Initial commit

node_modules/tsconfck/src/find.js

@@ -0,0 +1,70 @@
+import path from 'node:path';
+import fs from 'node:fs';
+import { isInNodeModules, makePromise } from './util.js';
+/**
+ * find the closest tsconfig.json file
+ *
+ * @param {string} filename - path to file to find tsconfig for (absolute or relative to cwd)
+ * @param {import('./public.d.ts').TSConfckFindOptions} [options] - options
+ * @returns {Promise<string|null>} absolute path to closest tsconfig.json or null if not found
+ */
+export async function find(filename, options) {
+	let dir = path.dirname(path.resolve(filename));
+	if (options?.ignoreNodeModules && isInNodeModules(dir)) {
+		return null;
+	}
+	const cache = options?.cache;
+	const configName = options?.configName ?? 'tsconfig.json';
+	if (cache?.hasConfigPath(dir, configName)) {
+		return cache.getConfigPath(dir, configName);
+	}
+	const { /** @type {Promise<string|null>} */ promise, resolve, reject } = makePromise();
+	if (options?.root && !path.isAbsolute(options.root)) {
+		options.root = path.resolve(options.root);
+	}
+	findUp(dir, { promise, resolve, reject }, options);
+	return promise;
+}
+
+/**
+ *
+ * @param {string} dir
+ * @param {{promise:Promise<string|null>,resolve:(result:string|null)=>void,reject:(err:any)=>void}} madePromise
+ * @param {import('./public.d.ts').TSConfckFindOptions} [options] - options
+ */
+function findUp(dir, { resolve, reject, promise }, options) {
+	const { cache, root, configName } = options ?? {};
+	if (cache) {
+		if (cache.hasConfigPath(dir, configName)) {
+			let cached;
+			try {
+				cached = cache.getConfigPath(dir, configName);
+			} catch (e) {
+				reject(e);
+				return;
+			}
+			if (cached?.then) {
+				cached.then(resolve).catch(reject);
+			} else {
+				resolve(cached);
+			}
+		} else {
+			cache.setConfigPath(dir, promise, configName);
+		}
+	}
+	const tsconfig = path.join(dir, options?.configName ?? 'tsconfig.json');
+	fs.stat(tsconfig, (err, stats) => {
+		if (stats && (stats.isFile() || stats.isFIFO())) {
+			resolve(tsconfig);
+		} else if (err?.code !== 'ENOENT') {
+			reject(err);
+		} else {
+			let parent;
+			if (root === dir || (parent = path.dirname(dir)) === dir) {
+				resolve(null);
+			} else {
+				findUp(parent, { promise, resolve, reject }, options);
+			}
+		}
+	});
+}