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@harrietty
Created July 9, 2018 21:02
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const fs = require('fs');
const zlib = require('zlib');
const directoryFiles = fs.readdirSync('./data');
Promise.all(directoryFiles.map(filename => {
return new Promise((resolve, reject) => {
const fileContents = fs.createReadStream(`./data/${filename}`);
const writeStream = fs.createWriteStream(`./data/${filename}.gz`);
const zip = zlib.createGzip();
fileContents.pipe(zip).pipe(writeStream).on('finish', (err) => {
if (err) return reject(err);
else resolve();
})
})
}))
.then(console.log('done'));
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