[PATCH 1/7] refs: add a "for_each_replace_ref" function

[Christian Couder <chriscool@tuxfamily.org>]

This is some preparation work for the following patches that are using
the "refs/replace/" ref namespace.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 refs.c |    5 +++++
 refs.h |    1 +
 2 files changed, 6 insertions(+), 0 deletions(-)

	Here is a new patch series. I only fixed what Junio reported
	as bugs (thanks) and added a global switch to forbid the
	replacement for connectivity walkers. I added a few test
	cases for the latter, but I may be missing a lot of things.

diff --git a/refs.c b/refs.c
index 33ced65..042106d 100644
--- a/refs.c
+++ b/refs.c
@@ -632,6 +632,11 @@ int for_each_remote_ref(each_ref_fn fn, void *cb_data)
 	return do_for_each_ref("refs/remotes/", fn, 13, cb_data);
 }
 
+int for_each_replace_ref(each_ref_fn fn, void *cb_data)
+{
+	return do_for_each_ref("refs/replace/", fn, 13, cb_data);
+}
+
 /*
  * Make sure "ref" is something reasonable to have under ".git/refs/";
  * We do not like it if:
diff --git a/refs.h b/refs.h
index 06ad260..8d2ee5a 100644
--- a/refs.h
+++ b/refs.h
@@ -23,6 +23,7 @@ extern int for_each_ref(each_ref_fn, void *);
 extern int for_each_tag_ref(each_ref_fn, void *);
 extern int for_each_branch_ref(each_ref_fn, void *);
 extern int for_each_remote_ref(each_ref_fn, void *);
+extern int for_each_replace_ref(each_ref_fn, void *);
 
 /*
  * Extra refs will be listed by for_each_ref() before any actual refs
-- 
1.6.1.231.g9c286