139 lines
3.8 KiB
JavaScript
139 lines
3.8 KiB
JavaScript
// fetch-and-parse-android-studio-latest-stable-version.mjs
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import { load } from 'cheerio';
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import { fileURLToPath } from 'node:url';
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const URL = 'https://developer.android.com/studio?hl=en';
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/**
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* @param {string} s
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* @return {string}
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*/
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function norm(s) {
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return (s ?? '').replace(/\s+/g, ' ').trim();
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}
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/**
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* @param {string} filename
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* @return {string | null}
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*/
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function buildDownloadUrlFromFilename(filename) {
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// 例: android-studio-2025.1.2.13-windows.exe
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const m = /android-studio-([\d.]+)-/.exec(filename);
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if (!m) return null;
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const version = m[1];
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return `https://redirector.gvt1.com/edgedl/android/studio/install/${version}/${filename}`;
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}
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/**
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* @param {string} url
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* @return {Promise<string>}
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*/
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async function fetchHtml(url) {
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const res = await fetch(url, {
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headers: {
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'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124 Safari/537.36',
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'accept-language': 'en',
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},
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});
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if (!res.ok) throw new Error(`HTTP ${res.status} for ${url}`);
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return await res.text();
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}
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/**
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* @typedef {'exe' | 'zip' | 'other'} RowKind
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*/
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/**
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* @typedef {Object} Row
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* @property {string} platform
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* @property {string} filename
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* @property {string} size
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* @property {string} sha256
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* @property {string | null} url
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* @property {RowKind} kind
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*/
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/**
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* @param {string} html
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* @return {Row[]}
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*/
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function parseWindowsRowsFromHtml(html) {
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const $ = load(html);
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const rows = [];
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/** @type {import('cheerio').Cheerio<import('domhandler').Element>} */
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const tableRows = $('table.download tbody tr');
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tableRows.each((_, tr) => {
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const tds = $(tr).find('td');
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if (tds.length !== 4) return;
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const platform = norm($(tds[0]).text());
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if (!/windows/i.test(platform)) return;
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const btn = $(tds[1]).find('button.devsite-dialog-button').first();
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const filename = norm(btn.text());
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if (!filename || !filename.includes('android-studio')) return;
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const size = norm($(tds[2]).text());
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const sha256 = norm($(tds[3]).text());
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const url = buildDownloadUrlFromFilename(filename);
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rows.push({
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platform,
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filename,
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size,
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sha256,
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url,
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kind: filename.endsWith('.exe')
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? 'exe'
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: filename.endsWith('.zip')
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? 'zip'
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: 'other',
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});
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});
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return rows
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.filter(r => r.kind === 'exe' || r.kind === 'zip')
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.sort((a) => a.kind === 'exe' ? -1 : 1);
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}
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/**
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* 导出: 获取最新稳定版 Windows 的下载信息 (exe 与 zip)
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* 返回形如:
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* [
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* { platform, filename, size, sha256, url, kind: 'exe' },
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* { platform, filename, size, sha256, url, kind: 'zip' }
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* ]
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*
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* @param {string} [sourceUrl=URL]
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* @returns {Promise<Row[]>}
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*/
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export async function getLatestStableWindows(sourceUrl = URL) {
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const html = await fetchHtml(sourceUrl);
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const rows = parseWindowsRowsFromHtml(html);
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if (!rows.length) {
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throw new Error('未在页面中找到 Windows 稳定版下载条目');
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}
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return rows;
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}
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// CLI 模式: 直接运行则打印结果; 被 import 时不执行
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async function main() {
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const rows = await getLatestStableWindows(URL);
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for (const r of rows) {
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console.log(`${r.kind.toUpperCase()}:`);
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console.log(` filename : ${r.filename}`);
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console.log(` size : ${r.size}`);
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console.log(` sha256 : ${r.sha256}`);
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console.log(` url : ${r.url}`);
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}
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}
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// 判断是否为直接执行该文件
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if (fileURLToPath(import.meta.url) === process.argv[1]) {
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main().catch(err => {
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console.error(err);
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process.exitCode = 1;
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});
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}
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