Meta: Sync PR labels (#8838)

fregante · web-flow · commit 3d868ffdf5f3 · 2026-01-03T05:29:02.000Z
diff --git a/.github/workflows/copy-labels.yml b/.github/workflows/copy-labels.yml
@@ -0,0 +1,55 @@
+name: PR labeler
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+
+jobs:
+  Sync:
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+      issues: read
+    steps:
+      - uses: actions/github-script@v7
+        with:
+          script: |
+            const allowed = ['bug', 'enhancement', 'meta']
+            const { owner, repo } = context.repo
+            const pr = context.payload.pull_request
+
+            const query = `
+              query($owner:String!, $repo:String!, $number:Int!) {
+                repository(owner:$owner, name:$repo) {
+                  pullRequest(number:$number) {
+                    closingIssuesReferences(first: 10) {
+                      nodes {
+                        labels(first: 20) {
+                          nodes { name }
+                        }
+                      }
+                    }
+                  }
+                }
+              }
+            `
+
+            const res = await github.graphql(query, {
+              owner, repo, number: pr.number
+            })
+
+            const labels = new Set()
+            for (const issue of res.repository.pullRequest.closingIssuesReferences.nodes) {
+              for (const l of issue.labels.nodes) {
+                if (allowed.includes(l.name)) labels.add(l.name)
+              }
+            }
+
+            if (labels.size > 0) {
+              await github.rest.issues.addLabels({
+                owner,
+                repo,
+                issue_number: pr.number,
+                labels: [...labels]
+              })
+            }
