Merge pull request #4800 from gitbutlerapp/update-change-reference-for-branch

add api for updating change references

apps/desktop/src/lib/vbranches/branchController.ts

@@ -118,7 +118,7 @@ export class BranchController {
 	/*
 	 * Pushes a change reference to (converted to a git reference to a commit) to the remote
 	 * @param branchId
-	 * @param reference in the format refs/remotes/origin/my-branch (must be remote)
+	 * @param reference in the format refs/remotes/origin/my-branch (must be remote, must already exist)
 	 * @param changeId The change id that is being pushed
 	 */
 	async pushChangeReference(branchId: string, referenceName: string, withForce: boolean = false) {
@@ -134,6 +134,25 @@ export class BranchController {
 		}
 	}
 
+	/*
+	 * Updates a change reference to point to a new change
+	 * @param branchId
+	 * @param reference in the format refs/remotes/origin/my-branch (must be remote, must already exist)
+	 * @param newChangeId The change id to point the reference to
+	 */
+	async updateChangeReference(branchId: string, referenceName: string, newChangeId: string) {
+		try {
+			await invoke<void>('update_change_reference', {
+				projectId: this.projectId,
+				branchId: branchId,
+				name: referenceName,
+				newChangeId: newChangeId
+			});
+		} catch (err) {
+			showError('Failed to update change reference', err);
+		}
+	}
+
 	async updateBranchRemoteName(branchId: string, upstream: string) {
 		try {
 			await invoke<void>('update_virtual_branch', {

crates/gitbutler-branch-actions/src/actions.rs

@@ -401,6 +401,17 @@ impl VirtualBranchActions {
         gitbutler_repo::push_change_reference(&ctx, branch_id, name, with_force, &helper)
     }
 
+    pub fn update_change_reference(
+        &self,
+        project: &Project,
+        branch_id: BranchId,
+        name: ReferenceName,
+        new_change_id: String,
+    ) -> Result<ChangeReference> {
+        let ctx = open_with_verify(project)?;
+        gitbutler_repo::update_change_reference(&ctx, branch_id, name, new_change_id)
+    }
+
     pub fn reorder_commit(
         &self,
         project: &Project,

crates/gitbutler-tauri/src/main.rs

@@ -175,6 +175,7 @@ fn main() {
                     virtual_branches::commands::insert_blank_commit,
                     virtual_branches::commands::create_change_reference,
                     virtual_branches::commands::push_change_reference,
+                    virtual_branches::commands::update_change_reference,
                     virtual_branches::commands::reorder_commit,
                     virtual_branches::commands::update_commit_message,
                     virtual_branches::commands::list_remote_branches,

crates/gitbutler-tauri/src/virtual_branches.rs

@@ -428,6 +428,22 @@ pub mod commands {
         Ok(())
     }
 
+    #[tauri::command(async)]
+    #[instrument(skip(projects, windows), err(Debug))]
+    pub fn update_change_reference(
+        windows: State<'_, WindowState>,
+        projects: State<'_, projects::Controller>,
+        project_id: ProjectId,
+        branch_id: BranchId,
+        name: ReferenceName,
+        new_change_id: String,
+    ) -> Result<(), Error> {
+        let project = projects.get(project_id)?;
+        VirtualBranchActions.update_change_reference(&project, branch_id, name, new_change_id)?;
+        emit_vbranches(&windows, project_id);
+        Ok(())
+    }
+
     #[tauri::command(async)]
     #[instrument(skip(projects, windows), err(Debug))]
     pub fn reorder_commit(