zip-node-addon

Node native addon which wrap the "kuba--/zip"

Install

npm install zip-node-addon

Quick Start

unzip by memory

var zipAddon = require('zip-node-addon');
const fs = require('fs')
const path =require('path')

const buf = fs.readFileSync(path.join(__dirname, 'zip.test.zip'))
zipAddon.unzipStream(buf, "./temp").then(resp => {
    console.log(resp)
    let ab = JSON.parse(resp)
    console.log(ab)
}).catch(err => console.error(err))

unzip by file

var zipAddon = require('zip-node-addon');
const fs = require('fs')
const path =require('path')
await zipAddon.unzipFile(path.join(__dirname, 'zip.test.zip'), "./temp/unzipFile").then(jsonStr => {
    console.log(jsonStr)
    let jsObj = JSON.parse(jsonStr)
    console.log(jsObj)
}).catch(err => console.error(err))

zip files and return buffer

await zipAddon.zipBuffer({
    file1: Buffer.from("I am plain text"),
    file2: Buffer.from(fs.readFileSync(path.join(__dirname, '../README.md'))),
    'dir/file3': Buffer.from("file in dir"),
}).then(buf => {
    fs.writeFileSync(path.join(__dirname, '../temp/test.zip'), buf)
}).catch(err => console.error(err))

get all entries

await zipAddon.listAllEntriesFromFile(path.join(__dirname, 'zip.test.zip')).then(jsonStr => {
    console.log(jsonStr)
    let jsObj = JSON.parse(jsonStr)
    console.log(jsObj)
}).catch(err => console.error(err))

// or
const buf = fs.readFileSync(path.join(__dirname, 'zip.test.zip'))
await zipAddon.listAllEntriesFromBuffer(buf).then(jsonStr => {
    console.log(jsonStr)
    let jsObj = JSON.parse(jsonStr)
    console.log(jsObj)
}).catch(err => console.error(err))

benchmark

其中JavaScript使用的是JsZip, node-addon使用的是封装的zip，c++是使用的kuba--/zip, 流程就是解压已经读取到内存的压缩数据到指定位置（zip文件大小3.34MB,解压后26.1MB)

Unzip from memory to files.

下方表格是在windows10，Node版本 v12.22.1, CPU-i5-8400下测试的

impl	cost
Javascript	259.938ms
node-addon	125.162ms
c/c++	132 ms

下方表格是在mac，Node版本 v12.10.0, CPU-i5下测试的

impl	cost
Javascript	266.769ms
node-addon	124.211ms
c/c++	122 ms

Test

npm run test

License

MIT license.See LICENSE file for details.