is_submodule_modified(): fix breakage with external GIT_INDEX_FILE
Even when the environment was given for the top-level process, checking
in the submodule work tree should use the index file associated with the
work tree of the submodule. Do not export it to the environment.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/submodule.c b/submodule.c
index ca0527f..6f7c210 100644
--- a/submodule.c
+++ b/submodule.c
@@ -126,7 +126,7 @@
"--porcelain",
NULL,
};
- char *env[3];
+ char *env[4];
struct strbuf buf = STRBUF_INIT;
strbuf_addf(&buf, "%s/.git/", path);
@@ -142,7 +142,9 @@
env[0] = strbuf_detach(&buf, NULL);
strbuf_addf(&buf, "GIT_DIR=%s/.git", path);
env[1] = strbuf_detach(&buf, NULL);
- env[2] = NULL;
+ strbuf_addf(&buf, "GIT_INDEX_FILE");
+ env[2] = strbuf_detach(&buf, NULL);
+ env[3] = NULL;
memset(&cp, 0, sizeof(cp));
cp.argv = argv;
@@ -161,6 +163,7 @@
free(env[0]);
free(env[1]);
+ free(env[2]);
strbuf_release(&buf);
return len != 0;
}
