Test a new workflow

Author: gchristov

.github/workflows/test-check.yml

@@ -0,0 +1,30 @@
+name: Get Root Directories of Changed Files
+
+on:
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  get-root-directories:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Get Root Directories
+        id: get_root_directories
+        run: |
+          git diff --name-only origin/main -- $(git rev-parse --abbrev-ref HEAD) | while IFS= read -r file; do
+            dir=$(dirname "$file")
+            root_dir=$(cd "$dir"; cd -; pwd)
+            echo "::set-output name=root_directories::$root_dir"
+          done
+
+  print-root-directories:
+    runs-on: ubuntu-latest
+    needs: get-root-directories
+    steps:
+      - name: Print Root Directories
+        run: |
+          echo "Root directories:"
+          for root_dir in ${{ jobs.get-root-directories.outputs.root_directories.split(',') }}; do
+            echo "  - $root_dir"
+          done