Re: Multiple working trees with GIT ?

On Thu, Jan 24, 2008 at 11:04:42AM +0000, Johannes Schindelin wrote:

Hi,

On Thu, 24 Jan 2008, Julian Phillips wrote:

quoted

You might want to have a look at the git-new-workdir script in contrib, 
it does basically the same thing.  It's been there for about 10 months 
now. It was based on an email from Junio:

http://article.gmane.org/gmane.comp.version-control.git/41513/

FWIW I have a patch to do something like that in "git branch" itself.

quoted

However, there are some caveats about using this approach, basically 
about the fact that there is nothing stopping you from updating refs 
that are currently checked out in another directory and causing yourself 
all sorts of pain ... the topic has cropped up a couple of times on the 
list since the script was added.

I agree; maybe we should have a telltale file 
"refs/heads/<bla>.checkedout" which is heeded by "git checkout" and "git 
branch -d/-D", as well as update_ref() (should only update that ref when 
it HEAD points to it)?

Why not generalize this into HEAD.$branch (thus limiting to one checkout
per branch) or HEAD.$checkoutdir ?

Best regards,
Willy