t9300: factor out portable "head -c" replacement

diff --git a/git-rebase.sh b/git-rebase.sh
index 1757404bc271ba4e1a08eb30fe27542c35e3008e..44ede367ae0e24ad80ba91608d26ad3bd4bbd8da 100755 (executable)
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -14,7 +14,7 @@ git-rebase --continue | --abort | --skip | --edit-todo
  Available options are
 v,verbose!         display a diffstat of what changed upstream
 q,quiet!           be quiet. implies --no-stat
-autostash!         automatically stash/stash pop before and after
+autostash          automatically stash/stash pop before and after
 fork-point         use 'merge-base --fork-point' to refine upstream
 onto=!             rebase onto given branch instead of upstream
 p,preserve-merges! try to recreate merges instead of ignoring them
@@ -87,7 +87,10 @@ preserve_merges=
 autosquash=
 keep_empty=
 test "$(git config --bool rebase.autosquash)" = "true" && autosquash=t
-gpg_sign_opt=
+case "$(git config --bool commit.gpgsign)" in
+true)  gpg_sign_opt=-S ;;
+*)     gpg_sign_opt= ;;
+esac
 
 read_basic_state () {
        test -f "$state_dir/head-name" &&
@@ -176,7 +179,7 @@ You can run "git stash pop" or "git stash drop" at any time.
 
 finish_rebase () {
        apply_autostash &&
-       git gc --auto &&
+       { git gc --auto || true; } &&
        rm -rf "$state_dir"
 }
 
@@ -248,6 +251,7 @@ do
                ;;
        --exec=*)
                cmd="${cmd}exec ${1#--exec=}${LF}"
+               test -z "$interactive_rebase" && interactive_rebase=implied
                ;;
        --interactive)
                interactive_rebase=explicit
@@ -292,6 +296,9 @@ do
        --autostash)
                autostash=true
                ;;
+       --no-autostash)
+               autostash=false
+               ;;
        --verbose)
                verbose=t
                diffstat=t
@@ -345,12 +352,6 @@ do
 done
 test $# -gt 2 && usage
 
-if test -n "$cmd" &&
-   test "$interactive_rebase" != explicit
-then
-       die "$(gettext "The --exec option must be used with the --interactive option")"
-fi
-
 if test -n "$action"
 then
        test -z "$in_progress" && die "$(gettext "No rebase in progress?")"