GitHub Actions - patch changelog only if change notes are provided

.github/workflows/release.yml

@@ -28,11 +28,24 @@ jobs:
           java-version: 11
           cache: gradle
 
+      # Set environment variables
+      - name: Export Properties
+        id: properties
+        shell: bash
+        run: |
+          CHANGELOG="$(cat << 'EOM' | sed -e 's/^[[:space:]]*$//g' -e '/./,$!d'
+          ${{ github.event.release.body }}
+          EOM
+          )"
+          
+          echo "::set-output name=changelog::$CHANGELOG"
+
       # Update Unreleased section with the current release note
       - name: Patch Changelog
+        if: ${{ steps.properties.outputs.changelog != '' }}
         run: |
           ./gradlew patchChangelog --release-note "$(cat << 'EOM'
-          ${{ github.event.release.body }}
+          ${{ steps.properties.outputs.changelog }}
           EOM
           )"
 
@@ -50,6 +63,7 @@ jobs:
 
       # Create pull request
       - name: Create Pull Request
+        if: ${{ steps.properties.outputs.changelog != '' }}
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |

CHANGELOG.md

@@ -12,6 +12,7 @@
 - Dependencies (GitHub Actions) - upgrade `jtalk/url-health-check-action` to `2`
 - GitHub Actions general performance refactoring
 - GitHub Actions - prepare plugin archive content to be archived once
+- GitHub Actions - patch changelog only if change notes are provided
 - Update `pluginUntilBuild` to include `213.*` (2021.3.*)
 
 ### Fixed