submodule: fix NULL correctness in renamed broken submodules

diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
index 9947e6265fe7c0bc4531fd928bbf2373a0ae7552..06a7b793075d7701b5dafa69b3576d13ba7c9de6 100644 (file)
--- a/git-rebase--interactive.sh
+++ b/git-rebase--interactive.sh
@@ -81,6 +81,8 @@ rewritten_pending="$state_dir"/rewritten-pending
 # and leaves CR at the end instead.
 cr=$(printf "\015")
 
+empty_tree=$(git hash-object -t tree /dev/null)
+
 strategy_args=${strategy:+--strategy=$strategy}
 test -n "$strategy_opts" &&
 eval '
@@ -155,13 +157,19 @@ reschedule_last_action () {
 append_todo_help () {
        gettext "
 Commands:
-p, pick = use commit
-r, reword = use commit, but edit the commit message
-e, edit = use commit, but stop for amending
-s, squash = use commit, but meld into previous commit
-f, fixup = like \"squash\", but discard this commit's log message
-x, exec = run command (the rest of the line) using shell
-d, drop = remove commit
+p, pick <commit> = use commit
+r, reword <commit> = use commit, but edit the commit message
+e, edit <commit> = use commit, but stop for amending
+s, squash <commit> = use commit, but meld into previous commit
+f, fixup <commit> = like \"squash\", but discard this commit's log message
+x, exec <command> = run command (the rest of the line) using shell
+d, drop <commit> = remove commit
+l, label <label> = label current HEAD with a name
+t, reset <label> = reset HEAD to a label
+m, merge [-C <commit> | -c <commit>] <label> [# <oneline>]
+.       create a merge commit using the original merge commit's
+.       message (or the oneline, if no original merge commit was
+.       specified). Use -c <commit> to reword the commit message.
 
 These lines can be re-ordered; they are executed from top to bottom.
 " | git stripspace --comment-lines >>"$todo"
@@ -238,7 +246,7 @@ is_empty_commit() {
                die "$(eval_gettext "\$sha1: not a commit that can be picked")"
        }
        ptree=$(git rev-parse -q --verify "$1"^^{tree} 2>/dev/null) ||
-               ptree=4b825dc642cb6eb9a060e54bf8d69288fbee4904
+               ptree=$empty_tree
        test "$tree" = "$ptree"
 }
 
@@ -888,6 +896,8 @@ init_revisions_and_shortrevisions () {
        else
                revisions=$onto...$orig_head
                shortrevisions=$shorthead
+               test -z "$squash_onto" ||
+               echo "$squash_onto" >"$state_dir"/squash-onto
        fi
 }
 
@@ -942,7 +952,7 @@ EOF
        die "Could not skip unnecessary pick commands"
 
        checkout_onto
-       if test -z "$rebase_root" && test ! -d "$rewritten"
+       if test ! -d "$rewritten"
        then
                require_clean_work_tree "rebase"
                exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \
@@ -964,6 +974,8 @@ git_rebase__interactive () {
        init_revisions_and_shortrevisions
 
        git rebase--helper --make-script ${keep_empty:+--keep-empty} \
+               ${rebase_merges:+--rebase-merges} \
+               ${rebase_cousins:+--rebase-cousins} \
                $revisions ${restrict_revision+^$restrict_revision} >"$todo" ||
        die "$(gettext "Could not generate todo list")"