Re: git checkout -f: What am I missing?

[Michael J Gruber <git@drmicha.warpmail.net>]

Soham Mehta venit, vidit, dixit 14.01.2010 22:16:
> Hi,
> 
> I have a situation with git that I'm trying to understand:
> 
> Description:
> 1) GIT_DIR is set to /path/to/repo/.git
> 2) Repository is /not /a bare repo, and all files are nicely checked-out 
> in /path/to/repo/
> 3) Somebody pushes to that repo using ssh (any branch, checked-out or not)
> 4) Default post-receive hook runs (it is the only one +x) which sends 
> out an email 
> (http://repo.or.cz/w/git.git/blob/HEAD:/contrib/hooks/post-receive-email)
> 5) After it is done sending the email, I put "git checkout -f", at the 
> end in the same file, in case someone pushes to a checked-out branch
> 
> Problem:
> It runs "checkout -f" as if inside .git directory, instead of on the 
> parent. i.e. it gets all files from the parent and writes them inside 
> .git. Parent is left untouched.
> 
> Some more info:
> 0) We don't have GIT_DIR set in the environment. The hook does a 
> rev-parse to find it.
> 1) echo of $GIT_DIR right before the checkout -f line gives a "." .
> 2) It works as expected if I do this:  cd /path/to/repo && git 
> --git-dir=/path/to/repo/.git/ checkout -f
> 
> What I do know:
> 1) Pushing to a checked-out branch is not a git best-practice, and some 
> git behavior is undefined in that case. We already have plans to go away 
> from that.
> 2) Git tends to like full path names instead of relative ones
> 
> Can someone help me understand this behavior?

Does the thread
http://permalink.gmane.org/gmane.comp.version-control.git/136267
help by any chance?
You've found the solution, "cd .. && unset GIT_DIR" does it.

Michael