Check for linear in PR description

Author: edwardysun

.github/workflows/linear.yml

@@ -0,0 +1,31 @@
+name: Linear in description
+
+on:
+  pull_request:
+    types:
+      - opened
+      - edited
+
+jobs:
+  check_linear_in_pr_description:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Get pull request info
+        id: pr-info
+        run: |
+          # Fetch the pull request description using GitHub's API
+          pr_description=$(curl -s \
+            -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
+            https://api.github.com/repos/${{ github.repository }}/pulls/${{ github.event.number }} | jq -r .body)
+
+          echo "Pull Request Description: $pr_description"
+          echo "::set-output name=description::$pr_description"
+
+      - name: Check for linear in PR description
+        run: |
+          if echo "${{ steps.pr-info.outputs.description }}" | grep -qi "linear"; then
+            echo "'linear' found in the pull request description."
+          else
+            echo "'linear' not found in the pull request description."
+            exit 1
+          fi