| #include "blob.h" |
| #include "cache.h" |
| #include <stdlib.h> |
| |
| const char *blob_type = "blob"; |
| |
| struct blob *lookup_blob(const unsigned char *sha1) |
| { |
| struct object *obj = lookup_object(sha1); |
| if (!obj) { |
| struct blob *ret = xmalloc(sizeof(struct blob)); |
| memset(ret, 0, sizeof(struct blob)); |
| created_object(sha1, &ret->object); |
| ret->object.type = blob_type; |
| return ret; |
| } |
| if (!obj->type) |
| obj->type = blob_type; |
| if (obj->type != blob_type) { |
| error("Object %s is a %s, not a blob", |
| sha1_to_hex(sha1), obj->type); |
| return NULL; |
| } |
| return (struct blob *) obj; |
| } |
| |
| int parse_blob_buffer(struct blob *item, void *buffer, unsigned long size) |
| { |
| item->object.parsed = 1; |
| return 0; |
| } |
| |
| int parse_blob(struct blob *item) |
| { |
| char type[20]; |
| void *buffer; |
| unsigned long size; |
| int ret; |
| |
| if (item->object.parsed) |
| return 0; |
| buffer = read_sha1_file(item->object.sha1, type, &size); |
| if (!buffer) |
| return error("Could not read %s", |
| sha1_to_hex(item->object.sha1)); |
| if (strcmp(type, blob_type)) |
| return error("Object %s not a blob", |
| sha1_to_hex(item->object.sha1)); |
| ret = parse_blob_buffer(item, buffer, size); |
| free(buffer); |
| return ret; |
| } |