mirror of
https://github.com/whoisclebs/lodash.git
synced 2026-02-01 15:57:48 +00:00
106 lines
3.3 KiB
JavaScript
106 lines
3.3 KiB
JavaScript
#!/usr/bin/env node
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;(function () {
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'use strict';
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/** Load Node modules */
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var exec = require('child_process').exec,
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fs = require('fs'),
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https = require('https'),
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path = require('path'),
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tar = require('../vendor/tar/tar.js'),
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zlib = require('zlib');
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/** The path of the directory that is the base of the repository */
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var basePath = fs.realpathSync(path.join(__dirname, '..'));
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/** The path of the `vendor` directory */
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var vendorPath = path.join(basePath, 'vendor');
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/** The Git object ID of `closure-compiler.tar.gz` */
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var closureId = 'aa29a2ecf6f51d4da5a2a418c0d4ea0e368ee80d';
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/** The Git object ID of `uglifyjs.tar.gz` */
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var uglifyId = '9869c4443fb22598235d1019fcc8245be41e8889';
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/*--------------------------------------------------------------------------*/
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/**
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* Fetches a required `.tar.gz` dependency with the given Git object ID from
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* the Lo-Dash repo on GitHub. The object ID may be obtained by running
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* `git hash-object path/to/dependency.tar.gz`.
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*
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* @private
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* @param {Object} options The options object.
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*
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* id - The Git object ID of the `.tar.gz` file.
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* onComplete - The function, invoked with one argument (exception),
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* called once the extraction has finished.
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* path - The path of the extraction directory.
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* title - The dependency's title used in status updates logged to the console.
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*/
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function getDependency(options) {
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options || (options = {});
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var onComplete = options.onComplete,
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title = options.title;
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function callback(exception) {
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if (exception) {
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console.error('There was a problem downloading ' + title + '.');
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}
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onComplete(exception);
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}
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console.log('Downloading ' + title + '...');
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https.get({
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'host': 'api.github.com',
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'path': '/repos/bestiejs/lodash/git/blobs/' + options.id,
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'headers': {
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// By default, all GitHub blob API endpoints return a JSON document
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// containing Base64-encoded blob data. Overriding the `Accept` header
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// with the GitHub raw media type returns the blob data directly.
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'Accept': 'application/vnd.github.v3.raw'
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}
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}, function(response) {
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var decompressor = zlib.createUnzip(),
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parser = new tar.Extract({ 'path': options.path });
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decompressor.on('error', callback)
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parser.on('end', callback).on('error', callback);
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response.pipe(decompressor).pipe(parser);
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})
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.on('error', callback);
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}
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/*--------------------------------------------------------------------------*/
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exec('npm -g root', function(exception, stdout) {
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if (exception) {
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console.error('There was a problem loading the npm registry.');
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process.exit(1);
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}
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// exit early if not a global install
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if (path.resolve(basePath, '..') != stdout.trim()) {
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return;
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}
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// download the Closure Compiler
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getDependency({
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'title': 'the Closure Compiler',
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'id': closureId,
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'path': vendorPath,
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'onComplete':function(exceptionA) {
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// download UglifyJS
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getDependency({
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'title': 'UglifyJS',
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'id': uglifyId,
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'path': vendorPath,
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'onComplete': function(exceptionB) {
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process.exit(exceptionA || exceptionB ? 1 : 0);
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}
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});
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}
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});
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});
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}());
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