experimenting with using native path methods to try and fix windows bugs

src/utils/path.js

@@ -11,68 +11,4 @@ export function isRelative ( path ) {
 	return relativePath.test( path );
 }
 
-export function basename ( path ) {
+export { basename, dirname, extname, relative, resolve } from 'path';
-	return path.split( /(\/|\\)/ ).pop();
-}
-
-export function dirname ( path ) {
-	const match = /(\/|\\)[^\/\\]*$/.exec( path );
-	if ( !match ) return '.';
-
-	const dir = path.slice( 0, -match[0].length );
-
-	// If `dir` is the empty string, we're at root.
-	return dir ? dir : '/';
-}
-
-export function extname ( path ) {
-	const match = /\.[^\.]+$/.exec( basename( path ) );
-	if ( !match ) return '';
-	return match[0];
-}
-
-export function relative ( from, to ) {
-	const fromParts = from.split( /[\/\\]/ ).filter( Boolean );
-	const toParts = to.split( /[\/\\]/ ).filter( Boolean );
-
-	while ( fromParts[0] && toParts[0] && fromParts[0] === toParts[0] ) {
-		fromParts.shift();
-		toParts.shift();
-	}
-
-	while ( toParts[0] === '.' || toParts[0] === '..' ) {
-		const toPart = toParts.shift();
-		if ( toPart === '..' ) {
-			fromParts.pop();
-		}
-	}
-
-	while ( fromParts.pop() ) {
-		toParts.unshift( '..' );
-	}
-
-	return toParts.join( '/' );
-}
-
-export function resolve ( ...paths ) {
-	let resolvedParts = paths.shift().split( /[\/\\]/ );
-
-	paths.forEach( path => {
-		if ( isAbsolute( path ) ) {
-			resolvedParts = path.split( /[\/\\]/ );
-		} else {
-			const parts = path.split( /[\/\\]/ );
-
-			while ( parts[0] === '.' || parts[0] === '..' ) {
-				const part = parts.shift();
-				if ( part === '..' ) {
-					resolvedParts.pop();
-				}
-			}
-
-			resolvedParts.push.apply( resolvedParts, parts );
-		}
-	});
-
-	return resolvedParts.join( '/' ); // TODO windows...
-}