text: #!/usr/bin/env node
  
  var Wxapkg = require('../index');
  
  const fs = require('fs');
  const path = require('path');
  const mkdirp = require('../src/mkdirp');
  
  const utf8_suffixs = ['.html', '.js', '.css'];
  
  let file = fs.readFileSync(process.argv[2]);
  
  let destination = process.argv[3] ? process.argv[3] : 'wxapkg.unpack';
  let wxapkg = new Wxapkg(file);
  let files = wxapkg.decode();
  files.forEach((f) => {
    let filePath = path.join(process.cwd(), destination, f.name);
    let dir = path.dirname(filePath);
    mkdirp(dir, function (err) {
      if (err) return console.error(err);
  
      console.log(filePath);
      if (utf8_suffixs.some((it) => filePath.endsWith(it))) {
        fs.writeFileSync(filePath, f.chunk, 'utf8');
      } else {
        fs.writeFileSync(filePath, f.chunk, 'binary');
      }
    });
  });
  