121 lines
3.5 KiB
JavaScript
121 lines
3.5 KiB
JavaScript
const packages = [
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'micropip',
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'packaging',
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'requests',
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'beautifulsoup4',
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'numpy',
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'pandas',
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'matplotlib',
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'scikit-learn',
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'scipy',
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'regex',
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'sympy',
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'tiktoken',
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'seaborn',
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'pytz'
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];
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import { loadPyodide } from 'pyodide';
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import { setGlobalDispatcher, ProxyAgent } from 'undici';
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import { writeFile, readFile, copyFile, readdir, rmdir } from 'fs/promises';
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/**
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* Loading network proxy configurations from the environment variables.
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* And the proxy config with lowercase name has the highest priority to use.
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*/
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function initNetworkProxyFromEnv() {
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// we assume all subsequent requests in this script are HTTPS:
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// https://cdn.jsdelivr.net
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// https://pypi.org
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// https://files.pythonhosted.org
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const allProxy = process.env.all_proxy || process.env.ALL_PROXY;
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const httpsProxy = process.env.https_proxy || process.env.HTTPS_PROXY;
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const httpProxy = process.env.http_proxy || process.env.HTTP_PROXY;
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const preferedProxy = httpsProxy || allProxy || httpProxy;
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/**
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* use only http(s) proxy because socks5 proxy is not supported currently:
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* @see https://github.com/nodejs/undici/issues/2224
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*/
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if (!preferedProxy || !preferedProxy.startsWith('http')) return;
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let preferedProxyURL;
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try {
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preferedProxyURL = new URL(preferedProxy).toString();
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} catch {
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console.warn(`Invalid network proxy URL: "${preferedProxy}"`);
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return;
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}
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const dispatcher = new ProxyAgent({ uri: preferedProxyURL });
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setGlobalDispatcher(dispatcher);
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console.log(`Initialized network proxy "${preferedProxy}" from env`);
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}
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async function downloadPackages() {
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console.log('Setting up pyodide + micropip');
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let pyodide;
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try {
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pyodide = await loadPyodide({
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packageCacheDir: 'static/pyodide'
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});
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} catch (err) {
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console.error('Failed to load Pyodide:', err);
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return;
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}
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const packageJson = JSON.parse(await readFile('package.json'));
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const pyodideVersion = packageJson.dependencies.pyodide.replace('^', '');
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try {
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const pyodidePackageJson = JSON.parse(await readFile('static/pyodide/package.json'));
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const pyodidePackageVersion = pyodidePackageJson.version.replace('^', '');
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if (pyodideVersion !== pyodidePackageVersion) {
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console.log('Pyodide version mismatch, removing static/pyodide directory');
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await rmdir('static/pyodide', { recursive: true });
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}
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} catch (e) {
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console.log('Pyodide package not found, proceeding with download.');
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}
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try {
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console.log('Loading micropip package');
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await pyodide.loadPackage('micropip');
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const micropip = pyodide.pyimport('micropip');
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console.log('Downloading Pyodide packages:', packages);
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try {
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for (const pkg of packages) {
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console.log(`Installing package: ${pkg}`);
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await micropip.install(pkg);
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}
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} catch (err) {
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console.error('Package installation failed:', err);
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return;
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}
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console.log('Pyodide packages downloaded, freezing into lock file');
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try {
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const lockFile = await micropip.freeze();
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await writeFile('static/pyodide/pyodide-lock.json', lockFile);
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} catch (err) {
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console.error('Failed to write lock file:', err);
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}
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} catch (err) {
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console.error('Failed to load or install micropip:', err);
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}
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}
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async function copyPyodide() {
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console.log('Copying Pyodide files into static directory');
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// Copy all files from node_modules/pyodide to static/pyodide
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for await (const entry of await readdir('node_modules/pyodide')) {
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await copyFile(`node_modules/pyodide/${entry}`, `static/pyodide/${entry}`);
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}
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}
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initNetworkProxyFromEnv();
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await downloadPackages();
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await copyPyodide();
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