feat(settings): Custom workspace worktree folder can be configured

.gitignore

@@ -1,6 +1,7 @@
 # Logs
 logs
 *.log
+**-lock.**
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*

src-tauri/src/shared/workspaces_core/worktree.rs

@@ -134,7 +134,20 @@ where
         return Err("Cannot create a worktree from another worktree.".to_string());
     }
 
-    let worktree_root = data_dir.join("worktrees").join(&parent_entry.id);
+    // Determine worktree root: per-workspace setting > global setting > default
+    let worktree_root = if let Some(custom_folder) = &parent_entry.settings.worktrees_folder {
+        PathBuf::from(custom_folder)
+    } else {
+        let global_folder = {
+            let settings = app_settings.lock().await;
+            settings.global_worktrees_folder.clone()
+        };
+        if let Some(global_folder) = global_folder {
+            PathBuf::from(global_folder).join(&parent_entry.id)
+        } else {
+            data_dir.join("worktrees").join(&parent_entry.id)
+        }
+    };
     std::fs::create_dir_all(&worktree_root)
         .map_err(|err| format!("Failed to create worktree directory: {err}"))?;
 
@@ -333,7 +346,7 @@ pub(crate) async fn rename_worktree_core<
     data_dir: &PathBuf,
     workspaces: &Mutex<HashMap<String, WorkspaceEntry>>,
     sessions: &Mutex<HashMap<String, Arc<WorkspaceSession>>>,
-    _app_settings: &Mutex<AppSettings>,
+    app_settings: &Mutex<AppSettings>,
     storage_path: &PathBuf,
     resolve_git_root: FResolveGitRoot,
     unique_branch_name: FUniqueBranch,
@@ -393,54 +406,102 @@ where
         return Err("Branch name is unchanged.".to_string());
     }
 
-    run_git_command(&parent_root, &["branch", "-m", &old_branch, &final_branch]).await?;
-
-    let worktree_root = data_dir.join("worktrees").join(&parent.id);
+    // Use the same priority logic as add_worktree_core:
+    // per-workspace setting > global setting > default
+    let worktree_root = if let Some(custom_folder) = &parent.settings.worktrees_folder {
+        PathBuf::from(custom_folder)
+    } else {
+        let global_folder = {
+            let settings = app_settings.lock().await;
+            settings.global_worktrees_folder.clone()
+        };
+        if let Some(global_folder) = global_folder {
+            PathBuf::from(global_folder).join(&parent.id)
+        } else {
+            data_dir.join("worktrees").join(&parent.id)
+        }
+    };
     std::fs::create_dir_all(&worktree_root)
         .map_err(|err| format!("Failed to create worktree directory: {err}"))?;
 
     let safe_name = sanitize_worktree_name(&final_branch);
     let current_path = PathBuf::from(&entry.path);
     let next_path = unique_worktree_path_for_rename(&worktree_root, &safe_name, &current_path)?;
     let next_path_string = next_path.to_string_lossy().to_string();
-    if next_path_string != entry.path {
+    let old_path_string = entry.path.clone();
+
+    run_git_command(&parent_root, &["branch", "-m", &old_branch, &final_branch]).await?;
+
+    let mut moved_worktree = false;
+    if next_path_string != old_path_string {
         if let Err(error) = run_git_command(
             &parent_root,
-            &["worktree", "move", &entry.path, &next_path_string],
+            &["worktree", "move", &old_path_string, &next_path_string],
         )
         .await
         {
             let _ =
                 run_git_command(&parent_root, &["branch", "-m", &final_branch, &old_branch]).await;
             return Err(error);
         }
+        moved_worktree = true;
     }
 
-    let (entry_snapshot, list) = {
+    let update_result: Result<(WorkspaceEntry, WorkspaceEntry, Vec<WorkspaceEntry>), String> = {
         let mut workspaces = workspaces.lock().await;
-        let entry = match workspaces.get_mut(&id) {
-            Some(entry) => entry,
-            None => return Err("workspace not found".to_string()),
-        };
-        if entry.name.trim() == old_branch {
-            entry.name = final_branch.clone();
-        }
-        entry.path = next_path_string.clone();
-        match entry.worktree.as_mut() {
-            Some(worktree) => {
-                worktree.branch = final_branch.clone();
+        if let Some(entry) = workspaces.get_mut(&id) {
+            let old_snapshot = entry.clone();
+            if entry.name.trim() == old_branch {
+                entry.name = final_branch.clone();
             }
-            None => {
-                entry.worktree = Some(WorktreeInfo {
-                    branch: final_branch.clone(),
-                });
+            entry.path = next_path_string.clone();
+            match entry.worktree.as_mut() {
+                Some(worktree) => {
+                    worktree.branch = final_branch.clone();
+                }
+                None => {
+                    entry.worktree = Some(WorktreeInfo {
+                        branch: final_branch.clone(),
+                    });
+                }
             }
+            let snapshot = entry.clone();
+            let list: Vec<_> = workspaces.values().cloned().collect();
+            Ok((old_snapshot, snapshot, list))
+        } else {
+            Err("workspace not found".to_string())
+        }
+    };
+    let (old_snapshot, entry_snapshot, list) = match update_result {
+        Ok(value) => value,
+        Err(error) => {
+            if moved_worktree {
+                let _ = run_git_command(
+                    &parent_root,
+                    &["worktree", "move", &next_path_string, &old_path_string],
+                )
+                .await;
+            }
+            let _ =
+                run_git_command(&parent_root, &["branch", "-m", &final_branch, &old_branch]).await;
+            return Err(error);
         }
-        let snapshot = entry.clone();
-        let list: Vec<_> = workspaces.values().cloned().collect();
-        (snapshot, list)
     };
-    write_workspaces(storage_path, &list)?;
+    if let Err(error) = write_workspaces(storage_path, &list) {
+        if moved_worktree {
+            let _ = run_git_command(
+                &parent_root,
+                &["worktree", "move", &next_path_string, &old_path_string],
+            )
+            .await;
+        }
+        let _ = run_git_command(&parent_root, &["branch", "-m", &final_branch, &old_branch]).await;
+        let mut workspaces = workspaces.lock().await;
+        if let Some(entry) = workspaces.get_mut(&id) {
+            *entry = old_snapshot;
+        }
+        return Err(error);
+    }
 
     if let Some(session) = sessions.lock().await.get(&entry_snapshot.id).cloned() {
         session

src-tauri/src/types.rs

@@ -329,6 +329,8 @@ pub(crate) struct WorkspaceSettings {
     pub(crate) launch_scripts: Option<Vec<LaunchScriptEntry>>,
     #[serde(default, rename = "worktreeSetupScript")]
     pub(crate) worktree_setup_script: Option<String>,
+    #[serde(default, rename = "worktreesFolder")]
+    pub(crate) worktrees_folder: Option<String>,
 }
 
 #[derive(Debug, Serialize, Deserialize, Clone)]
@@ -635,6 +637,8 @@ pub(crate) struct AppSettings {
     pub(crate) composer_code_block_copy_use_modifier: bool,
     #[serde(default = "default_workspace_groups", rename = "workspaceGroups")]
     pub(crate) workspace_groups: Vec<WorkspaceGroup>,
+    #[serde(default, rename = "globalWorktreesFolder")]
+    pub(crate) global_worktrees_folder: Option<String>,
     #[serde(default = "default_open_app_targets", rename = "openAppTargets")]
     pub(crate) open_app_targets: Vec<OpenAppTarget>,
     #[serde(default = "default_selected_open_app_id", rename = "selectedOpenAppId")]
@@ -1182,6 +1186,7 @@ impl Default for AppSettings {
             composer_list_continuation: default_composer_list_continuation(),
             composer_code_block_copy_use_modifier: default_composer_code_block_copy_use_modifier(),
             workspace_groups: default_workspace_groups(),
+            global_worktrees_folder: None,
             open_app_targets: default_open_app_targets(),
             selected_open_app_id: default_selected_open_app_id(),
         }

src-tauri/src/workspaces/tests.rs

@@ -1,7 +1,7 @@
 use std::collections::HashMap;
 use std::future::Future;
 use std::path::PathBuf;
-use std::sync::Arc;
+use std::sync::{Arc, Mutex as StdMutex};
 
 use super::settings::{apply_workspace_settings_update, sort_workspaces};
 use super::worktree::{
@@ -56,6 +56,7 @@ fn workspace_with_id_and_kind(
             launch_script: None,
             launch_scripts: None,
             worktree_setup_script: None,
+            worktrees_folder: None,
         },
     }
 }
@@ -390,6 +391,95 @@ fn rename_worktree_updates_name_when_unmodified() {
     });
 }
 
+#[test]
+fn rename_worktree_validates_worktree_root_before_branch_rename() {
+    run_async(async {
+        let temp_dir = std::env::temp_dir().join(format!("codex-monitor-test-{}", Uuid::new_v4()));
+        let repo_path = temp_dir.join("repo");
+        std::fs::create_dir_all(&repo_path).expect("create repo path");
+        let worktree_path = temp_dir.join("worktrees").join("parent").join("old");
+        std::fs::create_dir_all(&worktree_path).expect("create worktree path");
+
+        let invalid_root = temp_dir.join("not-a-directory");
+        std::fs::write(&invalid_root, "x").expect("create invalid root file");
+
+        let mut parent_settings = WorkspaceSettings::default();
+        parent_settings.worktrees_folder = Some(invalid_root.to_string_lossy().to_string());
+        let parent = WorkspaceEntry {
+            id: "parent".to_string(),
+            name: "Parent".to_string(),
+            path: repo_path.to_string_lossy().to_string(),
+            kind: WorkspaceKind::Main,
+            parent_id: None,
+            worktree: None,
+            settings: parent_settings,
+        };
+        let worktree = WorkspaceEntry {
+            id: "wt-3".to_string(),
+            name: "feature/old".to_string(),
+            path: worktree_path.to_string_lossy().to_string(),
+            kind: WorkspaceKind::Worktree,
+            parent_id: Some(parent.id.clone()),
+            worktree: Some(WorktreeInfo {
+                branch: "feature/old".to_string(),
+            }),
+            settings: WorkspaceSettings::default(),
+        };
+        let workspaces = Mutex::new(HashMap::from([
+            (parent.id.clone(), parent.clone()),
+            (worktree.id.clone(), worktree.clone()),
+        ]));
+        let sessions: Mutex<HashMap<String, Arc<WorkspaceSession>>> = Mutex::new(HashMap::new());
+        let app_settings = Mutex::new(AppSettings::default());
+        let storage_path = temp_dir.join("workspaces.json");
+
+        let calls: Arc<StdMutex<Vec<Vec<String>>>> = Arc::new(StdMutex::new(Vec::new()));
+        let result = rename_worktree_core(
+            worktree.id.clone(),
+            "feature/new".to_string(),
+            &temp_dir,
+            &workspaces,
+            &sessions,
+            &app_settings,
+            &storage_path,
+            |_| Ok(repo_path.clone()),
+            |_root, branch| {
+                let branch = branch.to_string();
+                async move { Ok(branch) }
+            },
+            |value| sanitize_worktree_name(value),
+            |_, _, current| Ok(current.to_path_buf()),
+            |_root, args| {
+                let calls = calls.clone();
+                let args: Vec<String> = args.iter().map(|value| value.to_string()).collect();
+                async move {
+                    calls
+                        .lock()
+                        .expect("lock")
+                        .push(args);
+                    Ok(())
+                }
+            },
+            |_entry, _default_bin, _codex_args, _codex_home| async move {
+                Err("spawn not expected".to_string())
+            },
+        )
+        .await;
+
+        let error = result.expect_err("expected invalid worktree root to fail");
+        assert!(error.contains("Failed to create worktree directory"));
+        assert!(calls.lock().expect("lock").is_empty());
+
+        let stored = workspaces.lock().await;
+        let entry = stored.get(&worktree.id).expect("stored entry");
+        assert_eq!(
+            entry.worktree.as_ref().map(|worktree| worktree.branch.as_str()),
+            Some("feature/old")
+        );
+        assert_eq!(entry.path, worktree.path);
+    });
+}
+
 #[test]
 fn remove_workspace_succeeds_when_parent_repo_folder_is_missing() {
     run_async(async {

src/features/settings/components/sections/SettingsEnvironmentsSection.tsx

@@ -11,8 +11,12 @@ type SettingsEnvironmentsSectionProps = {
   environmentDraftScript: string;
   environmentSavedScript: string | null;
   environmentDirty: boolean;
+  worktreesFolderDraft: string;
+  worktreesFolderSaved: string | null;
+  worktreesFolderDirty: boolean;
   onSetEnvironmentWorkspaceId: Dispatch<SetStateAction<string | null>>;
   onSetEnvironmentDraftScript: Dispatch<SetStateAction<string>>;
+  onSetWorktreesFolderDraft: Dispatch<SetStateAction<string>>;
   onSaveEnvironmentSetup: () => Promise<void>;
 };
 
@@ -24,14 +28,20 @@ export function SettingsEnvironmentsSection({
   environmentDraftScript,
   environmentSavedScript,
   environmentDirty,
+  worktreesFolderDraft,
+  worktreesFolderSaved,
+  worktreesFolderDirty,
   onSetEnvironmentWorkspaceId,
   onSetEnvironmentDraftScript,
+  onSetWorktreesFolderDraft,
   onSaveEnvironmentSetup,
 }: SettingsEnvironmentsSectionProps) {
+  const hasAnyChanges = environmentDirty || worktreesFolderDirty;
+
   return (
     <SettingsSection
       title="Environments"
-      subtitle="Configure per-project setup scripts that run after worktree creation."
+      subtitle="Configure per-project setup scripts and worktree locations."
     >
       {mainWorkspaces.length === 0 ? (
         <div className="settings-empty">No projects yet.</div>
@@ -116,12 +126,57 @@ export function SettingsEnvironmentsSection({
                 onClick={() => {
                   void onSaveEnvironmentSetup();
                 }}
-                disabled={environmentSaving || !environmentDirty}
+                disabled={environmentSaving || !hasAnyChanges}
               >
                 {environmentSaving ? "Saving..." : "Save"}
               </button>
             </div>
           </div>
+
+          <div className="settings-field">
+            <label className="settings-field-label" htmlFor="settings-worktrees-folder">
+              Worktrees folder
+            </label>
+            <div className="settings-help">
+              Custom location for worktrees. Leave empty to use the default location.
+            </div>
+            <div className="settings-field-row">
+              <input
+                id="settings-worktrees-folder"
+                type="text"
+                className="settings-input"
+                value={worktreesFolderDraft}
+                onChange={(event) => onSetWorktreesFolderDraft(event.target.value)}
+                placeholder="/path/to/worktrees"
+                disabled={environmentSaving}
+              />
+              <button
+                type="button"
+                className="ghost settings-button-compact"
+                onClick={async () => {
+                  try {
+                    const { open } = await import("@tauri-apps/plugin-dialog");
+                    const selected = await open({
+                      directory: true,
+                      multiple: false,
+                      title: "Select worktrees folder",
+                    });
+                    if (selected && typeof selected === "string") {
+                      onSetWorktreesFolderDraft(selected);
+                    }
+                  } catch (error) {
+                    pushErrorToast({
+                      title: "Failed to open folder picker",
+                      message: error instanceof Error ? error.message : String(error),
+                    });
+                  }
+                }}
+                disabled={environmentSaving}
+              >
+                Browse
+              </button>
+            </div>
+          </div>
         </>
       )}
     </SettingsSection>