build: make dashboard self contained again, except when running in ci

[universalmind303]

Changes Made

splits the dashboard/build.rs into 2 separate mains. one for ci, and one for normal.

Prior to the build.rs changes in #4272, you could manually install daft via

uv pip install daft@file:///path/to/repo/Daft

but after these changes, this no longer works.

So this PR essentially reverts those for everywhere except CI.

Notes regarding ci.

Maturin passes the GITHUB_ env vars through to the image, so by detecting the GITHUB_ACTIONS flag, the build should use the existing code path.

• https://github.com/PyO3/maturin-action/blob/main/src/index.ts#L866
• https://github.com/PyO3/maturin-action/blob/main/src/index.ts#L250

so it should run as expected inside the CI.

⚠️ before merging, we must validate a manual run of the build CI.

Related Issues

Checklist

• Documented in API Docs (if applicable)
• Documented in User Guide (if applicable)
• If adding a new documentation page, doc is added to docs/mkdocs.yml navigation
• Documentation builds and is formatted properly (tag @/ccmao1130 for docs review)

[srilman]

Definitely preferable over the make frontend approach, thanks!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.76%. Comparing base (3bffbfe) to head (01b5165).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4417      +/-   ##
==========================================
- Coverage   77.77%   77.76%   -0.01%     
==========================================
  Files         842      842              
  Lines      111937   111937              
==========================================
- Hits        87056    87052       -4     
- Misses      24881    24885       +4     

see 3 files with indirect coverage changes

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[universalmind303]

full CI passed. https://github.com/Eventual-Inc/Daft/actions/runs/15217176554

@kevinzwang, other than the release CI passing, is there anything else we need to do to verify this works as expected?

[kevinzwang]

full CI passed. https://github.com/Eventual-Inc/Daft/actions/runs/15217176554

@kevinzwang, other than the release CI passing, is there anything else we need to do to verify this works as expected?

I was going to suggest try installing it from S3 but the S3 publish only builds for linux. Should be fine to just merge and try it out on the next release