101 lines
2.6 KiB
JavaScript
101 lines
2.6 KiB
JavaScript
// Inspired by LintResultsCache from ESLint
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// https://github.com/eslint/eslint/blob/c2d0a830754b6099a3325e6d3348c3ba983a677a/lib/cli-engine/lint-result-cache.js
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import stringify from "fast-json-stable-stringify";
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import fileEntryCache from "file-entry-cache";
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import { version as prettierVersion } from "../index.js";
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import { createHash } from "./utils.js";
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const optionsHashCache = new WeakMap();
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const nodeVersion = process.version;
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/**
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* @param {*} options
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* @returns {string}
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*/
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function getHashOfOptions(options) {
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if (optionsHashCache.has(options)) {
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return optionsHashCache.get(options);
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}
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const hash = createHash(
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`${prettierVersion}_${nodeVersion}_${stringify(options)}`,
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);
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optionsHashCache.set(options, hash);
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return hash;
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}
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/**
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* @typedef {{ hashOfOptions?: string }} OurMeta
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* @typedef {import("file-entry-cache").FileDescriptor} FileDescriptor
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*
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* @param {import("file-entry-cache").FileDescriptor} fileDescriptor
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* @returns {FileDescriptor["meta"] & OurMeta}
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*/
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function getMetadataFromFileDescriptor(fileDescriptor) {
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return fileDescriptor.meta;
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}
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class FormatResultsCache {
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#fileEntryCache;
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/**
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* @param {string} cacheFileLocation The path of cache file location. (default: `node_modules/.cache/prettier/.prettier-cache`)
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* @param {string} cacheStrategy
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*/
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constructor(cacheFileLocation, cacheStrategy) {
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const useChecksum = cacheStrategy === "content";
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this.#fileEntryCache = fileEntryCache.create(
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/* cacheId */ cacheFileLocation,
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/* directory */ undefined,
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useChecksum,
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);
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}
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/**
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* @param {string} filePath
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* @param {any} options
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*/
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existsAvailableFormatResultsCache(filePath, options) {
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const fileDescriptor = this.#fileEntryCache.getFileDescriptor(filePath);
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/* c8 ignore next 3 */
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if (fileDescriptor.notFound) {
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return false;
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}
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const hashOfOptions = getHashOfOptions(options);
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const meta = getMetadataFromFileDescriptor(fileDescriptor);
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const changed =
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fileDescriptor.changed || meta.hashOfOptions !== hashOfOptions;
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return !changed;
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}
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/**
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* @param {string} filePath
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* @param {any} options
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*/
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setFormatResultsCache(filePath, options) {
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const fileDescriptor = this.#fileEntryCache.getFileDescriptor(filePath);
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const meta = getMetadataFromFileDescriptor(fileDescriptor);
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if (fileDescriptor && !fileDescriptor.notFound) {
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meta.hashOfOptions = getHashOfOptions(options);
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}
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}
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/**
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* @param {string} filePath
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*/
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removeFormatResultsCache(filePath) {
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this.#fileEntryCache.removeEntry(filePath);
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}
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reconcile() {
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this.#fileEntryCache.reconcile();
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}
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}
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export default FormatResultsCache;
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