Handle really trivial case inside git-merge.
Using Linus' --trivial option, this handles really trivial case
inside git-merge itself, without using any strategy modules.
A 'really trivial case' is:
- we are merging one branch into the current branch;
- there is only one merge base between the branches;
- there is no file-level merge required.
Signed-off-by: Junio C Hamano <junkio@cox.net>
diff --git a/git-merge.sh b/git-merge.sh
index 29e86c6..d12a2a9 100755
--- a/git-merge.sh
+++ b/git-merge.sh
@@ -123,10 +123,30 @@
dropsave
exit 0
;;
-1,*)
+1,?*"$LF"?*)
# We are not doing octopus and not fast forward. Need a
# real merge.
;;
+1,*)
+ # We are not doing octopus, not fast forward, and have only
+ # one common. See if it is really trivial.
+ echo "Trying really trivial in-index merge..."
+ git-update-index --refresh 2>/dev/null
+ if git-read-tree --trivial -m -u $common $head "$1" &&
+ result_tree=$(git-write-tree)
+ then
+ echo "Wonderful."
+ result_commit=$(
+ echo "$merge_msg" |
+ git-commit-tree $result_tree -p HEAD -p "$1"
+ ) || exit
+ git-update-ref HEAD $result_commit $head
+ summary $result_commit
+ dropsave
+ exit 0
+ fi
+ echo "Nope."
+ ;;
*)
# An octopus. If we can reach all the remote we are up to date.
up_to_date=t
