1 | const path = require('path');
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2 |
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3 | const defaultOptions = {
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4 | spec: false,
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5 | flow: false,
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6 | loose: true,
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7 | react: true,
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8 | es2015: true,
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9 | esnext: true,
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10 | strict: true,
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11 | helpers: false,
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12 | runtime: true,
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13 | modules: true,
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14 | optimize: false,
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15 | typecheck: false,
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16 | development: false
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17 | };
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18 |
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19 | function preset(context, options) {
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20 | const {
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21 | spec,
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22 | flow,
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23 | loose,
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24 | react,
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25 | es2015,
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26 | esnext,
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27 | strict,
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28 | modules,
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29 | helpers,
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30 | runtime,
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31 | optimize,
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32 | typecheck,
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33 | development
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34 | } = Object.assign({}, defaultOptions, options);
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35 |
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36 | const plugins = [];
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37 |
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38 | if (strict) {
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39 | plugins.push(
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40 | require('babel-plugin-transform-strict-mode')
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41 | );
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42 | }
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43 |
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44 | if (helpers) {
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45 | plugins.push(
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46 | require('babel-plugin-external-helpers')
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47 | );
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48 | }
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49 |
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50 | if (runtime) {
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51 | plugins.push(
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52 | [require.resolve('babel-plugin-transform-runtime'), {
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53 | helpers: true,
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54 | polyfill: true,
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55 | regenerator: false,
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56 |
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57 | moduleName: path.dirname(require.resolve('babel-runtime/package'))
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58 | }]
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59 | );
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60 | }
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61 |
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62 | if (esnext) {
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63 | plugins.push(
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64 | require('babel-plugin-transform-class-properties'),
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65 | [require('babel-plugin-transform-object-rest-spread'), { useBuiltIns: runtime }],
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66 | require('babel-plugin-transform-export-extensions')
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67 | );
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68 | }
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69 |
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70 | plugins.push(require('babel-plugin-syntax-flow'));
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71 | if (flow) {
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72 | plugins.push(require('babel-plugin-transform-flow-comments'));
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73 | } else {
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74 | plugins.push(require('babel-plugin-transform-flow-strip-types'));
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75 | }
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76 |
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77 | if (react) {
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78 | plugins.push(
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79 | require('babel-plugin-syntax-jsx'),
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80 | [require('babel-plugin-transform-react-jsx'), { useBuiltIns: runtime }],
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81 | require('babel-plugin-transform-react-display-name')
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82 | );
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83 |
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84 | if (development) {
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85 | plugins.push(
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86 |
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87 | require.resolve('babel-plugin-transform-react-jsx-source'),
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88 |
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89 | require.resolve('babel-plugin-transform-react-jsx-self')
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90 | );
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91 | }
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92 |
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93 | if (optimize) {
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94 | plugins.push(
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95 | require('babel-plugin-transform-react-constant-elements'),
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96 | require('babel-plugin-transform-react-inline-elements')
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97 | );
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98 | }
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99 | }
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100 |
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101 | if (es2015) {
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102 | plugins.push(
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103 | [require('babel-plugin-transform-es2015-template-literals'), { loose, spec }],
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104 | require('babel-plugin-transform-es2015-literals'),
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105 | require('babel-plugin-transform-es2015-function-name'),
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106 | [require('babel-plugin-transform-es2015-arrow-functions'), { spec }],
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107 | require('babel-plugin-transform-es2015-block-scoped-functions'),
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108 | [require('babel-plugin-transform-es2015-classes'), { loose }],
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109 | require('babel-plugin-transform-es2015-object-super'),
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110 | require('babel-plugin-transform-es2015-shorthand-properties'),
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111 | require('babel-plugin-transform-es2015-duplicate-keys'),
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112 | [require('babel-plugin-transform-es2015-computed-properties'), { loose }],
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113 | [require('babel-plugin-transform-es2015-for-of'), { loose }],
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114 | require('babel-plugin-transform-es2015-sticky-regex'),
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115 | require('babel-plugin-transform-es2015-unicode-regex'),
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116 | require('babel-plugin-check-es2015-constants'),
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117 | [require('babel-plugin-transform-es2015-spread'), { loose }],
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118 | require('babel-plugin-transform-es2015-parameters'),
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119 | [require('babel-plugin-transform-es2015-destructuring'), { loose }],
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120 | require('babel-plugin-transform-es2015-block-scoping'),
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121 | require('babel-plugin-transform-es2015-typeof-symbol')
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122 | );
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123 |
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124 | if (modules) {
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125 | plugins.push(
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126 | [require('babel-plugin-transform-es2015-modules-commonjs'), { loose }]
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127 | );
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128 | }
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129 | }
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130 |
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131 | if (typecheck) {
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132 | plugins.push(
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133 | require('babel-plugin-typecheck')
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134 | );
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135 | }
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136 |
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137 | if (optimize) {
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138 | plugins.push(
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139 | require('babel-plugin-lodash')
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140 | );
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141 | }
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142 |
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143 | return {
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144 | plugins
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145 | };
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146 | }
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147 |
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148 | module.exports = preset;
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