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fix(core): disable detached mode in Bun to prevent immediate SIGHUP of child processes #22620

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Merged
scidomino merged 1 commit into from
Apr 21, 2026
Merged

fix(core): disable detached mode in Bun to prevent immediate SIGHUP of child processes #22620

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8 changes: 7 additions & 1 deletion packages/core/src/services/shellExecutionService.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -529,12 +529,18 @@ export class ShellExecutionService {
cwd: finalCwd,
} = prepared;

// Bun's child_process does not properly call setsid() for detached
// processes, leaving children in the parent's session without a
// controlling terminal. They receive SIGHUP immediately. Disable
// detached mode in Bun; killProcessGroup already falls back to
// direct-pid kill when the group kill fails.
const isBun = 'bun' in process.versions;
const child = cpSpawn(finalExecutable, finalArgs, {
cwd: finalCwd,
stdio: ['ignore', 'pipe', 'pipe'],
windowsVerbatimArguments: isWindows ? false : undefined,
shell: false,
detached: !isWindows,
detached: !isWindows && !isBun,
env: finalEnv,
});

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