Feature/window/backend #42
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| name: PR workflow | |
| permissions: | |
| contents: read # for git operations | |
| pull-requests: write # to request reviewers | |
| issues: write # to create/update PR comments | |
| on: | |
| pull_request: | |
| types: [opened, synchronize, ready_for_review] # include ready_for_review for draft PRs | |
| jobs: | |
| pr-automation: | |
| name: "PR Check" | |
| runs-on: ubuntu-latest | |
| steps: | |
| # Step 1: Get changed files | |
| - name: Get changed files | |
| id: files | |
| uses: tj-actions/changed-files@v44 | |
| # Step 2: Assign, label, request reviewers, and enforce approvals | |
| - name: Assign, label, request reviewers, enforce approvals | |
| uses: actions/github-script@v7 | |
| with: | |
| script: | | |
| const owner = context.repo.owner; | |
| const repo = context.repo.repo; | |
| const prNumber = context.payload.pull_request.number; | |
| const author = context.payload.pull_request.user.login; | |
| if (context.payload.pull_request.draft) { | |
| console.log("PR is a draft — skipping workflow steps."); | |
| return; | |
| } | |
| const changedFiles = "${{ steps.files.outputs.all_changed_files }}".split(" ").filter(f => f); | |
| // ------------------- | |
| // CONFIGURATION | |
| // ------------------- | |
| const rules = { | |
| frontend: { path: "frontend/", label: "frontend", lead: ["MaddieWright"], team: [] }, | |
| backend: { path: "backend/", label: "backend", lead: ["HeisSteve"], team: [] }, | |
| infra: { path: ".github/", label: "infra", lead: ["HeisSteve", "MaddieWright" ], team: [] } | |
| }; | |
| const labelsToAdd = new Set(); | |
| const reviewersToAdd = new Set(); | |
| const leadsToCheck = new Set(); | |
| const teamToCheck = new Set(); | |
| // Determine applicable rules | |
| for (const file of changedFiles) { | |
| for (const rule of Object.values(rules)) { | |
| if (!file.startsWith(rule.path)) continue; | |
| labelsToAdd.add(rule.label); | |
| // Normalize leads to an array | |
| const leads = Array.isArray(rule.lead) ? rule.lead : [rule.lead]; | |
| // Add leads for approval & reviewers | |
| leads.forEach(u => { | |
| leadsToCheck.add(u); | |
| reviewersToAdd.add(u); | |
| }); | |
| // Add team members for approval & reviewers | |
| rule.team.forEach(u => { | |
| teamToCheck.add(u); | |
| reviewersToAdd.add(u); | |
| }); | |
| } | |
| } | |
| // Assign PR author | |
| await github.rest.issues.addAssignees({ | |
| owner, | |
| repo, | |
| issue_number: prNumber, | |
| assignees: [author] | |
| }); | |
| // Get existing labels | |
| const existingLabels = await github.rest.issues.listLabelsOnIssue({ | |
| owner, | |
| repo, | |
| issue_number: prNumber | |
| }); | |
| const managedLabels = Object.values(rules).map(r => r.label); | |
| const existingManagedLabels = existingLabels.data | |
| .map(l => l.name) | |
| .filter(l => managedLabels.includes(l)); | |
| // Remove labels that no longer apply | |
| for (const label of existingManagedLabels) { | |
| if (!labelsToAdd.has(label)) { | |
| await github.rest.issues.removeLabel({ | |
| owner, | |
| repo, | |
| issue_number: prNumber, | |
| name: label | |
| }); | |
| } | |
| } | |
| // Add labels | |
| if (labelsToAdd.size > 0) { | |
| await github.rest.issues.addLabels({ | |
| owner, | |
| repo, | |
| issue_number: prNumber, | |
| labels: [...labelsToAdd] | |
| }); | |
| } | |
| // Remove PR author from reviewers | |
| if (!leadsToCheck.has(author)) { | |
| reviewersToAdd.delete(author); | |
| } | |
| // Request reviewers | |
| if (reviewersToAdd.size > 0) { | |
| await github.rest.pulls.requestReviewers({ | |
| owner, | |
| repo, | |
| pull_number: prNumber, | |
| reviewers: [...reviewersToAdd] | |
| }); | |
| } | |
| // ------------------- | |
| // CUSTOM APPROVAL CHECK WITH SINGLE COMMENT | |
| // ------------------- | |
| const { data: reviews } = await github.rest.pulls.listReviews({ | |
| owner, | |
| repo, | |
| pull_number: prNumber | |
| }); | |
| // Set of users who approved | |
| const approvedUsers = new Set( | |
| reviews | |
| .filter(r => r.state === "APPROVED") | |
| .map(r => r.user.login) | |
| ); | |
| // Check if at least one lead approved (include author if they are a lead) | |
| const leadApproved = [...leadsToCheck].some(u => approvedUsers.has(u)); | |
| // Count how many team members approved (exclude PR author) | |
| let teamApprovals = 0; | |
| for (const member of teamToCheck) { | |
| if (approvedUsers.has(member) && member !== author) teamApprovals++; | |
| } | |
| // Determine if approval rules are satisfied | |
| const approvalSatisfied = leadApproved || teamApprovals >= 2; | |
| // Prepare the comment body with a timestamp and identifier | |
| const now = new Date().toISOString(); | |
| const commentBody = approvalSatisfied | |
| ? `✅ PR approval conditions satisfied (1 lead OR 2 team members approved).\n[Last checked: ${now}] <!-- PR_APPROVAL_CHECK -->` | |
| : `❌ PR approval conditions NOT satisfied. At least 1 team lead OR 2 team members must approve before merging.\n[Last checked: ${now}] <!-- PR_APPROVAL_CHECK -->`; | |
| const { data: comments } = await github.rest.issues.listComments({ | |
| owner, | |
| repo, | |
| issue_number: prNumber | |
| }); | |
| const existingComment = comments.find(c => c.body.includes("<!-- PR_APPROVAL_CHECK -->")); | |
| if (existingComment) { | |
| // Update the existing comment | |
| await github.rest.issues.updateComment({ | |
| owner, | |
| repo, | |
| comment_id: existingComment.id, | |
| body: commentBody | |
| }); | |
| } else { | |
| // Create a new comment | |
| await github.rest.issues.createComment({ | |
| owner, | |
| repo, | |
| issue_number: prNumber, | |
| body: commentBody | |
| }); | |
| } | |
| // Fail workflow if approvals are not satisfied | |
| if (!approvalSatisfied) { | |
| process.exit(1); | |
| } |