Whenever a branch is pushed to a repository which has GitHub Actions enabled, a bunch of new workflow runs are started. We sometimes see contributors push multiple branch updates in rapid succession, which in conjunction with the impressive time swallowed by even just a single CI build frequently leads to many queued-up runs. This is particularly problematic in the case of Pull Requests where a single contributor can easily (inadvertently) prevent timely builds for other contributors when using a shared repository. To help with this situation, let's use the `concurrency` feature of GitHub workflows, essentially canceling GitHub workflow runs that are obsoleted by more recent runs: https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#concurrency For workflows that *do* want the behavior in the pre-image of this patch, they can use the ci-config feature to disable the new behavior by adding an executable script on the ci-config branch called 'skip-concurrent' which terminates with a non-zero exit code. Original-patch-by: Johannes Schindelin <Johannes.Schindelin@xxxxxx> Signed-off-by: Taylor Blau <me@xxxxxxxxxxxx> --- .github/workflows/check-whitespace.yml | 6 ++++ .github/workflows/l10n.yml | 6 ++++ .github/workflows/main.yml | 40 ++++++++++++++++++++++++-- 3 files changed, 50 insertions(+), 2 deletions(-) diff --git a/.github/workflows/check-whitespace.yml b/.github/workflows/check-whitespace.yml index ad3466ad16..0bcc9cffbd 100644 --- a/.github/workflows/check-whitespace.yml +++ b/.github/workflows/check-whitespace.yml @@ -9,6 +9,12 @@ on: pull_request: types: [opened, synchronize] +# Avoid unnecessary builds. Unlike the main CI jobs, these are not +# ci-configurable (but could be). +concurrency: + group: ${{ github.workflow }}-${{ github.ref }} + cancel-in-progress: true + jobs: check-whitespace: runs-on: ubuntu-latest diff --git a/.github/workflows/l10n.yml b/.github/workflows/l10n.yml index 27f72f0ff3..51fd46e6af 100644 --- a/.github/workflows/l10n.yml +++ b/.github/workflows/l10n.yml @@ -2,6 +2,12 @@ name: git-l10n on: [push, pull_request_target] +# Avoid unnecessary builds. Unlike the main CI jobs, these are not +# ci-configurable (but could be). +concurrency: + group: ${{ github.workflow }}-${{ github.ref }} + cancel-in-progress: true + jobs: git-po-helper: if: >- diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml index bd6f75b8e0..d27cd44584 100644 --- a/.github/workflows/main.yml +++ b/.github/workflows/main.yml @@ -11,6 +11,7 @@ jobs: runs-on: ubuntu-latest outputs: enabled: ${{ steps.check-ref.outputs.enabled }}${{ steps.skip-if-redundant.outputs.enabled }} + skip_concurrent: ${{ steps.check-ref.outputs.skip_concurrent }} steps: - name: try to clone ci-config branch run: | @@ -34,7 +35,15 @@ jobs: then enabled=no fi + + skip_concurrent=yes + if test -x config-repo/ci/config/skip-concurrent && + ! config-repo/ci/config/skip-concurrent '${{ github.ref }}' + then + skip_concurrent=no + fi echo "::set-output name=enabled::$enabled" + echo "::set-output name=skip_concurrent::$skip_concurrent" - name: skip if the commit or tree was already tested id: skip-if-redundant uses: actions/github-script@v3 @@ -82,6 +91,9 @@ jobs: needs: ci-config if: needs.ci-config.outputs.enabled == 'yes' runs-on: windows-latest + concurrency: + group: windows-build-${{ github.ref }} + cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }} steps: - uses: actions/checkout@v2 - uses: git-for-windows/setup-git-for-windows-sdk@v1 @@ -101,11 +113,14 @@ jobs: windows-test: name: win test runs-on: windows-latest - needs: [windows-build] + needs: [ci-config, windows-build] strategy: fail-fast: false matrix: nr: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] + concurrency: + group: windows-test-${{ matrix.nr }}-${{ github.ref }} + cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }} steps: - name: download tracked files and build artifacts uses: actions/download-artifact@v2 @@ -137,6 +152,9 @@ jobs: NO_PERL: 1 GIT_CONFIG_PARAMETERS: "'user.name=CI' 'user.email=ci@git'" runs-on: windows-latest + concurrency: + group: vs-build-${{ github.ref }} + cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }} steps: - uses: actions/checkout@v2 - uses: git-for-windows/setup-git-for-windows-sdk@v1 @@ -184,11 +202,14 @@ jobs: vs-test: name: win+VS test runs-on: windows-latest - needs: vs-build + needs: [ci-config, vs-build] strategy: fail-fast: false matrix: nr: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] + concurrency: + group: vs-test-${{ matrix.nr }}-${{ github.ref }} + cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }} steps: - uses: git-for-windows/setup-git-for-windows-sdk@v1 - name: download tracked files and build artifacts @@ -218,6 +239,9 @@ jobs: name: ${{matrix.vector.jobname}} (${{matrix.vector.pool}}) needs: ci-config if: needs.ci-config.outputs.enabled == 'yes' + concurrency: + group: ${{ matrix.vector.jobname }}-${{ matrix.vector.pool }}-${{ github.ref }} + cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }} strategy: fail-fast: false matrix: @@ -281,6 +305,9 @@ jobs: name: ${{matrix.vector.jobname}} (${{matrix.vector.image}}) needs: ci-config if: needs.ci-config.outputs.enabled == 'yes' + concurrency: + group: dockerized-${{ matrix.vector.jobname }}-${{ matrix.vector.image }}-${{ github.ref }} + cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }} strategy: fail-fast: false matrix: @@ -316,6 +343,9 @@ jobs: env: jobname: StaticAnalysis runs-on: ubuntu-22.04 + concurrency: + group: static-analysis-${{ github.ref }} + cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }} steps: - uses: actions/checkout@v2 - run: ci/install-dependencies.sh @@ -327,6 +357,9 @@ jobs: env: jobname: sparse runs-on: ubuntu-20.04 + concurrency: + group: sparse-${{ github.ref }} + cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }} steps: - name: Download a current `sparse` package # Ubuntu's `sparse` version is too old for us @@ -345,6 +378,9 @@ jobs: name: documentation needs: ci-config if: needs.ci-config.outputs.enabled == 'yes' + concurrency: + group: documentation-${{ github.ref }} + cancel-in-progress: ${{ needs.ci-config.outputs.skip_concurrent == 'yes' }} env: jobname: Documentation runs-on: ubuntu-latest -- 2.38.0.16.g393fd4c6db
