src/vs/workbench/contrib/search/browser/searchView.ts/SearchView/searchInFolders
class SearchView:	searchInFolders(folderPaths: string[] = []): void {
		if (!folderPaths.length || folderPaths.some(folderPath => folderPath === '.')) {
			this.inputPatternIncludes.setValue('');
			this.searchWidget.focus();
			return;
		}

		// Show 'files to include' box
		if (!this.showsFileTypes()) {
			this.toggleQueryDetails(true, true);
		}

		this.inputPatternIncludes.setValue(folderPaths.join(', '));
		this.searchWidget.focus(false);
	}