301 # what normcase does to ASCII strings

   301 # what normcase does to ASCII strings

   302 normcasespec = encoding.normcasespecs.lower

   302 normcasespec = encoding.normcasespecs.lower

   303 # fallback normcase function for non-ASCII strings

   303 # fallback normcase function for non-ASCII strings

   304 normcasefallback = normcase

   304 normcasefallback = normcase

   305 

   305 

   307 

   307 

   308     def normcase(path):

   308     def normcase(path):

   309         '''

   309         '''

   310         Normalize a filename for OS X-compatible comparison:

   310         Normalize a filename for OS X-compatible comparison:

   311         - escape-encode invalid characters

   311         - escape-encode invalid characters

   352         # Decompose then lowercase (HFS+ technote specifies lower)

   352         # Decompose then lowercase (HFS+ technote specifies lower)

   353         enc = unicodedata.normalize('NFD', u).lower().encode('utf-8')

   353         enc = unicodedata.normalize('NFD', u).lower().encode('utf-8')

   354         # drop HFS+ ignored characters

   354         # drop HFS+ ignored characters

   355         return encoding.hfsignoreclean(enc)

   355         return encoding.hfsignoreclean(enc)

   356 

   356 

   358     # workaround for cygwin, in which mount point part of path is

   358     # workaround for cygwin, in which mount point part of path is

   359     # treated as case sensitive, even though underlying NTFS is case

   359     # treated as case sensitive, even though underlying NTFS is case

   360     # insensitive.

   360     # insensitive.

   361 

   361 

   362     # default mount points

   362     # default mount points

   445 def findexe(command):

   445 def findexe(command):

   446     '''Find executable for command searching like which does.

   446     '''Find executable for command searching like which does.

   447     If command is a basename then PATH is searched for command.

   447     If command is a basename then PATH is searched for command.

   448     PATH isn't searched if command is an absolute or relative path.

   448     PATH isn't searched if command is an absolute or relative path.

   449     If command isn't found None is returned.'''

   449     If command isn't found None is returned.'''

   451         return command

   451         return command

   452 

   452 

   453     def findexisting(executable):

   453     def findexisting(executable):

   454         'Will return executable if existing file'

   454         'Will return executable if existing file'

   455         if os.path.isfile(executable) and os.access(executable, os.X_OK):

   455         if os.path.isfile(executable) and os.access(executable, os.X_OK):

   457         return None

   457         return None

   458 

   458 

   459     if pycompat.ossep in command:

   459     if pycompat.ossep in command:

   460         return findexisting(command)

   460         return findexisting(command)

   461 

   461 

   463         return findexisting(os.path.join('/bin', command))

   463         return findexisting(os.path.join('/bin', command))

   464 

   464 

   465     for path in encoding.environ.get('PATH', '').split(pycompat.ospathsep):

   465     for path in encoding.environ.get('PATH', '').split(pycompat.ospathsep):

   466         executable = findexisting(os.path.join(path, command))

   466         executable = findexisting(os.path.join(path, command))

   467         if executable is not None:

   467         if executable is not None: