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Use GitHub Actions efficiently and reduce unnecessary runner usage:

  • Use cancel-in-progress to suppress multiple jobs for multiple pushes to the same pull request
https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#example-using-concurrency-to-cancel-any-in-progress-job-or-run
  • Uncheck branch protection rule “Require branches to be up to date before merging” to reduce number of runs
    • Potentially add a scheduled run if you are concerned about incompatible PRs getting merged
https://docs.github.com/en/repositories/configuring-branches-and-merges-in-your-repository/defining-the-mergeability-of-pull-requests/about-protected-branches#require-status-checks-before-merging
  • Use filters to eliminate unnecessary runs
    • Documentation PRs shouldn’t require building and testing code.
https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#filter-pattern-cheat-sheet
  • Consider custom docker images for CI with pre-installed and pre-configured dependencies

  • Consider running some jobs on schedule (nightly) rather than on each pull request (e.g. full matrix of platform tests, expensive security scans, code coverage)

  • Inspect Github Actions run results on your own fork prior to opening Pull Request

  • Contact Hyperledger staff for the possibility of dedicated paid runners

Consider using development container images which come pre-installed with all the dependencies a contributor need to get started with writing code on the project.https://code.visualstudio.com/docs/devcontainers/containers


Where appropriate, implement pre-commit rules (Stephen Curran can you clarify?)

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