1 | 'use strict';
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2 |
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3 | function _asyncToGenerator(fn) { return function () { var gen = fn.apply(this, arguments); return new Promise(function (resolve, reject) { function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { return Promise.resolve(value).then(function (value) { step("next", value); }, function (err) { step("throw", err); }); } } return step("next"); }); }; }
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4 |
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5 | const fs = require('./utils/fs');
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6 | const path = require('path');
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7 | const md5 = require('./utils/md5');
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8 | const objectHash = require('./utils/objectHash');
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9 | const pkg = require('../package.json');
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10 | const logger = require('./Logger');
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11 |
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12 |
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13 | const OPTION_KEYS = ['publicURL', 'minify', 'hmr', 'target'];
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14 |
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15 | class FSCache {
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16 | constructor(options) {
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17 | this.dir = path.resolve(options.cacheDir || '.cache');
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18 | this.dirExists = false;
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19 | this.invalidated = new Set();
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20 | this.optionsHash = objectHash(OPTION_KEYS.reduce((p, k) => (p[k] = options[k], p), {
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21 | version: pkg.version
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22 | }));
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23 | }
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24 |
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25 | ensureDirExists() {
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26 | var _this = this;
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27 |
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28 | return _asyncToGenerator(function* () {
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29 | yield fs.mkdirp(_this.dir);
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30 | _this.dirExists = true;
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31 | })();
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32 | }
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33 |
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34 | getCacheFile(filename) {
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35 | let hash = md5(this.optionsHash + filename);
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36 | return path.join(this.dir, hash + '.json');
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37 | }
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38 |
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39 | writeDepMtimes(data) {
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40 | return _asyncToGenerator(function* () {
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41 |
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42 | var _iteratorNormalCompletion = true;
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43 | var _didIteratorError = false;
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44 | var _iteratorError = undefined;
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45 |
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46 | try {
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47 | for (var _iterator = data.dependencies[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
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48 | let dep = _step.value;
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49 |
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50 | if (dep.includedInParent) {
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51 | let stats = yield fs.stat(dep.name);
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52 | dep.mtime = stats.mtime.getTime();
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53 | }
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54 | }
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55 | } catch (err) {
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56 | _didIteratorError = true;
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57 | _iteratorError = err;
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58 | } finally {
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59 | try {
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60 | if (!_iteratorNormalCompletion && _iterator.return) {
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61 | _iterator.return();
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62 | }
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63 | } finally {
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64 | if (_didIteratorError) {
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65 | throw _iteratorError;
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66 | }
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67 | }
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68 | }
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69 | })();
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70 | }
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71 |
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72 | write(filename, data) {
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73 | var _this2 = this;
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74 |
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75 | return _asyncToGenerator(function* () {
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76 | try {
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77 | yield _this2.ensureDirExists();
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78 | yield _this2.writeDepMtimes(data);
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79 | yield fs.writeFile(_this2.getCacheFile(filename), JSON.stringify(data));
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80 | _this2.invalidated.delete(filename);
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81 | } catch (err) {
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82 | logger.error('Error writing to cache', err);
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83 | }
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84 | })();
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85 | }
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86 |
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87 | checkDepMtimes(data) {
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88 | return _asyncToGenerator(function* () {
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89 |
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90 |
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91 | var _iteratorNormalCompletion2 = true;
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92 | var _didIteratorError2 = false;
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93 | var _iteratorError2 = undefined;
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94 |
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95 | try {
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96 | for (var _iterator2 = data.dependencies[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
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97 | let dep = _step2.value;
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98 |
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99 | if (dep.includedInParent) {
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100 | let stats = yield fs.stat(dep.name);
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101 | if (stats.mtime > dep.mtime) {
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102 | return false;
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103 | }
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104 | }
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105 | }
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106 | } catch (err) {
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107 | _didIteratorError2 = true;
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108 | _iteratorError2 = err;
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109 | } finally {
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110 | try {
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111 | if (!_iteratorNormalCompletion2 && _iterator2.return) {
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112 | _iterator2.return();
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113 | }
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114 | } finally {
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115 | if (_didIteratorError2) {
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116 | throw _iteratorError2;
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117 | }
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118 | }
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119 | }
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120 |
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121 | return true;
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122 | })();
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123 | }
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124 |
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125 | read(filename) {
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126 | var _this3 = this;
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127 |
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128 | return _asyncToGenerator(function* () {
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129 | if (_this3.invalidated.has(filename)) {
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130 | return null;
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131 | }
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132 |
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133 | let cacheFile = _this3.getCacheFile(filename);
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134 |
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135 | try {
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136 | let stats = yield fs.stat(filename);
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137 | let cacheStats = yield fs.stat(cacheFile);
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138 |
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139 | if (stats.mtime > cacheStats.mtime) {
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140 | return null;
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141 | }
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142 |
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143 | let json = yield fs.readFile(cacheFile);
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144 | let data = JSON.parse(json);
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145 | if (!(yield _this3.checkDepMtimes(data))) {
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146 | return null;
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147 | }
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148 |
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149 | return data;
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150 | } catch (err) {
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151 | return null;
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152 | }
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153 | })();
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154 | }
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155 |
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156 | invalidate(filename) {
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157 | this.invalidated.add(filename);
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158 | }
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159 |
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160 | delete(filename) {
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161 | var _this4 = this;
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162 |
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163 | return _asyncToGenerator(function* () {
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164 | try {
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165 | yield fs.unlink(_this4.getCacheFile(filename));
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166 | _this4.invalidated.delete(filename);
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167 | } catch (err) {
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168 |
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169 | }
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170 | })();
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171 | }
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172 | }
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173 |
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174 | module.exports = FSCache; |
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