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trim-cache.ts
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trim-cache.ts
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import { loadAssemblies, allTypeScriptSnippets } from '../jsii/assemblies';
import * as logging from '../logging';
import { snippetKey } from '../tablets/key';
import { LanguageTablet } from '../tablets/tablets';
import { isDefined } from '../util';
export interface TrimCacheOptions {
/**
* Locations of assemblies to search for snippets
*/
readonly assemblyLocations: string[];
/**
* Cache to trim
*/
readonly cacheFile: string;
}
export async function trimCache(options: TrimCacheOptions): Promise<void> {
logging.info(`Loading ${options.assemblyLocations.length} assemblies`);
const assemblies = await loadAssemblies(options.assemblyLocations, false);
const snippets = Array.from(await allTypeScriptSnippets(assemblies));
const original = await LanguageTablet.fromFile(options.cacheFile);
const updated = new LanguageTablet();
updated.addSnippets(...snippets.map((snip) => original.tryGetSnippet(snippetKey(snip))).filter(isDefined));
await updated.save(options.cacheFile);
// eslint-disable-next-line prettier/prettier
logging.info(`${options.cacheFile}: ${updated.count} snippets remaining (${original.count} - ${updated.count} trimmed)`);
}