|
| 1 | +const fs = require('fs'); |
| 2 | +const path = require('path'); |
| 3 | + |
| 4 | +const BASE_PATH = '__base__'; |
| 5 | + |
| 6 | +// Utils |
| 7 | +function parseEnvKey(key) { |
| 8 | + return key |
| 9 | + .slice(3) |
| 10 | + .replace(/__/g, '.') |
| 11 | + .split('.'); |
| 12 | +} |
| 13 | + |
| 14 | +function castEnvValueTypes(value) { |
| 15 | + switch (value) { |
| 16 | + case 'true': |
| 17 | + return true; |
| 18 | + case 'false': |
| 19 | + return false; |
| 20 | + default: |
| 21 | + return value; |
| 22 | + } |
| 23 | +} |
| 24 | + |
| 25 | +function setValueByPath(path, obj, value) { |
| 26 | + let tmpConfig = obj; |
| 27 | + path.forEach((pathPart, i) => { |
| 28 | + if (!(pathPart in tmpConfig)) { |
| 29 | + tmpConfig[pathPart] = {}; |
| 30 | + } |
| 31 | + |
| 32 | + if (i === path.length - 1) { |
| 33 | + tmpConfig[pathPart] = value; |
| 34 | + } else { |
| 35 | + tmpConfig = tmpConfig[pathPart]; |
| 36 | + } |
| 37 | + }); |
| 38 | +} |
| 39 | + |
| 40 | +function buildObjectsMap(object, path = BASE_PATH) { |
| 41 | + const objMap = { [path]: Object.assign({}, object) }; |
| 42 | + Object.keys(object).forEach((key) => { |
| 43 | + if (object[key] !== null && !Array.isArray(object[key]) && typeof object[key] === 'object') { |
| 44 | + delete objMap[path][key]; |
| 45 | + Object.assign(objMap, buildObjectsMap(object[key], `${path}.${key}`)); |
| 46 | + } |
| 47 | + }); |
| 48 | + return objMap; |
| 49 | +} |
| 50 | + |
| 51 | +function configDeepAssign(...configs) { |
| 52 | + const [baseConfig, ...anotherConfigs] = configs; |
| 53 | + |
| 54 | + // Make result config map |
| 55 | + const resConfigMap = buildObjectsMap(baseConfig); |
| 56 | + anotherConfigs.forEach((config) => { |
| 57 | + const configMap = buildObjectsMap(config); |
| 58 | + Object.keys(configMap).forEach((key) => { |
| 59 | + if (key in resConfigMap) { |
| 60 | + Object.assign(resConfigMap[key], configMap[key]); |
| 61 | + delete configMap[key]; |
| 62 | + } |
| 63 | + }); |
| 64 | + Object.assign(resConfigMap, configMap); |
| 65 | + }); |
| 66 | + |
| 67 | + // Make config from map |
| 68 | + const result = {}; |
| 69 | + Object.keys(resConfigMap).forEach((key) => { |
| 70 | + if (key === BASE_PATH) { |
| 71 | + Object.assign(result, resConfigMap[key]); |
| 72 | + } else { |
| 73 | + const path = key.replace(`${BASE_PATH}.`, '').split('.'); |
| 74 | + setValueByPath(path, result, resConfigMap[key]); |
| 75 | + } |
| 76 | + }); |
| 77 | + |
| 78 | + return result; |
| 79 | +} |
| 80 | + |
| 81 | +// Config Getters |
| 82 | +function getEnvironmentConfig() { |
| 83 | + const envConfig = {}; |
| 84 | + Object.keys(process.env).forEach((envKey) => { |
| 85 | + if (!envKey.startsWith('PW_')) { |
| 86 | + return; |
| 87 | + } |
| 88 | + |
| 89 | + const path = parseEnvKey(envKey); |
| 90 | + const value = castEnvValueTypes(process.env[envKey]); |
| 91 | + setValueByPath(path, envConfig, value); |
| 92 | + }); |
| 93 | + return envConfig; |
| 94 | +} |
| 95 | + |
| 96 | +// Configs |
| 97 | +const defaultConfig = require(path.resolve(__dirname, 'config.js')); // Default |
| 98 | + |
| 99 | +const configPath = process.env.GUI_CONFIG_PRESET_NAME |
| 100 | + ? path.resolve(__dirname, `config.${process.env.GUI_CONFIG_PRESET_NAME}.js`) |
| 101 | + : ''; |
| 102 | +const presetConfig = fs.existsSync(configPath) ? require(configPath) : {}; // Preset |
| 103 | + |
| 104 | +const LOCAL_CONFIG_PATH = path.resolve(__dirname, 'config.local.js'); |
| 105 | +const localConfig = fs.existsSync(LOCAL_CONFIG_PATH) && process.env.NODE_ENV !== 'production' |
| 106 | + ? require(LOCAL_CONFIG_PATH) |
| 107 | + : {}; // Local |
| 108 | + |
| 109 | +const fileConfig = {}; // Custom file |
| 110 | + |
| 111 | +const envConfig = getEnvironmentConfig(); // Environment |
| 112 | + |
| 113 | +const QA_CONFIG_PATH = path.resolve(__dirname, 'config.qa.js'); |
| 114 | +const qaConfig = fs.existsSync(QA_CONFIG_PATH) ? require(QA_CONFIG_PATH) : {}; // QA |
| 115 | + |
| 116 | +// Build result config |
| 117 | +const config = configDeepAssign( |
| 118 | + defaultConfig, |
| 119 | + presetConfig, |
| 120 | + localConfig, |
| 121 | + fileConfig, |
| 122 | + envConfig, |
| 123 | + qaConfig, |
| 124 | +); |
| 125 | + |
| 126 | +module.exports = config; |
0 commit comments