[PATCH v4 03/21] refs: add methods for the ref iterators

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From: Ronnie Sahlberg <sahlberg@xxxxxxxxxx>

Signed-off-by: Ronnie Sahlberg <sahlberg@xxxxxxxxxx>
Signed-off-by: David Turner <dturner@xxxxxxxxxxxxxxxx>
---
 refs.c               | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 refs/files-backend.c | 41 +++++++++++++++++++++++++++------------
 refs/refs-internal.h | 29 ++++++++++++++++++++++++++++
 3 files changed, 112 insertions(+), 12 deletions(-)

diff --git a/refs.c b/refs.c
index afdde7d..e598b73 100644
--- a/refs.c
+++ b/refs.c
@@ -1158,3 +1158,57 @@ int resolve_gitlink_ref(const char *path, const char *refname,
 {
 	return the_refs_backend->resolve_gitlink_ref(path, refname, sha1);
 }
+
+int head_ref(each_ref_fn fn, void *cb_data)
+{
+	return the_refs_backend->head_ref(fn, cb_data);
+}
+
+int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
+{
+	return the_refs_backend->head_ref_submodule(submodule, fn, cb_data);
+}
+
+int for_each_ref(each_ref_fn fn, void *cb_data)
+{
+	return the_refs_backend->for_each_ref(fn, cb_data);
+}
+
+int for_each_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
+{
+	return the_refs_backend->for_each_ref_submodule(submodule, fn, cb_data);
+}
+
+int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data)
+{
+	return the_refs_backend->for_each_ref_in(prefix, fn, cb_data);
+}
+
+int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data,
+			unsigned int broken)
+{
+	return the_refs_backend->for_each_fullref_in(prefix, fn, cb_data,
+						     broken);
+}
+
+int for_each_ref_in_submodule(const char *submodule, const char *prefix,
+			      each_ref_fn fn, void *cb_data)
+{
+	return the_refs_backend->for_each_ref_in_submodule(submodule, prefix,
+							   fn, cb_data);
+}
+
+int for_each_rawref(each_ref_fn fn, void *cb_data)
+{
+	return the_refs_backend->for_each_rawref(fn, cb_data);
+}
+
+int for_each_namespaced_ref(each_ref_fn fn, void *cb_data)
+{
+	return the_refs_backend->for_each_namespaced_ref(fn, cb_data);
+}
+
+int for_each_replace_ref(each_ref_fn fn, void *cb_data)
+{
+	return the_refs_backend->for_each_replace_ref(fn, cb_data);
+}
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 882d830..0772a02 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -1774,32 +1774,36 @@ static int do_head_ref(const char *submodule, each_ref_fn fn, void *cb_data)
 	return 0;
 }
 
-int head_ref(each_ref_fn fn, void *cb_data)
+static int files_head_ref(each_ref_fn fn, void *cb_data)
 {
 	return do_head_ref(NULL, fn, cb_data);
 }
 
-int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
+static int files_head_ref_submodule(const char *submodule, each_ref_fn fn,
+				    void *cb_data)
 {
 	return do_head_ref(submodule, fn, cb_data);
 }
 
-int for_each_ref(each_ref_fn fn, void *cb_data)
+static int files_for_each_ref(each_ref_fn fn, void *cb_data)
 {
 	return do_for_each_ref(&ref_cache, "", fn, 0, 0, cb_data);
 }
 
-int for_each_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
+static int files_for_each_ref_submodule(const char *submodule, each_ref_fn fn,
+					void *cb_data)
 {
 	return do_for_each_ref(get_ref_cache(submodule), "", fn, 0, 0, cb_data);
 }
 
-int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data)
+static int files_for_each_ref_in(const char *prefix, each_ref_fn fn,
+				 void *cb_data)
 {
 	return do_for_each_ref(&ref_cache, prefix, fn, strlen(prefix), 0, cb_data);
 }
 
-int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsigned int broken)
+static int files_for_each_fullref_in(const char *prefix, each_ref_fn fn,
+				     void *cb_data, unsigned int broken)
 {
 	unsigned int flag = 0;
 
@@ -1808,19 +1812,21 @@ int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsig
 	return do_for_each_ref(&ref_cache, prefix, fn, 0, flag, cb_data);
 }
 
-int for_each_ref_in_submodule(const char *submodule, const char *prefix,
-		each_ref_fn fn, void *cb_data)
+static int files_for_each_ref_in_submodule(const char *submodule,
+					   const char *prefix,
+					   each_ref_fn fn, void *cb_data)
 {
-	return do_for_each_ref(get_ref_cache(submodule), prefix, fn, strlen(prefix), 0, cb_data);
+	return do_for_each_ref(get_ref_cache(submodule), prefix, fn,
+			       strlen(prefix), 0, cb_data);
 }
 
-int for_each_replace_ref(each_ref_fn fn, void *cb_data)
+static int files_for_each_replace_ref(each_ref_fn fn, void *cb_data)
 {
 	return do_for_each_ref(&ref_cache, git_replace_ref_base, fn,
 			       strlen(git_replace_ref_base), 0, cb_data);
 }
 
-int for_each_namespaced_ref(each_ref_fn fn, void *cb_data)
+static int files_for_each_namespaced_ref(each_ref_fn fn, void *cb_data)
 {
 	struct strbuf buf = STRBUF_INIT;
 	int ret;
@@ -1830,7 +1836,7 @@ int for_each_namespaced_ref(each_ref_fn fn, void *cb_data)
 	return ret;
 }
 
-int for_each_rawref(each_ref_fn fn, void *cb_data)
+static int files_for_each_rawref(each_ref_fn fn, void *cb_data)
 {
 	return do_for_each_ref(&ref_cache, "", fn, 0,
 			       DO_FOR_EACH_INCLUDE_BROKEN, cb_data);
@@ -3551,4 +3557,15 @@ struct ref_storage_be refs_be_files = {
 	files_resolve_ref_unsafe,
 	files_verify_refname_available,
 	files_resolve_gitlink_ref,
+
+	files_head_ref,
+	files_head_ref_submodule,
+	files_for_each_ref,
+	files_for_each_ref_submodule,
+	files_for_each_ref_in,
+	files_for_each_fullref_in,
+	files_for_each_ref_in_submodule,
+	files_for_each_rawref,
+	files_for_each_namespaced_ref,
+	files_for_each_replace_ref,
 };
diff --git a/refs/refs-internal.h b/refs/refs-internal.h
index e83bc22..4a1d215 100644
--- a/refs/refs-internal.h
+++ b/refs/refs-internal.h
@@ -216,6 +216,24 @@ typedef int verify_refname_available_fn(const char *refname, struct string_list
 typedef int resolve_gitlink_ref_fn(const char *path, const char *refname,
 				   unsigned char *sha1);
 
+/* iteration methods */
+typedef int head_ref_fn(each_ref_fn fn, void *cb_data);
+typedef int head_ref_submodule_fn(const char *submodule, each_ref_fn fn,
+				  void *cb_data);
+typedef int for_each_ref_fn(each_ref_fn fn, void *cb_data);
+typedef int for_each_ref_submodule_fn(const char *submodule, each_ref_fn fn,
+				      void *cb_data);
+typedef int for_each_ref_in_fn(const char *prefix, each_ref_fn fn,
+			       void *cb_data);
+typedef int for_each_fullref_in_fn(const char *prefix, each_ref_fn fn,
+				   void *cb_data, unsigned int broken);
+typedef int for_each_ref_in_submodule_fn(const char *submodule,
+					 const char *prefix,
+					 each_ref_fn fn, void *cb_data);
+typedef int for_each_rawref_fn(each_ref_fn fn, void *cb_data);
+typedef int for_each_namespaced_ref_fn(each_ref_fn fn, void *cb_data);
+typedef int for_each_replace_ref_fn(each_ref_fn fn, void *cb_data);
+
 struct ref_storage_be {
 	struct ref_storage_be *next;
 	const char *name;
@@ -228,6 +246,17 @@ struct ref_storage_be {
 	resolve_ref_unsafe_fn *resolve_ref_unsafe;
 	verify_refname_available_fn *verify_refname_available;
 	resolve_gitlink_ref_fn *resolve_gitlink_ref;
+
+	head_ref_fn *head_ref;
+	head_ref_submodule_fn *head_ref_submodule;
+	for_each_ref_fn *for_each_ref;
+	for_each_ref_submodule_fn *for_each_ref_submodule;
+	for_each_ref_in_fn *for_each_ref_in;
+	for_each_fullref_in_fn *for_each_fullref_in;
+	for_each_ref_in_submodule_fn *for_each_ref_in_submodule;
+	for_each_rawref_fn *for_each_rawref;
+	for_each_namespaced_ref_fn *for_each_namespaced_ref;
+	for_each_replace_ref_fn *for_each_replace_ref;
 };
 
 extern struct ref_storage_be refs_be_files;
-- 
2.4.2.749.g730654d-twtrsrc

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