astro/dist/core/config/vite-load.js

Astro is a modern site builder with web best practices, performance, and DX front-of-mind.

import { pathToFileURL } from "node:url";
import { isRunnableDevEnvironment } from "vite";
import loadFallbackPlugin from "../../vite-plugin-load-fallback/index.js";
import { debug } from "../logger/core.js";
import { ASTRO_VITE_ENVIRONMENT_NAMES } from "../constants.js";
import { createMinimalViteDevServer } from "../createMinimalViteDevServer.js";
export async function loadConfigWithVite({ configPath, fs, root }) {
	if (/\.[cm]?js$/.test(configPath)) {
		try {
			const config = await import(pathToFileURL(configPath).toString() + "?t=" + Date.now());
			return config.default ?? {};
		} catch (e) {
			// Normally we silently ignore loading errors here because we'll try loading it again below using Vite
			// However, if the error is because of addons being disabled we rethrow it immediately,
			// because when this happens in Stackblitz, the Vite error below will be uncatchable
			// and we want to provide a more helpful error message.
			if (e && typeof e === "object" && "code" in e && e.code === "ERR_DLOPEN_DISABLED") {
				throw e;
			}
			// We do not need to throw the error here as we have a Vite fallback below
			debug("Failed to load config with Node", e);
		}
	}
	// Try Loading with Vite
	let server;
	try {
		const plugins = loadFallbackPlugin({
			fs,
			root: pathToFileURL(root)
		});
		server = await createMinimalViteDevServer(plugins, root);
		if (isRunnableDevEnvironment(server.environments[ASTRO_VITE_ENVIRONMENT_NAMES.ssr])) {
			const environment = server.environments[ASTRO_VITE_ENVIRONMENT_NAMES.ssr];
			const mod = await environment.runner.import(configPath);
			return mod.default ?? {};
		} else {
			return {};
		}
	} finally {
		if (server) {
			await server.close();
		}
	}
}