hg

add: notify when adding a file that would cause a case-folding collision

On a case-sensitive file system, files can be added with names that differ
only in case (a "case collision"). This would cause an error on case-insensitive
filesystems. A warning or error is now given for such collisions, depending on
the value of ui.portablefilenames ('warn', 'abort', or 'ignore'):

    $ touch file File
    $ hg add --config ui.portablefilenames=abort File
    abort: possible case-folding collision for File
    $ hg add File
    warning: possible case-folding collision for File

#!/usr/bin/env python
#
# mercurial - scalable distributed SCM
#
# Copyright 2005-2007 Matt Mackall <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

import os
import sys

libdir = '@LIBDIR@'

if libdir != '@' 'LIBDIR' '@':
    if not os.path.isabs(libdir):
        libdir = os.path.join(os.path.dirname(os.path.realpath(__file__)),
                              libdir)
        libdir = os.path.abspath(libdir)
    sys.path.insert(0, libdir)

# enable importing on demand to reduce startup time
try:
    from mercurial import demandimport; demandimport.enable()
except ImportError:
    import sys
    sys.stderr.write("abort: couldn't find mercurial libraries in [%s]\n" %
                     ' '.join(sys.path))
    sys.stderr.write("(check your install and PYTHONPATH)\n")
    sys.exit(-1)

import mercurial.util
import mercurial.dispatch

for fp in (sys.stdin, sys.stdout, sys.stderr):
    mercurial.util.set_binary(fp)

mercurial.dispatch.run()