tools: add message on auto-fixing js lint issues in gh workflow

Author: dario-piotrowicz

.github/workflows/linters.yml

@@ -103,7 +103,31 @@ jobs:
       - name: Environment Information
         run: npx envinfo
       - name: Lint JavaScript files
-        run: NODE=$(command -v node) make lint-js
+        run: |
+          set +e
+          NODE=$(command -v node) make lint-js
+          EXIT_CODE="$?"
+          if [ "$EXIT_CODE" != "0" ]; then
+            echo
+            echo 'ERROR: The JavaScript lint validation failed (the errors are logged above).'
+            echo '       Please fix the lint errors.'
+            if NODE=$(command -v node) make lint-js-fix > /dev/null 2>&1; then
+              echo '       Run:'
+              echo '          make lint-js-fix'
+              echo '       to fix the lint issues.'
+              git diff --no-pager
+            elif git diff --quiet --exit-code; then
+              echo '       None of the issue is auto-fixable, so manual fixes for'
+              echo '       all of the issues are required.'
+            else
+              echo '       Run:'
+              echo '          make lint-js-fix'
+              echo '       to fix the auto-fixable lint issues.'
+              echo '       Note that some manual fixes are also required.'
+            fi
+            echo
+            exit "$EXIT_CODE"
+          fi
       - name: Get release version numbers
         if: ${{ github.event.pull_request && github.event.pull_request.base.ref == github.event.pull_request.base.repo.default_branch }}
         id: get-released-versions