feat: auto-close PRs that only needed license updates #4924
Workflow file for this run
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| # Automatically fix license files on PRs that need updates | ||
| # Instead of just failing, this workflow pushes the fix and comments on the PR | ||
| name: License Check | ||
| on: | ||
| pull_request: | ||
| paths: | ||
| - "**.go" | ||
| - go.mod | ||
| - go.sum | ||
| - ".github/licenses.tmpl" | ||
| - "script/licenses*" | ||
| - "third-party-licenses.*.md" | ||
| - "third-party/**" | ||
| permissions: | ||
| contents: write | ||
| pull-requests: write | ||
| jobs: | ||
| license-check: | ||
| runs-on: ubuntu-latest | ||
| # Don't run on forks (they can't push back) or dependabot | ||
| if: github.event.pull_request.head.repo.full_name == github.repository && github.actor != 'dependabot[bot]' | ||
| steps: | ||
| - name: Check out code | ||
| uses: actions/checkout@v6 | ||
| with: | ||
| ref: ${{ github.head_ref }} | ||
| - name: Set up Go | ||
| uses: actions/setup-go@v6 | ||
| with: | ||
| go-version-file: "go.mod" | ||
| # actions/setup-go does not setup the installed toolchain to be preferred over the system install, | ||
| # which causes go-licenses to raise "Package ... does not have module info" errors. | ||
| # For more information, https://github.com/google/go-licenses/issues/244#issuecomment-1885098633 | ||
| - name: Regenerate licenses | ||
| env: | ||
| CI: "true" | ||
| run: | | ||
| export GOROOT=$(go env GOROOT) | ||
| export PATH=${GOROOT}/bin:$PATH | ||
| ./script/licenses | ||
| - name: Check for changes | ||
| id: changes | ||
| run: | | ||
| if git diff --exit-code; then | ||
| echo "changed=false" >> $GITHUB_OUTPUT | ||
| echo "✅ License files are up to date" | ||
| else | ||
| echo "changed=true" >> $GITHUB_OUTPUT | ||
| echo "📝 License files need updating" | ||
| git diff --stat | ||
| fi | ||
| - name: Commit and push fixes | ||
| if: steps.changes.outputs.changed == 'true' | ||
| run: | | ||
| git config --local user.name "github-actions[bot]" | ||
| git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com" | ||
| git add third-party third-party-licenses.*.md | ||
| git commit -m "chore: regenerate third-party licenses" | ||
| git push | ||
| - name: Comment on PR | ||
| if: steps.changes.outputs.changed == 'true' | ||
| uses: actions/github-script@v7 | ||
| with: | ||
| script: | | ||
| github.rest.issues.createComment({ | ||
| owner: context.repo.owner, | ||
| repo: context.repo.repo, | ||
| issue_number: context.issue.number, | ||
| body: `## 📜 License files updated | ||
| I noticed the third-party license files were out of date and pushed a fix to this PR. | ||
| **What changed:** Dependencies were added, removed, or updated, which requires regenerating the license documentation. | ||
| **What I did:** Ran \`./script/licenses\` and committed the result. | ||
| Please pull the latest changes before pushing again.` | ||
| }) | ||
| # After pushing the fix, check if PR now has no functional changes (just license updates) | ||
| # This handles the case where the PR only needed license updates and nothing else | ||
| - name: Check if PR is now empty | ||
| if: steps.changes.outputs.changed == 'true' | ||
| id: empty_check | ||
| uses: actions/github-script@v7 | ||
| with: | ||
| script: | | ||
| const { data: pr } = await github.rest.pulls.get({ | ||
| owner: context.repo.owner, | ||
| repo: context.repo.repo, | ||
| pull_number: context.issue.number | ||
| }); | ||
| const { data: files } = await github.rest.pulls.listFiles({ | ||
| owner: context.repo.owner, | ||
| repo: context.repo.repo, | ||
| pull_number: context.issue.number | ||
| }); | ||
| // Check if ALL changes are just license files | ||
| const nonLicenseFiles = files.filter(f => | ||
| !f.filename.startsWith('third-party-licenses.') && | ||
| !f.filename.startsWith('third-party/') | ||
| ); | ||
| const isEmpty = nonLicenseFiles.length === 0; | ||
| core.setOutput('is_empty', isEmpty); | ||
| if (isEmpty) { | ||
| core.info('PR only contains license file changes - will close as stale'); | ||
| } else { | ||
| core.info(`PR has ${nonLicenseFiles.length} non-license file changes - keeping open`); | ||
| } | ||
| - name: Close stale license-only PR | ||
| if: steps.changes.outputs.changed == 'true' && steps.empty_check.outputs.is_empty == 'true' | ||
| uses: actions/github-script@v7 | ||
| with: | ||
| script: | | ||
| await github.rest.issues.createComment({ | ||
| owner: context.repo.owner, | ||
| repo: context.repo.repo, | ||
| issue_number: context.issue.number, | ||
| body: `## 🤖 Auto-closing stale PR | ||
| This PR now only contains license file updates with no other functional changes. The license updates have been applied, so closing this PR as complete. | ||
| If this PR should have had other changes, please reopen it and add the intended changes.` | ||
| }); | ||
| await github.rest.pulls.update({ | ||
| owner: context.repo.owner, | ||
| repo: context.repo.repo, | ||
| pull_number: context.issue.number, | ||
| state: 'closed' | ||
| }); | ||
