pr linter GHA

Author: lantoli

.github/pr-labeler.yml

@@ -0,0 +1,10 @@
+version: 1
+labels:
+  - label: "breaking-change"
+    title: "!"
+  - label: "enhancement"
+    title: "feat:*"
+  - label: "enhancement"
+    title: "feature:*"
+  - label: "bug"
+    title: "fix:*"

.github/workflows/pull-request-lint.yml

@@ -0,0 +1,82 @@
+name: pull-request-lint
+
+# Run validations over pull request titles while also adding appropriate labels.
+on:
+  pull_request:
+    types:
+      - labeled
+      - opened
+      - synchronize
+      - reopened
+      - ready_for_review
+      - edited
+jobs:
+  validate:
+    name: Validate PR title
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write # Needed by sticky-pull-request-comment
+    steps:
+      - uses: amannn/action-semantic-pull-request@0723387faaf9b38adef4775cd42cfd5155ed6017
+        id: lint_pr_title
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          types: |-
+            feat
+            fix
+            chore
+            doc
+            test
+            security
+            remove
+            deprecate
+            refactor
+            perf
+            ci
+            revert
+            style
+          requireScope: false
+          # Ensures the subject start with an uppercase character.
+          subjectPattern: ^([A-Z]).+$
+          subjectPatternError: |
+            The subject "{subject}" found in the pull request title "{title}"
+            didn't match the configured pattern. Please ensure that the subject
+            starts with an uppercase character.
+      - uses: marocchino/sticky-pull-request-comment@331f8f5b4215f0445d3c07b4967662a32a2d3e31
+        # When the previous steps fails, the workflow would stop. By adding this
+        # condition you can continue the execution with the populated error message.
+        if: always() && (steps.lint_pr_title.outputs.error_message != null)
+        with:
+          header: pr-title-lint-error
+          message: |
+            Hey there and thank you for opening this pull request! 👋🏼
+            
+            We require pull request titles to follow the [Conventional Commits specification](https://www.conventionalcommits.org/en/v1.0.0/) and it looks like your proposed title needs to be adjusted.
+
+            Additionally, the subject of the title must start with an uppercase character (e.g. feat: New `search` component).
+
+            Details: [contributing development guide](https://github.com/mongodb/terraform-provider-mongodbatlas/blob/master/contributing/development-setup.md#pr-title-format)
+            
+            ```
+            ${{ steps.lint_pr_title.outputs.error_message }}
+            ```
+      # Delete a previous comment when the issue has been resolved
+      - if: ${{ steps.lint_pr_title.outputs.error_message == null }}
+        uses: marocchino/sticky-pull-request-comment@331f8f5b4215f0445d3c07b4967662a32a2d3e31
+        with:   
+          header: pr-title-lint-error
+          delete: true
+  labeler:
+    name: Add Label
+    needs: [ validate ]
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write # Needed by labeler
+    steps:
+      - uses: srvaroa/labeler@fe4b1c73bb8abf2f14a44a6912a8b4fee835d631
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          config_path: .github/pr-labeler.yml