tree a221b5d531f5eda1a548d4b93100d240cae8552e
parent b6024258c5b9b396b022bad6e7e3d64423048289
author pcloudy <pcloudy@google.com> 1644505397 -0800
committer Copybara-Service <copybara-worker@google.com> 1644505487 -0800

Make `TEST_REPOSITORY_HOME` stable for macOS and Windows

We used to pass `--test_env=TEST_REPOSITORY_HOME=$OUTPUT_BASE/external` for running tests, but the $OUTPUT_BASE is calculated based on the current working directory.

For Linux, the working directory is stable as we run tests inside docker.
For macOS and Windows, the working directory contains the machine name, which caused TEST_REPOSITORY_HOME to be different from one presubmit to another and led to low cache hit rate on those two platforms.

This PR fixes the issue by creating a symlink to $OUTPUT_BASE/external, and always pass the same path to TEST_REPOSITORY_HOME

RELNOTES: None
PiperOrigin-RevId: 427738284