node zip 解压缩

zip.ts

import * as archiver from 'archiver';
import * as fs from 'fs'
import * as unzipper from 'unzipper'

/**
 * 根据目录压缩 zip 文件
 * @param filePath 
 * @param folderPath 
 * @returns 
 */
export function zipFolder(outputFilePath: string, folderPath: string) {
  return new Promise((resolve, reject) => {
    const output = fs.createWriteStream(outputFilePath);
    const archive = archiver('zip', {
      zlib: { level: 9 } // Sets the compression level.
    });

    output.on('close', function() {
      resolve(outputFilePath);
    });

    archive.on('error', function(err) {
      reject(err)
    });

    archive.pipe(output);
    archive.directory(folderPath, '/');
    archive.finalize();
  })
}

/**
 * zip 解压
 * @param filePath 
 * @param output 
 */
export async function unzip(filePath: string, output: string) {
  await fs.createReadStream(filePath)
  .pipe(unzipper.Extract({
    path: output
  }))
  .on('entry', entry => entry.autodrain())
  .promise()
}