Attempt to fix clang-format workflow

.github/workflows/clang_format.yml

@@ -16,29 +16,30 @@ jobs:
         clangFormatVersion: 14
         inplace: true
     - run: git diff HEAD > format_patch.txt
-    - run: if [ "$(cat format_patch.txt)" == "" ] ; then rm format_patch.txt ; fi
+    - run: if [ "$(cat format_patch.txt)" == "" ] ; then rm format_patch.txt ; else cat format_patch.txt; fi
 
     - uses: actions/upload-artifact@v4
       id: upload-artf
       if: ${{ hashFiles('format_patch.txt') != '' }}
       with:
         name: clang format patch
         path: format_patch.txt
-        
+
     - name: Artifact ID test
       run: |
         echo "Artifact ID is ${{ steps.upload-artf.outputs.artifact-id }}"
-        echo "Link: https://github.com/$GITHUB_REPOSITORY/actions/runs/$GITHUB_RUN_ID/artifacts/${{ steps.upload-artf.outputs.artifact-id }}"
-        
-    - name: Post artifact in issue comment
-      uses: mshick/[email protected]
-      if: ${{ hashFiles('format_patch.txt') != '' }}          
-      with:
-        message: |
-          Your PR updated files that did not respect package clang formatting settings.  Please apply the patch found [here](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}/artifacts/${{ steps.upload-artf.outputs.artifact-id }})
-        
+        echo "Link: ${{ steps.upload-artf.outputs.artifact-url }}"
+
+    # This does not work for PRs from forks.
+    # - name: Post artifact in issue comment
+    #   uses: mshick/[email protected]
+    #   if: ${{ hashFiles('format_patch.txt') != '' }}
+    #   with:
+    #     message: |
+    #       Your PR updated files that did not respect package clang formatting settings.  Please apply the patch found [here](${{ steps.upload-artf.outputs.artifact-url }})
+
     - uses: actions/github-script@v3
       if: ${{ hashFiles('format_patch.txt') != '' }}
       with:
         script: |
-          core.setFailed('Please download and apply the formatting patch! It is located at the bottom of the summary tab for this workflow.')
+          core.setFailed('Your PR updated files that did not respect package clang formatting settings. Please download and apply the formatting patch! It is located at the bottom of the summary tab for this workflow and at this link: ${{ steps.upload-artf.outputs.artifact-url }}')