submodule: don't rely on overlayed config when setting diffopts

Don't rely on overlaying the repository's config on top of the submodule-config, instead query the repository's config directory for the ignore field. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Brandon Williams committed Aug 3, 2017 at 11:19 UTC fdfa9e97dbffdc6868a1a046456c0ad67dda9e29
1 file changed +10 -2
submodule.c
+10 -2
@@ -165,8 +165,16 @@ void set_diffopt_flags_from_submodule_config(struct diff_options *diffopt,
165 {
166 const struct submodule *submodule = submodule_from_path(&null_oid, path);
167 if (submodule) {
168 - if (submodule->ignore)
169 - handle_ignore_submodules_arg(diffopt, submodule->ignore);
168 + const char *ignore;
169 + char *key;
170 +
171 + key = xstrfmt("submodule.%s.ignore", submodule->name);
172 + if (repo_config_get_string_const(the_repository, key, &ignore))
173 + ignore = submodule->ignore;
174 + free(key);
175 +
176 + if (ignore)
177 + handle_ignore_submodules_arg(diffopt, ignore);
178 else if (is_gitmodules_unmerged(&the_index))
179 DIFF_OPT_SET(diffopt, IGNORE_SUBMODULES);
180 }