[jira] [Created] (ARROW-14880) [C++][CI] Enable ccache on macOS CI builds

["Antoine Pitrou (Jira)" <ji...@apache.org>]

Antoine Pitrou created ARROW-14880:
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             Summary: [C++][CI] Enable ccache on macOS CI builds
                 Key: ARROW-14880
                 URL: https://issues.apache.org/jira/browse/ARROW-14880
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++, Continuous Integration
            Reporter: Antoine Pitrou


We could install and enable ccache on macOS Github Actions jobs. It would probably speed up a lot of builds.

Apparently ccache is available on Homebrew.  Here is an example using it:
https://github.com/azerothcore/azerothcore-wotlk/blob/master/.github/workflows/macos_build.yml#L26-L33

{code:yaml}
      - name: Cache
        uses: actions/cache@v2
        with:
          path: ~/Library/Caches/ccache
          key: ccache:${{ matrix.os }}:${{ github.ref }}:${{ github.sha }}
          restore-keys: |
            ccache:${{ matrix.os }}:${{ github.ref }}
            ccache:${{ matrix.os }}
{code}




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