metro-cache-key

import { createCacheKey } from 'metro-cache-key'; import crypto from 'crypto'; // Simulate a basic configuration object for which a cache key is needed // In a real Metro context, this config would be more complex and passed by Metro itself. const projectConfig = { root: '/path/to/my/project', transformerPath: 'metro-react-native-babel-transformer', resolverPath: 'metro-resolver', babelConfig: { presets: ['module:metro-react-native-babel-preset'], plugins: ['react-native-reanimated/plugin'], }, platform: 'ios', dev: true, // Other factors like Node.js version, Metro version, etc., might also be included environmentHash: process.env.NODE_VERSION || 'unknown_node_version', }; // This `generateSimpleCacheKey` function is illustrative. The actual `createCacheKey` // from the package would handle complex serialization and hashing internally. function generateSimpleCacheKey(config: any): string { const configString = JSON.stringify(config, Object.keys(config).sort()); return crypto.createHash('md5').update(configString).digest('hex'); } // Example usage, conceptually aligning with how `metro-cache-key` might be used // The actual `createCacheKey` from the package would be called directly. const cacheKey = createCacheKey ? createCacheKey(projectConfig) : generateSimpleCacheKey(projectConfig); console.log(`Generated cache key: ${cacheKey}`); // If a critical input changes, the cache key should change, invalidating previous caches. const anotherConfig = { ...projectConfig, dev: false }; const anotherCacheKey = createCacheKey ? createCacheKey(anotherConfig) : generateSimpleCacheKey(anotherConfig); console.log(`Another cache key (dev: false): ${anotherCacheKey}`); if (cacheKey === anotherCacheKey) { console.warn('Warning: Cache keys should differ if configuration changes!'); }