Test reusable workflow and detecting changed files

.github/workflows/osv-scanner-pr.yml

@@ -0,0 +1,56 @@
+# Copyright 2023 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: OSV-Scanner PR scanning
+
+permissions:
+  contents: read
+
+# env:
+#   # Generator
+#   BUILDER_BINARY: slsa-generator-generic-linux-amd64 # Name of the binary in the release assets.
+#   BUILDER_DIR: internal/builders/generic # Source directory if we compile the builder.
+
+# defaults:
+#   run:
+#     shell: bash
+
+on:
+  workflow_call:
+    inputs:
+    outputs:
+
+jobs:
+  scan-pr:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+          persist-credentials: false
+    - name: Get changed files
+        id: changed-files
+        uses: tj-actions/changed-files@v37
+
+        # To compare changes between the current commit and the last pushed remote commit set `since_last_remote_commit: true`. e.g
+        # with:
+        #   since_last_remote_commit: true 
+
+      - name: List all changed files
+        run: |
+          echo ${{ steps.changed-files.outputs.all_changed_files }}
+          echo ------------
+          for file in ${{ steps.changed-files.outputs.all_changed_files }}; do
+            echo "$file was changed"
+          done

.github/workflows/osv-scanner.yml

@@ -40,6 +40,8 @@ jobs:
       # actions: read
 
     steps:
+      - name: "Run reusable workflow"
+        uses: .github/workflows/osv-scanner-pr.yml
       - name: "Checkout code"
         uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with: