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#include "cache.h"
#include "blob.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 = xcalloc(1, 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",
if (strcmp(type, blob_type))
return error("Object %s not a blob",
ret = parse_blob_buffer(item, buffer, size);
return ret;
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