add github action that will add a 'waiting for release' label and comment (#486)

Author: arturminchukov

.github/workflows/pr-merge.yml

@@ -0,0 +1,116 @@
+name: PR Merge - Update Related Issues with the 'waiting for release' label and comment
+
+on:
+  pull_request:
+    types: [closed]
+
+jobs:
+  update-issue:
+    if: github.event.pull_request.merged == true
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: read
+    
+    steps:
+      - name: Extract issue number from PR
+        id: extract-issue
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const prBody = context.payload.pull_request.body || '';
+            const prNumber = context.payload.pull_request.number;
+            
+            let issueNumbers = new Set();
+            
+            // pattern 1: Related issue: #123
+            const relatedPattern = /Related issue:\s*#(\d+)/gi;
+            let match;
+            while ((match = relatedPattern.exec(prBody)) !== null) {
+              issueNumbers.add(match[1]);
+            }
+            
+            // pattern 2: Closes #123, Fixes #123, Resolves #123
+            const closingPattern = /(?:close[sd]?|fix(?:e[sd])?|resolve[sd]?):?\s*#(\d+)/gi;
+            while ((match = closingPattern.exec(prBody)) !== null) {
+              issueNumbers.add(match[1]);
+            }
+            
+            const issues = Array.from(issueNumbers);
+            console.log('Found related issues:', issues);
+            
+            if (issues.length === 0) {
+              console.log('No related issues found');
+              return null;
+            }
+            
+            return issues;
+
+      - name: Add label and comment to issues
+        if: steps.extract-issue.outputs.result != null
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const issues = ${{ steps.extract-issue.outputs.result }};
+            
+            if (!issues || issues.length === 0) {
+              console.log('No issues to update');
+              return;
+            }
+            
+            const prNumber = context.payload.pull_request.number;
+            const prTitle = context.payload.pull_request.title;
+            const prUrl = context.payload.pull_request.html_url;
+            const prAuthor = context.payload.pull_request.user.login;
+            const mergedBy = context.payload.pull_request.merged_by.login;
+            
+            for (const issueNumber of issues) {
+              try {
+                const { data: issue } = await github.rest.issues.get({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  issue_number: parseInt(issueNumber)
+                });
+            
+                // check label `bug` to show in comment `this feature ...` or `this bug ...`
+                const isBug = issue.labels.some(label => 
+                  (typeof label === 'string' ? label : label.name).toLowerCase() === 'bug'
+                );
+                const changeType = isBug ? 'fix' : 'feature';
+                console.log(`Issue #${issueNumber} is a ${changeType}`);
+            
+                // add label "waiting for release"
+                await github.rest.issues.addLabels({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  issue_number: parseInt(issueNumber),
+                  labels: ['waiting for release']
+                });
+            
+                console.log(`Added label "waiting for release" to issue #${issueNumber}`);
+            
+                // add comment to issue
+                const comment = `
+              🎉 The pull request #${prNumber} that addresses this issue has been merged!
+                                  
+              **PR Details:**
+                - **Title:** ${prTitle}
+                - **Author:** @${prAuthor}
+                - **Merged by:** @${mergedBy}
+                - **Link:** ${prUrl}
+
+              This ${changeType} will be included in the next release.
+                `;
+                
+                await github.rest.issues.createComment({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  issue_number: parseInt(issueNumber),
+                  body: comment
+                });
+                
+                console.log(`Added comment to issue #${issueNumber}`);
+              } catch (error) {
+                console.error(`Error processing issue #${issueNumber}:`, error.message);
+              }
+            }