merge script: refuse to merge during merge

Check MERGE_HEAD and bail out if it exists.  Based on v1.6.3.3~3^2
(refuse to merge during a merge, 2009-06-01).  Without this change,
the scripted merge does not pass t3030.

Cc: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Nieder 2010-08-17 02:03:58 -05:00 committed by Junio C Hamano
parent 64048d670b
commit 6239af1c6c

View file

@ -27,6 +27,9 @@ cd_to_toplevel
test -z "$(git ls-files -u)" ||
die "Merge is not possible because you have unmerged files."
! test -e "$GIT_DIR/MERGE_HEAD" ||
die 'You have not concluded your merge (MERGE_HEAD exists).'
LF='
'