Merge pull request #722 from ckeditor/ck/10141

Fix (utils): The `tools.clean()` function will resolve paths correctly on Windows environments. Closes ckeditor/ckeditor5#10141.

packages/ckeditor5-dev-utils/lib/tools.js

@@ -330,7 +330,10 @@ module.exports = {
 	clean( rootDir, glob, options = { verbosity: 'info' } ) {
 		const del = require( 'del' );
 
-		return del( path.join( rootDir, glob ) )
+		const joinedPath = path.join( rootDir, glob );
+		const normalizedPath = joinedPath.split( '\\' ).join( '/' );
+
+		return del( normalizedPath )
 			.then( paths => {
 				const log = require( './logger' )( options.verbosity );
 

packages/ckeditor5-dev-utils/tests/tools.js

@@ -577,6 +577,13 @@ describe( 'utils', () => {
 						expect( infoSpy.secondCall.args[ 0 ] ).to.match( new RegExp( files[ 1 ] ) );
 					} );
 			} );
+
+			it( 'works with paths that contain backslash', () => {
+				return tools.clean( 'test\\path', '**\\packages' )
+					.then( () => {
+						expect( delArg ).to.equal( path.join( 'test/path', '**/packages' ) );
+					} );
+			} );
 		} );
 	} );
 } );