astro/dist/core/cache/vite-plugin.js

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

import { fileURLToPath } from "node:url";
import { AstroError } from "../errors/errors.js";
import { CacheProviderNotFound } from "../errors/errors-data.js";
import { normalizeCacheProviderConfig } from "./utils.js";
export const VIRTUAL_CACHE_PROVIDER_ID = "virtual:astro:cache-provider";
const RESOLVED_VIRTUAL_CACHE_PROVIDER_ID = "\0" + VIRTUAL_CACHE_PROVIDER_ID;
export function vitePluginCacheProvider({ settings }) {
	const providerConfig = settings.config.cache?.provider;
	if (!providerConfig) {
		return;
	}
	return {
		name: VIRTUAL_CACHE_PROVIDER_ID,
		enforce: "pre",
		resolveId: {
			filter: { id: new RegExp(`^${VIRTUAL_CACHE_PROVIDER_ID}$`) },
			handler() {
				return RESOLVED_VIRTUAL_CACHE_PROVIDER_ID;
			}
		},
		load: {
			filter: { id: new RegExp(`^${RESOLVED_VIRTUAL_CACHE_PROVIDER_ID}$`) },
			async handler() {
				const provider = normalizeCacheProviderConfig(providerConfig);
				// Use the project root as the importer so that adapter-provided
				// providers (e.g. astro/cache/memory) resolve from the project's
				// node_modules, not from astro core's location.
				const importerPath = fileURLToPath(new URL("package.json", settings.config.root));
				let resolved;
				try {
					resolved = await this.resolve(provider.entrypoint, importerPath);
				} catch {}
				if (!resolved) {
					const displayName = provider.name ?? provider.entrypoint;
					throw new AstroError({
						...CacheProviderNotFound,
						message: CacheProviderNotFound.message(displayName)
					});
				}
				return { code: `import { default as _default } from ${JSON.stringify(resolved.id)};\nexport * from ${JSON.stringify(resolved.id)};\nexport default _default;` };
			}
		}
	};
}