file-namedup-caseclash

#!/usr/bin/python3

# TODO: merge into file-namedup

""" Checks under given directories 
    for file and directory entries that will be confusing to case-insensitive filesystem APIs (such as windows's)
"""

import os, sys

args = sys.argv[1:]

if len(args)==0:
    sys.stderr.write('Defaulting to look under current directory\n')
    args=['.']

for arg in args:
    arg = os.path.abspath(arg)
    for indir, dirs, files in os.walk( arg ):
        sofar_low = {}
        for entry in dirs+files:
            entry_low = entry.lower()
            if entry_low not in sofar_low:
                sofar_low[entry_low] = [ entry ]
            else:
                sofar_low[entry_low].append( entry )

        printed_this_dir = False
        for entry_low in sorted(sofar_low): # an implicitly case-insensitive sort            
            entries = sofar_low[entry_low]
            if len(entries)>1:
                if not printed_this_dir:
                    printed_this_dir = True
                    print( "# Issues under %r"%indir)
                for i,entry in enumerate(entries):
                    entry_abs = os.path.join(indir,entry)
                    print( "  %r"%entry_abs)
                print()