Add an undo button to the git panel

assets/keymaps/vim.json

@@ -631,7 +631,7 @@
     }
   },
   {
-    "context": "GitPanel || EmptyPane || SharedScreen || MarkdownPreview || KeyContextView || Welcome",
+    "context": "ChangesList || EmptyPane || SharedScreen || MarkdownPreview || KeyContextView || Welcome",
     "bindings": {
       ":": "command_palette::Toggle",
       "g /": "pane::DeploySearch"

crates/collab/migrations.sqlite/20221109000000_test_schema.sql

@@ -101,6 +101,7 @@ CREATE TABLE "worktree_repositories" (
     "scan_id" INTEGER NOT NULL,
     "is_deleted" BOOL NOT NULL,
     "current_merge_conflicts" VARCHAR,
+    "branch_summary" VARCHAR,
     PRIMARY KEY(project_id, worktree_id, work_directory_id),
     FOREIGN KEY(project_id, worktree_id) REFERENCES worktrees (project_id, id) ON DELETE CASCADE,
     FOREIGN KEY(project_id, worktree_id, work_directory_id) REFERENCES worktree_entries (project_id, worktree_id, id) ON DELETE CASCADE

crates/collab/migrations/20250210223746_add_branch_summary.sql

@@ -0,0 +1,2 @@
+ALTER TABLE worktree_repositories
+ADD COLUMN worktree_repositories VARCHAR NULL;

crates/collab/migrations/20250212060936_add_worktree_branch_summary.sql

@@ -0,0 +1 @@
+ALTER TABLE worktree_repositories ADD COLUMN branch_summary TEXT NULL;

crates/collab/src/db/queries/projects.rs

@@ -326,16 +326,26 @@ impl Database {
 
             if !update.updated_repositories.is_empty() {
                 worktree_repository::Entity::insert_many(update.updated_repositories.iter().map(
-                    |repository| worktree_repository::ActiveModel {
-                        project_id: ActiveValue::set(project_id),
-                        worktree_id: ActiveValue::set(worktree_id),
-                        work_directory_id: ActiveValue::set(repository.work_directory_id as i64),
-                        scan_id: ActiveValue::set(update.scan_id as i64),
-                        branch: ActiveValue::set(repository.branch.clone()),
-                        is_deleted: ActiveValue::set(false),
-                        current_merge_conflicts: ActiveValue::Set(Some(
-                            serde_json::to_string(&repository.current_merge_conflicts).unwrap(),
-                        )),
+                    |repository| {
+                        worktree_repository::ActiveModel {
+                            project_id: ActiveValue::set(project_id),
+                            worktree_id: ActiveValue::set(worktree_id),
+                            work_directory_id: ActiveValue::set(
+                                repository.work_directory_id as i64,
+                            ),
+                            scan_id: ActiveValue::set(update.scan_id as i64),
+                            branch: ActiveValue::set(repository.branch.clone()),
+                            is_deleted: ActiveValue::set(false),
+                            branch_summary: ActiveValue::Set(
+                                repository
+                                    .branch_summary
+                                    .as_ref()
+                                    .map(|summary| serde_json::to_string(summary).unwrap()),
+                            ),
+                            current_merge_conflicts: ActiveValue::Set(Some(
+                                serde_json::to_string(&repository.current_merge_conflicts).unwrap(),
+                            )),
+                        }
                     },
                 ))
                 .on_conflict(
@@ -347,6 +357,8 @@ impl Database {
                     .update_columns([
                         worktree_repository::Column::ScanId,
                         worktree_repository::Column::Branch,
+                        worktree_repository::Column::BranchSummary,
+                        worktree_repository::Column::CurrentMergeConflicts,
                     ])
                     .to_owned(),
                 )
@@ -779,6 +791,13 @@ impl Database {
                         .transpose()?
                         .unwrap_or_default();
 
+                    let branch_summary = db_repository_entry
+                        .branch_summary
+                        .as_ref()
+                        .map(|branch_summary| serde_json::from_str(&branch_summary))
+                        .transpose()?
+                        .unwrap_or_default();
+
                     worktree.repository_entries.insert(
                         db_repository_entry.work_directory_id as u64,
                         proto::RepositoryEntry {
@@ -787,6 +806,7 @@ impl Database {
                             updated_statuses,
                             removed_statuses: Vec::new(),
                             current_merge_conflicts,
+                            branch_summary,
                         },
                     );
                 }

crates/collab/src/db/queries/rooms.rs

@@ -743,12 +743,20 @@ impl Database {
                             .transpose()?
                             .unwrap_or_default();
 
+                        let branch_summary = db_repository
+                            .branch_summary
+                            .as_ref()
+                            .map(|branch_summary| serde_json::from_str(&branch_summary))
+                            .transpose()?
+                            .unwrap_or_default();
+
                         worktree.updated_repositories.push(proto::RepositoryEntry {
                             work_directory_id: db_repository.work_directory_id as u64,
                             branch: db_repository.branch,
                             updated_statuses,
                             removed_statuses,
                             current_merge_conflicts,
+                            branch_summary,
                         });
                     }
                 }

crates/collab/src/db/tables/worktree_repository.rs

@@ -15,6 +15,8 @@ pub struct Model {
     pub is_deleted: bool,
     // JSON array typed string
     pub current_merge_conflicts: Option<String>,
+    // A JSON object representing the current Branch values
+    pub branch_summary: Option<String>,
 }
 
 #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]

crates/collab/src/rpc.rs

@@ -395,6 +395,8 @@ impl Server {
             .add_request_handler(forward_mutating_project_request::<proto::Stage>)
             .add_request_handler(forward_mutating_project_request::<proto::Unstage>)
             .add_request_handler(forward_mutating_project_request::<proto::Commit>)
+            .add_request_handler(forward_read_only_project_request::<proto::GitShow>)
+            .add_request_handler(forward_read_only_project_request::<proto::GitReset>)
             .add_request_handler(forward_mutating_project_request::<proto::OpenCommitMessageBuffer>)
             .add_message_handler(broadcast_project_message_from_host::<proto::AdvertiseContexts>)
             .add_message_handler(update_context)

crates/collab/src/tests/integration_tests.rs

@@ -2895,7 +2895,10 @@ async fn test_git_branch_name(
         assert_eq!(worktrees.len(), 1);
         let worktree = worktrees[0].clone();
         let root_entry = worktree.read(cx).snapshot().root_git_entry().unwrap();
-        assert_eq!(root_entry.branch(), branch_name.map(Into::into));
+        assert_eq!(
+            root_entry.branch().map(|branch| branch.name.to_string()),
+            branch_name
+        );
     }
 
     // Smoke test branch reading
@@ -6783,7 +6786,7 @@ async fn test_remote_git_branches(
         })
     });
 
-    assert_eq!(host_branch.as_ref(), branches[2]);
+    assert_eq!(host_branch.name, branches[2]);
 
     // Also try creating a new branch
     cx_b.update(|cx| {
@@ -6804,5 +6807,5 @@ async fn test_remote_git_branches(
         })
     });
 
-    assert_eq!(host_branch.as_ref(), "totally-new-branch");
+    assert_eq!(host_branch.name, "totally-new-branch");
 }

crates/collab/src/tests/remote_editing_collaboration_tests.rs

@@ -314,7 +314,7 @@ async fn test_ssh_collaboration_git_branches(
         })
     });
 
-    assert_eq!(server_branch.as_ref(), branches[2]);
+    assert_eq!(server_branch.name, branches[2]);
 
     // Also try creating a new branch
     cx_b.update(|cx| {
@@ -337,7 +337,7 @@ async fn test_ssh_collaboration_git_branches(
         })
     });
 
-    assert_eq!(server_branch.as_ref(), "totally-new-branch");
+    assert_eq!(server_branch.name, "totally-new-branch");
 }
 
 #[gpui::test]

crates/git/src/git.rs

@@ -38,6 +38,7 @@ actions!(
         StageAll,
         UnstageAll,
         RevertAll,
+        Uncommit,
         Commit,
         ClearCommitMessage
     ]