chore(rewrite-existing): comment with PR changes

to prevent empty comments on reworks

.github/workflows/validate_pr.yml

@@ -23,12 +23,18 @@ jobs:
         uses: actions/checkout@v3
         with:
           fetch-depth: 0
+      - run: |
+          # create the master branch
+          git branch ${{ github.base_ref }} origin/${{ github.base_ref }}
+          # create the pr branch
+          git branch ${{ github.head_ref }} origin/${{ github.head_ref }}
       - name: Generate changelog
         id: generate_changelog
         uses: ./
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           path_filters: "changelog_generator/"
+          target: ${{ github.base_ref }}..${{ github.head_ref }}
       - uses: kanga333/comment-hider@bbdf5b562fbec24e6f60572d8f712017428b92e0
         name: Hide previous comments
         with:

action.yml

@@ -23,6 +23,8 @@ inputs:
       This can be used to keep only relevant commits by filtering on relevant files.
       Example:
         path_filters: "src/ doc/ tests/*/qa/*"
+  target:
+    description: A rev1..rev2 string to be used to generate the commit list
 outputs:
   changelog:
     description: 'The generated changelog'
@@ -52,7 +54,8 @@ runs:
         # generate the change log
         CHANGELOG=$(python3 -m changelog_generator \
         --tag_prefix ${{ inputs.tag_prefix }} \
-        --path_filters ${{ inputs.path_filters }}
+        --path_filters ${{ inputs.path_filters }} \
+        --target ${{ inputs.target }}
         )
         
         # truncate the release note to not bloat the 65536 bytes max limit

changelog_generator/__main__.py

@@ -18,13 +18,22 @@ def main() -> None:
         nargs="*",  # optional list
         help="Filter commits with this semicolon separated git path regex",
     )
-
+    parser.add_argument(
+        "--target",
+        nargs="?",  # optional argument
+        help="A rev1..rev2 string to be used to generate the commit list",
+    )
     args = parser.parse_args()
     #
     prefix = args.tag_prefix or os.environ.get("TAG_PREFIX")
     filter_paths = args.path_filters
 
-    changelog = generate(repository_path="./", prefix=prefix, filter_paths=filter_paths)
+    changelog = generate(
+        repository_path="./",
+        prefix=prefix,
+        filter_paths=filter_paths,
+        target=args.target,
+    )
     print(changelog)