179 lines
		
	
	
		
			5.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			179 lines
		
	
	
		
			5.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| 'use strict';
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| 
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| Object.defineProperty(exports, "__esModule", {
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|   value: true
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| });
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| 
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| var _uglifyEs = require('uglify-es');
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| 
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| var _uglifyEs2 = _interopRequireDefault(_uglifyEs);
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| 
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| function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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| 
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| var buildUglifyOptions = function buildUglifyOptions() {
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|   var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
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|       ecma = _ref.ecma,
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|       warnings = _ref.warnings,
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|       _ref$parse = _ref.parse,
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|       parse = _ref$parse === undefined ? {} : _ref$parse,
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|       _ref$compress = _ref.compress,
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|       compress = _ref$compress === undefined ? {} : _ref$compress,
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|       mangle = _ref.mangle,
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|       output = _ref.output,
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|       toplevel = _ref.toplevel,
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|       nameCache = _ref.nameCache,
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|       ie8 = _ref.ie8,
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|       keep_classnames = _ref.keep_classnames,
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|       keep_fnames = _ref.keep_fnames,
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|       safari10 = _ref.safari10;
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| 
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|   return {
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|     ecma,
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|     warnings,
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|     parse: Object.assign({}, parse),
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|     compress: typeof compress === 'boolean' ? compress : Object.assign({}, compress),
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|     // eslint-disable-next-line no-nested-ternary
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|     mangle: mangle == null ? true : typeof mangle === 'boolean' ? mangle : Object.assign({}, mangle),
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|     output: Object.assign({
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|       shebang: true,
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|       comments: false,
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|       beautify: false,
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|       semicolons: true
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|     }, output),
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|     // Ignoring sourceMap from options
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|     sourceMap: null,
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|     toplevel,
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|     nameCache,
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|     ie8,
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|     keep_classnames,
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|     keep_fnames,
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|     safari10
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|   };
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| }; /* eslint-disable
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|      arrow-body-style
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|    */
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| 
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| 
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| var buildComments = function buildComments(options, uglifyOptions, extractedComments) {
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|   var condition = {};
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|   var commentsOpts = uglifyOptions.output.comments;
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| 
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|   // /^\**!|@preserve|@license|@cc_on/
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|   if (typeof options.extractComments === 'boolean') {
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|     condition.preserve = commentsOpts;
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|     condition.extract = /^\**!|@preserve|@license|@cc_on/;
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|   } else if (typeof options.extractComments === 'string' || options.extractComments instanceof RegExp) {
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|     // extractComments specifies the extract condition and commentsOpts specifies the preserve condition
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|     condition.preserve = commentsOpts;
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|     condition.extract = options.extractComments;
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|   } else if (typeof options.extractComments === 'function') {
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|     condition.preserve = false;
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|     condition.extract = options.extractComments;
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|   } else if (Object.prototype.hasOwnProperty.call(options.extractComments, 'condition')) {
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|     // Extract condition is given in extractComments.condition
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|     condition.preserve = commentsOpts;
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|     condition.extract = options.extractComments.condition;
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|   } else {
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|     // No extract condition is given. Extract comments that match commentsOpts instead of preserving them
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|     condition.preserve = false;
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|     condition.extract = commentsOpts;
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|   }
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| 
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|   // Ensure that both conditions are functions
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|   ['preserve', 'extract'].forEach(function (key) {
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|     var regexStr = void 0;
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|     var regex = void 0;
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| 
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|     switch (typeof condition[key]) {
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|       case 'boolean':
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|         condition[key] = condition[key] ? function () {
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|           return true;
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|         } : function () {
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|           return false;
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|         };
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| 
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|         break;
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|       case 'function':
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|         break;
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|       case 'string':
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|         if (condition[key] === 'all') {
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|           condition[key] = function () {
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|             return true;
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|           };
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| 
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|           break;
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|         }
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| 
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|         if (condition[key] === 'some') {
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|           condition[key] = function (astNode, comment) {
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|             return comment.type === 'comment2' && /@preserve|@license|@cc_on/i.test(comment.value);
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|           };
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| 
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|           break;
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|         }
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| 
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|         regexStr = condition[key];
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| 
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|         condition[key] = function (astNode, comment) {
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|           return new RegExp(regexStr).test(comment.value);
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|         };
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| 
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|         break;
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|       default:
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|         regex = condition[key];
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| 
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|         condition[key] = function (astNode, comment) {
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|           return regex.test(comment.value);
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|         };
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|     }
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|   });
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| 
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|   // Redefine the comments function to extract and preserve
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|   // comments according to the two conditions
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|   return function (astNode, comment) {
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|     if (condition.extract(astNode, comment)) {
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|       extractedComments.push(comment.type === 'comment2' ? `/*${comment.value}*/` : `//${comment.value}`);
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|     }
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| 
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|     return condition.preserve(astNode, comment);
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|   };
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| };
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| 
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| var minify = function minify(options) {
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|   var file = options.file,
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|       input = options.input,
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|       inputSourceMap = options.inputSourceMap,
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|       extractComments = options.extractComments,
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|       minifyFn = options.minify;
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| 
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| 
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|   if (minifyFn) {
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|     return minifyFn({ [file]: input }, inputSourceMap);
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|   }
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| 
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|   // Copy uglify options
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|   var uglifyOptions = buildUglifyOptions(options.uglifyOptions);
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| 
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|   // Add source map data
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|   if (inputSourceMap) {
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|     uglifyOptions.sourceMap = {
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|       content: inputSourceMap
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|     };
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|   }
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| 
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|   var extractedComments = [];
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| 
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|   if (extractComments) {
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|     uglifyOptions.output.comments = buildComments(options, uglifyOptions, extractedComments);
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|   }
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| 
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|   var _uglify$minify = _uglifyEs2.default.minify({ [file]: input }, uglifyOptions),
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|       error = _uglify$minify.error,
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|       map = _uglify$minify.map,
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|       code = _uglify$minify.code,
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|       warnings = _uglify$minify.warnings;
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| 
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|   return { error, map, code, warnings, extractedComments };
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| };
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| 
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| exports.default = minify; |