unionfs 组合文件npm包参考使用

unionfs 是一个灵活强大的组合fs npm 包，可以方便的进行多fs 实现的组合，比如基于内存的fs 与本地fs 组合实现强大的
npm 扩展以及配置管理。。。

参考代码

• package.json

 

{

  "name": "mem-fs-app",

  "version": "1.0.0",

  "main": "index.js",

  "license": "MIT",

  "dependencies": {

    "fs-monkey": "^1.0.3",

    "linkfs": "^2.1.0",

    "memfs": "^3.2.2",

    "unionfs": "^4.4.0"

  }

}

• app.js

const {vol}  = require('memfs');

const {patchRequire} = require('fs-monkey');

const {ufs} = require('unionfs');

const myfs = require('fs');

vol.fromJSON({'/foo/bar.js': 'console.log("obi trice");'});

ufs

    .use(vol)

    .use(myfs);

patchRequire(ufs);

require('/foo/bar.js'); 

运行效果

 

 

参考资料

https://github.com/streamich/unionfs
https://github.com/streamich/memfs
https://github.com/harish2704/node-s3-fs
https://github.com/streamich/linkfs