50 lines
1.3 KiB
JavaScript
50 lines
1.3 KiB
JavaScript
const url = require('url');
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const https = require('https');
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const gunzip = require('gunzip-maybe');
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const tar = require('tar-stream');
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const bufferStream = require('./bufferStream');
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const agent = require('./registryAgent');
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const logging = require('./logging');
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function fetchNpmPackage(packageConfig) {
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return new Promise((resolve, reject) => {
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const tarballURL = packageConfig.tarballURL;
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logging.debug(
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'Fetching package for %s from %s',
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packageConfig.name,
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tarballURL
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);
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const { hostname, pathname } = url.parse(tarballURL);
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const options = {
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agent: agent,
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hostname: hostname,
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path: pathname
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};
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https
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.get(options, res => {
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if (res.statusCode === 200) {
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resolve(res.pipe(gunzip()).pipe(tar.extract()));
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} else {
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bufferStream(res).then(data => {
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const spec = `${packageConfig.name}@${packageConfig.version}`;
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const content = data.toString('utf-8');
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const error = new Error(
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`Failed to fetch tarball for ${spec}\nstatus: ${
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res.statusCode
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}\ndata: ${content}`
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);
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reject(error);
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});
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}
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})
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.on('error', reject);
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});
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}
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module.exports = fetchNpmPackage;
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