🐛 fix(vscode): 实施启动自动丢掉残留 worktree 再新建

vscode/src/git/worktree.ts

@@ -7,6 +7,7 @@ import { execFile } from 'node:child_process'
 import { promises as fsp, readdirSync, readFileSync, readlinkSync } from 'node:fs'
 import * as os from 'node:os'
 import * as path from 'node:path'
+import { deleteLocalBranch } from './branchSync'
 
 /**
  * 把开头的 `~` 展开为用户 home 目录。execFile 不走 shell，传给它的命令/路径
@@ -28,7 +29,7 @@ export function resolveWorktreePath(stored: string, workspaceRoot: string): stri
 
 export interface WorktreeOpts {
   workspaceRoot: string
-  /** 模板 path；① 已有 live worktree 时返回值可能与此不同。 */
+  /** 模板 path；返回值即此路径。 */
   worktreePath: string
   branch: string
 }
@@ -104,43 +105,33 @@ async function findLiveWorktreeForBranch(workspaceRoot: string, branch: string):
   return undefined
 }
 
-async function localBranchExists(workspaceRoot: string, branch: string): Promise<boolean> {
-  try {
-    await runGit(workspaceRoot, ['show-ref', '--verify', '--quiet', `refs/heads/${branch}`])
-    return true
-  }
-  catch {
-    return false
-  }
-}
-
 /**
- * 保证这个 feature 有一个可用 worktree。优先复用 live，绝不删 feature 分支
- * —— 拖到「进行中」是开始实施，不是销毁上次进度。
+ * 拖到「进行中」= 从当前 HEAD 全新实施：清 leftover worktree / 本地分支，再 `add -b`。
  */
 export async function ensureWorktree(opts: WorktreeOpts): Promise<string> {
   const { workspaceRoot, branch } = opts
   const worktreePath = path.resolve(opts.worktreePath)
 
-  // ① 该 branch 已在某个 live worktree → 原路返回（path ≠ 模板也不搬，避免丢未提交改动）
+  // ① 该 branch 的 live worktree 可能不在模板 path → kill + 整目录删掉
   const live = await findLiveWorktreeForBranch(workspaceRoot, branch)
   if (live) {
-    console.log(`[superpowers] 复用已有 worktree ${live} (${branch})`)
-    return live
+    killProcessesUsingWorktree(live)
+    await removeWorktreeDir(workspaceRoot, live)
   }
 
-  // ② 模板 path 被垃圾占着（存在，但不是本仓库该 branch 的 live worktree）
+  // ② 模板 path 仍被垃圾目录占着 → 同样 kill + remove，否则 ④ add 撞路径
   if (await pathExists(worktreePath)) {
     killProcessesUsingWorktree(worktreePath)
     await removeWorktreeDir(workspaceRoot, worktreePath)
-    console.log(`[superpowers] 已清模板路径垃圾 ${worktreePath}`)
   }
 
-  const branchExists = await localBranchExists(workspaceRoot, branch)
-  const addArgs = branchExists
-    ? ['worktree', 'add', worktreePath, branch] // ③ 有分支无 live worktree → 不加 -b，挂上已有分支，保留 commit
-    : ['worktree', 'add', worktreePath, '-b', branch] // ④ 分支也不存在 → -b 新建
-  await runGit(workspaceRoot, addArgs, 'git worktree add')
+  // ③ leftover 本地分支必须删掉；失败不能静默，否则 ④ `add -b` 撞同名分支
+  const deleted = await deleteLocalBranch(workspaceRoot, branch)
+  if (!deleted.ok)
+    throw new Error(`删除本地分支失败 ${branch}: ${deleted.stderr || deleted.stdout}`)
+
+  // ④ 始终 -b 从当前 HEAD 新建，不挂旧分支
+  await runGit(workspaceRoot, ['worktree', 'add', worktreePath, '-b', branch], 'git worktree add')
   return worktreePath
 }