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74 lines
1.9 KiB
JavaScript

'use strict';
var isWin = process.platform === 'win32';
var resolveCommand = require('./resolveCommand');
var isNode10 = process.version.indexOf('v0.10.') === 0;
function notFoundError(command, syscall) {
var err;
err = new Error(syscall + ' ' + command + ' ENOENT');
err.code = err.errno = 'ENOENT';
err.syscall = syscall + ' ' + command;
return err;
}
function hookChildProcess(cp, parsed) {
var originalEmit;
if (!isWin) {
return;
}
originalEmit = cp.emit;
cp.emit = function (name, arg1) {
var err;
// If emitting "exit" event and exit code is 1, we need to check if
// the command exists and emit an "error" instead
// See: https://github.com/IndigoUnited/node-cross-spawn/issues/16
if (name === 'exit') {
err = verifyENOENT(arg1, parsed, 'spawn');
if (err) {
return originalEmit.call(cp, 'error', err);
}
}
return originalEmit.apply(cp, arguments);
};
}
function verifyENOENT(status, parsed) {
if (isWin && status === 1 && !parsed.file) {
return notFoundError(parsed.original, 'spawn');
}
return null;
}
function verifyENOENTSync(status, parsed) {
if (isWin && status === 1 && !parsed.file) {
return notFoundError(parsed.original, 'spawnSync');
}
// If we are in node 10, then we are using spawn-sync; if it exited
// with -1 it probably means that the command does not exist
if (isNode10 && status === -1) {
parsed.file = isWin ? parsed.file : resolveCommand(parsed.original);
if (!parsed.file) {
return notFoundError(parsed.original, 'spawnSync');
}
}
return null;
}
module.exports.hookChildProcess = hookChildProcess;
module.exports.verifyENOENT = verifyENOENT;
module.exports.verifyENOENTSync = verifyENOENTSync;
module.exports.notFoundError = notFoundError;