tree b2b47df52f8a974a46d4301a58adf478d6513174
parent cfe3917c85f38c3367de7b6f5838ecaf6d1e148d
author brian m. carlson <sandals@crustytoothpaste.net> 1582402658 +0000
committer Junio C Hamano <gitster@pobox.com> 1582565607 -0800

builtin/init-db: allow specifying hash algorithm on command line

Allow the user to specify the hash algorithm on the command line by
using the --object-format option to git init.  Validate that the user is
not attempting to reinitialize a repository with a different hash
algorithm.  Ensure that if we are writing a non-SHA-1 repository that we
set the repository version to 1 and write the objectFormat extension.

Restrict this option to work only when ENABLE_SHA256 is set until the
codebase is in a situation to fully support this.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>