[GitHub] [arrow] kou commented on pull request #13556: ARROW-17021:[C++][R][CI] Enable use of sccache in crossbow

[GitBox <gi...@apache.org>]

kou commented on PR #13556:
URL: https://github.com/apache/arrow/pull/13556#issuecomment-1180019956

   We want to use `sccache` because we can't use `actions/cache` of GitHub Actions with our "one branch per task" approach, right?
   
   Can we change our approach so that we can use `actions/cache`? For example:
   
   1. We always use the `master` branch for all tasks instead of creating one branch per task
   2. We add `jobs/${JOB_ID}/tasks.yaml` (or something) that lists commit IDs for target tasks instead of using branch search feature of GitHub (that is too slow for many branches)
       (We can keep only the latest N jobs because old logs in GitHub Actions are removed.)
   3. We create a `${JOB_ID}-${TASK_NAME}` tag for each commit of task to create a release of GitHub Releases to upload artifacts


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