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110 lines
3.0 KiB
110 lines
3.0 KiB
/*
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* grunt-contrib-uglify
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* http://gruntjs.com/
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*
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* Copyright (c) 2012 "Cowboy" Ben Alman, contributors
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* Licensed under the MIT license.
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*/
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'use strict';
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module.exports = function(grunt) {
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// Internal lib.
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var contrib = require('grunt-lib-contrib').init(grunt);
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var uglify = require('./lib/uglify').init(grunt);
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grunt.registerMultiTask('uglify', 'Minify files with UglifyJS.', function() {
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// Merge task-specific and/or target-specific options with these defaults.
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var options = this.options({
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banner: '',
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compress: {
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warnings: false
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},
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mangle: {},
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beautify: false,
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report: false
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});
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// Process banner.
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var banner = grunt.template.process(options.banner);
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var mapNameGenerator, mappingURLGenerator;
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// Iterate over all src-dest file pairs.
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this.files.forEach(function(f) {
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var src = f.src.filter(function(filepath) {
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// Warn on and remove invalid source files (if nonull was set).
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if (!grunt.file.exists(filepath)) {
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grunt.log.warn('Source file "' + filepath + '" not found.');
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return false;
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} else {
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return true;
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}
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});
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// function to get the name of the sourceMap
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if (typeof options.sourceMap === "function") {
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mapNameGenerator = options.sourceMap;
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}
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// function to get the sourceMappingURL
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if (typeof options.sourceMappingURL === "function") {
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mappingURLGenerator = options.sourceMappingURL;
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}
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if (mapNameGenerator) {
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try {
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options.sourceMap = mapNameGenerator(f.dest);
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} catch (e) {
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var err = new Error('SourceMapName failed.');
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err.origError = e;
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grunt.fail.warn(err);
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}
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}
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if (mappingURLGenerator) {
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try {
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options.sourceMappingURL = mappingURLGenerator(f.dest);
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} catch (e) {
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var err = new Error('SourceMapName failed.');
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err.origError = e;
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grunt.fail.warn(err);
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}
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}
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// Minify files, warn and fail on error.
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var result;
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try {
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result = uglify.minify(src, f.dest, options);
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} catch (e) {
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var err = new Error('Uglification failed.');
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if (e.msg) {
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err.message += ', ' + e.msg + '.';
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}
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err.origError = e;
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grunt.fail.warn(err);
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}
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// Concat banner + minified source.
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var output = banner + result.min;
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// Write the destination file.
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grunt.file.write(f.dest, output);
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// Write source map
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if (options.sourceMap) {
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grunt.file.write(options.sourceMap, result.sourceMap);
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grunt.log.writeln('Source Map "' + options.sourceMap + '" created.');
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}
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// Print a success message.
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grunt.log.writeln('File "' + f.dest + '" created.');
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// ...and report some size information.
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if (options.report) {
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contrib.minMaxInfo(result.min, result.max, options.report);
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}
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});
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});
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};
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