Add dm repo show command

Author: aclark4life

django_mongodb_cli/repo.py

@@ -448,6 +448,18 @@ def reset_repo(name):
     )
 
 
+@repo.command()
+def show(
+    ctx: typer.Context,
+    repo_name: str = typer.Argument(..., help="Repository name"),
+    commit_hash: str = typer.Argument(..., help="Commit hash to show"),
+):
+    """Show the git diff for a specific commit hash in the given repository."""
+    repo = Repo()
+    repo.ctx = ctx
+    repo.show_commit(repo_name, commit_hash)
+
+
 @repo.command()
 def set_default(
     repo_name: str = typer.Argument(None),

django_mongodb_cli/utils.py

@@ -466,6 +466,19 @@ def get_repo_diff(self, repo_name: str) -> None:
         except GitCommandError as e:
             self.err(f"❌ Failed to diff working tree: {e}")
 
+    def show_commit(self, repo_name: str, commit_hash: str) -> None:
+        """Show the diff for a specific commit hash in the given repository."""
+        self.info(f"Showing diff for {repo_name}@{commit_hash}")
+        path, repo = self.ensure_repo(repo_name)
+        if not repo or not path:
+            return
+
+        try:
+            output = repo.git.show(commit_hash)
+            typer.echo(output)
+        except GitCommandError as e:
+            self.err(f"❌ Failed to show commit {commit_hash}: {e}")
+
     def _list_repos(self) -> tuple[set, set]:
         map_repos = set(self.map.keys())