1 | "use strict";
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2 |
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3 | var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
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4 |
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5 | var _asyncToGenerator2 = _interopRequireDefault(require("@babel/runtime/helpers/asyncToGenerator"));
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6 |
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7 | const Asset = require('../Asset');
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8 |
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9 | const commandExists = require('command-exists');
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10 |
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11 | const localRequire = require('../utils/localRequire');
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12 |
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13 | const _require = require('terser'),
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14 | minify = _require.minify;
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15 |
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16 | const path = require('path');
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17 |
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18 | const spawn = require('cross-spawn');
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19 |
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20 | class ElmAsset extends Asset {
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21 | constructor(name, options) {
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22 | super(name, options);
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23 | this.type = 'js';
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24 | }
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25 |
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26 | parse() {
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27 | var _this = this;
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28 |
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29 | return (0, _asyncToGenerator2.default)(function* () {
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30 | let options = {
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31 | cwd: path.dirname(_this.name)
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32 | };
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33 |
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34 | try {
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35 | yield commandExists('elm');
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36 | } catch (err) {
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37 | yield localRequire('elm', _this.name);
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38 | options.pathToElm = path.join(path.dirname(require.resolve('elm')), 'bin', 'elm');
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39 | }
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40 |
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41 | _this.elm = yield localRequire('node-elm-compiler', _this.name);
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42 |
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43 | let elmConfig = yield _this.getConfig(['elm.json'], {
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44 | load: false
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45 | });
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46 |
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47 | if (!elmConfig) {
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48 | yield _this.createElmConfig(options);
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49 |
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50 | yield _this.getConfig(['elm.json'], {
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51 | load: false
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52 | });
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53 | }
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54 |
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55 | options.debug = !_this.options.production;
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56 |
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57 | if (_this.options.minify) {
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58 | options.optimize = true;
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59 | }
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60 |
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61 | _this.elmOpts = options;
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62 | })();
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63 | }
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64 |
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65 | collectDependencies() {
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66 | var _this2 = this;
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67 |
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68 | return (0, _asyncToGenerator2.default)(function* () {
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69 | let dependencies = yield _this2.elm.findAllDependencies(_this2.name);
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70 | var _iteratorNormalCompletion = true;
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71 | var _didIteratorError = false;
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72 | var _iteratorError = undefined;
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73 |
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74 | try {
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75 | for (var _iterator = dependencies[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
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76 | let dependency = _step.value;
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77 |
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78 | _this2.addDependency(dependency, {
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79 | includedInParent: true
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80 | });
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81 | }
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82 | } catch (err) {
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83 | _didIteratorError = true;
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84 | _iteratorError = err;
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85 | } finally {
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86 | try {
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87 | if (!_iteratorNormalCompletion && _iterator.return != null) {
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88 | _iterator.return();
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89 | }
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90 | } finally {
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91 | if (_didIteratorError) {
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92 | throw _iteratorError;
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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 | createElmConfig(options) {
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100 | return (0, _asyncToGenerator2.default)(function* () {
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101 | let cp = spawn(options.pathToElm || 'elm', ['init']);
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102 | cp.stdin.write('y\n');
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103 | return new Promise((resolve, reject) => {
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104 | cp.on('error', reject);
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105 | cp.on('close', function (code) {
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106 | if (code !== 0) {
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107 | return reject(new Error('elm init failed.'));
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108 | }
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109 |
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110 | return resolve();
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111 | });
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112 | });
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113 | })();
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114 | }
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115 |
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116 | generate() {
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117 | var _this3 = this;
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118 |
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119 | return (0, _asyncToGenerator2.default)(function* () {
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120 | let compiled = yield _this3.elm.compileToString(_this3.name, _this3.elmOpts);
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121 | _this3.contents = compiled.toString();
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122 |
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123 | if (_this3.options.hmr) {
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124 | let _ref = yield localRequire('elm-hot', _this3.name),
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125 | inject = _ref.inject;
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126 |
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127 | _this3.contents = inject(_this3.contents);
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128 | }
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129 |
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130 | let output = _this3.contents;
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131 |
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132 | if (_this3.options.minify) {
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133 | output = pack(output);
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134 | }
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135 |
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136 | return {
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137 | [_this3.type]: output
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138 | };
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139 |
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140 |
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141 |
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142 | function pack(source) {
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143 | let options = {
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144 | compress: {
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145 | keep_fargs: false,
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146 | passes: 2,
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147 | pure_funcs: ['F2', 'F3', 'F4', 'F5', 'F6', 'F7', 'F8', 'F9', 'A2', 'A3', 'A4', 'A5', 'A6', 'A7', 'A8', 'A9'],
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148 | pure_getters: true,
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149 | unsafe: true,
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150 | unsafe_comps: true
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151 | },
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152 | mangle: true,
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153 | rename: false
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154 | };
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155 | let result = minify(source, options);
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156 |
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157 | if (result.error) {
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158 | throw result.error;
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159 | }
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160 |
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161 | return result.code;
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162 | }
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163 | })();
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164 | }
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165 |
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166 | generateErrorMessage(err) {
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167 |
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168 |
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169 | err.stack = '';
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170 | return err;
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171 | }
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172 |
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173 | }
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174 |
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175 | module.exports = ElmAsset; |
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