From 7158dfcd846de2941f1d83ffece4f2edbf9ce478 Mon Sep 17 00:00:00 2001
From: Nicklas Lundin <nicklasl@spotify.com>
Date: Thu, 7 Sep 2023 15:58:31 +0200
Subject: [PATCH] ci: add pr title linter

---
 .github/workflows/lint-pr.yaml | 42 ++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 .github/workflows/lint-pr.yaml

diff --git a/.github/workflows/lint-pr.yaml b/.github/workflows/lint-pr.yaml
new file mode 100644
index 0000000..273f84f
--- /dev/null
+++ b/.github/workflows/lint-pr.yaml
@@ -0,0 +1,42 @@
+name: 'Lint PR'
+
+on:
+  pull_request_target:
+    types:
+      - opened
+      - edited
+      - synchronize
+
+jobs:
+  main:
+    name: Validate PR title
+    runs-on: ubuntu-latest
+    steps:
+      - uses: amannn/action-semantic-pull-request@v5
+        id: lint_pr_title
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - uses: marocchino/sticky-pull-request-comment@v2
+        # 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.
+
+            Details:
+            
+            ```
+            ${{ 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@v2
+        with:   
+          header: pr-title-lint-error
+          delete: true
\ No newline at end of file