builtin/submodule--helper: factor out submodule updating

diff --git a/git-submodule.sh b/git-submodule.sh
index 5f9d9f6ea3713be458c006501c503d8d660e9ddf..8caaf274e25296e18218f55273cefda5bd7777fd 100755 (executable)
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -531,9 +531,9 @@ cmd_update()
                "$@" || echo "#unmatched" $?
        } | {
        err=
-       while read -r mode sha1 stage just_cloned sm_path
+       while read -r quickabort sha1 just_cloned sm_path
        do
-               die_if_unmatched "$mode" "$sha1"
+               die_if_unmatched "$quickabort" "$sha1"
 
                name=$(git submodule--helper name "$sm_path") || exit
                if ! test -z "$update"
@@ -577,6 +577,11 @@ cmd_update()
                        die "$(eval_gettext "Unable to find current \${remote_name}/\${branch} revision in submodule path '\$sm_path'")"
                fi
 
+               if ! $(git config -f "$(git rev-parse --git-common-dir)/modules/$name/config" core.worktree) 2>/dev/null
+               then
+                       git submodule--helper connect-gitdir-workingtree "$name" "$sm_path"
+               fi
+
                if test "$subsha1" != "$sha1" || test -n "$force"
                then
                        subforce=$force
@@ -627,7 +632,7 @@ cmd_update()
                                must_die_on_failure=yes
                                ;;
                        *)
-                               die "$(eval_gettext "Invalid update mode '$update_module' for submodule '$name'")"
+                               die "$(eval_gettext "Invalid update mode '$update_module' for submodule path '$path'")"
                        esac
 
                        if (sanitize_submodule_env; cd "$sm_path" && $command "$sha1")