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GitHub Actions

To use the GitHub Actions cache, you need to set SCCACHE_GHA_ENABLED to on to enable it.

By changing SCCACHE_GHA_VERSION, we can purge all the cache.

This cache type will need tokens like ACTIONS_CACHE_URL and ACTIONS_RUNTIME_TOKEN to work. You can set these environmental variables using the following step in a GitHub Actions workflow.

- name: Configure sccache
  uses: actions/github-script@v7
  with:
    script: |
      core.exportVariable('ACTIONS_CACHE_URL', process.env.ACTIONS_CACHE_URL || '');
      core.exportVariable('ACTIONS_RUNTIME_TOKEN', process.env.ACTIONS_RUNTIME_TOKEN || '');

Behavior

In case sccache reaches the rate limit of the service, the build will continue, but the storage might not be performed.