mirror of
https://github.com/whoisclebs/lodash.git
synced 2026-01-31 15:27:50 +00:00
1342 lines
45 KiB
JavaScript
Executable File
1342 lines
45 KiB
JavaScript
Executable File
#!/usr/bin/env node
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;(function() {
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'use strict';
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/** Load modules */
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var fs = require('fs'),
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path = require('path'),
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vm = require('vm'),
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minify = require(path.join(__dirname, 'build', 'minify')),
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_ = require(path.join(__dirname, 'lodash'));
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/** The current working directory */
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var cwd = process.cwd();
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/** Shortcut used to convert array-like objects to arrays */
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var slice = [].slice;
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/** Shortcut to the `stdout` object */
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var stdout = process.stdout;
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/** Used to associate aliases with their real names */
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||
var aliasToRealMap = {
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'all': 'every',
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'any': 'some',
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'collect': 'map',
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'detect': 'find',
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'drop': 'rest',
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'each': 'forEach',
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'foldl': 'reduce',
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'foldr': 'reduceRight',
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'head': 'first',
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'include': 'contains',
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'inject': 'reduce',
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'methods': 'functions',
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'select': 'filter',
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'tail': 'rest',
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'take': 'first',
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'unique': 'uniq'
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};
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/** Used to associate real names with their aliases */
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var realToAliasMap = {
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'contains': ['include'],
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'every': ['all'],
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'filter': ['select'],
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'find': ['detect'],
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'first': ['head', 'take'],
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'forEach': ['each'],
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'functions': ['methods'],
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'map': ['collect'],
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'reduce': ['foldl', 'inject'],
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'reduceRight': ['foldr'],
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'rest': ['drop', 'tail'],
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'some': ['any'],
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'uniq': ['unique']
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};
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/** Used to track function dependencies */
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var dependencyMap = {
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'after': [],
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'bind': ['isFunction'],
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'bindAll': ['bind', 'isFunction'],
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'chain': ['mixin'],
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'clone': ['extend', 'forIn', 'forOwn', 'isArguments', 'isFunction'],
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'compact': [],
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'compose': [],
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'contains': [],
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'countBy': [],
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'debounce': [],
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'defaults': ['isArguments'],
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'defer': [],
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'delay': [],
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'difference': ['indexOf'],
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'escape': [],
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'every': ['identity'],
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'extend': ['isArguments'],
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'filter': ['identity'],
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'find': [],
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'first': [],
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'flatten': ['isArray'],
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'forEach': [],
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'forIn': ['isArguments'],
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'forOwn': ['isArguments'],
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'functions': ['isArguments', 'isFunction'],
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'groupBy': [],
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'has': [],
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'identity': [],
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'indexOf': ['sortedIndex'],
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'initial': [],
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'intersection': ['indexOf'],
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'invert': [],
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'invoke': [],
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'isArguments': [],
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'isArray': [],
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'isBoolean': [],
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'isDate': [],
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'isElement': [],
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'isEmpty': ['isArguments', 'isFunction'],
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'isEqual': ['isArguments', 'isFunction'],
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'isFinite': [],
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'isFunction': [],
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'isNaN': [],
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'isNull': [],
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'isNumber': [],
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'isObject': [],
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'isRegExp': [],
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'isString': [],
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'isUndefined': [],
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'keys': ['isArguments'],
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'last': [],
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'lastIndexOf': [],
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'lateBind': ['isFunction'],
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'map': ['identity'],
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'max': [],
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'memoize': [],
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'merge': ['isArguments', 'isArray', 'forIn'],
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'min': [],
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'mixin': ['forEach', 'functions'],
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'noConflict': [],
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'object': [],
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'omit': ['indexOf', 'isArguments'],
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'once': [],
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'pairs': [],
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'partial': ['isFunction'],
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'pick': [],
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'pluck': [],
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'random': [],
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'range': [],
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'reduce': [],
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'reduceRight': ['keys'],
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'reject': ['identity'],
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'rest': [],
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'result': ['isFunction'],
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'shuffle': [],
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'size': ['keys'],
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'some': ['identity'],
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'sortBy': [],
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'sortedIndex': ['bind'],
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'tap': ['mixin'],
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'template': ['escape'],
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'throttle': [],
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'times': [],
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'toArray': ['isFunction', 'values'],
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'unescape': [],
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'union': ['indexOf'],
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'uniq': ['identity', 'indexOf'],
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'uniqueId': [],
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'value': ['mixin'],
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'values': ['isArguments'],
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'where': ['forIn'],
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'without': ['indexOf'],
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'wrap': [],
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'zip': ['max', 'pluck']
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};
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/** Used to inline `iteratorTemplate` */
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var iteratorOptions = [
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'args',
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'array',
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'arrayBranch',
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'beforeLoop',
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'bottom',
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'exit',
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'firstArg',
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'hasDontEnumBug',
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'inLoop',
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'init',
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'isKeysFast',
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'object',
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'objectBranch',
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'noArgsEnum',
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'noCharByIndex',
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'shadowed',
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'top',
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'useHas',
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'useStrict'
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];
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/** List of all Lo-Dash methods */
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var allMethods = _.keys(dependencyMap);
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/** List Backbone's Lo-Dash dependencies */
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var backboneDependencies = [
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'bind',
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'bindAll',
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'clone',
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'contains',
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'escape',
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'every',
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'extend',
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'filter',
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'find',
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'first',
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'forEach',
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'groupBy',
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'has',
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'indexOf',
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'initial',
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'invoke',
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'isArray',
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'isEmpty',
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'isEqual',
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'isFunction',
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'isObject',
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'isRegExp',
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'keys',
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'last',
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'lastIndexOf',
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'lateBind',
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'map',
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'max',
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'min',
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'mixin',
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'reduce',
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'reduceRight',
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'reject',
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'rest',
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'result',
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'shuffle',
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'size',
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'some',
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'sortBy',
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'sortedIndex',
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'toArray',
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'uniqueId',
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'without'
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];
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/** List of methods used by Underscore */
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var underscoreMethods = _.without.apply(_, [allMethods].concat([
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'countBy',
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'forIn',
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'forOwn',
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'invert',
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'lateBind',
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'merge',
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'object',
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'omit',
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'pairs',
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'partial',
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'random',
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'unescape',
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'where'
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]));
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/** List of ways to export the `LoDash` function */
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var exportsAll = [
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'amd',
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'commonjs',
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'global',
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'node'
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];
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/*--------------------------------------------------------------------------*/
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/**
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* Removes unnecessary comments, whitespace, and pseudo private properties.
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*
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* @private
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* @param {String} source The source to process.
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* @returns {String} Returns the modified source.
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*/
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function cleanupSource(source) {
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return source
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// remove pseudo private properties
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.replace(/(?:(?:\s*\/\/.*)*\s*lodash\._[^=]+=.+\n)+/g, '\n')
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// remove lines with just whitespace and semicolons
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.replace(/^ *;\n/gm, '')
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// consolidate consecutive horizontal rule comment separators
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.replace(/(?:\s*\/\*-+\*\/\s*){2,}/g, function(separators) {
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return separators.match(/^\s*/)[0] + separators.slice(separators.lastIndexOf('/*'));
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});
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}
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/**
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* Writes the help message to standard output.
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*
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* @private
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*/
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function displayHelp() {
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console.log([
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'',
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' Commands:',
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'',
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' lodash backbone Build with only methods required by Backbone',
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||
' lodash csp Build supporting default Content Security Policy restrictions',
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||
' lodash legacy Build tailored for older browsers without ES5 support',
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' lodash mobile Build with IE < 9 bug fixes & method compilation removed',
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' lodash strict Build with `_.bindAll`, `_.defaults`, & `_.extend` in strict mode',
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' lodash underscore Build with iteration fixes removed and only Underscore’s API',
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||
' lodash exclude=... Comma separated names of methods to exclude from the build',
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' lodash include=... Comma separated names of methods to include in the build',
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' lodash category=... Comma separated categories of methods to include in the build',
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' (i.e. “arrays”, “chaining”, “collections”, “functions”, “objects”, and “utilities”)',
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||
' lodash exports=... Comma separated names of ways to export the `LoDash` function',
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' (i.e. “amd”, “commonjs”, “global”, “node”, and “none”)',
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' lodash iife=... Code to replace the immediately-invoked function expression that wraps Lo-Dash',
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' (e.g. “!function(window,undefined){%output%}(this)”)',
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'',
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' All arguments, except `exclude` with `include` & `legacy` with `csp`/`mobile`,',
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||
' may be combined.',
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'',
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' Options:',
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'',
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||
' -c, --stdout Write output to standard output',
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||
' -h, --help Display help information',
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||
' -o, --output Write output to a given path/filename',
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||
' -s, --silent Skip status updates normally logged to the console',
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||
' -V, --version Output current version of Lo-Dash',
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''
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].join('\n'));
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}
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/**
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* Gets the aliases associated with a given function name.
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*
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* @private
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* @param {String} methodName The name of the method to get aliases for.
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* @returns {Array} Returns an array of aliases.
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*/
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function getAliases(methodName) {
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return realToAliasMap[methodName] || [];
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}
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/**
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* Gets the Lo-Dash method assignments snippet from `source`.
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*
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* @private
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* @param {String} source The source to inspect.
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* @returns {String} Returns the method assignments snippet.
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*/
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function getMethodAssignments(source) {
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return (source.match(/lodash\.VERSION *= *[\s\S]+?\/\*-+\*\/\n/) || [''])[0];
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}
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/**
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* Gets an array of depenants for a method by a given name.
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*
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* @private
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* @param {String} methodName The name of the method to query.
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* @returns {Array} Returns an array of method dependants.
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||
*/
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||
function getDependants(methodName) {
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// iterate over the `dependencyMap`, adding the names of methods that
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// have `methodName` as a dependency
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return _.reduce(dependencyMap, function(result, dependencies, otherName) {
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if (_.contains(dependencies, methodName)) {
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result.push(otherName);
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||
}
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||
return result;
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||
}, []);
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||
}
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||
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||
/**
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* Gets an array of dependencies for a given method name. If passed an array
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||
* of dependencies it will return an array containing the given dependencies
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||
* plus any additional detected sub-dependencies.
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||
*
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||
* @private
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* @param {Array|String} methodName A single method name or array of
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||
* dependencies to query.
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||
* @returns {Array} Returns an array of method dependencies.
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||
*/
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||
function getDependencies(methodName) {
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||
var dependencies = Array.isArray(methodName) ? methodName : dependencyMap[methodName];
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||
if (!dependencies) {
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||
return [];
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||
}
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||
// recursively accumulate the dependencies of the `methodName` function, and
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||
// the dependencies of its dependencies, and so on.
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||
return _.uniq(dependencies.reduce(function(result, otherName) {
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result.push.apply(result, getDependencies(otherName).concat(otherName));
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||
return result;
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||
}, []));
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||
}
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||
|
||
/**
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||
* Gets the formatted source of the given function.
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||
*
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||
* @private
|
||
* @param {Function} func The function to process.
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||
* @returns {String} Returns the formatted source.
|
||
*/
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||
function getFunctionSource(func) {
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||
var source = func.source || (func + '');
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||
|
||
// format leading whitespace
|
||
return source.replace(/\n(?:.*)/g, function(match, index) {
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||
match = match.slice(1);
|
||
return (
|
||
match == '}' && source.indexOf('}', index + 2) == -1 ? '\n ' : '\n '
|
||
) + match;
|
||
});
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||
}
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||
|
||
/**
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||
* Gets the `_.isArguments` fallback snippet from `source`.
|
||
*
|
||
* @private
|
||
* @param {String} source The source to inspect.
|
||
* @returns {String} Returns the `isArguments` fallback snippet.
|
||
*/
|
||
function getIsArgumentsFallback(source) {
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||
return (source.match(/(?:\s*\/\/.*)*\n( +)if *\((?:noArgsClass|!isArguments\(arguments\))\)[\s\S]+?};\n\1}/) || [''])[0];
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||
}
|
||
|
||
/**
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||
* Gets the real name, not alias, of a given method name.
|
||
*
|
||
* @private
|
||
* @param {String} methodName The name of the method to resolve.
|
||
* @returns {String} Returns the real method name.
|
||
*/
|
||
function getRealName(methodName) {
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||
return aliasToRealMap[methodName] || methodName;
|
||
}
|
||
|
||
/**
|
||
* Determines if all functions of the given names have been removed from `source`.
|
||
*
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||
* @private
|
||
* @param {String} source The source to inspect.
|
||
* @param {String} [funcName1, funcName2, ...] The names of functions to check.
|
||
* @returns {Boolean} Returns `true` if all functions have been removed, else `false`.
|
||
*/
|
||
function isRemoved(source) {
|
||
return slice.call(arguments, 1).every(function(funcName) {
|
||
return !matchFunction(source, funcName);
|
||
});
|
||
}
|
||
|
||
/**
|
||
* Searches `source` for a `funcName` function declaration, expression, or
|
||
* assignment and returns the matched snippet.
|
||
*
|
||
* @private
|
||
* @param {String} source The source to inspect.
|
||
* @param {String} funcName The name of the function to match.
|
||
* @returns {String} Returns the matched function snippet.
|
||
*/
|
||
function matchFunction(source, funcName) {
|
||
var result = source.match(RegExp(
|
||
// match multi-line comment block (could be on a single line)
|
||
'\\n +/\\*[^*]*\\*+(?:[^/][^*]*\\*+)*/\\n' +
|
||
// begin non-capturing group
|
||
'(?:' +
|
||
// match a function declaration
|
||
'( +)function ' + funcName + '\\b[\\s\\S]+?\\n\\1}|' +
|
||
// match a variable declaration with `createIterator`
|
||
' +var ' + funcName + ' *=.*?createIterator\\((?:{|[a-zA-Z])[\\s\\S]+?\\);|' +
|
||
// match a variable declaration with function expression
|
||
'( +)var ' + funcName + ' *=.*?function[\\s\\S]+?\\n\\2};' +
|
||
// end non-capturing group
|
||
')\\n'
|
||
));
|
||
|
||
return result ? result[0] : '';
|
||
}
|
||
|
||
/**
|
||
* Removes the all references to `refName` from `createIterator` in `source`.
|
||
*
|
||
* @private
|
||
* @param {String} source The source to process.
|
||
* @param {String} refName The name of the reference to remove.
|
||
* @returns {String} Returns the modified source.
|
||
*/
|
||
function removeFromCreateIterator(source, refName) {
|
||
var snippet = matchFunction(source, 'createIterator');
|
||
if (snippet) {
|
||
// clip the snippet at the `factory` assignment
|
||
snippet = snippet.match(/Function\([\s\S]+$/)[0];
|
||
var modified = snippet.replace(RegExp('\\b' + refName + '\\b,? *', 'g'), '');
|
||
source = source.replace(snippet, modified);
|
||
}
|
||
return source;
|
||
}
|
||
|
||
/**
|
||
* Removes the `funcName` function declaration, expression, or assignment and
|
||
* associated code from `source`.
|
||
*
|
||
* @private
|
||
* @param {String} source The source to process.
|
||
* @param {String} funcName The name of the function to remove.
|
||
* @returns {String} Returns the source with the function removed.
|
||
*/
|
||
function removeFunction(source, funcName) {
|
||
var modified,
|
||
snippet = matchFunction(source, funcName);
|
||
|
||
// exit early if function is not found
|
||
if (!snippet) {
|
||
return source;
|
||
}
|
||
// remove function
|
||
source = source.replace(matchFunction(source, funcName), '');
|
||
|
||
// grab the method assignments snippet
|
||
snippet = getMethodAssignments(source);
|
||
|
||
// remove assignment and aliases
|
||
modified = getAliases(funcName).concat(funcName).reduce(function(result, otherName) {
|
||
return result.replace(RegExp('(?:\\n *//.*\\s*)* *lodash\\.' + otherName + ' *= *.+\\n'), '');
|
||
}, snippet);
|
||
|
||
// replace with the modified snippet
|
||
source = source.replace(snippet, modified);
|
||
|
||
return removeFromCreateIterator(source, funcName);
|
||
}
|
||
|
||
/**
|
||
* Removes the `_.isArguments` fallback from `source`.
|
||
*
|
||
* @private
|
||
* @param {String} source The source to process.
|
||
* @returns {String} Returns the source with the `isArguments` fallback removed.
|
||
*/
|
||
function removeIsArgumentsFallback(source) {
|
||
return source.replace(getIsArgumentsFallback(source), '');
|
||
}
|
||
|
||
/**
|
||
* Removes the `_.isFunction` fallback from `source`.
|
||
*
|
||
* @private
|
||
* @param {String} source The source to process.
|
||
* @returns {String} Returns the source with the `isFunction` fallback removed.
|
||
*/
|
||
function removeIsFunctionFallback(source) {
|
||
return source.replace(/(?:\s*\/\/.*)*\n( +)if *\(isFunction\(\/x\/[\s\S]+?};\n\1}/, '');
|
||
}
|
||
|
||
/**
|
||
* Removes the `Object.keys` object iteration optimization from `source`.
|
||
*
|
||
* @private
|
||
* @param {String} source The source to process.
|
||
* @returns {String} Returns the modified source.
|
||
*/
|
||
function removeKeysOptimization(source) {
|
||
return removeVar(source, 'isKeysFast')
|
||
// remove optimized branch in `iteratorTemplate`
|
||
.replace(/(?: *\/\/.*\n)* *'( *)<% *if *\(isKeysFast[\s\S]+?'\1<% *} *else *\{ *%>.+\n([\s\S]+?) *'\1<% *} *%>.+/, "'\\n' +\n$2")
|
||
// remove `isKeysFast` from `beforeLoop.object` of `mapIteratorOptions`
|
||
.replace(/=\s*'\s*\+\s*\(isKeysFast.+/, "= []'")
|
||
// remove `isKeysFast` from `inLoop.object` of `mapIteratorOptions`, `invoke`, `pairs`, `pluck`, and `sortBy`
|
||
.replace(/'\s*\+\s*\(isKeysFast[^)]+?\)\s*\+\s*'/g, '.push')
|
||
// remove data object property assignment in `createIterator`
|
||
.replace(/\s*.+?\.isKeysFast *=.+/, '');
|
||
}
|
||
|
||
/**
|
||
* Removes all `noArgsClass` references from `source`.
|
||
*
|
||
* @private
|
||
* @param {String} source The source to process.
|
||
* @returns {String} Returns the modified source.
|
||
*/
|
||
function removeNoArgsClass(source) {
|
||
return removeVar(source, 'noArgsClass')
|
||
// remove `noArgsClass` from `_.clone` and `_.isEqual`
|
||
.replace(/ *\|\| *\(noArgsClass *&&[^)]+?\)\)/g, '')
|
||
// remove `noArgsClass` from `_.isEqual`
|
||
.replace(/if *\(noArgsClass[^}]+?}\n/, '\n');
|
||
}
|
||
|
||
/**
|
||
* Removes all `noNodeClass` references from `source`.
|
||
*
|
||
* @private
|
||
* @param {String} source The source to process.
|
||
* @returns {String} Returns the modified source.
|
||
*/
|
||
function removeNoNodeClass(source) {
|
||
return source
|
||
// remove `noNodeClass` assignment
|
||
.replace(/(?:\n +\/\*[^*]*\*+(?:[^\/][^*]*\*+)*\/)?\n *try *\{(?:\s*\/\/.*)*\n *var noNodeClass[\s\S]+?catch[^}]+}\n/, '')
|
||
// remove `noNodeClass` from `isPlainObject`
|
||
.replace(/\(!noNodeClass *\|\|[\s\S]+?\)\) *&&/, '')
|
||
// remove `noNodeClass` from `_.isEqual`
|
||
.replace(/ *\|\| *\(noNodeClass *&&[\s\S]+?\)\)\)/, '');
|
||
}
|
||
|
||
/**
|
||
* Removes a given variable from `source`.
|
||
*
|
||
* @private
|
||
* @param {String} source The source to process.
|
||
* @param {String} varName The name of the variable to remove.
|
||
* @returns {String} Returns the source with the variable removed.
|
||
*/
|
||
function removeVar(source, varName) {
|
||
source = source.replace(RegExp(
|
||
// begin non-capturing group
|
||
'(?:' +
|
||
// match multi-line comment block
|
||
'(?:\\n +/\\*[^*]*\\*+(?:[^/][^*]*\\*+)*/)?\\n' +
|
||
// match a variable declaration that's not part of a declaration list
|
||
'( +)var ' + varName + ' *= *(?:.+?;|(?:Function\\(.+?|.*?[^,])\\n[\\s\\S]+?\\n\\1.+?;)\\n|' +
|
||
// match a variable in a declaration list
|
||
'\\n +' + varName + ' *=.+?,' +
|
||
// end non-capturing group
|
||
')'
|
||
), '');
|
||
|
||
// remove a varaible at the start of a variable declaration list
|
||
source = source.replace(RegExp('(var +)' + varName + ' *=.+?,\\s+'), '$1');
|
||
|
||
// remove a variable at the end of a variable declaration list
|
||
source = source.replace(RegExp(',\\s*' + varName + ' *=.+?;'), ';');
|
||
|
||
// remove variable reference from `arrayLikeClasses` and `cloneableClasses` assignments
|
||
source = source.replace(RegExp('(?:arrayLikeClasses|cloneableClasses)\\[' + varName + '\\] *= *(?:false|true)?', 'g'), '');
|
||
|
||
return removeFromCreateIterator(source, varName);
|
||
}
|
||
|
||
/**
|
||
* Searches `source` for a `varName` variable declaration and replaces its
|
||
* assigned value with `varValue`.
|
||
*
|
||
* @private
|
||
* @param {String} source The source to inspect.
|
||
* @param {String} varName The name of the variable to replace.
|
||
* @returns {String} Returns the source with the variable replaced.
|
||
*/
|
||
function replaceVar(source, varName, varValue) {
|
||
// replace a variable that's not part of a declaration list
|
||
source = source.replace(RegExp(
|
||
'(( +)var ' + varName + ' *= *)' +
|
||
'(?:.+?;|(?:Function\\(.+?|.*?[^,])\\n[\\s\\S]+?\\n\\2.+?;)\\n'
|
||
), '$1' + varValue + ';\n');
|
||
|
||
// replace a varaible at the start or middle of a declaration list
|
||
source = source.replace(RegExp('((?:var|\\n) +' + varName + ' *=).+?,'), '$1 ' + varValue + ',');
|
||
|
||
// replace a variable at the end of a variable declaration list
|
||
source = source.replace(RegExp('(,\\s*' + varName + ' *=).+?;'), '$1 ' + varValue + ';');
|
||
|
||
return source;
|
||
}
|
||
|
||
/**
|
||
* Hard-codes the `useStrict` template option value for `iteratorTemplate`.
|
||
*
|
||
* @private
|
||
* @param {String} source The source to process.
|
||
* @param {Boolean} value The value to set.
|
||
* @returns {String} Returns the modified source.
|
||
*/
|
||
function setUseStrictOption(source, value) {
|
||
// remove `isStrictFast` assignment
|
||
return removeVar(source, 'isStrictFast')
|
||
// replace `useStrict` branch in `value` with hard-coded option
|
||
.replace(/(?: *\/\/.*\n)*(\s*)' *<% *if *\(useStrict\).+/, value ? "$1'\\'use strict\\';\\n' +" : '')
|
||
// remove `useStrict` from iterator options
|
||
.replace(/ *'useStrict': *false,\n/g, '')
|
||
// remove `useStrict` variable assignment in `createIterator`
|
||
.replace(/,\s*useStrict *=[^;]+/, '')
|
||
// remove `useStrict` data object property assignment in `createIterator`
|
||
.replace(/\s*.+?\.useStrict *=.+/, '');
|
||
}
|
||
|
||
/*--------------------------------------------------------------------------*/
|
||
|
||
/**
|
||
* Creates a debug and minified build, executing the `callback` for each.
|
||
* The `callback` is invoked with 2 arguments; (filepath, source)
|
||
*
|
||
* @param {Array} options The options array.
|
||
* @param {Function} callback The function called per build.
|
||
*/
|
||
function build(options, callback) {
|
||
options || (options = []);
|
||
|
||
// the debug version of `source`
|
||
var debugSource;
|
||
|
||
// used to report invalid command-line arguments
|
||
var invalidArgs = _.reject(options.slice(options[0] == 'node' ? 2 : 0), function(value, index, options) {
|
||
if (/^(?:-o|--output)$/.test(options[index - 1]) ||
|
||
/^(?:category|exclude|exports|iife|include)=.*$/.test(value)) {
|
||
return true;
|
||
}
|
||
return [
|
||
'backbone',
|
||
'csp',
|
||
'legacy',
|
||
'mobile',
|
||
'strict',
|
||
'underscore',
|
||
'-c', '--stdout',
|
||
'-h', '--help',
|
||
'-o', '--output',
|
||
'-s', '--silent',
|
||
'-V', '--version'
|
||
].indexOf(value) > -1;
|
||
});
|
||
|
||
// report invalid arguments
|
||
if (invalidArgs.length) {
|
||
console.log(
|
||
'\n' +
|
||
'Invalid argument' + (invalidArgs.length > 1 ? 's' : '') +
|
||
' passed: ' + invalidArgs.join(', ')
|
||
);
|
||
displayHelp();
|
||
return;
|
||
}
|
||
|
||
// display help message
|
||
if (_.find(options, function(arg) {
|
||
return /^(?:-h|--help)$/.test(arg);
|
||
})) {
|
||
displayHelp();
|
||
return;
|
||
}
|
||
|
||
// display `lodash.VERSION`
|
||
if (_.find(options, function(arg) {
|
||
return /^(?:-V|--version)$/.test(arg);
|
||
})) {
|
||
console.log(_.VERSION);
|
||
return;
|
||
}
|
||
|
||
/*------------------------------------------------------------------------*/
|
||
|
||
// collections of method names to exclude or include
|
||
var excludeMethods = [],
|
||
includeMethods = [];
|
||
|
||
// flag used to specify a Backbone build
|
||
var isBackbone = options.indexOf('backbone') > -1;
|
||
|
||
// flag used to specify a Content Security Policy build
|
||
var isCSP = options.indexOf('csp') > -1 || options.indexOf('CSP') > -1;
|
||
|
||
// flag used to specify a legacy build
|
||
var isLegacy = options.indexOf('legacy') > -1;
|
||
|
||
// flag used to specify an Underscore build
|
||
var isUnderscore = options.indexOf('underscore') > -1;
|
||
|
||
// flag used to specify a mobile build
|
||
var isMobile = !isLegacy && (isCSP || isUnderscore || options.indexOf('mobile') > -1);
|
||
|
||
// flag used to specify writing output to standard output
|
||
var isStdOut = options.indexOf('-c') > -1 || options.indexOf('--stdout') > -1;
|
||
|
||
// flag used to specify skipping status updates normally logged to the console
|
||
var isSilent = isStdOut || options.indexOf('-s') > -1 || options.indexOf('--silent') > -1;
|
||
|
||
// flag used to specify `_.bindAll`, `_.extend`, and `_.defaults` are
|
||
// constructed using the "use strict" directive
|
||
var isStrict = options.indexOf('strict') > -1;
|
||
|
||
// flag used to specify if the build should include the "use strict" directive
|
||
var useStrict = isStrict || !(isLegacy || isMobile);
|
||
|
||
// the lodash.js source
|
||
var source = fs.readFileSync(path.join(__dirname, 'lodash.js'), 'utf8');
|
||
|
||
// used to specify the ways to export the `LoDash` function
|
||
var exportsOptions = options.reduce(function(result, value) {
|
||
var match = value.match(/^exports=(.*)$/);
|
||
if (!match) {
|
||
return result;
|
||
}
|
||
return match[1].split(/, */).sort();
|
||
}, exportsAll.slice());
|
||
|
||
// used to specify whether filtering is for exclusion or inclusion
|
||
var filterType = options.reduce(function(result, value) {
|
||
if (result) {
|
||
return result;
|
||
}
|
||
var pair = value.match(/^(exclude|include)=(.*)$/);
|
||
if (!pair) {
|
||
return result;
|
||
}
|
||
// remove nonexistent method names
|
||
var methodNames = _.intersection(allMethods, pair[2].split(/, */).map(getRealName));
|
||
|
||
if (pair[1] == 'exclude') {
|
||
excludeMethods = methodNames;
|
||
} else {
|
||
includeMethods = methodNames;
|
||
}
|
||
// return `filterType`
|
||
return pair[1];
|
||
}, '');
|
||
|
||
// used to specify a custom IIFE to wrap Lo-Dash
|
||
var iife = options.reduce(function(result, value) {
|
||
return result || (result = value.match(/^iife=(.*)$/)) && result[1];
|
||
}, '');
|
||
|
||
// load customized Lo-Dash module
|
||
var lodash = (function() {
|
||
var context = vm.createContext({
|
||
'clearTimeout': clearTimeout,
|
||
'setTimeout': setTimeout
|
||
});
|
||
|
||
if (isStrict) {
|
||
source = setUseStrictOption(source, true);
|
||
} else {
|
||
// remove "use strict" directive
|
||
source = source.replace(/(["'])use strict\1;( *\n)?/, '');
|
||
if (!useStrict) {
|
||
source = setUseStrictOption(source, false);
|
||
}
|
||
}
|
||
if (isLegacy) {
|
||
['isBindFast', 'isKeysFast', 'isStrictFast', 'nativeBind', 'nativeIsArray', 'nativeKeys'].forEach(function(varName) {
|
||
source = replaceVar(source, varName, 'false');
|
||
});
|
||
|
||
source = replaceVar(source, 'noArgsClass', 'true');
|
||
source = removeKeysOptimization(source);
|
||
}
|
||
else if (isUnderscore) {
|
||
// remove `deep` clone functionality
|
||
source = source.replace(/( +)function clone[\s\S]+?\n\1}/, [
|
||
' function clone(value) {',
|
||
' if (value && objectTypes[typeof value]) {',
|
||
' return toString.call(value) == arrayClass',
|
||
' ? slice.call(value)',
|
||
' : extend({}, value)',
|
||
' }',
|
||
' return value',
|
||
' }'
|
||
].join('\n'));
|
||
}
|
||
if (isMobile) {
|
||
source = replaceVar(source, 'isKeysFast', 'false');
|
||
source = removeKeysOptimization(source);
|
||
|
||
// remove Opera 10.53-10.60 JIT fixes
|
||
source = source.replace(/length *> *-1 *&& *length/g, 'length');
|
||
|
||
// remove `prototype` [[Enumerable]] fix from `_.keys`
|
||
source = source.replace(/(?:\s*\/\/.*)*\n( +)if *\(.+?propertyIsEnumerable[\s\S]+?\n\1}/, '');
|
||
|
||
// remove `prototype` [[Enumerable]] fix from `iteratorTemplate`
|
||
source = source
|
||
.replace(/(?: *\/\/.*\n)*\s*' *(?:<% *)?if *\(!hasDontEnumBug *(?:&&|\))[\s\S]+?<% *} *(?:%>|').+/g, '')
|
||
.replace(/!hasDontEnumBug *\|\|/g, '');
|
||
}
|
||
vm.runInContext(source, context);
|
||
return context._;
|
||
}());
|
||
|
||
/*------------------------------------------------------------------------*/
|
||
|
||
// customize for Backbone and Underscore builds
|
||
if (isUnderscore) {
|
||
// don't expose `_.forIn` or `_.forOwn` if `isUnderscore` is `true` unless
|
||
// requested by `include`
|
||
if (includeMethods.indexOf('forIn') == -1) {
|
||
source = source.replace(/ *lodash\.forIn *=.+\n/, '');
|
||
}
|
||
if (includeMethods.indexOf('forOwn') == -1) {
|
||
source = source.replace(/ *lodash\.forOwn *=.+\n/, '');
|
||
}
|
||
}
|
||
|
||
// include methods required by Backbone and Underscore builds
|
||
[
|
||
{ 'flag': isBackbone, 'methodNames': backboneDependencies },
|
||
{ 'flag': isUnderscore, 'methodNames': underscoreMethods }
|
||
]
|
||
.some(function(data) {
|
||
var flag = data.flag,
|
||
methodNames = data.methodNames;
|
||
|
||
if (!flag) {
|
||
return false;
|
||
}
|
||
// add any additional sub-dependencies
|
||
methodNames = getDependencies(methodNames);
|
||
|
||
if (filterType == 'exclude') {
|
||
// remove excluded methods from `methodNames`
|
||
includeMethods = _.without.apply(_, [methodNames].concat(excludeMethods));
|
||
}
|
||
else if (filterType) {
|
||
// merge `methodNames` into `includeMethods`
|
||
includeMethods = _.union(includeMethods, methodNames);
|
||
}
|
||
else {
|
||
// include only the `methodNames`
|
||
includeMethods = methodNames;
|
||
}
|
||
filterType = 'include';
|
||
return true;
|
||
});
|
||
|
||
/*------------------------------------------------------------------------*/
|
||
|
||
// include methods by category
|
||
options.some(function(value) {
|
||
var categories = value.match(/^category=(.*)$/);
|
||
if (!categories) {
|
||
return false;
|
||
}
|
||
// resolve method names belonging to each category
|
||
var categoryMethods = categories[1].split(/, */).reduce(function(result, category) {
|
||
return result.concat(allMethods.filter(function(methodName) {
|
||
return RegExp('@category ' + category + '\\b', 'i').test(matchFunction(source, methodName));
|
||
}));
|
||
}, []);
|
||
|
||
if (filterType == 'exclude') {
|
||
// remove excluded methods from `categoryMethods`
|
||
includeMethods = _.without.apply(_, [categoryMethods].concat(excludeMethods));
|
||
}
|
||
else if (filterType) {
|
||
// merge `categoryMethods` into `includeMethods`
|
||
includeMethods = _.union(includeMethods, categoryMethods);
|
||
}
|
||
else {
|
||
// include only the `categoryMethods`
|
||
includeMethods = categoryMethods;
|
||
}
|
||
filterType = 'include';
|
||
return true;
|
||
});
|
||
|
||
/*------------------------------------------------------------------------*/
|
||
|
||
// remove methods from the build
|
||
(function() {
|
||
// exit early if "exclude" or "include" options aren't specified
|
||
if (!filterType) {
|
||
return;
|
||
}
|
||
if (filterType == 'exclude') {
|
||
// remove methods that are named in `excludeMethods` and their dependants
|
||
excludeMethods.forEach(function(methodName) {
|
||
getDependants(methodName).concat(methodName).forEach(function(otherName) {
|
||
source = removeFunction(source, otherName);
|
||
});
|
||
});
|
||
}
|
||
else {
|
||
// add dependencies to `includeMethods`
|
||
includeMethods = getDependencies(includeMethods);
|
||
|
||
// remove methods that aren't named in `includeMethods`
|
||
allMethods.forEach(function(otherName) {
|
||
if (!_.contains(includeMethods, otherName)) {
|
||
source = removeFunction(source, otherName);
|
||
}
|
||
});
|
||
}
|
||
}());
|
||
|
||
/*------------------------------------------------------------------------*/
|
||
|
||
// simplify template snippets by removing unnecessary brackets
|
||
source = source.replace(
|
||
RegExp("{(\\\\n' *\\+\\s*.*?\\+\\n\\s*' *)}(?:\\\\n)?' *([,\\n])", 'g'), "$1'$2"
|
||
);
|
||
|
||
source = source.replace(
|
||
RegExp("{(\\\\n' *\\+\\s*.*?\\+\\n\\s*' *)}(?:\\\\n)?' *\\+", 'g'), "$1;\\n'+"
|
||
);
|
||
|
||
// remove `isArguments` fallback before `isArguments` is transformed by
|
||
// other parts of the build process
|
||
if (isRemoved(source, 'isArguments')) {
|
||
source = removeIsArgumentsFallback(source);
|
||
}
|
||
// DRY out isType functions
|
||
(function() {
|
||
var iteratorName = _.find(['forEach', 'forOwn'], function(methodName) {
|
||
return !isRemoved(source, methodName);
|
||
});
|
||
|
||
// skip this optimization if there are no iteration methods to use
|
||
if (!iteratorName) {
|
||
return;
|
||
}
|
||
var funcNames = [],
|
||
objectSnippets = [];
|
||
|
||
// build replacement code
|
||
_.forOwn({
|
||
'Date': 'dateClass',
|
||
'Number': 'numberClass',
|
||
'RegExp': 'regexpClass',
|
||
'String': 'stringClass'
|
||
},
|
||
function(value, key) {
|
||
var funcName = 'is' + key,
|
||
funcCode = matchFunction(source, funcName);
|
||
|
||
if (funcCode) {
|
||
funcNames.push(funcName);
|
||
objectSnippets.push("'" + key + "': " + value);
|
||
}
|
||
});
|
||
|
||
// skip this optimization if there are less than 2 isType functions
|
||
if (funcNames.length < 2) {
|
||
return;
|
||
}
|
||
|
||
// remove existing isType functions
|
||
funcNames.forEach(function(funcName) {
|
||
source = removeFunction(source, funcName);
|
||
});
|
||
|
||
// insert new DRY code after the method assignments
|
||
var snippet = getMethodAssignments(source);
|
||
source = source.replace(snippet, snippet + '\n' +
|
||
' // add `_.' + funcNames.join('`, `_.') + '`\n' +
|
||
' ' + iteratorName + '({\n ' + objectSnippets.join(',\n ') + '\n }, function(className, key) {\n' +
|
||
" lodash['is' + key] = function(value) {\n" +
|
||
' return toString.call(value) == className;\n' +
|
||
' };\n' +
|
||
' });\n'
|
||
);
|
||
}());
|
||
|
||
/*------------------------------------------------------------------------*/
|
||
|
||
if (isLegacy) {
|
||
['isBindFast', 'nativeBind', 'nativeIsArray', 'nativeKeys'].forEach(function(varName) {
|
||
source = removeVar(source, varName);
|
||
});
|
||
|
||
['bind', 'isArray'].forEach(function(methodName) {
|
||
var snippet = matchFunction(source, methodName),
|
||
modified = snippet;
|
||
|
||
// remove native `Function#bind` branch in `_.bind`
|
||
if (methodName == 'bind') {
|
||
modified = modified.replace(/(?:\s*\/\/.*)*\s*return isBindFast[^:]+:\s*/, 'return ');
|
||
}
|
||
// remove native `Array.isArray` branch in `_.isArray`
|
||
else {
|
||
modified = modified.replace(/nativeIsArray * \|\|/, '');
|
||
}
|
||
source = source.replace(snippet, modified);
|
||
});
|
||
|
||
// replace `_.keys` with `shimKeys`
|
||
if (!isRemoved(source, 'keys')) {
|
||
source = source.replace(
|
||
matchFunction(source, 'keys').replace(/[\s\S]+?var keys *=/, ''),
|
||
matchFunction(source, 'shimKeys').replace(/[\s\S]+?var shimKeys *=/, '')
|
||
);
|
||
|
||
source = removeFunction(source, 'shimKeys');
|
||
}
|
||
// replace `_.isArguments` with fallback
|
||
if (!isRemoved(source, 'isArguments')) {
|
||
source = source.replace(
|
||
matchFunction(source, 'isArguments').replace(/[\s\S]+?function isArguments/, ''),
|
||
getIsArgumentsFallback(source).match(/isArguments *= *function([\s\S]+?) *};/)[1] + ' }\n'
|
||
);
|
||
|
||
source = removeIsArgumentsFallback(source);
|
||
}
|
||
|
||
source = removeVar(source, 'reNative');
|
||
source = removeFromCreateIterator(source, 'nativeKeys');
|
||
}
|
||
|
||
if (isMobile) {
|
||
// inline all functions defined with `createIterator`
|
||
_.functions(lodash).forEach(function(methodName) {
|
||
// match `methodName` with pseudo private `_` prefixes removed to allow matching `shimKeys`
|
||
var reFunc = RegExp('(\\bvar ' + methodName.replace(/^_/, '') + ' *= *)createIterator\\(((?:{|[a-zA-Z])[\\s\\S]+?)\\);\\n');
|
||
|
||
// skip if not defined with `createIterator`
|
||
if (!reFunc.test(source)) {
|
||
return;
|
||
}
|
||
// extract, format, and inject the compiled function's source code
|
||
source = source.replace(reFunc, '$1' + getFunctionSource(lodash[methodName]) + ';\n');
|
||
});
|
||
|
||
// replace `callee` in `_.merge` with `merge`
|
||
source = source.replace(matchFunction(source, 'merge'), function(match) {
|
||
return match.replace(/\bcallee\b/g, 'merge');
|
||
});
|
||
|
||
if (isUnderscore) {
|
||
// replace `noArgsClass` from `isArguments` fallback
|
||
source = source.replace(getIsArgumentsFallback(source), function(match) {
|
||
return match.replace('noArgsClass', '!isArguments(arguments)');
|
||
});
|
||
} else {
|
||
source = removeIsArgumentsFallback(source);
|
||
}
|
||
|
||
// remove `hasDontEnumBug`, `hasObjectSpliceBug`, `iteratesOwnLast`, `noArgsEnum` assignment
|
||
source = source.replace(/(?:\n +\/\*[^*]*\*+(?:[^\/][^*]*\*+)*\/)?\n *var hasDontEnumBug\b[\s\S]+?}\(1\)\);\n/, '');
|
||
|
||
// remove `iteratesOwnLast` from `isPlainObject`
|
||
source = source.replace(/(?:\s*\/\/.*)*\n( +)if *\(iteratesOwnLast[\s\S]+?\n\1}/, '');
|
||
|
||
// remove JScript [[DontEnum]] fix from `_.isEqual`
|
||
source = source.replace(/(?:\s*\/\/.*)*\n( +)if *\(hasDontEnumBug[\s\S]+?\n\1}/, '');
|
||
|
||
// remove `hasObjectSpliceBug` fix from the mutator Array functions mixin
|
||
source = source.replace(/(?:\s*\/\/.*)*\n( +)if *\(hasObjectSpliceBug[\s\S]+?\n\1}/, '');
|
||
|
||
// remove `noArraySliceOnStrings` from `_.toArray`
|
||
source = source.replace(/noArraySliceOnStrings *\?[^:]+: *([^)]+)/g, '$1');
|
||
|
||
// remove `noCharByIndex` from `_.reduceRight`
|
||
source = source.replace(/noCharByIndex *&&[^:]+: *([^;]+)/g, '$1');
|
||
|
||
source = removeVar(source, 'extendIteratorOptions');
|
||
source = removeVar(source, 'iteratorTemplate');
|
||
source = removeVar(source, 'noArraySliceOnStrings');
|
||
source = removeVar(source, 'noCharByIndex');
|
||
source = removeNoArgsClass(source);
|
||
source = removeNoNodeClass(source);
|
||
}
|
||
else {
|
||
// inline `iteratorTemplate` template
|
||
source = source.replace(/(( +)var iteratorTemplate *= *)[\s\S]+?\n\2.+?;\n/, (function() {
|
||
var snippet = getFunctionSource(lodash._iteratorTemplate);
|
||
|
||
// prepend data object references to property names to avoid having to
|
||
// use a with-statement
|
||
iteratorOptions.forEach(function(property) {
|
||
snippet = snippet.replace(RegExp('([^\\w.])\\b' + property + '\\b', 'g'), '$1obj.' + property);
|
||
});
|
||
|
||
// remove unnecessary code
|
||
snippet = snippet
|
||
.replace(/var __t.+/, "var __p = '';")
|
||
.replace(/function print[^}]+}/, '')
|
||
.replace(/'(?:\\n|\s)+'/g, "''")
|
||
.replace(/__p *\+= *' *';/g, '')
|
||
.replace(/(__p *\+= *)' *' *\+/g, '$1')
|
||
.replace(/(\{) *;|; *(\})/g, '$1$2')
|
||
.replace(/\(\(__t *= *\( *([^)]+) *\)\) *== *null *\? *'' *: *__t\)/g, '$1');
|
||
|
||
// remove the with-statement
|
||
snippet = snippet.replace(/ *with *\(.+?\) *{/, '\n').replace(/}([^}]*}[^}]*$)/, '$1');
|
||
|
||
// minor cleanup
|
||
snippet = snippet
|
||
.replace(/obj *\|\| *\(obj *= *\{}\);/, '')
|
||
.replace(/var __p = '';\s*__p \+=/, 'var __p =');
|
||
|
||
// remove comments, including sourceURLs
|
||
snippet = snippet.replace(/\s*\/\/.*(?:\n|$)/g, '');
|
||
|
||
return '$1' + snippet + ';\n';
|
||
}()));
|
||
}
|
||
|
||
/*------------------------------------------------------------------------*/
|
||
|
||
// customize Lo-Dash's export bootstrap
|
||
if (exportsOptions.indexOf('amd') == -1) {
|
||
source = source.replace(/(?: *\/\/.*\n)*( +)if *\(typeof +define[\s\S]+?else /, '$1');
|
||
}
|
||
if (exportsOptions.indexOf('node') == -1) {
|
||
source = source.replace(/(?: *\/\/.*\n)* *if *\(typeof +module[\s\S]+?else *{\n([\s\S]+?) *}\n/, '$1');
|
||
}
|
||
if (exportsOptions.indexOf('commonjs') == -1) {
|
||
source = source.replace(/(?: *\/\/.*\n)*(?:( +)else *{)?\s*freeExports\._ *=.+(\n\1})?\n/, '');
|
||
}
|
||
if (exportsOptions.indexOf('global') == -1) {
|
||
source = source.replace(/(?:( +)else *{)?(?:\s*\/\/.*)*\s*window\._ *= *lodash.+(\n\1})?\n/g, '');
|
||
}
|
||
|
||
// remove `if (freeExports) {...}` if it's empty
|
||
source = source.replace(/(?: *\/\/.*\n)* *(?:else )?if *\(freeExports\) *{\s*}(?:\s*else *{\n([\s\S]+?) *})?/, '$1');
|
||
|
||
if ((source.match(/\bfreeExports\b/g) || []).length < 2) {
|
||
source = source.replace(/var freeExports *=[\s\S]+?;\n/, '');
|
||
}
|
||
|
||
/*------------------------------------------------------------------------*/
|
||
|
||
// customize Lo-Dash's IIFE
|
||
(function() {
|
||
if (iife) {
|
||
var token = '%output%',
|
||
index = iife.indexOf(token);
|
||
|
||
source = source.match(/\/\*![\s\S]+?\*\/\n/) +
|
||
iife.slice(0, index) +
|
||
source.replace(/^[^(]+?\(function[^{]+?{|}\(this\)\)[;\s]*$/g, '') +
|
||
iife.slice(index + token.length);
|
||
}
|
||
}());
|
||
|
||
/*------------------------------------------------------------------------*/
|
||
|
||
// modify/remove references to removed methods/variables
|
||
if (isRemoved(source, 'isArguments')) {
|
||
source = replaceVar(source, 'noArgsClass', 'false');
|
||
}
|
||
if (isRemoved(source, 'isFunction')) {
|
||
source = removeIsFunctionFallback(source);
|
||
}
|
||
if (isRemoved(source, 'mixin')) {
|
||
// remove `LoDash` constructor
|
||
source = removeFunction(source, 'LoDash');
|
||
// remove `LoDash` calls
|
||
source = source.replace(/(?:new +LoDash(?!\()|(?:new +)?LoDash\([^)]*\));?/g, '');
|
||
// remove `LoDash.prototype` additions
|
||
source = source.replace(/(?:\s*\/\/.*)*\s*LoDash.prototype *=[\s\S]+?\/\*-+\*\//, '');
|
||
// remove `hasObjectSpliceBug` assignment
|
||
source = source.replace(/(?:\n +\/\*[^*]*\*+(?:[^\/][^*]*\*+)*\/)?\n *var hasObjectSpliceBug;|.+?hasObjectSpliceBug *=.+/g, '');
|
||
}
|
||
|
||
// remove pseudo private properties
|
||
source = source.replace(/(?:(?:\s*\/\/.*)*\s*lodash\._[^=]+=.+\n)+/g, '\n');
|
||
|
||
// assign debug source before further modifications that rely on the minifier
|
||
// to remove unused variables and other dead code
|
||
debugSource = source;
|
||
|
||
// remove associated functions, variables, and code snippets that the minifier may miss
|
||
if (isRemoved(source, 'clone')) {
|
||
source = source.replace(/(?:\n +\/\*[^*]*\*+(?:[^\/][^*]*\*+)*\/)?\n *var cloneableClasses *=[\s\S]+?true;\n/g, '');
|
||
}
|
||
if (isRemoved(source, 'isArray')) {
|
||
source = removeVar(source, 'nativeIsArray');
|
||
}
|
||
if (isRemoved(source, 'keys')) {
|
||
source = removeFunction(source, 'shimKeys');
|
||
}
|
||
if (isRemoved(source, 'template')) {
|
||
// remove `templateSettings` assignment
|
||
source = source.replace(/(?:\n +\/\*[^*]*\*+(?:[^\/][^*]*\*+)*\/)?\n *lodash\.templateSettings[\s\S]+?};\n/, '');
|
||
}
|
||
if (isRemoved(source, 'toArray')) {
|
||
source = removeVar(source, 'noArraySliceOnStrings');
|
||
}
|
||
if (isUnderscore
|
||
? isRemoved(source, 'merge')
|
||
: isRemoved(source, 'clone', 'merge')
|
||
) {
|
||
source = removeFunction(source, 'isPlainObject');
|
||
}
|
||
if (isRemoved(source, 'clone', 'isArguments', 'isEmpty', 'isEqual')) {
|
||
source = removeNoArgsClass(source);
|
||
}
|
||
if (isRemoved(source, 'isEqual', 'isPlainObject')) {
|
||
source = removeNoNodeClass(source);
|
||
}
|
||
if ((source.match(/\bcreateIterator\b/g) || []).length < 2) {
|
||
source = removeFunction(source, 'createIterator');
|
||
source = source.replace(/(?:\n +\/\*[^*]*\*+(?:[^\/][^*]*\*+)*\/)?\n *var noArgsEnum;|.+?noArgsEnum *=.+/g, '');
|
||
}
|
||
if (isRemoved(source, 'createIterator', 'bind')) {
|
||
source = removeVar(source, 'isBindFast');
|
||
source = removeVar(source, 'isStrictFast');
|
||
source = removeVar(source, 'nativeBind');
|
||
}
|
||
if (isRemoved(source, 'createIterator', 'bind', 'isArray', 'keys')) {
|
||
source = removeVar(source, 'reNative');
|
||
}
|
||
if (isRemoved(source, 'createIterator', 'isEmpty', 'isEqual')) {
|
||
source = source.replace(/(?:\n +\/\*[^*]*\*+(?:[^\/][^*]*\*+)*\/)?\n *var arrayLikeClasses *=[\s\S]+?true;\n/g, '');
|
||
}
|
||
if (isRemoved(source, 'createIterator', 'isEqual')) {
|
||
source = source.replace(/(?:\n +\/\*[^*]*\*+(?:[^\/][^*]*\*+)*\/)?\n *var hasDontEnumBug;|.+?hasDontEnumBug *=.+/g, '');
|
||
}
|
||
if (isRemoved(source, 'createIterator', 'isPlainObject')) {
|
||
source = source.replace(/(?:\n +\/\*[^*]*\*+(?:[^\/][^*]*\*+)*\/)?\n *var iteratesOwnLast;|.+?iteratesOwnLast *=.+/g, '');
|
||
}
|
||
if (isRemoved(source, 'createIterator', 'keys')) {
|
||
source = removeVar(source, 'nativeKeys');
|
||
}
|
||
if (!source.match(/var (?:hasDontEnumBug|hasObjectSpliceBug|iteratesOwnLast|noArgsEnum)\b/g)) {
|
||
// remove `hasDontEnumBug`, `hasObjectSpliceBug`, `iteratesOwnLast`, and `noArgsEnum` assignment
|
||
source = source.replace(/ *\(function\(\) *{[\s\S]+?}\(1\)\);/, '');
|
||
}
|
||
|
||
debugSource = cleanupSource(debugSource);
|
||
source = cleanupSource(source);
|
||
|
||
/*------------------------------------------------------------------------*/
|
||
|
||
// used to specify creating a custom build
|
||
var isCustom = !_.isEqual(exportsOptions, exportsAll) || filterType || iife || isBackbone || isLegacy || isMobile || isStrict || isUnderscore;
|
||
|
||
// used to specify the output path for builds
|
||
var outputPath = options.reduce(function(result, value, index) {
|
||
return result || (/^(?:-o|--output)$/.test(value) ? options[index + 1] : result);
|
||
}, '');
|
||
|
||
// used to name temporary files created in `dist/`
|
||
var workingName = 'lodash' + (isCustom ? '.custom' : '') + '.min';
|
||
|
||
// output debug build
|
||
if (isCustom && !outputPath && !isStdOut) {
|
||
callback(debugSource, path.join(cwd, 'lodash.custom.js'));
|
||
}
|
||
// begin the minification process
|
||
minify(source, {
|
||
'silent': isSilent,
|
||
'workingName': workingName,
|
||
'onComplete': function(source) {
|
||
// correct overly aggressive Closure Compiler minification
|
||
source = source.replace(/prototype\s*=\s*{\s*valueOf\s*:\s*1\s*}/, 'prototype={valueOf:1,y:1}');
|
||
|
||
// inject "use strict" directive
|
||
if (isStrict) {
|
||
source = source.replace(/^(\/\*![\s\S]+?\*\/\n;\(function[^)]+\){)([^'"])/, '$1"use strict";$2');
|
||
}
|
||
if (isStdOut) {
|
||
stdout.write(source);
|
||
callback(source);
|
||
} else {
|
||
callback(source, outputPath || path.join(cwd, workingName + '.js'));
|
||
}
|
||
}
|
||
});
|
||
}
|
||
|
||
/*--------------------------------------------------------------------------*/
|
||
|
||
// expose `build`
|
||
if (module != require.main) {
|
||
module.exports = build;
|
||
}
|
||
else {
|
||
// or invoked directly
|
||
build(process.argv, function(source, filepath) {
|
||
filepath && fs.writeFileSync(filepath, source, 'utf8');
|
||
});
|
||
}
|
||
}());
|