Re: Error: unable to unlink ... when using "git gc"

On 2009-01-06, Jeff King [off-list ref] wrote:

If you are going to have multiple users sharing a repository, generally
they should be in the same group and the core.sharedrepository config
option should be set (see "git help config", or the "shared" option to
git-init).

I've never used that personally, though. I have always just used POSIX
ACLs, with a default ACL on each directory giving access to everyone.
E.g. (off the top of my head):

  for user in user1 user2 user3; do
    setfacl -R -m u:$user:rwX -m d:u:$user:rwX /path/to/repo
  done

If you're not worried about the finer-grained access control
that acl(5) gives you, just do what "git init
--shared=group" does:

    git config core.sharedrepository 1 # as mentioned above
    chmod g+ws .git

Now set the group to something (I use "gitpushers" ;-)

    chgrp -R gitpushers .git

amd make sure all your users are part of that group.

Works fine for small teams...