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Honor kill_after_timeout with output streams - #2189
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Pull request overview
This PR fixes Git.execute(..., kill_after_timeout=...) so timeouts are enforced even when output_stream is provided, aligning behavior with the documented intent and closing the gap described in #1762.
Changes:
- Start and manage the existing timeout watchdog during the
output_streamexecution path, keeping it active until the subprocess exits. - Refactor timeout error construction into a helper used by both
communicate()andoutput_streampaths. - Add a regression test where the child closes stdout early and then sleeps, ensuring
kill_after_timeoutstill triggers.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
git/cmd.py |
Starts/cancels the timeout watchdog for output_stream runs and centralizes timeout error creation. |
test/test_git.py |
Adds a non-Windows regression test to confirm kill_after_timeout is honored with output_stream. |
Comments suppressed due to low confidence (1)
git/cmd.py:1490
communicate()starts the watchdog timer but only cancels it on the success path. Ifproc.communicate()raises (e.g., due to an I/O error), the timer remains scheduled and can later kill the process (or a reused PID) afterexecute()has already failed. Cancel the watchdog in afinallyto ensure it is always cleaned up.
def communicate() -> Tuple[AnyStr, AnyStr]:
assert watchdog is not None
assert kill_check is not None
watchdog.start()
out, err = proc.communicate()
watchdog.cancel()
if kill_check.is_set():
err = make_timeout_error()
return out, err
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The timeout error message formats `timeout` with `%d`, but `kill_after_timeout` is typed as `float` and is commonly passed as a non-integer (e.g., 0.1). This can produce a misleading message (truncation to 0) and may raise a formatting error depending on Python behavior. Format it as a float (or generic number) instead. Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Byron
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Thanks a lot, this circumstantially looks good to me.
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Summary
Fixes #1762.
Validation
AI agent disclosure
This pull request was prepared and submitted by OpenAI Codex acting as an AI agent through the contributor account.