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9 | 'use strict';
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10 |
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11 | var path = require('path');
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12 | var chalk = require('chalk');
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13 | var maxmin = require('maxmin');
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14 | var uriPath = require('uri-path');
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15 | var err;
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16 |
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17 |
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18 | function relativePath(file1, file2) {
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19 | var file1Dirname = path.dirname(file1);
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20 | var file2Dirname = path.dirname(file2);
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21 |
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22 | if (file1Dirname !== file2Dirname) {
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23 | return path.relative(file1Dirname, file2Dirname);
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24 | }
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25 | return '';
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26 | }
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27 |
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28 |
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29 | function normalizeLf(string) {
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30 | return string.replace(/\r\n/g, '\n');
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31 | }
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32 |
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33 | module.exports = function(grunt) {
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34 |
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35 | var uglify = require('./lib/uglify').init(grunt);
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36 |
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37 | var getAvailableFiles = function (filesArray) {
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38 | return filesArray.filter(function (filepath) {
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39 | if (!grunt.file.exists(filepath)) {
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40 | grunt.log.warn('Source file ' + chalk.cyan(filepath) + ' not found');
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41 | return false;
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42 | }
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43 | return true;
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44 | });
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45 | };
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46 |
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47 | grunt.registerMultiTask('uglify', 'Minify files with UglifyJS.', function() {
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48 |
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49 | var options = this.options({
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50 | banner: '',
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51 | footer: '',
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52 | compress: {},
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53 | mangle: {},
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54 | beautify: false,
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55 | report: 'min',
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56 | ie8: false
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57 | });
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58 |
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59 | var footer = normalizeLf(options.footer);
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60 | var mapNameGenerator, mapInNameGenerator;
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61 | var created = {
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62 | maps: 0,
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63 | files: 0
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64 | };
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65 | var size = {
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66 | before: 0,
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67 | after: 0
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68 | };
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69 | var generateSourceMapURL = options.sourceMap && !options.sourceMap.url;
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70 | var generateSourceMapFilename = options.sourceMap && !options.sourceMap.filename;
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71 |
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72 |
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73 | if (typeof options.sourceMapName === 'function') {
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74 | mapNameGenerator = options.sourceMapName;
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75 | }
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76 |
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77 |
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78 | this.files.forEach(function (f) {
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79 | var availableFiles = getAvailableFiles(f.src);
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80 |
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81 | if (availableFiles.length === 0) {
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82 | grunt.log.warn('Destination ' + chalk.cyan(f.dest) + ' not written because src files were empty.');
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83 | return;
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84 | }
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85 |
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86 |
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87 | if (typeof options.sourceMapIn === 'function') {
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88 | if (availableFiles.length !== 1) {
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89 | grunt.fail.warn('Cannot generate `sourceMapIn` for multiple source files.');
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90 | }
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91 | mapInNameGenerator = options.sourceMapIn;
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92 | }
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93 |
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94 |
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95 | if (mapNameGenerator) {
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96 | try {
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97 | options.generatedSourceMapName = mapNameGenerator(f.dest);
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98 | } catch (e) {
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99 | err = new Error('SourceMap failed.');
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100 | err.origError = e;
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101 | grunt.fail.warn(err);
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102 | }
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103 |
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104 | } else if (!options.sourceMapName) {
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105 | options.generatedSourceMapName = f.dest + '.map';
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106 | } else {
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107 | options.generatedSourceMapName = options.sourceMapName;
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108 | }
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109 |
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110 |
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111 | if (mapInNameGenerator) {
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112 | try {
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113 | options.sourceMapIn = mapInNameGenerator(availableFiles[0]);
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114 | } catch (e) {
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115 | err = new Error('SourceMapInName failed.');
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116 | err.origError = e;
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117 | grunt.fail.warn(err);
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118 | }
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119 | }
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120 |
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121 | if (options.sourceMap) {
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122 | if (typeof options.sourceMap !== 'object') {
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123 | options.sourceMap = {};
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124 | }
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125 | if (options.sourceMapIn) {
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126 | options.sourceMap.content = grunt.file.read(options.sourceMapIn);
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127 | }
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128 |
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129 | if (generateSourceMapURL) {
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130 | if (generateSourceMapFilename) {
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131 | options.sourceMap.filename = path.basename(f.dest);
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132 | }
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133 | var destToSourceMapPath = relativePath(f.dest, options.generatedSourceMapName);
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134 | var sourceMapBasename = path.basename(options.generatedSourceMapName);
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135 | options.sourceMap.url = uriPath(path.join(destToSourceMapPath, sourceMapBasename));
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136 | }
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137 | }
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138 |
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139 |
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140 | var result;
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141 | try {
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142 | result = uglify.minify(availableFiles, f.dest, options);
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143 | } catch (e) {
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144 | console.log(e);
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145 | err = new Error('Uglification failed.');
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146 | if (e.message) {
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147 | err.message += '\n' + e.message + '. \n';
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148 | if (e.line) {
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149 | err.message += 'Line ' + e.line + ' in ' + availableFiles + '\n';
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150 | }
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151 | }
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152 | err.origError = e;
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153 | grunt.log.warn('Uglifying source ' + chalk.cyan(availableFiles) + ' failed.');
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154 | grunt.fail.warn(err);
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155 | }
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156 |
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157 |
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158 | var output = result.min + footer;
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159 |
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160 | var unCompiledJSString = availableFiles.map(function (file) {
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161 | return grunt.file.read(file);
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162 | }).join('');
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163 |
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164 |
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165 | grunt.file.write(f.dest, output);
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166 |
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167 | size.before += unCompiledJSString.length;
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168 |
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169 |
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170 | if (options.sourceMap) {
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171 | grunt.file.write(options.generatedSourceMapName, result.sourceMap);
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172 | grunt.verbose.writeln('File ' + chalk.cyan(options.generatedSourceMapName) + ' created (source map).');
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173 | created.maps++;
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174 | }
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175 |
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176 | var outputSize = maxmin(result.max, output, options.report === 'gzip');
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177 | grunt.verbose.writeln('File ' + chalk.cyan(f.dest) + ' created: ' + chalk.dim(outputSize));
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178 |
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179 | created.files++;
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180 | size.after += output.length;
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181 | });
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182 |
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183 | if (created.maps > 0) {
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184 | grunt.log.ok(created.maps + ' source' + grunt.util.pluralize(created.maps, 'map/maps') + ' created.');
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185 | }
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186 |
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187 | if (created.files > 0) {
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188 | grunt.log.ok(created.files + ' ' + grunt.util.pluralize(this.files.length, 'file/files') + ' created ' + chalk.dim(maxmin(size.before, size.after)));
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189 | } else {
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190 | grunt.log.warn('No files created.');
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191 | }
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192 | });
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193 | };
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