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[PATCH 2/3] submodule: ensure core.worktree is set after update




Signed-off-by: Stefan Beller <sbeller@xxxxxxxxxx>
---
 builtin/submodule--helper.c | 24 ++++++++++++++++++++++++
 git-submodule.sh            |  5 +++++
 2 files changed, 29 insertions(+)

diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index bd250ca2164..dffc55ed8ee 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -1860,6 +1860,29 @@ static int check_name(int argc, const char **argv, const char *prefix)
 	return 0;
 }
 
+static int connect_gitdir_workingtree(int argc, const char **argv, const char *prefix)
+{
+	struct strbuf sb = STRBUF_INIT;
+	const char *name, *path;
+	char *sm_gitdir;
+
+	if (argc != 3)
+		BUG("submodule--helper connect-gitdir-workingtree <name> <path>");
+
+	name = argv[1];
+	path = argv[2];
+
+	strbuf_addf(&sb, "%s/modules/%s", get_git_dir(), name);
+	sm_gitdir = absolute_pathdup(sb.buf);
+
+	connect_work_tree_and_git_dir(path, sm_gitdir, 0);
+
+	strbuf_release(&sb);
+	free(sm_gitdir);
+
+	return 0;
+}
+
 #define SUPPORT_SUPER_PREFIX (1<<0)
 
 struct cmd_struct {
@@ -1873,6 +1896,7 @@ static struct cmd_struct commands[] = {
 	{"name", module_name, 0},
 	{"clone", module_clone, 0},
 	{"update-clone", update_clone, 0},
+	{"connect-gitdir-workingtree", connect_gitdir_workingtree, 0},
 	{"relative-path", resolve_relative_path, 0},
 	{"resolve-relative-url", resolve_relative_url, 0},
 	{"resolve-relative-url-test", resolve_relative_url_test, 0},
diff --git a/git-submodule.sh b/git-submodule.sh
index 78073cd87d1..6596a77c5ef 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -615,6 +615,11 @@ 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
-- 
2.18.0.rc1.244.gcf134e6275-goog