| 1 | var assign = require("lodash/assign");
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| 2 | var isFunction = require("lodash/isFunction");
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| 3 |
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| 4 | function uglify(source, options) {
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| 5 | var UglifyJS = require("uglify-es");
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| 6 |
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| 7 | var code = source.code;
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| 8 | var existingSourceMap = source.map;
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| 9 | var uglifyOptions = assign({}, options ? options.uglifyOptions : {});
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| 10 |
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| 11 | if (options.sourceMaps) {
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| 12 | var sourceMap = uglifyOptions.sourceMap || {};
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| 13 |
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| 14 | if (existingSourceMap) {
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| 15 | var content = getRawSourceMap(existingSourceMap);
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| 16 | var filename = content.sources && content.sources[0];
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| 17 |
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| 18 | sourceMap.filename = filename;
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| 19 | sourceMap.content = content;
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| 20 | }
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| 21 |
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| 22 | sourceMap.includeSources = !!options.sourceMapsContent;
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| 23 | uglifyOptions.sourceMap = sourceMap;
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| 24 | }
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| 25 |
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| 26 | return UglifyJS.minify(code, uglifyOptions);
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| 27 | }
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| 28 |
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| 29 | function getRawSourceMap(map) {
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| 30 | return isFunction(map.toJSON) ? map.toJSON() : map;
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| 31 | }
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| 32 |
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| 33 | module.exports = uglify;
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| 34 | module.exports.async = function(source, options){
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| 35 | return Promise.resolve().then(function() {
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| 36 | return uglify(source, options);
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| 37 | });
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| 38 | };
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