submodule update: allow custom command to update submodule working tree

diff --git a/git-submodule.sh b/git-submodule.sh
index 945e296d304a1d1f108571946a6d50fbf238302f..c87515de10037a280dfed3b4751f8f60c4bcbea3 100755 (executable)
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -860,6 +860,12 @@ Maybe you want to use 'update --init'?")"
                                say_msg="$(eval_gettext "Submodule path '\$displaypath': merged in '\$sha1'")"
                                must_die_on_failure=yes
                                ;;
+                       !*)
+                               command="${update_module#!}"
+                               die_msg="$(eval_gettext "Execution of '\$command \$sha1' failed in submodule  path '\$prefix\$sm_path'")"
+                               say_msg="$(eval_gettext "Submodule path '\$prefix\$sm_path': '\$command \$sha1'")"
+                               must_die_on_failure=yes
+                               ;;
                        *)
                                command="git checkout $subforce -q"
                                die_msg="$(eval_gettext "Unable to checkout '\$sha1' in submodule path '\$displaypath'")"