81 lines
3.3 KiB
JavaScript
81 lines
3.3 KiB
JavaScript
"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.createCacheKey = createCacheKey;
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exports.createCacheKeyWithDirectoryAsync = createCacheKeyWithDirectoryAsync;
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exports.ensureCacheDirectory = ensureCacheDirectory;
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exports.getImageFromCacheAsync = getImageFromCacheAsync;
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exports.cacheImageAsync = cacheImageAsync;
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exports.clearUnusedCachesAsync = clearUnusedCachesAsync;
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const crypto_1 = __importDefault(require("crypto"));
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const fs_1 = __importDefault(require("fs"));
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const path_1 = require("path");
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const CACHE_LOCATION = '.expo/web/cache/production/images';
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const cacheKeys = {};
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// Calculate SHA256 Checksum value of a file based on its contents
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function calculateHash(filePath) {
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const contents = filePath.startsWith('http') ? filePath : fs_1.default.readFileSync(filePath);
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return crypto_1.default.createHash('sha256').update(contents).digest('hex');
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}
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// Create a hash key for caching the images between builds
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function createCacheKey(fileSource, properties) {
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const hash = calculateHash(fileSource);
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return [hash].concat(properties).filter(Boolean).join('-');
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}
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async function createCacheKeyWithDirectoryAsync(projectRoot, type, icon) {
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const iconProperties = [icon.resizeMode];
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if (icon.backgroundColor) {
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iconProperties.push(icon.backgroundColor);
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}
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const cacheKey = `${type}-${createCacheKey(icon.src, iconProperties)}`;
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if (!(cacheKey in cacheKeys)) {
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cacheKeys[cacheKey] = await ensureCacheDirectory(projectRoot, type, cacheKey);
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}
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return cacheKey;
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}
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async function ensureCacheDirectory(projectRoot, type, cacheKey) {
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const cacheFolder = (0, path_1.join)(projectRoot, CACHE_LOCATION, type, cacheKey);
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await fs_1.default.promises.mkdir(cacheFolder, { recursive: true });
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return cacheFolder;
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}
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async function getImageFromCacheAsync(fileName, cacheKey) {
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try {
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return await fs_1.default.promises.readFile((0, path_1.resolve)(cacheKeys[cacheKey], fileName));
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}
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catch {
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return null;
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}
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}
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async function cacheImageAsync(fileName, buffer, cacheKey) {
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try {
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await fs_1.default.promises.writeFile((0, path_1.resolve)(cacheKeys[cacheKey], fileName), buffer);
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}
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catch (error) {
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console.warn(`Error caching image: "${fileName}". ${error.message}`);
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}
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}
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async function clearUnusedCachesAsync(projectRoot, type) {
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// Clean up any old caches
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const cacheFolder = (0, path_1.join)(projectRoot, CACHE_LOCATION, type);
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await fs_1.default.promises.mkdir(cacheFolder, { recursive: true });
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const currentCaches = await fs_1.default.promises.readdir(cacheFolder);
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if (!Array.isArray(currentCaches)) {
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console.warn('Failed to read the icon cache');
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return;
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}
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const deleteCachePromises = [];
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for (const cache of currentCaches) {
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// skip hidden folders
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if (cache.startsWith('.')) {
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continue;
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}
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// delete
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if (!(cache in cacheKeys)) {
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deleteCachePromises.push(fs_1.default.promises.rm((0, path_1.join)(cacheFolder, cache), { force: true, recursive: true }));
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}
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}
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await Promise.all(deleteCachePromises);
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}
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//# sourceMappingURL=Cache.js.map
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