| 1 | const fs = require('fs')
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| 2 | const path = require('path')
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| 3 | const zlib = require('zlib')
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| 4 |
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| 5 | module.exports = file => new Promise((resolve, reject) => {
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| 6 | let gzFile = `${file}.gz`
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| 7 |
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| 8 | const filePath = path.resolve(file)
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| 9 | const gzFilePath = path.resolve(gzFile)
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| 10 |
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| 11 | let gzip = zlib.createGzip()
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| 12 |
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| 13 | const inputStream = fs.createReadStream(filePath)
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| 14 | const outStream = fs.createWriteStream(gzFilePath)
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| 15 |
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| 16 | inputStream.pipe(gzip).pipe(outStream)
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| 17 |
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| 18 | outStream.on('finish', () => {
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| 19 | fs.unlinkSync(filePath)
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| 20 | resolve()
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| 21 | })
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| 22 | })
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