120 lines
2.8 KiB
JavaScript
120 lines
2.8 KiB
JavaScript
/**
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* Manifest Configuration Loader
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* Handles loading, caching, and accessing manifest configuration
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* File: tools/cli/lib/config-loader.js
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*/
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const fs = require('fs-extra');
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const yaml = require('js-yaml');
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const path = require('node:path');
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/**
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* ManifestConfigLoader
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* Loads and caches manifest configuration files
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*/
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class ManifestConfigLoader {
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constructor() {}
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/**
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* Load manifest configuration from YAML file
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* @param {string} manifestPath - Path to manifest file
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* @returns {Promise<Object>} Loaded configuration object
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* @throws {Error} If YAML is invalid
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*/
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async loadManifest(manifestPath) {
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try {
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// Return cached config if same path
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if (this.manifestPath === manifestPath && this.config !== null) {
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return this.config;
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}
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// Check if file exists
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if (!fs.existsSync(manifestPath)) {
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this.config = {};
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this.manifestPath = manifestPath;
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return this.config;
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}
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// Read and parse YAML
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const fileContent = fs.readFileSync(manifestPath, 'utf8');
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const parsed = yaml.load(fileContent);
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// Cache the configuration
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this.config = parsed || {};
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this.manifestPath = manifestPath;
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return this.config;
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} catch (error) {
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// Re-throw parsing errors
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if (error instanceof yaml.YAMLException) {
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throw new TypeError(`Invalid YAML in manifest: ${error.message}`);
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}
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throw error;
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}
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}
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/**
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* Get configuration value by key
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* Supports nested keys using dot notation (e.g., "nested.key")
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* @param {string} key - Configuration key
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* @param {*} defaultValue - Default value if key not found
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* @returns {*} Configuration value or default
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*/
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getConfig(key, defaultValue) {
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if (this.config === null) {
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return defaultValue;
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}
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// Handle nested keys with dot notation
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const keys = key.split('.');
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let value = this.config;
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for (const k of keys) {
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if (value && typeof value === 'object' && k in value) {
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value = value[k];
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} else {
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return defaultValue;
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}
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}
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return value;
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}
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/**
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* Check if configuration key exists
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* @param {string} key - Configuration key
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* @returns {boolean} True if key exists
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*/
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hasConfig(key) {
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if (this.config === null) {
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return false;
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}
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// Handle nested keys with dot notation
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const keys = key.split('.');
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let value = this.config;
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for (const k of keys) {
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if (value && typeof value === 'object' && k in value) {
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value = value[k];
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} else {
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return false;
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}
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}
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return true;
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}
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/**
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* Clear cached configuration
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*/
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clearCache() {
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this.config = null;
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this.manifestPath = null;
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}
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config = null;
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manifestPath = null;
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}
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module.exports = { ManifestConfigLoader };
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