prune: do not show error from pack-redundant when no packs are found.
[git/git.git] / blob.c
1 #include "blob.h"
2 #include "cache.h"
3 #include <stdlib.h>
4
5 const char *blob_type = "blob";
6
7 struct blob *lookup_blob(const unsigned char *sha1)
8 {
9 struct object *obj = lookup_object(sha1);
10 if (!obj) {
11 struct blob *ret = xmalloc(sizeof(struct blob));
12 memset(ret, 0, sizeof(struct blob));
13 created_object(sha1, &ret->object);
14 ret->object.type = blob_type;
15 return ret;
16 }
17 if (!obj->type)
18 obj->type = blob_type;
19 if (obj->type != blob_type) {
20 error("Object %s is a %s, not a blob",
21 sha1_to_hex(sha1), obj->type);
22 return NULL;
23 }
24 return (struct blob *) obj;
25 }
26
27 int parse_blob_buffer(struct blob *item, void *buffer, unsigned long size)
28 {
29 item->object.parsed = 1;
30 return 0;
31 }
32
33 int parse_blob(struct blob *item)
34 {
35 char type[20];
36 void *buffer;
37 unsigned long size;
38 int ret;
39
40 if (item->object.parsed)
41 return 0;
42 buffer = read_sha1_file(item->object.sha1, type, &size);
43 if (!buffer)
44 return error("Could not read %s",
45 sha1_to_hex(item->object.sha1));
46 if (strcmp(type, blob_type))
47 return error("Object %s not a blob",
48 sha1_to_hex(item->object.sha1));
49 ret = parse_blob_buffer(item, buffer, size);
50 free(buffer);
51 return ret;
52 }