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ci: skip GitHub workflow runs for already-tested commits/trees

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When pushing a commit that has already passed a CI or PR build
successfully, it makes sense to save some energy and time and skip the
new build.

Let's teach our GitHub workflow to do that.

For good measure, we also compare the tree ID, which is what we actually
test (the commit ID might have changed due to a reworded commit message,
which should not affect the outcome of the run).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin 2020-10-08 15:29:34 +00:00 committed by Junio C Hamano
parent d98273ba77
commit 7d78d5fc1a
1 changed files with 38 additions and 1 deletions
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39
.github/workflows/main.yml vendored
View File

@ -9,7 +9,7 @@ jobs:
ci-config:
runs-on: ubuntu-latest
outputs:
enabled: ${{ steps.check-ref.outputs.enabled }}
enabled: ${{ steps.check-ref.outputs.enabled }}${{ steps.skip-if-redundant.outputs.enabled }}
steps:
- name: try to clone ci-config branch
run: |
@ -34,6 +34,43 @@ jobs:
enabled=no
fi
echo "::set-output name=enabled::$enabled"
- name: skip if the commit or tree was already tested
id: skip-if-redundant
uses: actions/github-script@v3
if: steps.check-ref.outputs.enabled == 'yes'
with:
github-token: ${{secrets.GITHUB_TOKEN}}
script: |
// Figure out workflow ID, commit and tree
const { data: run } = await github.actions.getWorkflowRun({
owner: context.repo.owner,
repo: context.repo.repo,
run_id: context.runId,
});
const workflow_id = run.workflow_id;
const head_sha = run.head_sha;
const tree_id = run.head_commit.tree_id;
// See whether there is a successful run for that commit or tree
const { data: runs } = await github.actions.listWorkflowRuns({
owner: context.repo.owner,
repo: context.repo.repo,
per_page: 500,
status: 'success',
workflow_id,
});
for (const run of runs.workflow_runs) {
if (head_sha === run.head_sha) {
core.warning(`Successful run for the commit ${head_sha}: ${run.html_url}`);
core.setOutput('enabled', ' but skip');
break;
}
if (tree_id === run.head_commit.tree_id) {
core.warning(`Successful run for the tree ${tree_id}: ${run.html_url}`);
core.setOutput('enabled', ' but skip');
break;
}
}
windows-build:
needs: ci-config