Skip publish stage if nothing to publish

Author: Saadnajmi

.ado/azure-pipelines.publish.yml

@@ -78,14 +78,19 @@ extends:
                 displayName: 'Pack all public packages'
 
               - script: |
-                  echo "Packed tarballs:"
                   ls -la $(System.DefaultWorkingDirectory)/_packed/
+                  if ls $(System.DefaultWorkingDirectory)/_packed/*.tgz > /dev/null 2>&1; then
+                    echo "##vso[task.setvariable variable=hasTarballs;isOutput=true]true"
+                  else
+                    echo "##vso[task.setvariable variable=hasTarballs;isOutput=true]false"
+                  fi
+                name: check
                 displayName: 'List packed tarballs'
 
       - stage: Publish
         displayName: Publish to NPM
         dependsOn: Build
-        condition: and(succeeded(), eq(variables['Build.SourceBranch'], 'refs/heads/main'), not(${{ parameters.skipNpmPublish }}))
+        condition: and(succeeded(), eq(variables['Build.SourceBranch'], 'refs/heads/main'), not(${{ parameters.skipNpmPublish }}), eq(stageDependencies.Build.BuildAndPack.outputs['check.hasTarballs'], 'true'))
         jobs:
           - job: PublishPackages
             displayName: Publish NPM Packages

.github/workflows/pr.yml

@@ -305,6 +305,8 @@ jobs:
     name: NPM Publish Dry Run — Pack
     runs-on: ubuntu-latest
     timeout-minutes: 60
+    outputs:
+      has-tarballs: ${{ steps.check.outputs.has-tarballs }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -324,9 +326,17 @@ jobs:
         run: yarn lage pack --verbose --grouped
 
       - name: List packed tarballs
-        run: ls -la _packed/
+        id: check
+        run: |
+          ls -la _packed/
+          if ls _packed/*.tgz > /dev/null 2>&1; then
+            echo "has-tarballs=true" >> $GITHUB_OUTPUT
+          else
+            echo "has-tarballs=false" >> $GITHUB_OUTPUT
+          fi
 
       - name: Upload packed tarballs
+        if: steps.check.outputs.has-tarballs == 'true'
         uses: actions/upload-artifact@v4
         with:
           name: packed-tarballs-dry-run
@@ -337,6 +347,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     needs: publish-dry-run-pack
+    if: needs.publish-dry-run-pack.outputs.has-tarballs == 'true'
     steps:
       - name: Checkout
         uses: actions/checkout@v4