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Tobias
1ad97b148b
Closes #4246. lancedb publishes no source distribution, so a platform without a prebuilt wheel (#4104, #4239) has nothing to install. This adds an sdist to the Python release. ## The sdist job The release workflow builds an sdist with the maturin version of the wheel jobs. On a tag, the publish job uploads it with the wheels: to PyPI, and to Fury for beta tags. The job also runs on the pull request dry run, which now starts on a change to `python/pyproject.toml`. ## Checks - The job builds a wheel from the sdist with `--locked` and smoke-tests it in a fresh venv. - `ci/check_sdist.py` fails if a tracked file of the Python package is missing from the tarball. - `twine check --strict` checks that the metadata renders. `pydistcheck` enforces PyPI's 100 MiB size limit. - The unit tests of both check scripts run in the CI scripts workflow. ## Cargo.lock maturin ships the repository lockfile, which pins crates that only the dropped `nodejs` member uses, so `cargo --locked` fails (PyO3/maturin#2609). The job first runs `cargo metadata --locked` on the repository workspace, so a lockfile that has drifted from `Cargo.toml` fails there. It then removes the nodejs-only pins and repacks the sdist. `ci/check_cargo_lock.py` fails if the prune changes any package it keeps, or any dependency of one. The published file is the repacked one. ## Behavior change After the first release with an sdist, pip on a platform with no current wheel builds the newest version from source, which needs a Rust toolchain and `protoc`. Before, pip installed the last version with a wheel for that platform.