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-rwxr-xr-xgit-rebase.sh30
1 files changed, 28 insertions, 2 deletions
diff --git a/git-rebase.sh b/git-rebase.sh
index b121f4537c..eddc02875f 100755
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -34,6 +34,8 @@ set_reflog_action rebase
require_work_tree
cd_to_toplevel
+LF='
+'
OK_TO_SKIP_PRE_REBASE=
RESOLVEMSG="
When you have resolved this problem run \"git rebase --continue\".
@@ -50,6 +52,7 @@ diffstat=$(git config --bool rebase.stat)
git_am_opt=
rebase_root=
force_rebase=
+allow_rerere_autoupdate=
continue_merge () {
test -n "$prev_head" || die "prev_head must be defined"
@@ -118,7 +121,7 @@ call_merge () {
return
;;
1)
- git rerere
+ git rerere $allow_rerere_autoupdate
die "$RESOLVEMSG"
;;
2)
@@ -349,6 +352,9 @@ do
-f|--f|--fo|--for|--forc|force|--force-r|--force-re|--force-reb|--force-reba|--force-rebas|--force-rebase)
force_rebase=t
;;
+ --rerere-autoupdate|--no-rerere-autoupdate)
+ allow_rerere_autoupdate="$1"
+ ;;
-*)
usage
;;
@@ -417,7 +423,27 @@ fi
# Make sure the branch to rebase onto is valid.
onto_name=${newbase-"$upstream_name"}
-onto=$(git rev-parse --verify "${onto_name}^0") || exit
+case "$onto_name" in
+*...*)
+ if left=${onto_name%...*} right=${onto_name#*...} &&
+ onto=$(git merge-base --all ${left:-HEAD} ${right:-HEAD})
+ then
+ case "$onto" in
+ ?*"$LF"?*)
+ die "$onto_name: there are more than one merge bases"
+ ;;
+ '')
+ die "$onto_name: there is no merge base"
+ ;;
+ esac
+ else
+ die "$onto_name: there is no merge base"
+ fi
+ ;;
+*)
+ onto=$(git rev-parse --verify "${onto_name}^0") || exit
+ ;;
+esac
# If a hook exists, give it a chance to interrupt
run_pre_rebase_hook "$upstream_arg" "$@"