[RFC PATCH 10/13] fetch-pack: move --keep=* option filling to a function

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

Move the populating of the --keep=* option argument to "index-pack" to
a static function, a subsequent commit will make use of it in another
function.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 fetch-pack.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/fetch-pack.c b/fetch-pack.c
index b0b21cc969..ef07b45072 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -826,6 +826,16 @@ static void parse_gitmodules_oids(int fd, struct oidset *gitmodules_oids)
 	} while (1);
 }
 
+static void add_index_pack_keep_option(struct strvec *args)
+{
+	char hostname[HOST_NAME_MAX + 1];
+
+	if (xgethostname(hostname, sizeof(hostname)))
+		xsnprintf(hostname, sizeof(hostname), "localhost");
+	strvec_pushf(args, "--keep=fetch-pack %"PRIuMAX " on %s",
+		     (uintmax_t)getpid(), hostname);
+}
+
 /*
  * If packfile URIs were provided, pass a non-NULL pointer to index_pack_args.
  * The strings to pass as the --index-pack-arg arguments to http-fetch will be
@@ -895,14 +905,8 @@ static int get_pack(struct fetch_pack_args *args,
 			strvec_push(&cmd.args, "-v");
 		if (args->use_thin_pack)
 			strvec_push(&cmd.args, "--fix-thin");
-		if ((do_keep || index_pack_args) && (args->lock_pack || unpack_limit)) {
-			char hostname[HOST_NAME_MAX + 1];
-			if (xgethostname(hostname, sizeof(hostname)))
-				xsnprintf(hostname, sizeof(hostname), "localhost");
-			strvec_pushf(&cmd.args,
-				     "--keep=fetch-pack %"PRIuMAX " on %s",
-				     (uintmax_t)getpid(), hostname);
-		}
+		if ((do_keep || index_pack_args) && (args->lock_pack || unpack_limit))
+			add_index_pack_keep_option(&cmd.args);
 		if (!index_pack_args && args->check_self_contained_and_connected)
 			strvec_push(&cmd.args, "--check-self-contained-and-connected");
 		else
-- 
2.33.0.rc0.646.g585563e77f