fix output set

Signed-off-by: jparisu <javierparis@eprosima.com>

Author: jparisu

ubuntu/git_diff/action.yml

@@ -46,20 +46,25 @@ runs:
         echo "::group::Get git modifications of file ${{ inputs.file-path }}"
 
         git diff "${{ inputs.base-ref }}" "${{ inputs.head-ref }}" ${{ inputs.diff-args }} -- "${{ inputs.file-path }}" > "${{ inputs.result-file }}"
+        cat "${{ inputs.result-file }}"
 
         if [ -s "${{ inputs.result-file }}" ]; then
 
-          # echo "::set-output name=have-changes::true"
-          echo "{ have-changes }={ true }" >> $GITHUB_OUTPUT
+          echo "::set-output name=have-changes::true"
+          echo "have-changes=true" >> $GITHUB_OUTPUT
+          echo "File has changes"
 
         else
 
-          # echo "::set-output name=have-changes::false"
-          echo "{ have-changes }={ false }" >> $GITHUB_OUTPUT
+          echo "::set-output name=have-changes::false"
+          echo "have-changes=false" >> $GITHUB_OUTPUT
+          echo "File has not changes"
 
         fi
 
         # echo "::set-output name=diff-file-result::$(cat "${{ inputs.result-file }}")"
-        echo "{ diff-file-result }={ $(cat "${{ inputs.result-file }}") }" >> $GITHUB_OUTPUT
+        # echo "diff-file-result=$(cat "${{ inputs.result-file }}")" >> $GITHUB_OUTPUT
+
+        cat $GITHUB_OUTPUT
 
         echo "::endgroup::"