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[PATCH 8/9] submodule.c: fetch in submodules git directory instead of in worktree




Keep the properties introduced in 10f5c52656 (submodule: avoid
auto-discovery in prepare_submodule_repo_env(), 2016-09-01), by fixating
the git directory of the submodule.

Signed-off-by: Stefan Beller <sbeller@xxxxxxxxxx>
---
 submodule.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/submodule.c b/submodule.c
index 77ace5e784..d1b6646f42 100644
--- a/submodule.c
+++ b/submodule.c
@@ -494,6 +494,12 @@ void prepare_submodule_repo_env(struct argv_array *out)
 			 DEFAULT_GIT_DIR_ENVIRONMENT);
 }
 
+static void prepare_submodule_repo_env_in_gitdir(struct argv_array *out)
+{
+	prepare_submodule_repo_env_no_git_dir(out);
+	argv_array_pushf(out, "%s=.", GIT_DIR_ENVIRONMENT);
+}
+
 /* Helper function to display the submodule header line prior to the full
  * summary output. If it can locate the submodule objects directory it will
  * attempt to lookup both the left and right commits and put them into the
@@ -1327,8 +1333,8 @@ static int get_next_submodule(struct child_process *cp,
 		repo = get_submodule_repo_for(spf->r, submodule);
 		if (repo) {
 			child_process_init(cp);
-			cp->dir = xstrdup(repo->worktree);
-			prepare_submodule_repo_env(&cp->env_array);
+			cp->dir = xstrdup(repo->gitdir);
+			prepare_submodule_repo_env_in_gitdir(&cp->env_array);
 			cp->git_cmd = 1;
 			if (!spf->quiet)
 				strbuf_addf(err, "Fetching submodule %s%s\n",
-- 
2.20.0.rc1.387.gf8505762e3-goog