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fix(coding-agent): fix windows hanging when descendants inherit stdout/stderr handles (#2389)

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This commit is contained in:
Duncan Ogilvie
2026-03-19 08:34:52 +01:00
committed by GitHub
parent ff1ea12324
commit 25b185f398
5 changed files with 247 additions and 36 deletions
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33
packages/coding-agent/src/core/exec.ts
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@@ -3,6 +3,7 @@
*/
import { spawn } from "node:child_process";
import { waitForChildProcess } from "../utils/child-process.js";
/**
* Options for executing shell commands.
@@ -85,20 +86,22 @@ export async function execCommand(
stderr += data.toString();
});
proc.on("close", (code) => {
if (timeoutId) clearTimeout(timeoutId);
if (options?.signal) {
options.signal.removeEventListener("abort", killProcess);
}
resolve({ stdout, stderr, code: code ?? 0, killed });
});
proc.on("error", (_err) => {
if (timeoutId) clearTimeout(timeoutId);
if (options?.signal) {
options.signal.removeEventListener("abort", killProcess);
}
resolve({ stdout, stderr, code: 1, killed });
});
// Wait for process termination without hanging on inherited stdio handles
// held open by detached descendants.
waitForChildProcess(proc)
.then((code) => {
if (timeoutId) clearTimeout(timeoutId);
if (options?.signal) {
options.signal.removeEventListener("abort", killProcess);
}
resolve({ stdout, stderr, code: code ?? 0, killed });
})
.catch((_err) => {
if (timeoutId) clearTimeout(timeoutId);
if (options?.signal) {
options.signal.removeEventListener("abort", killProcess);
}
resolve({ stdout, stderr, code: 1, killed });
});
});
}

43
packages/coding-agent/src/core/tools/bash.ts
View File

@@ -5,6 +5,7 @@ import { join } from "node:path";
import type { AgentTool } from "@mariozechner/pi-agent-core";
import { type Static, Type } from "@sinclair/typebox";
import { spawn } from "child_process";
import { waitForChildProcess } from "../../utils/child-process.js";
import { getShellConfig, getShellEnv, killProcessTree } from "../../utils/shell.js";
import { DEFAULT_MAX_BYTES, DEFAULT_MAX_LINES, formatSize, type TruncationResult, truncateTail } from "./truncate.js";
@@ -98,13 +99,6 @@ export function createLocalBashOperations(): BashOperations {
child.stderr.on("data", onData);
}
// Handle shell spawn errors
child.on("error", (err) => {
if (timeoutHandle) clearTimeout(timeoutHandle);
if (signal) signal.removeEventListener("abort", onAbort);
reject(err);
});
// Handle abort signal - kill entire process tree
const onAbort = () => {
if (child.pid) {
@@ -120,23 +114,30 @@ export function createLocalBashOperations(): BashOperations {
}
}
// Handle process exit
child.on("close", (code) => {
if (timeoutHandle) clearTimeout(timeoutHandle);
if (signal) signal.removeEventListener("abort", onAbort);
// Handle shell spawn errors and wait for the process to terminate without hanging
// on inherited stdio handles held by detached descendants.
waitForChildProcess(child)
.then((code) => {
if (timeoutHandle) clearTimeout(timeoutHandle);
if (signal) signal.removeEventListener("abort", onAbort);
if (signal?.aborted) {
reject(new Error("aborted"));
return;
}
if (signal?.aborted) {
reject(new Error("aborted"));
return;
}
if (timedOut) {
reject(new Error(`timeout:${timeout}`));
return;
}
if (timedOut) {
reject(new Error(`timeout:${timeout}`));
return;
}
resolve({ exitCode: code });
});
resolve({ exitCode: code });
})
.catch((err) => {
if (timeoutHandle) clearTimeout(timeoutHandle);
if (signal) signal.removeEventListener("abort", onAbort);
reject(err);
});
});
},
};