Update pipeline.yml

.github/workflows/pipeline.yml

@@ -78,7 +78,9 @@ jobs:
     - name: Compile TypeScript into JavaScript
       run: pnpm run build
 
-  # detect if there were code changes:
+  # Detect if there were code changes and save the result to:
+  #   - File artifact
+  #   - Environment variable (only available within the scope of this job, thus need artifact to pass to other jobs)
   detect-code-changes:
     name: Detect Code Changes
     needs: build
@@ -87,16 +89,19 @@ jobs:
       code_changes: ${{ steps.files.outputs.code_changes }}
     steps:
       - uses: actions/checkout@v3
-      - name: Determine Changed Files
-        id: files
+      - name: Determine Changed Files and Create Artifact
         run: |
-          echo "CODE_CHANGES=true" >> $GITHUB_ENV
           if git diff --name-only ${{ github.base_ref }}...${{ github.head_ref }} | grep -qvE '(\.md$|\.github/workflows/)'
           then
-            echo "CODE_CHANGES=true" >> $GITHUB_ENV
+            echo "true" > code_changes.txt
           else
-            echo "CODE_CHANGES=false" >> $GITHUB_ENV
+            echo "false" > code_changes.txt
           fi
+          echo "CODE_CHANGES=$(cat code_changes.txt)" >> $GITHUB_ENV
+      - uses: actions/upload-artifact@v2
+        with:
+          name: code-changes-artifact
+          path: code_changes.txt
 
   # Verify new NPM version is updated during push and PR. 
   # Skips version number check step if there were code changes
@@ -114,6 +119,12 @@ jobs:
         with:
           node-version: '20.x'
           registry-url: 'https://registry.npmjs.org/'
+      # - uses: actions/download-artifact@v2
+      #   with:
+      #     name: code-changes-artifact # get artifact containing whether there were code changes
+      # - name: Read Code Changes Flag
+      #   run: |
+      #     echo "CODE_CHANGES=$(cat code_changes.txt)" >> $GITHUB_ENV
       - name: Install dependencies
         run: npm install
       - name: Check if version number is updated
@@ -126,13 +137,14 @@ jobs:
             echo "Version in package.json is already published. Exiting..."
             exit 1
           fi
+          
 
-  # publish to NPM if:
+  # publish to NPM. Runs the publish step only if:
   #   - It was a push
   #   - There were code changes
   publish-npm:
     name: Publish to NPM
-    if: github.event_name == 'push' && env.CODE_CHANGES == 'true'
+    if: github.event_name == 'push'
     needs: verify-npm-version
     runs-on: ubuntu-latest
     steps:
@@ -144,21 +156,27 @@ jobs:
         with:
           node-version: '20.x'
           registry-url: 'https://registry.npmjs.org/'
+      # - uses: actions/download-artifact@v2
+      #   with:
+      #     name: code-changes-artifact # get artifact containing whether there were code changes
+      # - name: Read Code Changes Flag
+      #   run: |
+      #     echo "CODE_CHANGES=$(cat code_changes.txt)" >> $GITHUB_ENV
       - name: Install dependencies
         run: npm install
-      - name: Check if version updated
+      - name: Get package version number
         id: check_version
         run: |
           LATEST_TAG=$(git describe --tags --abbrev=0)
           PACKAGE_VERSION=$(node -p "require('./package.json').version")
           echo "::set-output name=version::$PACKAGE_VERSION"
       - name: Publish to NPM
-        if: steps.check_version.outputs.version
+        if: env.CODE_CHANGES == 'true' && steps.check_version.outputs.version 
         run: npm publish
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
 
-  # Create Release on GitHub if:
+  # Create Release on GitHub if. Runs the release step only if:
   #   - It was a push
   #   - There were code changes
   release:
@@ -169,10 +187,17 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
+      # - uses: actions/download-artifact@v2
+      #   with:
+      #     name: code-changes-artifact # get artifact containing whether there were code changes
+      # - name: Read Code Changes Flag
+      #   run: |
+      #     echo "CODE_CHANGES=$(cat code_changes.txt)" >> $GITHUB_ENV
       - name: Extract version number
         id: package_version
         run: echo "::set-output name=VERSION::$(jq -r .version package.json)"
       - name: Create Release
+        if: env.CODE_CHANGES == 'true'
         uses: actions/create-release@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}