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Viewing changes to fai/arch/pathname.py

  • Committer: Robert Collins
  • Date: 2005-09-13 12:39:26 UTC
  • mto: (147.2.6) (364.1.3 bzrtools)
  • mto: This revision was merged to the branch mainline in revision 324.
  • Revision ID: robertc@robertcollins.net-20050913123926-b72242bdacc1ae52
create the output directory

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fai/arch/pathname.py
 
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# arch-tag: 75709428-970d-4bba-ac1c-7e1e7428345f
 
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# Copyright (C) 2004  David Allouche <david@allouche.net>
 
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#                     Canonical Ltd.
 
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#
 
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#    This program is free software; you can redistribute it and/or modify
 
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#    it under the terms of the GNU General Public License as published by
 
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#    the Free Software Foundation; either version 2 of the License, or
 
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#    (at your option) any later version.
 
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#
 
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#    This program is distributed in the hope that it will be useful,
 
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#    but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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#    GNU General Public License for more details.
 
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#
 
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#    You should have received a copy of the GNU General Public License
 
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#    along with this program; if not, write to the Free Software
 
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#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
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"""File name manipulation."""
 
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__all__ = ['PathName', 'DirName', 'FileName']
 
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import os
 
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class PathName(str):
 
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    """String with extra methods for filename operations."""
 
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    def __new__(cls, path='.'):
 
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        return str.__new__(cls, os.path.normpath(path))
 
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    def __div__(self, path):
 
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        if isinstance(path, (DirName, FileName)):
 
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            ctor = path.__class__
 
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        else:
 
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            ctor = PathName
 
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        return ctor(os.path.join(self, path))
 
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    def __repr__(self):
 
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        return '%s(%s)' % (type(self).__name__, str.__repr__(self))
 
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    def abspath(self):
 
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        return self.__class__(os.path.abspath(self))
 
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    def dirname(self):
 
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        return DirName(os.path.dirname(self))
 
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    def basename(self):
 
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        return self.__class__(os.path.basename(self))
 
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    def realpath(self):
 
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        if 'realpath' in dir(os.path):
 
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            return self.__class__(os.path.realpath(self))
 
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        else:
 
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            return self.abspath()
 
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    def splitname(self):
 
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        dir_, base = os.path.split(self)
 
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        return DirName(dir_), self.__class__(base)
 
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class DirName(PathName):
 
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    """PathName, further characterized as a directory name."""
 
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class FileName(PathName):
 
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    """PathName further characterized as a file name."""