git_hosting_providers: Fix support for GitLab remotes containing subgroups (#19962)

This PR fixes the support for GitLab remote URLs containing subgroups.

Reported in
https://github.com/zed-industries/zed/issues/18012#issuecomment-2446206256.

Release Notes:

- N/A

crates/git_hosting_providers/src/providers/gitlab.rs

@@ -77,9 +77,9 @@ impl GitHostingProvider for Gitlab {
             return None;
         }
 
-        let mut path_segments = url.path_segments()?;
+        let mut path_segments = url.path_segments()?.collect::<Vec<_>>();
-        let owner = path_segments.next()?;
+        let repo = path_segments.pop()?.trim_end_matches(".git");
-        let repo = path_segments.next()?.trim_end_matches(".git");
+        let owner = path_segments.join("/");
 
         Some(ParsedGitRemote {
             owner: owner.into(),
@@ -178,6 +178,23 @@ mod tests {
         );
     }
 
+    #[test]
+    fn test_parse_remote_url_given_self_hosted_https_url_with_subgroup() {
+        let remote_url = "https://gitlab.my-enterprise.com/group/subgroup/zed.git";
+        let parsed_remote = Gitlab::from_remote_url(remote_url)
+            .unwrap()
+            .parse_remote_url(remote_url)
+            .unwrap();
+
+        assert_eq!(
+            parsed_remote,
+            ParsedGitRemote {
+                owner: "group/subgroup".into(),
+                repo: "zed".into(),
+            }
+        );
+    }
+
     #[test]
     fn test_build_gitlab_permalink() {
         let permalink = Gitlab::new().build_permalink(