VCS service

app/services/vcs.py

@@ -0,0 +1,28 @@
+from git import Repo, Remote
+
+from app.config import get_settings
+
+
+class GitService:
+  def __init__(self):
+    self._settings = get_settings()
+    self._repo = Repo(self._settings.git.directory)
+    self._origin: Remote = self._repo.remotes.origin
+
+  def get_modified_compose(self) -> str | None:
+    self._update()
+    return self._diff()
+
+  def _update(self):
+    self._origin.pull()
+
+  def _diff(self) -> str | None:
+    diff = self._repo.head.commit.diff("HEAD~1")
+    composes = [f for f in diff if f.a_path.endswith("docker-compose.yml")]
+    match len(composes):
+      case 0:
+        return None
+      case 1:
+        return composes[0].a_path
+      case _:
+        raise Exception("Multiple compose files modified")

pyproject.toml

@@ -11,6 +11,7 @@ dependencies = [
     "jinja2>=3.1.4",
     "pydantic-settings>=2.4.0",
     "pyyaml>=6.0.2",
+    "gitpython>=3.1.45"
 ]
 
 [project.optional-dependencies]