Fix/53: Only run post_process if release notes were processed.

changelog_gen/cli/command.py

@@ -165,10 +165,10 @@ def _gen(cfg: config.Config, version_tag: str | None = None, *, dry_run: bool =
 
     typer.echo(w)
 
-    _finalise(w, e, version_tag, extension, cfg, dry_run=dry_run)
+    processed = _finalise(w, e, version_tag, extension, cfg, dry_run=dry_run)
 
     post_process = cfg.post_process
-    if post_process:
+    if post_process and processed:
         unique_issues = e.unique_issues(sections)
         per_issue_post_process(post_process, sorted(unique_issues), version_tag, dry_run=dry_run)
 
@@ -181,15 +181,15 @@ def _finalise(  # noqa: PLR0913
     cfg: config.Config,
     *,
     dry_run: bool,
-) -> None:
+) -> bool:
     if dry_run or typer.confirm(
         f"Write CHANGELOG for suggested version {version_tag}",
     ):
         writer.write()
         extractor.clean()
 
         if dry_run or not cfg.commit:
-            return
+            return False
 
         Git.add_path(f"CHANGELOG.{extension.value}")
         # TODO(edgy): Dont add release notes if using commit messages...
@@ -198,3 +198,6 @@ def _finalise(  # noqa: PLR0913
 
         if cfg.release:
             BumpVersion.release(version_tag)
+        return True
+
+    return False

release_notes/53.fix

@@ -0,0 +1 @@
+Only run post_process commands, if changes were actually executed.

tests/cli/test_generate.py

@@ -96,6 +96,7 @@ def post_process_setup(git_repo):
 tag = true
 
 [changelog_gen]
+commit = true
 post_process =
     url=https://my-api/{issue_ref}/release
     auth_env=MY_API_AUTH
@@ -579,17 +580,22 @@ def test_generate_dry_run(
         result = gen_cli_runner.invoke(["--dry-run"])
 
         assert result.exit_code == 0
-        assert post_process_mock.call_args_list == [
-            mock.call(
-                PostProcessConfig(
-                    url="https://my-api/{issue_ref}/release",
-                    auth_env="MY_API_AUTH",
-                ),
-                ["1", "2", "3", "4"],
-                "0.1.0",
-                dry_run=True,
-            ),
-        ]
+        assert post_process_mock.call_count == 0
+
+    @pytest.mark.usefixtures("git_repo", "_release_notes", "changelog", "post_process_setup")
+    def test_generate_decline_changes(
+        self,
+        gen_cli_runner,
+        monkeypatch,
+    ):
+        monkeypatch.setattr(typer, "confirm", mock.MagicMock(return_value=False))
+        post_process_mock = mock.MagicMock()
+        monkeypatch.setattr(command, "per_issue_post_process", post_process_mock)
+
+        result = gen_cli_runner.invoke([])
+
+        assert result.exit_code == 0
+        assert post_process_mock.call_count == 0
 
 
 @freeze_time("2022-04-14T16:45:03")