summaryrefslogtreecommitdiffstats
path: root/node_modules/node-sass/scripts/install.js
diff options
context:
space:
mode:
Diffstat (limited to 'node_modules/node-sass/scripts/install.js')
-rw-r--r--node_modules/node-sass/scripts/install.js157
1 files changed, 157 insertions, 0 deletions
diff --git a/node_modules/node-sass/scripts/install.js b/node_modules/node-sass/scripts/install.js
new file mode 100644
index 0000000..6febbe4
--- /dev/null
+++ b/node_modules/node-sass/scripts/install.js
@@ -0,0 +1,157 @@
+/*!
+ * node-sass: scripts/install.js
+ */
+
+var fs = require('fs'),
+ eol = require('os').EOL,
+ mkdir = require('mkdirp'),
+ path = require('path'),
+ sass = require('../lib/extensions'),
+ request = require('request'),
+ log = require('npmlog'),
+ downloadOptions = require('./util/downloadoptions');
+
+/**
+ * Download file, if succeeds save, if not delete
+ *
+ * @param {String} url
+ * @param {String} dest
+ * @param {Function} cb
+ * @api private
+ */
+
+function download(url, dest, cb) {
+ var reportError = function(err) {
+ var timeoutMessge;
+
+ if (err.code === 'ETIMEDOUT') {
+ if (err.connect === true) {
+ // timeout is hit while your client is attempting to establish a connection to a remote machine
+ timeoutMessge = 'Timed out attemping to establish a remote connection';
+ } else {
+ timeoutMessge = 'Timed out whilst downloading the prebuilt binary';
+ // occurs any time the server is too slow to send back a part of the response
+ }
+
+ }
+ cb(['Cannot download "', url, '": ', eol, eol,
+ typeof err.message === 'string' ? err.message : err, eol, eol,
+ timeoutMessge ? timeoutMessge + eol + eol : timeoutMessge,
+ 'Hint: If github.com is not accessible in your location', eol,
+ ' try setting a proxy via HTTP_PROXY, e.g. ', eol, eol,
+ ' export HTTP_PROXY=http://example.com:1234',eol, eol,
+ 'or configure npm proxy via', eol, eol,
+ ' npm config set proxy http://example.com:8080'].join(''));
+ };
+
+ var successful = function(response) {
+ return response.statusCode >= 200 && response.statusCode < 300;
+ };
+
+ console.log('Downloading binary from', url);
+
+ try {
+ request(url, downloadOptions(), function(err, response, buffer) {
+ if (err) {
+ reportError(err);
+ } else if (!successful(response)) {
+ reportError(['HTTP error', response.statusCode, response.statusMessage].join(' '));
+ } else {
+ console.log('Download complete');
+
+ if (successful(response)) {
+ fs.createWriteStream(dest)
+ .on('error', cb)
+ .end(buffer, cb);
+ } else {
+ cb();
+ }
+ }
+ })
+ .on('response', function(response) {
+ var length = parseInt(response.headers['content-length'], 10);
+ var progress = log.newItem('', length);
+
+ // The `progress` is true by default. However if it has not
+ // been explicitly set it's `undefined` which is considered
+ // as far as npm is concerned.
+ if (process.env.npm_config_progress === 'true') {
+ log.enableProgress();
+
+ response.on('data', function(chunk) {
+ progress.completeWork(chunk.length);
+ })
+ .on('end', progress.finish);
+ }
+ });
+ } catch (err) {
+ cb(err);
+ }
+}
+
+/**
+ * Check and download binary
+ *
+ * @api private
+ */
+
+function checkAndDownloadBinary() {
+ if (process.env.SKIP_SASS_BINARY_DOWNLOAD_FOR_CI) {
+ console.log('Skipping downloading binaries on CI builds');
+ return;
+ }
+
+ var cachedBinary = sass.getCachedBinary(),
+ cachePath = sass.getBinaryCachePath(),
+ binaryPath = sass.getBinaryPath();
+
+ if (sass.hasBinary(binaryPath)) {
+ console.log('node-sass build', 'Binary found at', binaryPath);
+ return;
+ }
+
+ try {
+ mkdir.sync(path.dirname(binaryPath));
+ } catch (err) {
+ console.error('Unable to save binary', path.dirname(binaryPath), ':', err);
+ return;
+ }
+
+ if (cachedBinary) {
+ console.log('Cached binary found at', cachedBinary);
+ fs.createReadStream(cachedBinary).pipe(fs.createWriteStream(binaryPath));
+ return;
+ }
+
+ download(sass.getBinaryUrl(), binaryPath, function(err) {
+ if (err) {
+ console.error(err);
+ return;
+ }
+
+ console.log('Binary saved to', binaryPath);
+
+ cachedBinary = path.join(cachePath, sass.getBinaryName());
+
+ if (cachePath) {
+ console.log('Caching binary to', cachedBinary);
+
+ try {
+ mkdir.sync(path.dirname(cachedBinary));
+ fs.createReadStream(binaryPath)
+ .pipe(fs.createWriteStream(cachedBinary))
+ .on('error', function (err) {
+ console.log('Failed to cache binary:', err);
+ });
+ } catch (err) {
+ console.log('Failed to cache binary:', err);
+ }
+ }
+ });
+}
+
+/**
+ * If binary does not exist, download it
+ */
+
+checkAndDownloadBinary();