 10, 2026
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The weekly rebuild workflow runs install and build even when no dependencies have changed. While the build output for this repo is deterministic, the unnecessary install+build cycle wastes CI time.
This adds an early git-based check that compares the last commit touching dependency files (package.json, package-lock.json) against the last commit touching the dist directory. If no dependency files changed since the last rebuild, the install, build, commit, and PR steps are all skipped.
The check runs before
npm ci, so it adds ~1s of git commands instead of the full install+build cycle when unnecessary. Manual triggering viaworkflow_dispatchstill works normally.