122 lines
3.1 KiB
JavaScript
122 lines
3.1 KiB
JavaScript
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/*!
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* node-sass: scripts/install.js
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*/
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var fs = require('fs'),
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eol = require('os').EOL,
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path = require('path'),
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fetch = require('make-fetch-happen'),
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sass = require('../lib/extensions'),
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downloadOptions = require('./util/downloadoptions');
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/**
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* Download file, if succeeds save, if not delete
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*
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* @param {String} url
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* @param {String} dest
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* @param {Function} cb
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* @api private
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*/
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function download(url, dest, cb) {
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var reportError = function(err) {
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cb(['Cannot download "', url, '": ', eol, eol,
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typeof err.message === 'string' ? err.message : err, eol, eol,
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'Hint: If github.com is not accessible in your location', eol,
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' try setting a proxy via HTTP_PROXY, e.g. ', eol, eol,
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' export HTTP_PROXY=http://example.com:1234',eol, eol,
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'or configure npm proxy via', eol, eol,
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' npm config set proxy http://example.com:8080'].join(''));
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};
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var successful = function(response) {
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return response.status >= 200 && response.status < 300;
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};
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console.log('Downloading binary from', url);
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try {
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fetch(url, downloadOptions()).then(function (response) {
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return response.buffer();
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}).then(function (buffer) {
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fs.createWriteStream(dest).on('error', cb).end(buffer, cb);
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console.log('Download complete');
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}).catch(function(err) {
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if(!successful(err)) {
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reportError(['HTTP error', err.code, err.message].join(' '));
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} else {
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reportError(err);
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}
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});
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} catch (err) {
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cb(err);
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}
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}
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/**
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* Check and download binary
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*
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* @api private
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*/
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function checkAndDownloadBinary() {
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if (process.env.SKIP_SASS_BINARY_DOWNLOAD_FOR_CI) {
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console.log('Skipping downloading binaries on CI builds');
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return;
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}
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var cachedBinary = sass.getCachedBinary(),
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cachePath = sass.getBinaryCachePath(),
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binaryPath = sass.getBinaryPath();
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if (sass.hasBinary(binaryPath)) {
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console.log('node-sass build', 'Binary found at', binaryPath);
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return;
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}
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try {
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fs.mkdirSync(path.dirname(binaryPath), {recursive: true});
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} catch (err) {
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console.error('Unable to save binary', path.dirname(binaryPath), ':', err);
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return;
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}
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if (cachedBinary) {
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console.log('Cached binary found at', cachedBinary);
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fs.createReadStream(cachedBinary).pipe(fs.createWriteStream(binaryPath));
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return;
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}
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download(sass.getBinaryUrl(), binaryPath, function(err) {
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if (err) {
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console.error(err);
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return;
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}
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console.log('Binary saved to', binaryPath);
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cachedBinary = path.join(cachePath, sass.getBinaryName());
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if (cachePath) {
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console.log('Caching binary to', cachedBinary);
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try {
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fs.mkdirSync(path.dirname(cachedBinary), {recursive: true});
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fs.createReadStream(binaryPath)
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.pipe(fs.createWriteStream(cachedBinary))
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.on('error', function (err) {
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console.log('Failed to cache binary:', err);
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});
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} catch (err) {
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console.log('Failed to cache binary:', err);
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}
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}
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});
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}
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/**
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* If binary does not exist, download it
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*/
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checkAndDownloadBinary();
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