chore(ci): add workflow to detect missing related issue

Signed-off-by: heitorlessa <[email protected]>

Author: heitorlessa

.github/scripts/label_missing_related_issue.js

@@ -0,0 +1,40 @@
+const {
+  PR_ACTION,
+  PR_AUTHOR,
+  PR_BODY,
+  PR_NUMBER,
+  IGNORE_AUTHORS,
+  LABEL_BLOCK,
+  LABEL_BLOCK_REASON
+} = require("./constants")
+
+module.exports = async ({github, context, core}) => {
+    if (IGNORE_AUTHORS.includes(PR_AUTHOR)) {
+      return core.notice("Author in IGNORE_AUTHORS list; skipping...")
+    }
+
+    if (PR_ACTION != "opened") {
+      return core.notice("Only newly open PRs are labelled to avoid spam; skipping")
+    }
+
+    const RELATED_ISSUE_REGEX = /Issue number:[^\d\r\n]+(?<issue>\d+)/;
+    const isMatch = RELATED_ISSUE_REGEX.exec(PR_BODY);
+    if (isMatch == null) {
+        core.info(`No related issue found, maybe the author didn't use the template but there is one.`)
+
+        let msg = "No related issues found. Please ensure there is an open issue related to this change to avoid significant delays or closure.";
+        await github.rest.issues.createComment({
+          owner: context.repo.owner,
+          repo: context.repo.repo,
+          body: msg,
+          issue_number: PR_NUMBER,
+        });
+
+        return await github.rest.issues.addLabels({
+          issue_number: PR_NUMBER,
+          owner: context.repo.owner,
+          repo: context.repo.repo,
+          labels: [LABEL_BLOCK, LABEL_BLOCK_REASON]
+        })
+    }
+}

.github/workflows/on_opened_pr.yml

@@ -0,0 +1,33 @@
+name: On new PR
+
+on:
+  workflow_run:
+    workflows: ["Record PR details"]
+    types:
+      - completed
+
+jobs:
+  get_pr_details:
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    uses: ./.github/workflows/reusable_export_pr_details.yml
+    with:
+      record_pr_workflow_id: ${{ github.event.workflow_run.id }}
+    secrets:
+      token: ${{ secrets.GITHUB_TOKEN }}
+  check_related_issue:
+    needs: get_pr_details
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: "Ensure related issue is present"
+        uses: actions/github-script@v6
+        env:
+          PR_BODY: ${{ needs.get_pr_details.outputs.prBody }}
+          PR_NUMBER: ${{ needs.get_pr_details.outputs.prNumber }}
+          PR_ACTION: ${{ needs.get_pr_details.outputs.prAction }}
+          PR_AUTHOR: ${{ needs.get_pr_details.outputs.prAuthor }}
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const script = require('.github/scripts/label_missing_related_issue.js')
+            await script({github, context, core})