fix hirarchical branch names (#931)

Author: Stephan Dilly

CHANGELOG.md

@@ -11,7 +11,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - support rebasing branches with conflicts ([#895](https://github.com/extrawurst/gitui/issues/895))
 
 ## Fixed
-- appropriate error message when pulling deleted remote branch ([#911](https://github.com/extrawurst/gitui/issues/991))
+- fix supported checkout of hierarchical branchnames ([#921](https://github.com/extrawurst/gitui/issues/921))
+- appropriate error message when pulling deleted remote branch ([#911](https://github.com/extrawurst/gitui/issues/911))
 - improved color contrast in branches popup for light themes  [[@Cottser](https://github.com/Cottser)] ([#922](https://github.com/extrawurst/gitui/issues/922))
 - use git_message_prettify for commit messages ([#917](https://github.com/extrawurst/gitui/issues/917))
 

asyncgit/src/sync/branch/mod.rs

@@ -319,7 +319,7 @@ pub fn checkout_remote_branch(
 		return Err(Error::UncommittedChanges);
 	}
 
-	let name = branch.name.rfind('/').map_or_else(
+	let name = branch.name.find('/').map_or_else(
 		|| branch.name.clone(),
 		|pos| branch.name[pos..].to_string(),
 	);
@@ -795,6 +795,52 @@ mod test_remote_branches {
 		assert_eq!(&get_branch_name(clone2_dir).unwrap(), "foo");
 	}
 
+	#[test]
+	fn test_checkout_remote_branch_hirachical() {
+		let (r1_dir, _repo) = repo_init_bare().unwrap();
+
+		let (clone1_dir, clone1) =
+			repo_clone(r1_dir.path().to_str().unwrap()).unwrap();
+		let clone1_dir = clone1_dir.path().to_str().unwrap();
+
+		// clone1
+
+		let branch_name = "bar/foo";
+
+		write_commit_file(&clone1, "test.txt", "test", "commit1");
+		push(
+			clone1_dir, "origin", "master", false, false, None, None,
+		)
+		.unwrap();
+		create_branch(clone1_dir, branch_name).unwrap();
+		write_commit_file(&clone1, "test.txt", "test2", "commit2");
+		push(
+			clone1_dir,
+			"origin",
+			branch_name,
+			false,
+			false,
+			None,
+			None,
+		)
+		.unwrap();
+
+		// clone2
+
+		let (clone2_dir, _clone2) =
+			repo_clone(r1_dir.path().to_str().unwrap()).unwrap();
+		let clone2_dir = clone2_dir.path().to_str().unwrap();
+
+		let branches = get_branches_info(clone2_dir, false).unwrap();
+
+		checkout_remote_branch(clone2_dir, &branches[1]).unwrap();
+
+		assert_eq!(
+			&get_branch_name(clone2_dir).unwrap(),
+			branch_name
+		);
+	}
+
 	#[test]
 	fn test_has_tracking() {
 		let (r1_dir, _repo) = repo_init_bare().unwrap();