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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# GuessIt - A library for guessing information from filenames
# Copyright (c) 2011 Nicolas Wack <wackou@gmail.com>
#
# GuessIt is free software; you can redistribute it and/or modify it under
# the terms of the Lesser GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# GuessIt is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# Lesser GNU General Public License for more details.
#
# You should have received a copy of the Lesser GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import os.path
def split_path(path):
r"""Splits the given path into the list of folders and the filename (or the
last folder if you gave it a folder path.
If the given path was an absolute path, the first element will always be:
- the '/' root folder on Unix systems
- the drive letter on Windows systems (eg: r'C:\')
>>> split_path('/usr/bin/smewt')
['/', 'usr', 'bin', 'smewt']
>>> split_path('relative_path/to/my_folder/')
['relative_path', 'to', 'my_folder']
>>> split_path(r'C:\Program Files\Smewt\smewt.exe')
['C:\\', 'Program Files', 'Smewt', 'smewt.exe']
>>> split_path(r'Documents and Settings\User\config\\')
['Documents and Settings', 'User', 'config']
"""
result = []
while True:
head, tail = os.path.split(path)
# on Unix systems, the root folder is '/'
if head == '/' and tail == '':
return [ '/' ] + result
# on Windows, the root folder is a drive letter (eg: 'C:\')
if len(head) == 3 and head[1:] == ':\\' and tail == '':
return [ head ] + result
if head == '' and tail == '':
return result
# we just split a directory ending with '/', so tail is empty
if not tail:
path = head
continue
result = [ tail ] + result
path = head
def split_path_components(filename):
"""Returns the filename split into [ dir*, basename, ext ]."""
result = split_path(filename)
basename = result.pop(-1)
return result + list(os.path.splitext(basename))
def file_in_same_dir(ref_file, desired_file):
"""Return the path for a file in the same dir as a given reference file.
>>> file_in_same_dir('~/smewt/smewt.db', 'smewt.settings')
'~/smewt/smewt.settings'
"""
return os.path.join(*(split_path(ref_file)[:-1] + [ desired_file ]))