GitHub Actions always sets GITHUB_RUN_ID, so the fallback test failed
once CI could run the tests at all.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Manifest.from built every entry with an empty file list and buildFileList
was never called, so tar.create was handed no paths. node-tar throws "no
paths specified to add to archive" for that, so every cache miss failed
before saving.
The runner now builds each manifest entry from buildFileList and passes
the manifest to archiveAndSave. Packages with no files (e.g.
metapackages) are skipped on archive and on restore since tar can't
create an empty archive. Manifest.from is removed.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Restore extracted archives sorted by filename, so packages whose install
scripts depend on files from other packages could break. Restore now
follows the entry order in manifest_all.json, which comes from the apt
install output, and fails explicitly when an archive is missing.
Refs #196
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
