[PATCH/RFC 15/20] rebase: factor out call to pre-rebase hook

@@ -110,18 +110,6 @@ commit_message () {
 	git cat-file commit "$1" | sed "1,/^$/d"
 }
 
-run_pre_rebase_hook () {
-	if test -z "$OK_TO_SKIP_PRE_REBASE" &&
-	   test -x "$GIT_DIR/hooks/pre-rebase"
-	then
-		"$GIT_DIR/hooks/pre-rebase" ${1+"$@"} || {
-			echo >&2 "The pre-rebase hook refused to rebase."
-			exit 1
-		}
-	fi
-}
-
-
 ORIG_REFLOG_ACTION="$GIT_REFLOG_ACTION"
 
 comment_for_reflog () {

@@ -755,8 +743,6 @@ test -n "$strategy" && strategy="-s $strategy"
 git var GIT_COMMITTER_IDENT >/dev/null ||
 	die "You need to set your committer info first"
 
-run_pre_rebase_hook "$upstream_arg" "$@"
-
 comment_for_reflog start
 
 if test ! -z "$switch_to"

@@ -180,9 +180,8 @@ run_interactive_rebase () {
 		export GIT_EDITOR
 	fi
 	export onto autosquash strategy strategy_opts verbose rebase_root \
-	force_rebase action preserve_merges OK_TO_SKIP_PRE_REBASE upstream \
-	upstream_arg switch_to head_name
-	exec git-rebase--interactive "$@"
+	force_rebase action preserve_merges upstream switch_to head_name
+	exec git-rebase--interactive
 }
 
 run_pre_rebase_hook () {

@@ -497,15 +496,15 @@ orig_head=$branch
 
 require_clean_work_tree "rebase" "Please commit or stash them."
 
-test -n "$interactive_rebase" && run_interactive_rebase "$@"
-
 # Now we are rebasing commits $upstream..$branch (or with --root,
 # everything leading up to $branch) on top of $onto
 
 # Check if we are already based on $onto with linear history,
-# but this should be done only when upstream and onto are the same.
+# but this should be done only when upstream and onto are the same
+# and if this is not an interactive rebase.
 mb=$(git merge-base "$onto" "$branch")
-if test "$upstream" = "$onto" && test "$mb" = "$onto" &&
+if test -z "$interactive_rebase" && test "$upstream" = "$onto" &&
+	test "$mb" = "$onto" &&
 	# linear history?
 	! (git rev-list --parents "$onto".."$branch" | sane_grep " .* ") > /dev/null
 then

@@ -523,6 +522,8 @@ fi
 # If a hook exists, give it a chance to interrupt
 run_pre_rebase_hook "$upstream_arg" "$@"
 
+test -n "$interactive_rebase" && run_interactive_rebase
+
 # Detach HEAD and reset the tree
 say "First, rewinding head to replay your work on top of it..."
 git checkout -q "$onto^0" || die "could not detach HEAD"