Merge pull request #109 from Hau-Hau/7-release-workflow

add error messages, simplify result

.github/actions/has-changes-action/action.yml

@@ -22,20 +22,15 @@ runs:
       run: |
         hash_current_main=$(git rev-parse origin/main)
         if [ -z "$hash_current_main" ]; then
-          echo "result=false" >> $GITHUB_OUTPUT
-          exit 0
+          echo "Cannot fetch hash of origin/main"
+          exit 1
         fi
         
         hash_of_last_release=$(git tag -l "${{ inputs.project }}/*" | sort -V | tail -n 1 | xargs -I {} git rev-list -n 1 {})
         if [ -z "$hash_of_last_release" ]; then
-          echo "result=false" >> $GITHUB_OUTPUT
-          exit 0
+          echo "Cannot fetch hash of last release"
+          exit 1
         fi
 
         has_differences=$(git diff --quiet "$hash_current_main:./${{ inputs.project }}" "$hash_of_last_release:./${{ inputs.project }} -- ':!*.nuspec'" && echo false || echo true)
-        if [ -z "$has_differences" ]; then
-          echo "result=false" >> $GITHUB_OUTPUT
-          exit 0
-        fi
-        
         echo "result=$has_differences" >> $GITHUB_OUTPUT