cat-file: start reusing populate_value()

Move logic related to getting object info from cat-file to ref-filter.
It will help to reuse whole formatting logic from ref-filter further.

Signed-off-by: Olga Telezhnaia <olyatelezhnaya@gmail.com>
Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

3 files changed, 25 insertions, 13 deletions

diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 0c362828ad..6db57e3533 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -285,21 +285,12 @@ static void batch_object_write(const char *obj_name, struct batch_options *opt,
 	struct strbuf buf = STRBUF_INIT;
 	struct ref_array_item item = {0};
 
-	if (!data->skip_object_info &&
-	    sha1_object_info_extended(data->oid.hash, &data->info,
-				      OBJECT_INFO_LOOKUP_REPLACE) < 0) {
-		printf("%s missing\n",
-		       obj_name ? obj_name : oid_to_hex(&data->oid));
-		fflush(stdout);
-		return;
-	}
-
 	item.oid = data->oid;
-	item.type = data->type;
-	item.size = data->size;
-	item.disk_size = data->disk_size;
 	item.rest = data->rest;
-	item.delta_base_oid = &data->delta_base_oid;
+	item.objectname = obj_name;
+
+	if (populate_value(&item))
+		return;
 
 	strbuf_expand(&buf, opt->format.format, expand_format, &item);
 	strbuf_addch(&buf, '\n');
diff --git a/ref-filter.c b/ref-filter.c
index c168eff4d9..a047ef3150 100644
--- a/ref-filter.c
+++ b/ref-filter.c
@@ -1403,6 +1403,23 @@ static const char *get_refname(struct used_atom *atom, struct ref_array_item *re
 	return show_ref(&atom->u.refname, ref->refname);
 }
 
+static int check_and_fill_for_cat(struct ref_array_item *ref)
+{
+	if (!cat_file_info->skip_object_info &&
+	    sha1_object_info_extended(ref->oid.hash, &cat_file_info->info,
+				      OBJECT_INFO_LOOKUP_REPLACE) < 0) {
+		const char *e = ref->objectname;
+		printf("%s missing\n", e ? e : oid_to_hex(&ref->oid));
+		fflush(stdout);
+		return -1;
+	}
+	ref->type = cat_file_info->type;
+	ref->size = cat_file_info->size;
+	ref->disk_size = cat_file_info->disk_size;
+	ref->delta_base_oid = &cat_file_info->delta_base_oid;
+	return 0;
+}
+
 /*
  * Parse the object referred by ref, and grab needed value.
  * Return 0 if everything was successful, -1 otherwise.
@@ -1424,6 +1441,9 @@ int populate_value(struct ref_array_item *ref)
 			ref->symref = "";
 	}
 
+	if (cat_file_info && check_and_fill_for_cat(ref))
+		return -1;
+
 	/* Fill in specials first */
 	for (i = 0; i < used_atom_cnt; i++) {
 		struct used_atom *atom = &used_atom[i];
diff --git a/ref-filter.h b/ref-filter.h
index 87b026b8b7..5c6e019998 100644
--- a/ref-filter.h
+++ b/ref-filter.h
@@ -45,6 +45,7 @@ struct ref_array_item {
 	off_t disk_size;
 	const char *rest;
 	struct object_id *delta_base_oid;
+	const char *objectname;
 	char refname[FLEX_ARRAY];
 };