xcodemcp
Version:
Model Context Protocol server for Xcode build automation and log parsing
64 lines • 2.64 kB
JavaScript
import { spawn } from 'child_process';
export class JXAExecutor {
/**
* Execute a JavaScript for Automation (JXA) script
* @param script - The JXA script to execute
* @param timeoutMs - Timeout in milliseconds (default: 30 seconds)
* @returns Promise that resolves with the script output or rejects with an error
*/
static async execute(script, timeoutMs = 30000) {
return new Promise((resolve, reject) => {
try {
const osascript = spawn('osascript', ['-l', 'JavaScript', '-e', script]);
let stdout = '';
let stderr = '';
// Add cleanup handlers to prevent process leaks
const cleanup = () => {
if (osascript && !osascript.killed) {
try {
osascript.kill('SIGTERM');
}
catch (killError) {
// Ignore kill errors
}
}
};
// Set a timeout to prevent hanging
const timeout = setTimeout(() => {
cleanup();
reject(new Error(`JXA execution timed out after ${timeoutMs / 1000} seconds`));
}, timeoutMs);
osascript.stdout?.on('data', (data) => {
stdout += data.toString();
});
osascript.stderr?.on('data', (data) => {
stderr += data.toString();
});
osascript.on('close', (code) => {
clearTimeout(timeout);
try {
if (code !== 0) {
reject(new Error(`JXA execution failed: ${stderr}`));
}
else {
resolve(stdout.trim());
}
}
catch (handlerError) {
// Prevent any handler errors from crashing
reject(new Error(`JXA handler error: ${handlerError}`));
}
});
osascript.on('error', (error) => {
clearTimeout(timeout);
cleanup();
reject(new Error(`Failed to spawn osascript: ${error.message}`));
});
}
catch (spawnError) {
reject(new Error(`Failed to create JXA process: ${spawnError}`));
}
});
}
}
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