官网

https://deno.land/x/denon@2.5.0

简介

denon是 deno 中 nodemon 的替代品。denon会监视文件的改变，并自动重新启动程序，重新编译更改的源代码。

安装

⚠️ Make sure you are using deno version ^1.6.0 to install this executable. You can upgrade running deno upgrade.

deno版本需要在^1.6以上

deno.land源

deno install -qAf --unstable https://deno.land/x/denon/denon.ts

nest.land源

deno install -qAf --unstable https://x.nest.land/denon/denon.ts

环境变量

mac环境，在终端输入open -e ~/.bash_profile添加如下内容

# denon
export PATH="/Users/zhouwei/.deno/bin:$PATH"

检查命令是否可用, 能打印信息即成功

$ denon --version

使用

直接使用

$ denon run app.ts$ denon run --allow-env app.ts

配置文件

1. 只是简单使用可以生成json配置文件
2. 如果较复杂及灵活的配置建议使用.ts配置文件，可以添加环境变量及代码块操作

生成配置文件

// 生成json配置文件
denon --init// 生成.ts配置文件
denon --init typescript

配置文件内容如下：

 // scripts.json
{"$schema": "https://deno.land/x/denon@2.5.0/schema.json","scripts": {"start": {"cmd": "deno run day1/hello.ts","desc": "run my app.ts file"},"fileServer": {"cmd": "deno run day1/fileServer.ts","desc": "run my fileServer.ts file"}}
}

// scripts.config.ts
import { DenonConfig } from "https://deno.land/x/denon@2.5.0/mod.ts";const config: DenonConfig = {scripts: {start: {cmd: "deno run day1/hello.ts",desc: "run my app.ts file",},fileServer: {cmd: "deno run day1/fileServer.ts",desc: "run my fileServer.ts file",},},
};export default config;

执行脚本

$ denon start
$ denon fileServer

环境配置

// scripts.json
{"scripts": {"start": {"cmd": "deno run app.ts","desc": "Run the main server.","env": {"PORT": 3000}}}
}

// scripts.config.ts
import { DenonConfig } from "https://deno.land/x/denon@2.5.0/mod.ts";
import { config as env } from "https://deno.land/x/dotenv/mod.ts";const config: DenonConfig = {scripts: {start: {cmd: "deno run day1/hello.ts",desc: "run my app.ts file",},fileServer: {cmd: "deno run day1/fileServer.ts",desc: "run my fileServer.ts file",env: env()},},
};export default config;

权限配置

{"allow": {"read": "/etc,/tmp", // --allow-read=/etc,/tmp"env": true // --allow-env},"allow": ["run", // --allow-run"net" // --allow-net],"scripts": {"start": {"cmd": "deno run app.ts","desc": "Run the main server.",// available options..."allow": ["env", "write"],"unstable": true// running `denon start` will resolve in// deno run --allow-env --allow-write --unstable app.ts"watch": true}}
}

import { DenonConfig } from "https://deno.land/x/denon@2.5.0/mod.ts";
import { config as env } from "https://deno.land/x/dotenv@v3.2.2/mod.ts";const config: DenonConfig = {scripts: {start: {cmd: "deno run day1/hello.ts",desc: "run my app.ts file",},fileServer: {cmd: "deno run day1/fileServer.ts",desc: "run my fileServer.ts file",env: env(),allow: ["net", "read"],},},
};export default config;