[RFC PATCHv2 06/17] update submodules: add a config option to determine if submodules are updated

[Stefan Beller <sbeller@google.com>]

In later patches we introduce the options and flag for commands
that modify the working directory, e.g. git-checkout.

Have a central place to store such settings whether we want to update
a submodule.

Signed-off-by: Stefan Beller <sbeller@google.com>
---
 submodule.c | 6 ++++++
 submodule.h | 1 +
 2 files changed, 7 insertions(+)

diff --git a/submodule.c b/submodule.c
index c29153e9ff..1ba398ba3b 100644
--- a/submodule.c
+++ b/submodule.c
@@ -16,6 +16,7 @@
 #include "quote.h"
 
 static int config_fetch_recurse_submodules = RECURSE_SUBMODULES_ON_DEMAND;
+static int config_update_recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
 static int parallel_jobs = 1;
 static struct string_list changed_submodule_paths = STRING_LIST_INIT_NODUP;
 static int initialized_fetch_ref_tips;
@@ -510,6 +511,11 @@ void set_config_fetch_recurse_submodules(int value)
 	config_fetch_recurse_submodules = value;
 }
 
+void set_config_update_recurse_submodules(int value)
+{
+	config_update_recurse_submodules = value;
+}
+
 static int has_remote(const char *refname, const struct object_id *oid,
 		      int flags, void *cb_data)
 {
diff --git a/submodule.h b/submodule.h
index a9eabcc3d0..21236b095c 100644
--- a/submodule.h
+++ b/submodule.h
@@ -53,6 +53,7 @@ extern void show_submodule_inline_diff(FILE *f, const char *path,
 		const char *del, const char *add, const char *reset,
 		const struct diff_options *opt);
 extern void set_config_fetch_recurse_submodules(int value);
+extern void set_config_update_recurse_submodules(int value);
 extern void check_for_new_submodule_commits(unsigned char new_sha1[20]);
 extern int fetch_populated_submodules(const struct argv_array *options,
 			       const char *prefix, int command_line_option,
-- 
2.11.0.rc2.28.g2673dad