126 lines
3.3 KiB
JavaScript
126 lines
3.3 KiB
JavaScript
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.default = void 0;
|
|
|
|
var _os = _interopRequireDefault(require("os"));
|
|
|
|
var _cacache = _interopRequireDefault(require("cacache"));
|
|
|
|
var _findCacheDir = _interopRequireDefault(require("find-cache-dir"));
|
|
|
|
var _workerFarm = _interopRequireDefault(require("worker-farm"));
|
|
|
|
var _serializeJavascript = _interopRequireDefault(require("serialize-javascript"));
|
|
|
|
var _isWsl = _interopRequireDefault(require("is-wsl"));
|
|
|
|
var _minify = _interopRequireDefault(require("./minify"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
|
|
|
const worker = require.resolve('./worker');
|
|
|
|
class TaskRunner {
|
|
constructor(options = {}) {
|
|
const {
|
|
cache,
|
|
parallel
|
|
} = options;
|
|
this.cacheDir = cache === true ? (0, _findCacheDir.default)({
|
|
name: 'terser-webpack-plugin'
|
|
}) || _os.default.tmpdir() : cache; // In some cases cpus() returns undefined
|
|
// https://github.com/nodejs/node/issues/19022
|
|
|
|
const cpus = _os.default.cpus() || {
|
|
length: 1
|
|
}; // WSL sometimes freezes, error seems to be on the WSL side
|
|
// https://github.com/webpack-contrib/terser-webpack-plugin/issues/21
|
|
|
|
this.maxConcurrentWorkers = _isWsl.default ? 1 : parallel === true ? cpus.length - 1 : Math.min(Number(parallel) || 0, cpus.length - 1);
|
|
}
|
|
|
|
run(tasks, callback) {
|
|
/* istanbul ignore if */
|
|
if (!tasks.length) {
|
|
callback(null, []);
|
|
return;
|
|
}
|
|
|
|
if (this.maxConcurrentWorkers > 1) {
|
|
const workerOptions = process.platform === 'win32' ? {
|
|
maxConcurrentWorkers: this.maxConcurrentWorkers,
|
|
maxConcurrentCallsPerWorker: 1
|
|
} : {
|
|
maxConcurrentWorkers: this.maxConcurrentWorkers
|
|
};
|
|
this.workers = (0, _workerFarm.default)(workerOptions, worker);
|
|
|
|
this.boundWorkers = (options, cb) => {
|
|
try {
|
|
this.workers((0, _serializeJavascript.default)(options), cb);
|
|
} catch (error) {
|
|
// worker-farm can fail with ENOMEM or something else
|
|
cb(error);
|
|
}
|
|
};
|
|
} else {
|
|
this.boundWorkers = (options, cb) => {
|
|
try {
|
|
cb(null, (0, _minify.default)(options));
|
|
} catch (error) {
|
|
cb(error);
|
|
}
|
|
};
|
|
}
|
|
|
|
let toRun = tasks.length;
|
|
const results = [];
|
|
|
|
const step = (index, data) => {
|
|
toRun -= 1;
|
|
results[index] = data;
|
|
|
|
if (!toRun) {
|
|
callback(null, results);
|
|
}
|
|
};
|
|
|
|
tasks.forEach((task, index) => {
|
|
const enqueue = () => {
|
|
this.boundWorkers(task, (error, data) => {
|
|
const result = error ? {
|
|
error
|
|
} : data;
|
|
|
|
const done = () => step(index, result);
|
|
|
|
if (this.cacheDir && !result.error) {
|
|
_cacache.default.put(this.cacheDir, (0, _serializeJavascript.default)(task.cacheKeys), JSON.stringify(data)).then(done, done);
|
|
} else {
|
|
done();
|
|
}
|
|
});
|
|
};
|
|
|
|
if (this.cacheDir) {
|
|
_cacache.default.get(this.cacheDir, (0, _serializeJavascript.default)(task.cacheKeys)).then(({
|
|
data
|
|
}) => step(index, JSON.parse(data)), enqueue);
|
|
} else {
|
|
enqueue();
|
|
}
|
|
});
|
|
}
|
|
|
|
exit() {
|
|
if (this.workers) {
|
|
_workerFarm.default.end(this.workers);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
exports.default = TaskRunner; |