ci: fix pr title verifier

Author: camilamacedo86

.github/workflows/verify.yml

@@ -1,21 +1,51 @@
-name: PR Verifier
+name: "PR Title Verifier"
 
 on:
   pull_request:
-    types: [opened, edited, synchronize,reopened]
-
-permissions:
-  contents: read  # Read-only access to repository contents
-  pull-requests: read  # Read-only access to pull request details
+    types: [opened, edited, synchronize, reopened]
 
 jobs:
-
   verify:
-    name: Verify PR contents
     runs-on: ubuntu-latest
+
     steps:
-    - name: Verifier action
-      id: verifier
-      uses: kubernetes-sigs/[email protected]
-      with:
-        github_token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Get PR title
+        id: get_title
+        run: echo "title=${{ github.event.pull_request.title }}" >> $GITHUB_ENV
+
+      - name: Run PR Title Checker
+        id: check_title
+        run: |
+          if ! ./hack/ci/pr_title_checker.sh "${{ env.title }}" 2>error_message.txt; then
+            echo "failed=true" >> $GITHUB_ENV
+          fi
+
+      - name: Set failure status and save error message
+        if: always()
+        run: |
+          if [ -f error_message.txt ]; then
+            echo "failed=true" >> $GITHUB_ENV
+          fi
+
+      - name: Create PR comment if title is invalid
+        if: always() && env.failed == 'true'
+        uses: actions/github-script@v6
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const fs = require('fs');
+            const errorMessage = fs.readFileSync('error_message.txt', 'utf8');
+            const prNumber = context.payload.pull_request.number;
+            github.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: prNumber,
+              body: `### :x: PR Title Check Failed\n${errorMessage}`
+            });
+
+      - name: Fail the job
+        if: env.failed == 'true'
+        run: exit 1

hack/ci/pr_title_checker.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+# Copyright 2024 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Define regex patterns
+WIP_REGEX="^\W?WIP\W"
+TAG_REGEX="^\[[[:alnum:]\._-]*\]"
+PR_TITLE="$1"
+
+# Trim WIP and tags from title
+trimmed_title=$(echo "$PR_TITLE" | sed -E "s/$WIP_REGEX//" | sed -E "s/$TAG_REGEX//" | xargs)
+
+# Check PR type prefix
+if [[ "$trimmed_title" =~ ^⚠ ]] || [[ "$trimmed_title" =~ ^✨ ]] || [[ "$trimmed_title" =~ ^🐛 ]] || [[ "$trimmed_title" =~ ^📖 ]] || [[ "$trimmed_title" =~ ^🚀 ]] || [[ "$trimmed_title" =~ ^🌱 ]]; then
+    echo "PR title is valid: $trimmed_title"
+    exit 0
+else
+    echo "Error: No matching PR type indicator found in title."
+    echo "You need to have one of these as the prefix of your PR title:"
+    echo "- Breaking change: ⚠ (:warning:)"
+    echo "- Non-breaking feature: ✨ (:sparkles:)"
+    echo "- Patch fix: 🐛 (:bug:)"
+    echo "- Docs: 📖 (:book:)"
+    echo "- Release: 🚀 (:rocket:)"
+    echo "- Infra/Tests/Other: 🌱 (:seedling:)"
+    exit 1
+fi