feat: initial GitHub Action for harmont pipelines#1
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Resolves user-provided version input (latest, 1.2.3, v1.2.3) into a concrete release tag. Uses CURL_CMD env var for testability.
- Pass user inputs via env vars instead of inline ${{ }} interpolation
in run blocks (prevents script injection in action.yml and setup/action.yml)
- Check cache directory contents instead of cache-hit output for prefix
matches in cache-restore (prefix restores don't set cache-hit=true)
- Add GITHUB_TOKEN auth header to GitHub API calls in resolve-version.sh
(avoids 60 req/hr unauthenticated rate limit on shared runners)
- Add actions/cache step in setup/ keyed on version + OS + arch - Skip download entirely on cache hit (instant setup on repeat runs) - Remove install-python-dsl input — hm embeds its own DSL engine - Add setup-cached test job to verify cache behavior
New cache-backend input: 'gha' (default, existing behavior) or
'registry' (pushes/pulls images to a container registry).
Registry backend advantages over GHA cache:
- No 10GB size limit (GHCR storage is separate)
- Native Docker layer deduplication (shared base layers stored once)
- Per-image granularity (only changed images push/pull)
- Faster for large images (Docker pull vs untar from GHA cache)
Usage:
- uses: harmont-dev/actions-hm@v1
with:
pipeline: ci
cache-backend: registry
permissions:
packages: write
Images stored at ghcr.io/<owner>/<repo>/harmont-cache/<step>:<hash>
Breaking: removed GHA cache backend entirely. All Docker image caching now goes through a container registry (GHCR by default). Cache save now includes automatic cleanup: - After pushing current images, queries GitHub Packages API for stale versions of each step's image - Keeps N previous versions (configurable via cleanup-keep, default 2) - Deletes older versions to prevent unbounded registry growth - Requires packages:delete permission (gracefully skips if denied) Manifest stored as a scratch image (ghcr.io/.../manifest:latest) so restore can bootstrap without prior local state.
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