a6eebb940f
* feat: improve code * feat: update docs * feat: update docs * Update index.md * Update features.md * Update when.md * Update contributing.md * Update translations.md * feat: clean up * Add files via upload * Update the-first-app.md * Update plugins.md * Update a-b-c.md * Update blocks.md * feat: update docs * Add files via upload * Update charts.md * feat: update navs * Update index.md * Update index.md * Update features.md * Update index.md * Update docker-compose.md * Update create-nocobase-app.md * Update git-clone.md * Update contributing.md * Update translations.md * Update plugins.md * Update the-first-app.md * Add files via upload * Update charts.md * Update charts.md * Update a-b-c.md * Update collections.md * Update menus.md * Update menus.md Co-authored-by: Zhou <zhou.working@gmail.com>
99 lines
2.7 KiB
Markdown
99 lines
2.7 KiB
Markdown
# 命令行
|
||
|
||
## 简介
|
||
|
||
NocoBase Server Application 除了用作 WEB 服务器以外,也是个强大可扩展的 CLI 工具。
|
||
|
||
新建一个 `app.js` 文件,代码如下:
|
||
|
||
```ts
|
||
const Application = require('@nocobase/server');
|
||
|
||
// 此处省略具体配置
|
||
const app = new Application({/*...*/});
|
||
|
||
app.runAsCLI();
|
||
```
|
||
|
||
以 `runAsCLI()` 方式运行的 app.js 是一个 CLI,在命令行工具就可以像这样操作了:
|
||
|
||
```bash
|
||
node app.js install # 安装
|
||
node app.js start # 启动
|
||
```
|
||
|
||
为了更好的开发、构建和部署 NocoBase 应用,NocoBase 内置了许多命令,详情查看 [NocoBase CLI](/api/cli) 章节。
|
||
|
||
## 自定义 Command
|
||
|
||
NocoBase CLI 的设计思想与 [Laravel Artisan](https://laravel.com/docs/9.x/artisan) 非常相似,都是可扩展的。NocoBase CLI 基于 [commander](https://www.npmjs.com/package/commander) 实现,可以这样扩展 Command:
|
||
|
||
```ts
|
||
app
|
||
.command('echo')
|
||
.option('-v, --version');
|
||
.action(async ([options]) => {
|
||
console.log('Hello World!');
|
||
if (options.version) {
|
||
console.log('Current version:', app.getVersion());
|
||
}
|
||
});
|
||
```
|
||
|
||
这个方法定义了以下命令:
|
||
|
||
```bash
|
||
yarn nocobase echo
|
||
# Hello World!
|
||
yarn nocobase echo -v
|
||
# Hello World!
|
||
# Current version: 0.7.4-alpha.7
|
||
```
|
||
|
||
更多 API 细节可参考 [Application.command()](/api/server/application#command) 部分。
|
||
|
||
## 示例
|
||
|
||
### 定义导出数据表的命令
|
||
|
||
如果我们希望把应用的数据表中的数据导出成 JSON 文件,可以定义一个如下的子命令:
|
||
|
||
```ts
|
||
import path from 'path';
|
||
import * as fs from 'fs/promises';
|
||
|
||
class MyPlugin extends Plugin {
|
||
load() {
|
||
this.app
|
||
.command('export')
|
||
.option('-o, --output-dir')
|
||
.action(async (options, ...collections) => {
|
||
const { outputDir = path.join(process.env.PWD, 'storage') } = options;
|
||
await collections.reduce((promise, collection) => promise.then(async () => {
|
||
if (!this.db.hasCollection(collection)) {
|
||
console.warn('No such collection:', collection);
|
||
return;
|
||
}
|
||
|
||
const repo = this.db.getRepository(collection);
|
||
const data = repo.find();
|
||
await fs.writeFile(path.join(outputDir, `${collection}.json`), JSON.stringify(data), { mode: 0o644 });
|
||
}), Promise.resolve());
|
||
});
|
||
}
|
||
}
|
||
```
|
||
|
||
注册和激活插件之后在命令行调用:
|
||
|
||
```bash
|
||
mkdir -p ./storage/backups
|
||
yarn nocobase export -o ./storage/backups users
|
||
```
|
||
|
||
执行后会生成 `./storage/backups/users.json` 文件包含数据表中的数据。
|
||
|
||
## 小结
|
||
|
||
本章所涉及示例代码整合在 [packages/samples/command](https://github.com/nocobase/nocobase/tree/main/packages/samples/command) 包中,可以直接在本地运行,查看效果。
|