[PATCH 0/3] git-gui: generic and robust worktree/gitdir support

[Giuseppe Bilotta <giuseppe.bilotta@gmail.com>]

A-hem.

<intro class="shameless plug">
I've recently restarted using (and thus working on) my Zit project, the
Git-based single-file content tracker ( http://git.oblomov.eu/zit ),
adding support for importing RCS history (via my rcs-fast-export
project, http://git.oblomov.eu/rcs-fast-export ), and even managed to
run a successful rebase (which turned out to be somewhat clumsier due to
the inevitably longer command lines, but perfectly feasible). My next
step was looking for ways to support the graphical utilities, in
particular git-gui and gitk
</intro>

It turns out that while gitk works pretty fine out of the box, git-gui
makes a lot of guesses and assumptions about the nature and relation
between the git dir and its worktree. The following three patches try to
remedy the problems I came across with some simple testing.

Giuseppe Bilotta (3):
  git-gui: properly check for a bare repo
  git-gui: use the actual worktree
  git-gui: define correct GIT_DIR for gitk