cat-file: split batch_one_object into two stages

There are really two things going on in this function:

1. We convert the name we got on stdin to a sha1.

2. We look up and print information on the sha1.

Let's split out the second half so that we can call it
separately.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 7d99c157a16f18c0d0d34197804c439575e940ec..499ccda6b6a0032c5370eb5eb2e89ff6fdd30c94 100644 (file)
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -251,10 +251,31 @@ static void print_object_or_die(struct batch_options *opt, struct expand_data *d
        }
 }
 
+static void batch_object_write(const char *obj_name, struct batch_options *opt,
+                              struct expand_data *data)
+{
+       struct strbuf buf = STRBUF_INIT;
+
+       if (sha1_object_info_extended(data->sha1, &data->info, LOOKUP_REPLACE_OBJECT) < 0) {
+               printf("%s missing\n", obj_name);
+               fflush(stdout);
+               return;
+       }
+
+       strbuf_expand(&buf, opt->format, expand_format, data);
+       strbuf_addch(&buf, '\n');
+       batch_write(opt, buf.buf, buf.len);
+       strbuf_release(&buf);
+
+       if (opt->print_contents) {
+               print_object_or_die(opt, data);
+               batch_write(opt, "\n", 1);
+       }
+}
+
 static void batch_one_object(const char *obj_name, struct batch_options *opt,
                             struct expand_data *data)
 {
-       struct strbuf buf = STRBUF_INIT;
        struct object_context ctx;
        int flags = opt->follow_symlinks ? GET_SHA1_FOLLOW_SYMLINKS : 0;
        enum follow_symlinks_result result;
@@ -294,21 +315,7 @@ static void batch_one_object(const char *obj_name, struct batch_options *opt,
                return;
        }
 
-       if (sha1_object_info_extended(data->sha1, &data->info, LOOKUP_REPLACE_OBJECT) < 0) {
-               printf("%s missing\n", obj_name);
-               fflush(stdout);
-               return;
-       }
-
-       strbuf_expand(&buf, opt->format, expand_format, data);
-       strbuf_addch(&buf, '\n');
-       batch_write(opt, buf.buf, buf.len);
-       strbuf_release(&buf);
-
-       if (opt->print_contents) {
-               print_object_or_die(opt, data);
-               batch_write(opt, "\n", 1);
-       }
+       batch_object_write(obj_name, opt, data);
 }
 
 static int batch_objects(struct batch_options *opt)