[PATCH v4 03/10] ref-filter: add option to filter only tags

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From: Karthik Nayak <karthik.188@xxxxxxxxx>

Add a functions called 'for_each_tag_ref_fullpath()' to refs.{c,h}
which iterates through each tag ref without trimming the path.

Add an option in 'filter_refs()' to use 'for_each_tag_ref_fullpath()'
and filter refs. This type checking is done by adding a
'FILTER_REFS_TAGS' in 'ref-filter.h'

Mentored-by: Christian Couder <christian.couder@xxxxxxxxx>
Mentored-by: Matthieu Moy <matthieu.moy@xxxxxxxxxxxxxxx>
Signed-off-by: Karthik Nayak <karthik.188@xxxxxxxxx>
---
 ref-filter.c | 2 ++
 ref-filter.h | 1 +
 refs.c       | 5 +++++
 refs.h       | 1 +
 4 files changed, 9 insertions(+)

diff --git a/ref-filter.c b/ref-filter.c
index fd13a23..34e6603 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -1157,6 +1157,8 @@ int filter_refs(struct ref_array *array, struct ref_filter *filter, unsigned int
 		ret = for_each_rawref(ref_filter_handler, &ref_cbdata);
 	else if (type & FILTER_REFS_ALL)
 		ret = for_each_ref(ref_filter_handler, &ref_cbdata);
+	else if (type & FILTER_REFS_TAGS)
+		ret = for_each_tag_ref_fullpath(ref_filter_handler, &ref_cbdata);
 	else if (type)
 		die("filter_refs: invalid type");
 
diff --git a/ref-filter.h b/ref-filter.h
index bacbb23..729dece 100644
--- a/ref-filter.h
+++ b/ref-filter.h
@@ -15,6 +15,7 @@
 
 #define FILTER_REFS_INCLUDE_BROKEN 0x1
 #define FILTER_REFS_ALL 0x2
+#define FILTER_REFS_TAGS 0x4
 
 struct atom_value {
 	const char *s;
diff --git a/refs.c b/refs.c
index ce8cd8d..b679fce 100644
--- a/refs.c
+++ b/refs.c
@@ -2103,6 +2103,11 @@ int for_each_tag_ref(each_ref_fn fn, void *cb_data)
 	return for_each_ref_in("refs/tags/", fn, cb_data);
 }
 
+int for_each_tag_ref_fullpath(each_ref_fn fn, void *cb_data)
+{
+	return do_for_each_ref(&ref_cache, "refs/tags/", fn, 0, 0, cb_data);
+}
+
 int for_each_tag_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
 {
 	return for_each_ref_in_submodule(submodule, "refs/tags/", fn, cb_data);
diff --git a/refs.h b/refs.h
index e82fca5..e5d53d3 100644
--- a/refs.h
+++ b/refs.h
@@ -174,6 +174,7 @@ extern int head_ref(each_ref_fn fn, void *cb_data);
 extern int for_each_ref(each_ref_fn fn, void *cb_data);
 extern int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data);
 extern int for_each_tag_ref(each_ref_fn fn, void *cb_data);
+extern int for_each_tag_ref_fullpath(each_ref_fn fn, void *cb_data);
 extern int for_each_branch_ref(each_ref_fn fn, void *cb_data);
 extern int for_each_remote_ref(each_ref_fn fn, void *cb_data);
 extern int for_each_replace_ref(each_ref_fn fn, void *cb_data);
-- 
2.4.6

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