@steelbrain/spawn
Version:
Process spawning APIs beautified
125 lines (124 loc) • 6.24 kB
JavaScript
;
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.spawnFile = exports.spawn = void 0;
var child_process_1 = require("child_process");
function spawnInternal(command, args, options) {
return __awaiter(this, void 0, void 0, function () {
var spawnedProcess, promise;
return __generator(this, function (_a) {
spawnedProcess = child_process_1.spawn(command, args, options);
promise = new Promise(function (resolve, reject) {
var output = {
stdout: spawnedProcess.stdout ? [] : null,
stderr: spawnedProcess.stderr ? [] : null,
};
spawnedProcess.on('error', reject);
if (spawnedProcess.stdout) {
spawnedProcess.stdout.on('data', function (chunk) {
output.stdout.push(chunk);
if (options.handleStdout) {
options.handleStdout(chunk);
}
});
}
if (spawnedProcess.stderr) {
spawnedProcess.stderr.on('data', function (chunk) {
output.stderr.push(chunk);
if (options.handleStderr) {
options.handleStderr(chunk);
}
});
}
spawnedProcess.on('close', function (code) {
var outputStdout = null;
if (output.stdout != null) {
outputStdout =
options.encoding === null || options.encoding === 'buffer'
? Buffer.concat(output.stdout)
: output.stdout.join('');
}
var outputStderr = null;
if (output.stderr != null) {
outputStderr =
options.encoding === null || options.encoding === 'buffer'
? Buffer.concat(output.stderr)
: output.stderr.join('');
}
resolve({
exitCode: code,
stdout: outputStdout,
stderr: outputStderr,
});
});
});
options.handleChildProcess(spawnedProcess);
return [2 /*return*/, promise];
});
});
}
function spawn(command, args, options) {
var spawnedProcess;
var promise = spawnInternal(command, args, __assign(__assign({}, options), { handleChildProcess: function (_spawnedProcess) {
var _a;
spawnedProcess = _spawnedProcess;
(_a = options === null || options === void 0 ? void 0 : options.handleChildProcess) === null || _a === void 0 ? void 0 : _a.call(options, _spawnedProcess);
} }));
promise.kill = function (signal) {
// TODO: kill all subprocesses on windows with wmic?
return spawnedProcess.kill(signal);
};
return promise;
}
exports.spawn = spawn;
function spawnFile(filePath, args, options) {
return spawn(process.execPath, [filePath].concat(args), options);
// ^ TS is drunk, force override the type
}
exports.spawnFile = spawnFile;