Find duplicate filenames within a path

find-duplicate-filenames.py

#!/usr/bin/python

'''
Tool to find files with the same name within a directory.
Developed to help with detection of unused files that weren't being detected as unused by require.js as they had the same names as other files that were being imported.

usage:
  python find-duplicate-filenames.py [path]
options:
  path: path on which to look. Defaults to the current working directory.
'''

import os
import sys

rootPath = sys.argv[1] if len(sys.argv) >= 2 else "."
filenames = {}

for root, dirs, files in os.walk(rootPath):
    for file in files:
        if filenames.has_key(file):
            filenames[file].append(os.path.join(root, file))
        else:
            filenames[file] = [os.path.join(root, file)]

for filename in filenames:
    filepaths = filenames[filename]
    if len(filepaths) > 1:
        print filename + " duplicated at:"
        for filepath in filepaths:
            print filepath.replace(rootPath, "", 1)
        print ""