mirror of https://git.tuxpa.in/a/code-server.git
126 lines
3.2 KiB
TypeScript
126 lines
3.2 KiB
TypeScript
/*---------------------------------------------------------------------------------------------
|
|
* Copyright (c) Microsoft Corporation. All rights reserved.
|
|
* Licensed under the MIT License. See License.txt in the project root for license information.
|
|
*--------------------------------------------------------------------------------------------*/
|
|
|
|
'use strict';
|
|
|
|
import * as fancyLog from 'fancy-log';
|
|
import * as ansiColors from 'ansi-colors';
|
|
|
|
export interface BaseTask {
|
|
displayName?: string;
|
|
taskName?: string;
|
|
_tasks?: Task[];
|
|
}
|
|
export interface PromiseTask extends BaseTask {
|
|
(): Promise<void>;
|
|
}
|
|
export interface StreamTask extends BaseTask {
|
|
(): NodeJS.ReadWriteStream;
|
|
}
|
|
export interface CallbackTask extends BaseTask {
|
|
(cb?: (err?: any) => void): void;
|
|
}
|
|
|
|
export type Task = PromiseTask | StreamTask | CallbackTask;
|
|
|
|
function _isPromise(p: Promise<void> | NodeJS.ReadWriteStream): p is Promise<void> {
|
|
if (typeof (<any>p).then === 'function') {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function _renderTime(time: number): string {
|
|
return `${Math.round(time)} ms`;
|
|
}
|
|
|
|
async function _execute(task: Task): Promise<void> {
|
|
const name = task.taskName || task.displayName || `<anonymous>`;
|
|
if (!task._tasks) {
|
|
fancyLog('Starting', ansiColors.cyan(name), '...');
|
|
}
|
|
const startTime = process.hrtime();
|
|
await _doExecute(task);
|
|
const elapsedArr = process.hrtime(startTime);
|
|
const elapsedNanoseconds = (elapsedArr[0] * 1e9 + elapsedArr[1]);
|
|
if (!task._tasks) {
|
|
fancyLog(`Finished`, ansiColors.cyan(name), 'after', ansiColors.magenta(_renderTime(elapsedNanoseconds / 1e6)));
|
|
}
|
|
}
|
|
|
|
async function _doExecute(task: Task): Promise<void> {
|
|
// Always invoke as if it were a callback task
|
|
return new Promise((resolve, reject) => {
|
|
if (task.length === 1) {
|
|
// this is a callback task
|
|
task((err) => {
|
|
if (err) {
|
|
return reject(err);
|
|
}
|
|
resolve();
|
|
});
|
|
return;
|
|
}
|
|
|
|
const taskResult = task();
|
|
|
|
if (typeof taskResult === 'undefined') {
|
|
// this is a sync task
|
|
resolve();
|
|
return;
|
|
}
|
|
|
|
if (_isPromise(taskResult)) {
|
|
// this is a promise returning task
|
|
taskResult.then(resolve, reject);
|
|
return;
|
|
}
|
|
|
|
// this is a stream returning task
|
|
taskResult.on('end', _ => resolve());
|
|
taskResult.on('error', err => reject(err));
|
|
});
|
|
}
|
|
|
|
export function series(...tasks: Task[]): PromiseTask {
|
|
const result = async () => {
|
|
for (let i = 0; i < tasks.length; i++) {
|
|
await _execute(tasks[i]);
|
|
}
|
|
};
|
|
result._tasks = tasks;
|
|
return result;
|
|
}
|
|
|
|
export function parallel(...tasks: Task[]): PromiseTask {
|
|
const result = async () => {
|
|
await Promise.all(tasks.map(t => _execute(t)));
|
|
};
|
|
result._tasks = tasks;
|
|
return result;
|
|
}
|
|
|
|
export function define(name: string, task: Task): Task {
|
|
if (task._tasks) {
|
|
// This is a composite task
|
|
const lastTask = task._tasks[task._tasks.length - 1];
|
|
|
|
if (lastTask._tasks || lastTask.taskName) {
|
|
// This is a composite task without a real task function
|
|
// => generate a fake task function
|
|
return define(name, series(task, () => Promise.resolve()));
|
|
}
|
|
|
|
lastTask.taskName = name;
|
|
task.displayName = name;
|
|
return task;
|
|
}
|
|
|
|
// This is a simple task
|
|
task.taskName = name;
|
|
task.displayName = name;
|
|
return task;
|
|
}
|