Port v1.6.6-rc0~62^2 (Teach 'git merge' and 'git pull' the option
--ff-only, 2009-10-29) to the old merge script.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
---
contrib/examples/git-merge.sh | 17 +++++++++++++++--
1 files changed, 15 insertions(+), 2 deletions(-)
diff --git a/contrib/examples/git-merge.sh b/contrib/examples/git-merge.sh
index 410fa3c..dfd6e17 100755
--- a/contrib/examples/git-merge.sh
+++ b/contrib/examples/git-merge.sh
@@ -15,6 +15,7 @@ log add list of one-line log to merge commit message
squash create a single commit instead of doing a merge
commit perform a commit if the merge succeeds (default)
ff allow fast-forward (default)
+ff-only abort if fast-forward is not possible
s,strategy= merge strategy to use
X= option for selected merge strategy
m,message= message to be used for the merge commit (if any)
@@ -45,6 +46,7 @@ use_strategies=
xopt=
allow_fast_forward=t
+fast_forward_only=
allow_trivial_merge=t
squash= no_commit= log_arg=
@@ -189,7 +191,13 @@ parse_config () {
--no-ff)
test "$squash" != t ||
die "You cannot combine --squash with --no-ff."
+ test "$fast_forward_only" != t ||
+ die "You cannot combine --ff-only with --no-ff."
allow_fast_forward=f ;;
+ --ff-only)
+ test "$allow_fast_forward" != f ||
+ die "You cannot combine --ff-only with --no-ff."
+ fast_forward_only=t ;;
-s|--strategy)
shift
case " $all_strategies " in
@@ -412,8 +420,8 @@ t,1,"$head",*)
# We are not doing octopus, not fast-forward, and have only
# one common.
git update-index --refresh 2>/dev/null
- case "$allow_trivial_merge" in
- t)
+ case "$allow_trivial_merge,$fast_forward_only" in
+ t,)
# See if it is really trivial.
git var GIT_COMMITTER_IDENT >/dev/null || exit
echo "Trying really trivial in-index merge..."
@@ -452,6 +460,11 @@ t,1,"$head",*)
;;
esac
+if test "$fast_forward_only" = t
+then
+ die "Not possible to fast-forward, aborting."
+fi
+
# We are going to make a new commit.
git var GIT_COMMITTER_IDENT >/dev/null || exit
--
1.7.2.1.544.ga752d.dirty
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