blob: 77e93121bf8c19714b19097b4739b206230677cb [file] [log] [blame]
#!/bin/sh
#
# Copyright (c) 2005 Linus Torvalds
# Copyright (c) 2005 Junio C Hamano
#
# Resolve two trees, using enhanced multi-base read-tree.
. git-sh-setup
# Abort if index does not match HEAD
if ! git diff-index --quiet --cached HEAD --
then
gettextln "Error: Your local changes to the following files would be overwritten by merge"
git diff-index --cached --name-only HEAD -- | sed -e 's/^/ /'
exit 2
fi
# The first parameters up to -- are merge bases; the rest are heads.
bases= head= remotes= sep_seen=
for arg
do
case ",$sep_seen,$head,$arg," in
*,--,)
sep_seen=yes
;;
,yes,,*)
head=$arg
;;
,yes,*)
remotes="$remotes$arg "
;;
*)
bases="$bases$arg "
;;
esac
done
# Give up if we are given two or more remotes -- not handling octopus.
case "$remotes" in
?*' '?*)
exit 2 ;;
esac
# Give up if this is a baseless merge.
if test '' = "$bases"
then
exit 2
fi
git update-index -q --refresh
git read-tree -u -m --aggressive $bases $head $remotes || exit 2
echo "Trying simple merge."
if result_tree=$(git write-tree 2>/dev/null)
then
exit 0
else
echo "Simple merge failed, trying Automatic merge."
if git merge-index -o git-merge-one-file -a
then
exit 0
else
exit 1
fi
fi