nodejs中使用archive压缩文件的实现代码资源-CSDN文库

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nodejs中使用中使用archive压缩文件的实现代码压缩文件的实现代码

前言前言

archive是一款在nodejs中可以实现跨平台打包的工具

可以将文件压缩为zip或rar格式

是一个比较好用的第三方模块

install

npm install archiver --save

archive github地址：https://github.com/archiverjs/node-archiver

Quick Start

// require modules

var fs = require('fs');

var archiver = require('archiver');

// create a file to stream archive data to.

var output = fs.createWriteStream(__dirname + '/example.zip');

//设置压缩格式为zip

var archive = archiver('zip', {

zlib: { level: 9 } // Sets the compression level.

});

// listen for all archive data to be written

// 'close' event is fired only when a file descriptor is involved

output.on('close', function() {

console.log(archive.pointer() + ' total bytes');

console.log('archiver has been finalized and the output file descriptor has closed.');

});

// This event is fired when the data source is drained no matter what was the data source.

// It is not part of this library but rather from the NodeJS Stream API.

// @see: https://nodejs.org/api/stream.html#stream_event_end

output.on('end', function() {

console.log('Data has been drained');

});

// good practice to catch this error explicitly

archive.on('error', function(err) {

throw err;

});

// pipe archive data to the file

archive.pipe(output);

// append a file from stream

var file1 = __dirname + '/file1.txt';

archive.append(fs.createReadStream(file1), { name: 'file1.txt' });

// append a file from string

archive.append('string cheese!', { name: 'file2.txt' });

// append a file from buffer

var buffer3 = Buffer.from('buff it!');

archive.append(buffer3, { name: 'file3.txt' });

// append a file

archive.file('file1.txt', { name: 'file4.txt' });

// append files from a sub-directory and naming it `new-subdir` within the archive

archive.directory('subdir/', 'new-subdir');

// append files from a sub-directory, putting its contents at the root of archive

archive.directory('subdir/', false);

// append files from a glob pattern

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