text: import sys
  import os
  
  LOOKUP_EXTENSIONS = [".cshtml", ".gif", ".jpg", ".png", ".js", ".css"]
  FILES_TO_SEARCH = [".cshtml", ".cs", ".css", ".less", ".js"]
  
  def main(argv):
  	directory = argv[0]
  
  	files_to_look_for = find_view_files_in_directory(directory)
  
  	print_break()
  	print("Loading files...")
  	print_break()
  
  	print("files to look for: {0}".format(len(files_to_look_for)))
  	print_break()
  
  	print("Looking for unused files...")
  	print_break()
  
  	results = {'using': [], 'not_using': []}
  
  	for file_name in files_to_look_for:
  		references, looked_at = find_references_for_view_file(directory, file_name)
  
  		if references:
  			results['using'].append(file_name)
  		else:
  			results['not_using'].append(file_name)
  
  	print("USING: {0} files".format(len(results['using'])))
  	print("NOT USING: {0} files".format(len(results['not_using'])))
  	for file in results['not_using']:
  		print(file)
  
  def print_break():
  	print("-" * 45)
  
  def prepare_file_name_to_look_for(file_name):
  	if ".cshtml" in file_name:
  		return file_name.replace(".cshtml", "")
  
  	return file_name
  
  def find_references_for_view_file(directory, file_name):
  	using = []
  	looking_in = []
  
  	for root, directories, files in os.walk(directory):
  		for filename in [f for f in files if any([f.endswith(ext) for ext in FILES_TO_SEARCH])]:
  			looking_in.append(os.path.join(root, filename))
  			with open(os.path.join(root, filename), 'r', encoding="ISO-8859-1") as searchfile:
  				content = searchfile.read()
  				if prepare_file_name_to_look_for(file_name) in content:
  					using.append(filename)
  
  	return (using, looking_in)
  
  
  def find_view_files_in_directory(directory):
  	views = []
  
  	for root, directories, files in os.walk(directory):
  		for ext in LOOKUP_EXTENSIONS:
  			for filename in [f for f in files if f.endswith(ext)]:
  				views.append(filename)
  
  	return views
  
  if __name__ == "__main__":
  	if len(sys.argv) == 1:
  		sys.exit("Argument required: application path")
  
  	main(sys.argv[1:])
  