[PATCH v2 1/2] ref-filter: get rid of duplicate code

[Olga Telezhnaya <olyatelezhnaya@xxxxxxxxx>]

Make one function from 2 duplicate pieces and invoke it twice.

Signed-off-by: Olga Telezhnaia <olyatelezhnaya@xxxxxxxxx>
Mentored-by: Christian Couder <christian.couder@xxxxxxxxx>
Mentored by: Jeff King <peff@xxxxxxxx>
---
 ref-filter.c | 45 +++++++++++++++++++++------------------------
 1 file changed, 21 insertions(+), 24 deletions(-)

diff --git a/ref-filter.c b/ref-filter.c
index f9e25aea7a97e..83ffd84affe52 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -1354,15 +1354,31 @@ static const char *get_refname(struct used_atom *atom, struct ref_array_item *re
 	return show_ref(&atom->u.refname, ref->refname);
 }
 
+static void get_object(struct ref_array_item *ref, const struct object_id *oid,
+		       int deref, struct object **obj)
+{
+	int eaten;
+	unsigned long size;
+	void *buf = get_obj(oid, obj, &size, &eaten);
+	if (!buf)
+		die(_("missing object %s for %s"),
+		    oid_to_hex(oid), ref->refname);
+	if (!*obj)
+		die(_("parse_object_buffer failed on %s for %s"),
+		    oid_to_hex(oid), ref->refname);
+
+	grab_values(ref->value, deref, *obj, buf, size);
+	if (!eaten)
+		free(buf);
+}
+
 /*
  * Parse the object referred by ref, and grab needed value.
  */
 static void populate_value(struct ref_array_item *ref)
 {
-	void *buf;
 	struct object *obj;
-	int eaten, i;
-	unsigned long size;
+	int i;
 	const struct object_id *tagged;
 
 	ref->value = xcalloc(used_atom_cnt, sizeof(struct atom_value));
@@ -1483,17 +1499,7 @@ static void populate_value(struct ref_array_item *ref)
 	return;
 
  need_obj:
-	buf = get_obj(&ref->objectname, &obj, &size, &eaten);
-	if (!buf)
-		die(_("missing object %s for %s"),
-		    oid_to_hex(&ref->objectname), ref->refname);
-	if (!obj)
-		die(_("parse_object_buffer failed on %s for %s"),
-		    oid_to_hex(&ref->objectname), ref->refname);
-
-	grab_values(ref->value, 0, obj, buf, size);
-	if (!eaten)
-		free(buf);
+	get_object(ref, &ref->objectname, 0, &obj);
 
 	/*
 	 * If there is no atom that wants to know about tagged
@@ -1514,16 +1520,7 @@ static void populate_value(struct ref_array_item *ref)
 	 * is not consistent with what deref_tag() does
 	 * which peels the onion to the core.
 	 */
-	buf = get_obj(tagged, &obj, &size, &eaten);
-	if (!buf)
-		die(_("missing object %s for %s"),
-		    oid_to_hex(tagged), ref->refname);
-	if (!obj)
-		die(_("parse_object_buffer failed on %s for %s"),
-		    oid_to_hex(tagged), ref->refname);
-	grab_values(ref->value, 1, obj, buf, size);
-	if (!eaten)
-		free(buf);
+	get_object(ref, tagged, 1, &obj);
 }
 
 /*

--
https://github.com/git/git/pull/460