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 = alloc_blob_node();
  12                created_object(sha1, &ret->object);
  13                ret->object.type = OBJ_BLOB;
  14                return ret;
  15        }
  16        if (!obj->type)
  17                obj->type = OBJ_BLOB;
  18        if (obj->type != OBJ_BLOB) {
  19                error("Object %s is a %s, not a blob",
  20                      sha1_to_hex(sha1), typename(obj->type));
  21                return NULL;
  22        }
  23        return (struct blob *) obj;
  24}
  25
  26int parse_blob_buffer(struct blob *item, void *buffer, unsigned long size)
  27{
  28        item->object.parsed = 1;
  29        return 0;
  30}
  31
  32int parse_blob(struct blob *item)
  33{
  34        char type[20];
  35        void *buffer;
  36        unsigned long size;
  37        int ret;
  38
  39        if (item->object.parsed)
  40                return 0;
  41        buffer = read_sha1_file(item->object.sha1, type, &size);
  42        if (!buffer)
  43                return error("Could not read %s",
  44                             sha1_to_hex(item->object.sha1));
  45        if (strcmp(type, blob_type))
  46                return error("Object %s not a blob",
  47                             sha1_to_hex(item->object.sha1));
  48        ret = parse_blob_buffer(item, buffer, size);
  49        free(buffer);
  50        return ret;
  51}