[RFC PATCH 0/4] git-gui: support SHA-256 repositories

["Carlo Marcelo Arenas Belón" <carenas@gmail.com>]

While poking a SHA-256 hash repository, was surprised to find gitk
would fail with a fatal error when called, hence this series.

Sending as an RFC, since I am not a git-gui or gitk user, and so
while this fixes the original issue and allows me to call gitk to
see the branch merge history (which is usually as much as I do with
it), it is likey missing some changes, as most of them where found
by lightly poking at all of the gui menus (except for remote or tool)

It could also be reordered to reduce unnecessary churn and of course
also needs the gitk change[1] that was sent independently, and better
commit messages.

[1] https://lore.kernel.org/git/20211011114723.204-1-carenas@gmail.com/

Carlo Marcelo Arenas Belón (4):
  blame: prefer null_sha1 over nullid and retire later
  rename all *_sha1 variables and make null_oid hash aware
  expand regexp matching an oid to be hash agnostic
  track oid_size to allow for checks that are hash agnostic

 git-gui.sh                   | 30 ++++++++++++++++--------------
 lib/blame.tcl                | 18 +++++++++---------
 lib/checkout_op.tcl          |  4 ++--
 lib/choose_repository.tcl    |  2 +-
 lib/commit.tcl               |  3 ++-
 lib/remote_branch_delete.tcl |  2 +-
 6 files changed, 31 insertions(+), 28 deletions(-)

-- 
2.33.0.1081.g099423f5b7