1 | 'use strict';
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2 |
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3 | var fs = require('fs');
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4 | var path = require('path');
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5 | var debug = require('debug')('base:generators');
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6 | var utils = require('lazy-cache')(require);
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7 | var fn = require;
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8 | require = utils;
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9 |
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10 |
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11 |
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12 |
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13 |
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14 | require('async-each-series', 'eachSeries');
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15 | require('base-compose', 'compose');
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16 | require('base-cwd', 'cwd');
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17 | require('base-data', 'data');
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18 | require('base-env', 'env');
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19 | require('base-option', 'option');
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20 | require('base-pkg', 'pkg');
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21 | require('base-plugins', 'plugins');
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22 | require('base-task', 'task');
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23 | require('define-property', 'define');
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24 | require('extend-shallow', 'extend');
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25 | require('global-modules', 'gm');
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26 | require('is-valid-app', 'isValid');
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27 | require('is-valid-instance');
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28 | require('kind-of', 'typeOf');
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29 | require('mixin-deep', 'merge');
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30 | require = fn;
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31 |
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32 |
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33 |
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34 |
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35 |
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36 | var lookupCache = {};
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37 |
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38 |
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39 |
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40 |
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41 |
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42 | utils.isValidTasks = function(val) {
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43 | if (!val) return false;
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44 | if (utils.isString(val)) {
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45 | return !/\W/.test(val);
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46 | }
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47 | if (!Array.isArray(val)) {
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48 | return false;
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49 | }
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50 | return val.every(function(str) {
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51 | return utils.isString(str) && !/\W/.test(str);
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52 | });
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53 | };
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54 |
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55 | utils.isGenerator = function(val) {
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56 | return utils.isApp(val, 'Generator');
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57 | };
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58 |
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59 | utils.isApp = function(val, ctorName) {
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60 | return utils.isObject(val) && val['is' + ctorName] === true;
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61 | };
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62 |
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63 |
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64 |
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65 |
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66 |
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67 | utils.isString = function(val) {
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68 | return val && typeof val === 'string';
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69 | };
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70 |
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71 |
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72 |
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73 |
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74 |
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75 | utils.toArray = function(val) {
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76 | if (Array.isArray(val)) {
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77 | return val.reduce(function(acc, str) {
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78 | return acc.concat(utils.toArray(str));
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79 | }, []);
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80 | }
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81 | if (utils.isString(val)) {
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82 | return val.split(',');
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83 | }
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84 | return [];
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85 | };
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86 |
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87 |
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88 |
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89 |
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90 |
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91 | utils.arrayify = function(val) {
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92 | return val ? (Array.isArray(val) ? val : [val]) : [];
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93 | };
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94 |
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95 |
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96 |
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97 |
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98 |
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99 | utils.isObject = function(val) {
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100 | return utils.typeOf(val) === 'object';
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101 | };
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102 |
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103 |
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104 |
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105 |
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106 |
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107 | utils.exists = function(name) {
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108 | if (lookupCache.hasOwnProperty(name)) {
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109 | return lookupCache[name];
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110 | }
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111 |
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112 | function set(name, fp) {
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113 | if (name) lookupCache[name] = true;
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114 | if (fp) lookupCache[fp] = true;
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115 | }
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116 |
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117 | try {
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118 | fs.lstatSync(name);
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119 | set(name);
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120 | return true;
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121 | } catch (err) {};
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122 |
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123 | try {
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124 | var fp = path.resolve('node_modules', name);
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125 | if (lookupCache[fp]) return true;
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126 |
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127 | fs.lstatSync(fp);
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128 | set(name, fp);
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129 | return true;
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130 | } catch (err) {}
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131 |
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132 | try {
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133 | fp = path.resolve(utils.gm, name);
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134 | if (lookupCache[fp]) return true;
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135 | fs.lstatSync(fp);
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136 | set(name, fp);
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137 | return true;
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138 | } catch (err) {}
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139 |
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140 | lookupCache[name] = false;
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141 | return false;
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142 | };
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143 |
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144 |
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145 |
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146 |
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147 |
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148 | utils.handleError = function(app, name, next) {
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149 | return function(err) {
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150 | if (!err) {
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151 | next();
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152 | return;
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153 | }
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154 |
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155 | var msg = utils.formatError(err, app, name);
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156 | if (!msg) {
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157 | next();
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158 | return;
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159 | }
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160 |
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161 | if (msg instanceof Error) {
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162 | next(err);
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163 | return;
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164 | }
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165 |
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166 | next(new Error(msg));
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167 | };
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168 | };
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169 |
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170 | utils.formatError = function(err, app, name) {
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171 | if (err instanceof Error) {
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172 | var match = /task "(.*?)" is not registered/.exec(err.message);
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173 | if (!match) {
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174 | return err;
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175 | }
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176 |
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177 | var taskname = match[1];
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178 | if (taskname === 'default') {
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179 | return;
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180 | }
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181 |
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182 | if (~name.indexOf(':')) {
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183 | var segs = name.split(':');
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184 | taskname = segs[1];
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185 | name = segs[0];
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186 | }
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187 | }
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188 |
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189 | var msg = 'Cannot find ';
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190 | var gen = app.getGenerator(name);
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191 | if (gen && name !== taskname) {
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192 | msg += 'task: "' + taskname + (name !== 'this' ? '" in generator' : '');
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193 | } else {
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194 |
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195 | if (name === 'default') {
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196 | return;
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197 | }
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198 | msg += 'generator';
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199 | }
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200 |
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201 | msg += (name !== 'this' ? ': "' + name + '"' : '');
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202 |
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203 | var cwd = app.get('options.cwd');
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204 | if (cwd) msg += ' in "' + cwd + '"';
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205 | return msg;
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206 | };
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207 |
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208 |
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209 |
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210 |
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211 |
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212 | module.exports = utils;
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