diff options
Diffstat (limited to 'ranger/ext/relative_symlink.py')
| -rw-r--r-- | ranger/ext/relative_symlink.py | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/ranger/ext/relative_symlink.py b/ranger/ext/relative_symlink.py new file mode 100644 index 00000000..bba00e39 --- /dev/null +++ b/ranger/ext/relative_symlink.py @@ -0,0 +1,39 @@ +# 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] |