[PATCH v2 1/2] [GSOC] ref-filter: get rid of show_ref_array_item

["ZheNing Hu via GitGitGadget" <gitgitgadget@gmail.com>]

From: ZheNing Hu <adlternative@gmail.com>

Inlining the exported function `show_ref_array_item()`,
which is not providing the right level of abstraction,
simplifies the API and can unlock improvements at the
former call sites.

Helped-by: René Scharfe <l.s.r@web.de>
Signed-off-by: ZheNing Hu <adlternative@gmail.com>
---
 builtin/for-each-ref.c | 14 ++++++++++++--
 builtin/tag.c          | 14 ++++++++++++--
 ref-filter.c           | 25 ++++++++++---------------
 ref-filter.h           |  2 --
 4 files changed, 34 insertions(+), 21 deletions(-)

diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c
index cb9c81a04606..8520008604e3 100644
--- a/builtin/for-each-ref.c
+++ b/builtin/for-each-ref.c
@@ -80,8 +80,18 @@ int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
 
 	if (!maxcount || array.nr < maxcount)
 		maxcount = array.nr;
-	for (i = 0; i < maxcount; i++)
-		show_ref_array_item(array.items[i], &format);
+	for (i = 0; i < maxcount; i++) {
+		struct strbuf output = STRBUF_INIT;
+		struct strbuf err = STRBUF_INIT;
+
+		if (format_ref_array_item(array.items[i], &format, &output, &err))
+			die("%s", err.buf);
+		fwrite(output.buf, 1, output.len, stdout);
+		putchar('\n');
+
+		strbuf_release(&err);
+		strbuf_release(&output);
+	}
 	ref_array_clear(&array);
 	return 0;
 }
diff --git a/builtin/tag.c b/builtin/tag.c
index d403417b5625..d92d8e110b4d 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -63,8 +63,18 @@ static int list_tags(struct ref_filter *filter, struct ref_sorting *sorting,
 	filter_refs(&array, filter, FILTER_REFS_TAGS);
 	ref_array_sort(sorting, &array);
 
-	for (i = 0; i < array.nr; i++)
-		show_ref_array_item(array.items[i], format);
+	for (i = 0; i < array.nr; i++) {
+		struct strbuf output = STRBUF_INIT;
+		struct strbuf err = STRBUF_INIT;
+
+		if (format_ref_array_item(array.items[i], format, &output, &err))
+			die("%s", err.buf);
+		fwrite(output.buf, 1, output.len, stdout);
+		putchar('\n');
+
+		strbuf_release(&err);
+		strbuf_release(&output);
+	}
 	ref_array_clear(&array);
 	free(to_free);
 
diff --git a/ref-filter.c b/ref-filter.c
index f0bd32f71416..df67047fd615 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -2435,27 +2435,22 @@ int format_ref_array_item(struct ref_array_item *info,
 	return 0;
 }
 
-void show_ref_array_item(struct ref_array_item *info,
-			 const struct ref_format *format)
-{
-	struct strbuf final_buf = STRBUF_INIT;
-	struct strbuf error_buf = STRBUF_INIT;
-
-	if (format_ref_array_item(info, format, &final_buf, &error_buf))
-		die("%s", error_buf.buf);
-	fwrite(final_buf.buf, 1, final_buf.len, stdout);
-	strbuf_release(&error_buf);
-	strbuf_release(&final_buf);
-	putchar('\n');
-}
-
 void pretty_print_ref(const char *name, const struct object_id *oid,
 		      const struct ref_format *format)
 {
 	struct ref_array_item *ref_item;
+	struct strbuf output = STRBUF_INIT;
+	struct strbuf err = STRBUF_INIT;
+
 	ref_item = new_ref_array_item(name, oid);
 	ref_item->kind = ref_kind_from_refname(name);
-	show_ref_array_item(ref_item, format);
+	if (format_ref_array_item(ref_item, format, &output, &err))
+		die("%s", err.buf);
+	fwrite(output.buf, 1, output.len, stdout);
+	putchar('\n');
+
+	strbuf_release(&err);
+	strbuf_release(&output);
 	free_array_item(ref_item);
 }
 
diff --git a/ref-filter.h b/ref-filter.h
index 19ea4c413409..baf72a718965 100644
--- a/ref-filter.h
+++ b/ref-filter.h
@@ -119,8 +119,6 @@ int format_ref_array_item(struct ref_array_item *info,
 			  const struct ref_format *format,
 			  struct strbuf *final_buf,
 			  struct strbuf *error_buf);
-/*  Print the ref using the given format and quote_style */
-void show_ref_array_item(struct ref_array_item *info, const struct ref_format *format);
 /*  Parse a single sort specifier and add it to the list */
 void parse_ref_sorting(struct ref_sorting **sorting_tail, const char *atom);
 /*  Callback function for parsing the sort option */
-- 
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