--- /dev/null
+From 3caa32b73e206378ad870276cc5feb73b6cf54bb Mon Sep 17 00:00:00 2001
+From: Ian Jackson <ijackson@chiark.greenend.org.uk>
+Date: Fri, 4 Nov 2016 17:45:38 +0000
+Subject: [PATCH 2/5] check-ref-format: Refactor to make --branch code more
+ common
+
+We are going to want to permit other options with --branch.
+
+So, replace the special case with just an entry for --branch in the
+parser for ordinary options, and check for option compatibility at the
+end.
+
+No overall functional change.
+
+Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
+---
+ builtin/check-ref-format.c | 17 +++++++++++++----
+ 1 file changed, 13 insertions(+), 4 deletions(-)
+
+diff --git a/builtin/check-ref-format.c b/builtin/check-ref-format.c
+index 4d56caa..f12c19c 100644
+--- a/builtin/check-ref-format.c
++++ b/builtin/check-ref-format.c
+@@ -49,13 +49,19 @@ static int check_ref_format_branch(const char *arg)
+ }
+
+ static int normalize = 0;
++static int check_branch = 0;
+ static int flags = 0;
+
+ static int check_one_ref_format(const char *refname)
+ {
++ int got;
++
+ if (normalize)
+ refname = collapse_slashes(refname);
+- if (check_refname_format(refname, flags))
++ got = check_branch
++ ? check_ref_format_branch(refname)
++ : check_refname_format(refname, flags);
++ if (got)
+ return 1;
+ if (normalize)
+ printf("%s\n", refname);
+@@ -68,9 +74,6 @@ int cmd_check_ref_format(int argc, const char **argv, const char *prefix)
+ if (argc == 2 && !strcmp(argv[1], "-h"))
+ usage(builtin_check_ref_format_usage);
+
+- if (argc == 3 && !strcmp(argv[1], "--branch"))
+- return check_ref_format_branch(argv[2]);
+-
+ for (i = 1; i < argc && argv[i][0] == '-'; i++) {
+ if (!strcmp(argv[i], "--normalize") || !strcmp(argv[i], "--print"))
+ normalize = 1;
+@@ -80,9 +83,15 @@ int cmd_check_ref_format(int argc, const char **argv, const char *prefix)
+ flags &= ~REFNAME_ALLOW_ONELEVEL;
+ else if (!strcmp(argv[i], "--refspec-pattern"))
+ flags |= REFNAME_REFSPEC_PATTERN;
++ else if (!strcmp(argv[i], "--branch"))
++ check_branch = 1;
+ else
+ usage(builtin_check_ref_format_usage);
+ }
++
++ if (check_branch && (flags || normalize))
++ usage(builtin_check_ref_format_usage);
++
+ if (! (i == argc - 1))
+ usage(builtin_check_ref_format_usage);
+
+--
+2.10.1
+