| 1 | 'use strict'
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| 2 |
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| 3 | function download (url, path, opts) {
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| 4 | const progress = require('smooth-progress')
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| 5 | const bytes = require('bytes')
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| 6 | const https = require('https')
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| 7 | const fs = require('fs')
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| 8 | const mkdirp = require('mkdirp')
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| 9 | const tty = process.stderr.isTTY && process.env.TERM !== 'dumb'
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| 10 |
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| 11 | function showProgress (rsp) {
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| 12 | let bar = progress({
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| 13 | tmpl: `Downloading ${path}... :bar :percent :eta :data`,
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| 14 | width: 25,
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| 15 | total: parseInt(rsp.headers['content-length'])
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| 16 | })
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| 17 | let total = 0
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| 18 | rsp.on('data', function (chunk) {
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| 19 | total += chunk.length
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| 20 | bar.tick(chunk.length, { data: bytes(total, { decimalPlaces: 2, fixedDecimals: 2 }) })
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| 21 | })
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| 22 | }
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| 23 |
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| 24 | return new Promise(function (resolve, reject) {
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| 25 | mkdirp.sync(require('path').dirname(path))
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| 26 | let file = fs.createWriteStream(path)
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| 27 | https.get(url, function (rsp) {
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| 28 | if (tty && opts.progress) showProgress(rsp)
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| 29 | rsp.pipe(file)
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| 30 | .on('error', reject)
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| 31 | .on('close', resolve)
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| 32 | })
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| 33 | })
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| 34 | }
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| 35 |
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| 36 | module.exports = download
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