1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
# Copyright (C) 2009, 2010 Roman Zimbelmann <romanz@lavabit.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from os import symlink, sep
from os.path import dirname, join
def relative_symlink(src, dst):
common_base = get_common_base(src, dst)
symlink(get_relative_source_file(src, dst, common_base), dst)
def get_relative_source_file(src, dst, common_base=None):
if common_base is None:
common_base = get_common_base(src, dst)
return '../' * dst.count('/', len(common_base)) + src[len(common_base):]
def get_common_base(src, dst):
if not src or not dst:
return '/'
i = 0
while True:
new_i = src.find(sep, i + 1)
if new_i == -1:
break
if not dst.startswith(src[:new_i + 1]):
break
i = new_i
return src[:i + 1]
|