Clean up the oopsie. Rebuild the blank exercises.

node_modules/find-up/index.js

@@ -1,53 +1,89 @@
 'use strict';
-var path = require('path');
-var pathExists = require('path-exists');
-var Promise = require('pinkie-promise');
+const path = require('path');
+const locatePath = require('locate-path');
+const pathExists = require('path-exists');
 
-function splitPath(x) {
-	return path.resolve(x || '').split(path.sep);
-}
+const stop = Symbol('findUp.stop');
 
-function join(parts, filename) {
-	return path.resolve(parts.join(path.sep) + path.sep, filename);
-}
+module.exports = async (name, options = {}) => {
+	let directory = path.resolve(options.cwd || '');
+	const {root} = path.parse(directory);
+	const paths = [].concat(name);
 
-module.exports = function (filename, opts) {
-	opts = opts || {};
-
-	var parts = splitPath(opts.cwd);
-
-	return new Promise(function (resolve) {
-		(function find() {
-			var fp = join(parts, filename);
-
-			pathExists(fp).then(function (exists) {
-				if (exists) {
-					resolve(fp);
-				} else if (parts.pop()) {
-					find();
-				} else {
-					resolve(null);
-				}
-			});
-		})();
-	});
-};
-
-module.exports.sync = function (filename, opts) {
-	opts = opts || {};
-
-	var parts = splitPath(opts.cwd);
-	var len = parts.length;
-
-	while (len--) {
-		var fp = join(parts, filename);
-
-		if (pathExists.sync(fp)) {
-			return fp;
+	const runMatcher = async locateOptions => {
+		if (typeof name !== 'function') {
+			return locatePath(paths, locateOptions);
 		}
 
-		parts.pop();
-	}
+		const foundPath = await name(locateOptions.cwd);
+		if (typeof foundPath === 'string') {
+			return locatePath([foundPath], locateOptions);
+		}
 
-	return null;
+		return foundPath;
+	};
+
+	// eslint-disable-next-line no-constant-condition
+	while (true) {
+		// eslint-disable-next-line no-await-in-loop
+		const foundPath = await runMatcher({...options, cwd: directory});
+
+		if (foundPath === stop) {
+			return;
+		}
+
+		if (foundPath) {
+			return path.resolve(directory, foundPath);
+		}
+
+		if (directory === root) {
+			return;
+		}
+
+		directory = path.dirname(directory);
+	}
 };
+
+module.exports.sync = (name, options = {}) => {
+	let directory = path.resolve(options.cwd || '');
+	const {root} = path.parse(directory);
+	const paths = [].concat(name);
+
+	const runMatcher = locateOptions => {
+		if (typeof name !== 'function') {
+			return locatePath.sync(paths, locateOptions);
+		}
+
+		const foundPath = name(locateOptions.cwd);
+		if (typeof foundPath === 'string') {
+			return locatePath.sync([foundPath], locateOptions);
+		}
+
+		return foundPath;
+	};
+
+	// eslint-disable-next-line no-constant-condition
+	while (true) {
+		const foundPath = runMatcher({...options, cwd: directory});
+
+		if (foundPath === stop) {
+			return;
+		}
+
+		if (foundPath) {
+			return path.resolve(directory, foundPath);
+		}
+
+		if (directory === root) {
+			return;
+		}
+
+		directory = path.dirname(directory);
+	}
+};
+
+module.exports.exists = pathExists;
+
+module.exports.sync.exists = pathExists.sync;
+
+module.exports.stop = stop;