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fix: add macOS support for foreground execution - #2

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fix: add macOS support for foreground execution#2
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fix/macos-foreground-execution

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@lingion lingion commented Jul 20, 2026

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See MACOS_FIX.md for details. Resolves macOS foreground execution blocked by missing process identity and launcher support.

- Implement _read_process_identity_darwin() using ps lstart
- Implement _darwin_process_group_alive() using ps pgid
- Add launch_macos_terminal() fallback to open -a Terminal
- Fix foreground_child_and_group_status() to support macOS

Resolves: macOS foreground execution fails with 'identity is unverifiable'
Tested: wrapper generates artifacts, Terminal launcher works via fallback

Fixes: issue with macOS v1.1 acceptance tests blocked by missing macOS support
@lingion

lingion commented Jul 20, 2026

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Withdrawn: incomplete testing, will resubmit after full acceptance pass

@lingion lingion closed this Jul 20, 2026

@Xuan0629 Xuan0629 left a comment

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Request changes — macOS foreground execution gate not yet met

感谢推进 macOS 支持。方向可以继续:Darwin process identity、process-group liveness 和 Terminal.app launcher 都是需要补齐的边界;但这个 PR 目前不能合并,也不能作为 v1.1.0 的 macOS release gate 证据。

0. 当前阻塞:CI 必须先恢复绿色

PR run 29722204297 已失败。基于 PR head bc1af54 在干净 worktree 复现:

56 passed, 2 failed

失败的是现有两个 macOS launcher 用例:

  • test_launches_terminal_app_with_wrapper_command_and_returns_handoff_pid
  • test_macos_launcher_encodes_special_character_paths_as_one_command

根因是 launcher 已从 osascript-only 改为 osascript -> open -a Terminal 两段式 fallback,但测试仍断言 osascript argv;stub 中 returncode 未显式设为 0,因此走入 fallback。请不要仅为了让旧断言通过而删除 fallback;请将测试改为准确验证新契约。

1. 必须补齐的单元测试(本 PR 内)

请添加/更新测试,至少覆盖下列可验证行为:

  1. Darwin process identity

    • ps -o lstart= -p PID 有效输出时产生稳定的 darwin:<identity>
    • 空输出、超时、ps/OSError、无效 PID 时返回 None;这些情况不能被上层当作已退出。
  2. Darwin child/group liveness 与 fail-closed resume

    • child identity 相同:live
    • child 已消失且 group 确认为空:dead
    • child 已消失但 group 仍有成员:live
    • 任何 ps 错误、空/畸形数据、identity 不可验证:unknown
    • unknown 时必须阻止 duplicate dispatch 和 resume,不能将其降级推断成 dead
  3. Terminal.app launcher

    • osascript 成功(明确 returncode == 0)时只走 primary path;
    • osascript 非零退出时走 open -a Terminal fallback;
    • osascript 的 Popen() 本身抛出 OSError 时也走 fallback;当前该异常发生在 try 之外,会直接中断;
    • osascript 超时后的 fail-closed/fallback 行为;
    • fallback 成功和失败;
    • 含空格、引号、;$ 的 workdir/invocation path 仍生成安全、单一的 wrapper command;
    • 维持不注入 Terminal 后续输入、不自动审批、不回退 headless 的边界。

2. 必须提供真实 macOS Terminal.app 验证证据

Linux 单测不能替代此 gate。请依据 docs/foreground-execution-macos-validation.md,在真实 macOS 的可见原生 Terminal.app 上分别对 Claude 和 Codex 运行并在 PR 中贴出可复现命令、环境版本、artifact 路径/关键 JSON 与结果摘要。六项均须通过:

  1. 原生人工审批可见且由人操作;
  2. zero exit 后正确 completion/reconcile;
  3. non-zero exit 不会被写成 success;
  4. 关闭/中断 Terminal.app 后 fail closed;
  5. wrapper 或 child/process group 可能仍活时,duplicate dispatch 被阻止;
  6. 仅在 child/process group 已被证明死亡后允许 resume。

ps lstart 的实际 macOS 行为无法提供足够的 process-identity 证据,必须保持 unknown/拒绝恢复,或换成可证明满足该安全条件的实现;不能以“看起来存在/不存在”替代死亡证明。

3. PR hygiene / scope

  • PR 描述提到 MACOS_FIX.md,但该文件不在分支中。请提交该验证材料,或删掉该失效引用并将完整步骤和证据写进 PR body。
  • 保持变更限于 macOS foreground 支持及其测试/验证文档;不要顺带修改版本、tag、PyPI/GitHub Release 或加入其他产品功能。
  • 完成后请重新跑并贴出:
PYTHONPATH=$PWD:$PWD/src .venv/bin/python -m pytest -q
PYTHONPATH=$PWD:$PWD/src .venv/bin/python -m pytest -q -W error::DeprecationWarning

并等待 GitHub Actions 对新 head 变为 green 后再请求复审。

Acceptance criteria

重新审查的前提:CI 全绿、以上单测存在且通过、真实 macOS Claude/Codex 六项验证证据完整,并且仍严格维持 native manual approval、无输入注入、无自动审批、无重试/无 headless fallback、serial-only、未知状态 fail-closed。

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