cache.js

import path from "path";
import fs from "fs/promises";
import { useProject } from "./project.js";
import { Logger } from "./logger.js";
import { lazy } from "./util/lazy.js";
export const useCache = lazy(async () => {
    const project = useProject();
    const cache = path.join(project.paths.out, "cache");
    await fs.mkdir(cache, {
        recursive: true,
    });
    async function write(key, data) {
        const full = path.join(cache, key);
        Logger.debug("Writing cache", full, data.length, "bytes");
        await fs.writeFile(full, data);
    }
    async function read(key) {
        const full = path.join(cache, key);
        try {
            const data = await fs.readFile(full);
            return data.toString();
        }
        catch {
            return null;
        }
    }
    return {
        write,
        read,
    };
});