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Current file header is : /*! showdown v 2.0.0-alpha1 - 25-09-2018 */ Official 2.0.0-alpha doesn't match neither on content nor date :( Considering date we would be at 1.8.7, but it is also quite different (and has vulnerabilities) In consequence switching to 2.0.0.
60 lines
2.0 KiB
JavaScript
60 lines
2.0 KiB
JavaScript
import { YError } from '../yerror.js';
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let previouslyVisitedConfigs = [];
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let shim;
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export function applyExtends(config, cwd, mergeExtends, _shim) {
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shim = _shim;
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let defaultConfig = {};
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if (Object.prototype.hasOwnProperty.call(config, 'extends')) {
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if (typeof config.extends !== 'string')
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return defaultConfig;
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const isPath = /\.json|\..*rc$/.test(config.extends);
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let pathToDefault = null;
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if (!isPath) {
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try {
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pathToDefault = require.resolve(config.extends);
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}
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catch (_err) {
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return config;
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}
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}
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else {
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pathToDefault = getPathToDefaultConfig(cwd, config.extends);
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}
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checkForCircularExtends(pathToDefault);
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previouslyVisitedConfigs.push(pathToDefault);
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defaultConfig = isPath
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? JSON.parse(shim.readFileSync(pathToDefault, 'utf8'))
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: require(config.extends);
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delete config.extends;
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defaultConfig = applyExtends(defaultConfig, shim.path.dirname(pathToDefault), mergeExtends, shim);
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}
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previouslyVisitedConfigs = [];
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return mergeExtends
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? mergeDeep(defaultConfig, config)
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: Object.assign({}, defaultConfig, config);
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}
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function checkForCircularExtends(cfgPath) {
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if (previouslyVisitedConfigs.indexOf(cfgPath) > -1) {
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throw new YError(`Circular extended configurations: '${cfgPath}'.`);
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}
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}
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function getPathToDefaultConfig(cwd, pathToExtend) {
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return shim.path.resolve(cwd, pathToExtend);
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}
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function mergeDeep(config1, config2) {
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const target = {};
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function isObject(obj) {
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return obj && typeof obj === 'object' && !Array.isArray(obj);
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}
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Object.assign(target, config1);
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for (const key of Object.keys(config2)) {
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if (isObject(config2[key]) && isObject(target[key])) {
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target[key] = mergeDeep(config1[key], config2[key]);
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}
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else {
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target[key] = config2[key];
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}
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}
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return target;
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}
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