EVEREST-107 add retry loop and refactor auto-update-base #25
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| name: Auto-Update PR Base | |
| on: | |
| push: | |
| branches: | |
| - main | |
| jobs: | |
| auto-update-base: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - uses: actions/github-script@v7 | |
| with: | |
| github-token: ${{ secrets.ROBOT_TOKEN }} | |
| script: | | |
| let retriesNeeded = true; | |
| let attemptCount = 0; | |
| const maxAttempts = 10; // Set a limit for the maximum number of attempts | |
| let errorEncountered = false; // Track if any errors occur | |
| while (retriesNeeded && attemptCount < maxAttempts) { | |
| retriesNeeded = false; // Assume no retries needed, unless 'unknown' state is found. | |
| attemptCount += 1; | |
| try { | |
| const { data: pulls } = await github.rest.pulls.list({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| state: "open", | |
| }); | |
| for (const pull of pulls) { | |
| const hasAutoUpdateLabel = pull.labels.some(label => label.name === "auto-update-base"); | |
| if (hasAutoUpdateLabel) { | |
| try { | |
| const pr = await github.rest.pulls.get({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| pull_number: pull.number, | |
| }); | |
| switch (pr.data.mergeable_state) { | |
| case 'unknown': | |
| console.log(`[INFO] PR #${pull.number}: "${pull.title}" - GitHub is still computing the mergeability. Will retry later.`); | |
| retriesNeeded = true; | |
| break; | |
| case 'clean': | |
| console.log(`[INFO] PR #${pull.number}: "${pull.title}" - Base branch is up-to-date.`); | |
| break; | |
| case 'dirty': | |
| console.log(`[INFO] PR #${pull.number}: "${pull.title}" - Skipping update due to merge conflict.`); | |
| break; | |
| case 'blocked': | |
| console.log(`[INFO] PR #${pull.number}: "${pull.title}" - Skipping update due to blocked status.`); | |
| break; | |
| case 'behind': | |
| console.log(`[UPDATE] PR #${pull.number}: "${pull.title}" - Updating base branch...`); | |
| try { | |
| await github.rest.pulls.updateBranch({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| pull_number: pull.number, | |
| }); | |
| console.log(`[SUCCESS] PR #${pull.number}: "${pull.title}" - Base branch updated.`); | |
| } catch (updateError) { | |
| console.error(`[ERROR] PR #${pull.number}: Failed to update base branch - ${updateError.message}`); | |
| errorEncountered = true; | |
| } | |
| break; | |
| default: | |
| console.log(`[INFO] PR #${pull.number}: "${pull.title}" - Mergeable state: ${pr.data.mergeable_state}. Cannot update base branch.`); | |
| } | |
| } catch (diffError) { | |
| console.error(`[ERROR] PR #${pull.number}: Failed to compare commits - ${diffError.message}`); | |
| errorEncountered = true; | |
| } | |
| } | |
| } | |
| } catch (error) { | |
| console.error(`[ERROR] Failed to list pull requests - ${error.message}`); | |
| errorEncountered = true; | |
| } | |
| if (retriesNeeded && attemptCount < maxAttempts) { | |
| console.log(`[INFO] Retrying for PRs with 'unknown' mergeable state (Attempt ${attemptCount}/${maxAttempts})...`); | |
| await new Promise(resolve => setTimeout(resolve, 5000)); | |
| } | |
| } | |
| if (attemptCount >= maxAttempts) { | |
| console.error(`[ERROR] Maximum attempts (${maxAttempts}) reached. Some PRs may still have 'unknown' mergeable state.`); | |
| errorEncountered = true; | |
| } | |
| if (errorEncountered) { | |
| core.setFailed(`[ERROR] Some PRs failed to update base branch.`); | |
| } else { | |
| console.log(`[INFO] All PRs with 'auto-update-base' label have been processed.`); | |
| } |