Andrew's git - gitweb.git/blob

   1#include "cache.h"
   2#include "blob.h"
   3#include <stdlib.h>
   4
   5const char *blob_type = "blob";
   6
   7struct 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
  27int parse_blob_buffer(struct blob *item, void *buffer, unsigned long size)
  28{
  29        item->object.parsed = 1;
  30        return 0;
  31}
  32
  33int 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}