Re: [PATCH v2 2/5] ref-filter: add function to print single ref_array_item

From: Lukas P <redacted>

ref-filter functions are useful for printing git object information
using a format specifier. However, some other modules may not want to use
this functionality on a ref-array but only print a single item.

Expose a format_ref function to create, pretty print and free individual
ref-items.

Signed-off-by: Lukas P <redacted>
---
+void format_ref(const char *name, const unsigned char *sha1, const char *format,
+		unsigned kind)
+{
+	struct ref_array_item *ref_item;
+	ref_item = new_ref_array_item(name, sha1, 0);
+	ref_item->kind = kind;
+	show_ref_array_item(ref_item, format, 0);
+	free_array_item(ref_item);
+}
+
 /*  If no sorting option is given, use refname to sort as default */
 struct ref_sorting *ref_default_sorting(void)
 {

diff --git a/ref-filter.h b/ref-filter.h
index 14d435e..1ef7999 100644
--- a/ref-filter.h
+++ b/ref-filter.h

@@ -107,4 +107,8 @@ struct ref_sorting *ref_default_sorting(void);
 /*  Function to parse --merged and --no-merged options */
 int parse_opt_merge_filter(const struct option *opt, const char *arg, int unset);
 
+/* Pretty-print a single ref */
+void format_ref(const char *name, const unsigned char *sha1, const char *format,
+		unsigned kind);