Yicong-Huang opened a new issue, #4519:
URL: https://github.com/apache/texera/issues/4519
### Task Summary
Two of the slowest steps in the `scala` job of
`.github/workflows/github-action-build.yml` repeat work that doesn't change
between runs:
1. **Install dependencies** (`pip install -r amber/requirements.txt` etc.) —
currently ~1m 21s every run, no cache. `actions/setup-python@v6` accepts
`cache: 'pip'` with `cache-dependency-path` and would skip the network for
unchanged requirement files.
2. **`sbt 'scalafmtCheckAll; scalafixAll --check'`** — currently ~2m 44s
wall, dominated by the cold compile that scalafix triggers. The
`coursier/cache-action` we already use only caches dependency jars, not the
`target/scala-2.13/{classes,zinc}` directories or `~/.sbt/1.0/zinc`. An
`actions/cache@v4` keyed on `**/*.scala`, `**/*.sbt`, `project/**` would let
incremental compile skip most of the work on cache hit.
Together these are estimated to save 2–3 minutes per scala-job run on cache
hit. Nothing about the existing test logic needs to change.
### Priority
P3 – Low
### Task Type
DevOps / Deployment
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