jsr-exports-lint/dist/lint-ChuUrGpT.js

JSR exports field lint for bundlers

import fs from "node:fs";
import path from "node:path";
import pc from "picocolors";

//#region src/validator.ts
/**
* @author kazuya kawaguchi (a.k.a. @kazupon)
* @license MIT
*/
function validateJsrExports(entries, jsr, cwd = ".") {
	const result = {};
	for (const [key, value] of Object.entries(entries)) {
		const isBarrelFile = key.endsWith("/index");
		const shortenedKey = isBarrelFile ? key.slice(0, -6) : key;
		const shortenedExportKey = shortenedKey === "index" ? "." : `./${shortenedKey}`;
		const fullExportKey = key === "index" ? "." : `./${key}`;
		const exportKey = isBarrelFile && !jsr[shortenedExportKey] && jsr[fullExportKey] ? fullExportKey : shortenedExportKey;
		const resolvedValue = path.isAbsolute(value) ? value : path.resolve(cwd, value);
		if (jsr[exportKey]) result[exportKey] = path.resolve(cwd, jsr[exportKey]) === resolvedValue ? true : `jsr.exports["${exportKey}"] is ${jsr[exportKey]}, but it's miss-matched in your tsdown entry.`;
		else result[exportKey] = `jsr.exports["${exportKey}"] does not define.`;
	}
	return result;
}

//#endregion
//#region src/lint.ts
/**
* @author kazuya kawaguchi (a.k.a. @kazupon)
* @license MIT
*/
/**
* Lint the `exports` field of the JSR manifest file.
* @param options An lint options, about details, see {@link LintOptions}
*/
async function lint({ jsrPath = path.resolve(process.cwd(), "jsr.json"), entries = {}, cwd = ".", silent = false } = {}) {
	if (!fs.existsSync(jsrPath)) throw new Error(`jsr manifest file not found at ${jsrPath}`);
	const jsr = await import(jsrPath, { with: { type: "json" } }).then((m) => m.default || m);
	if (!jsr.exports) {
		error(pc.dim("No jsr.exports found in jsr.json"));
		process.exit(1);
	}
	const startTime = performance.now();
	const result = validateJsrExports(entries, jsr.exports, cwd);
	const endTime = performance.now();
	const messages = [];
	for (const [_, value] of Object.entries(result)) if (typeof value === "string") messages.push(value);
	if (messages.length > 0) {
		for (const msg of messages) {
			console.log("");
			error(pc.whiteBright(msg));
			console.log("");
		}
		process.exit(1);
	} else if (!silent) console.log(pc.green("✔"), "No JSR exports issues found", pc.dim(`(${(endTime - startTime).toFixed(2)}ms)`));
}
function error(message) {
	console.error(pc.bgRed(pc.black(" ERROR ")), message);
}

//#endregion
export { lint as t };