@electron/get/dist/Cache.js

Utility for downloading artifacts from different versions of Electron

import debug from 'debug';
import envPaths from 'env-paths';
import fs from 'graceful-fs';
import crypto from 'node:crypto';
import path from 'node:path';
import url from 'node:url';
const d = debug('@electron/get:cache');
const defaultCacheRoot = envPaths('electron', {
    suffix: '',
}).cache;
export class Cache {
    cacheRoot;
    constructor(cacheRoot = defaultCacheRoot) {
        this.cacheRoot = cacheRoot;
    }
    static getCacheDirectory(downloadUrl) {
        const parsedDownloadUrl = url.parse(downloadUrl);
        // eslint-disable-next-line @typescript-eslint/no-unused-vars
        const { search, hash, pathname, ...rest } = parsedDownloadUrl;
        const strippedUrl = url.format({ ...rest, pathname: path.dirname(pathname || 'electron') });
        return crypto.createHash('sha256').update(strippedUrl).digest('hex');
    }
    getCachePath(downloadUrl, fileName) {
        return path.resolve(this.cacheRoot, Cache.getCacheDirectory(downloadUrl), fileName);
    }
    getPathForFileInCache(url, fileName) {
        const cachePath = this.getCachePath(url, fileName);
        if (fs.existsSync(cachePath)) {
            return cachePath;
        }
        return null;
    }
    async putFileInCache(url, currentPath, fileName) {
        const cachePath = this.getCachePath(url, fileName);
        d(`Moving ${currentPath} to ${cachePath}`);
        if (!fs.existsSync(path.dirname(cachePath))) {
            await fs.promises.mkdir(path.dirname(cachePath), { recursive: true });
        }
        if (fs.existsSync(cachePath)) {
            d('* Replacing existing file');
            await fs.promises.rm(cachePath, { recursive: true, force: true });
        }
        await fs.promises.rename(currentPath, cachePath);
        return cachePath;
    }
}
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