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[[!comment format=mdwn
username="praet"
ip="81.240.159.215"
subject="Use variable symlinks, relative to the repo's root ?"
date="2011-03-10T16:50:28Z"
content="""
It all boils down to the fact that the path to a relative symlink's target is determined relative to the symlink itself.
Now, if we define the symlink's target relative to the git repo's root (eg. using the $GIT_DIR environment variable, which can be a relative or absolute path itself), this unfortunately results in an absolute symlink, which would -for obvious reasons- only be usable locally:
user@host:~$ mkdir -p tmp/{.git/annex,somefolder}
user@host:~$ export GIT_DIR=~/tmp
user@host:~$ touch $GIT_DIR/.git/annex/realfile
user@host:~$ ln -s $GIT_DIR/.git/annex/realfile $GIT_DIR/somefolder/file
user@host:~$ ls -al $GIT_DIR/somefolder/
total 12
drwxr-x--- 2 user group 4096 2011-03-10 16:54 .
drwxr-x--- 4 user group 4096 2011-03-10 16:53 ..
lrwxrwxrwx 1 user group 33 2011-03-10 16:54 file -> /home/user/tmp/.git/annex/realfile
user@host:~$
So, what we need is the ability to record the actual variable name (instead of it's value) in our symlinks.
It *is* possible, using [variable/variant symlinks](http://en.wikipedia.org/wiki/Symbolic_link#Variable_symbolic_links), yet I'm unsure as to whether or not this is available on Linux systems, and even if it is, it would introduce compatibility issues in multi-OS environments.
Thoughts on this?
"""]]
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