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fix(statusline): unset a stale user statusline var, write the exporter script atomically

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Three small follow-ups from the #361 review.

A tmux setenv survives respawn-pane, so _configureStatusLineUserCommand
returning early when the user has no statusline left a previously
exported CODEMAN_USER_STATUSLINE_CMD in place: a user who deleted their
own statusline kept getting the stale one wrapped, and lost Codeman's
footer print-through, until the tmux session was recreated. It now
issues `setenv -u` in that case, the same shape as the effort-level
cleanup in applyEnvOverrides.

ensureStatusLineExporterScript truncated and rewrote a script that live
sessions execute on every statusline render, and chmod'd it after the
write. It now writes a temp file next to the target, chmods that, and
rename()s it into place.

The non-tmux direct-PTY fallback carries no exporter; that is now stated
at the spawn site and in the architecture-invariants paragraph rather
than left as a silent gap.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
This commit is contained in:
Codeman maintainer
2026-09-14 15:59:00 +02:00
parent 707ea345eb
commit fa1ea8d9fe
5 changed files with 66 additions and 6 deletions
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src/hooks-config.ts
+8 -2
View File
@@ -1023,8 +1023,14 @@ export async function ensureStatusLineExporterScript(): Promise<string> {
// Doesn't exist yet.
}
if (current !== desired) {
await writeFile(scriptPath, desired);
await chmod(scriptPath, 0o755);
// Temp file + rename: live sessions execute this script on every statusline
// render, and a truncate-then-write (plus a chmod AFTER the write) opened two
// windows in which Claude Code could run an empty or non-executable file.
// rename() swaps the complete, already-executable file in atomically.
const tmpPath = `${scriptPath}.${process.pid}.${Date.now()}.tmp`;
await writeFile(tmpPath, desired);
await chmod(tmpPath, 0o755);
await rename(tmpPath, scriptPath);
}
return scriptPath;
}