fix: Fixed a bug in slap release where an unreleased changelog in t…

…he project root was not renamed and updated in a mono repository (#105)

* fix: Fixed a bug in `slap release` where an unreleased changelog in the project root was not renamed and updated in a mono repository

* Updated PR references in 1 changelogs.

skip-checks: true

---------

Co-authored-by: GitHub Action <github-action@users.noreply.github.com>

.changelog/_unreleased.toml

@@ -24,3 +24,10 @@ pr = "https://github.com/NiklasRosenstein/slap/pull/104"
 issues = [
     "https://github.com/NiklasRosenstein/slap/issues/98",
 ]
+
+[[entries]]
+id = "c5d94767-38b7-4b01-8669-c5aaf027d0ab"
+type = "fix"
+description = "Fixed a bug in `slap release` where an unreleased changelog in the project root was not renamed and updated in a mono repository"
+author = "@NiklasRosenstein"
+pr = "https://github.com/NiklasRosenstein/slap/pull/105"

src/slap/ext/release/changelog.py

@@ -11,9 +11,13 @@ class ChangelogReleasePlugin(ReleasePlugin):
 
     def create_release(self, repository: Repository, target_version: str, dry: bool) -> t.Sequence[Path]:
         changed_files: list[Path] = []
-        for project in repository.projects():
+        for project in [None, *repository.projects()]:
             manager = get_changelog_manager(repository, project)
             unreleased = manager.unreleased()
+            if unreleased.path in changed_files:
+                # We hit this case in a single-project repository, where "None" and the single project will
+                # both return the same changelog manager.
+                continue
             new_version = manager.version(target_version)
             if unreleased.exists():
                 cwd = Path.cwd()