From 58b75bd6db45a5108af41b764d617d677f26a6ca Mon Sep 17 00:00:00 2001
From: Stefan Beller <sbeller@google.com>
Date: Fri, 26 May 2017 12:10:10 -0700
Subject: submodule recursing: do not write a config variable twice

The command line option for '--recurse-submodules' is implemented
using an OPTION_CALLBACK, which takes both the callback (that sets
the file static global variable) as well as passes the same file
static global variable to the option parsing machinery to assign it.
This is fixed in this commit by passing NULL as the variable. The
callback sets it instead

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/checkout.c b/builtin/checkout.c
index 6c3d2e4..da5c9dc 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -1182,7 +1182,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
 				N_("second guess 'git checkout <no-such-branch>'")),
 		OPT_BOOL(0, "ignore-other-worktrees", &opts.ignore_other_worktrees,
 			 N_("do not check if another worktree is holding the given ref")),
-		{ OPTION_CALLBACK, 0, "recurse-submodules", &recurse_submodules,
+		{ OPTION_CALLBACK, 0, "recurse-submodules", NULL,
 			    "checkout", "control recursive updating of submodules",
 			    PARSE_OPT_OPTARG, option_parse_recurse_submodules },
 		OPT_BOOL(0, "progress", &opts.show_progress, N_("force progress reporting")),
diff --git a/builtin/read-tree.c b/builtin/read-tree.c
index 23e212e..2a1b8a5 100644
--- a/builtin/read-tree.c
+++ b/builtin/read-tree.c
@@ -157,7 +157,7 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
 			 N_("skip applying sparse checkout filter")),
 		OPT_BOOL(0, "debug-unpack", &opts.debug_unpack,
 			 N_("debug unpack-trees")),
-		{ OPTION_CALLBACK, 0, "recurse-submodules", &recurse_submodules,
+		{ OPTION_CALLBACK, 0, "recurse-submodules", NULL,
 			    "checkout", "control recursive updating of submodules",
 			    PARSE_OPT_OPTARG, option_parse_recurse_submodules },
 		OPT_END()
diff --git a/builtin/reset.c b/builtin/reset.c
index 5ce27fc..1e5f85b 100644
--- a/builtin/reset.c
+++ b/builtin/reset.c
@@ -304,7 +304,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
 				N_("reset HEAD, index and working tree"), MERGE),
 		OPT_SET_INT(0, "keep", &reset_type,
 				N_("reset HEAD but keep local changes"), KEEP),
-		{ OPTION_CALLBACK, 0, "recurse-submodules", &recurse_submodules,
+		{ OPTION_CALLBACK, 0, "recurse-submodules", NULL,
 			    "reset", "control recursive updating of submodules",
 			    PARSE_OPT_OPTARG, option_parse_recurse_submodules },
 		OPT_BOOL('p', "patch", &patch_mode, N_("select hunks interactively")),
-- 
cgit v0.10.2-6-g49f6