mirror of
https://git.proxmox.com/git/libgit2
synced 2025-05-07 05:25:03 +00:00
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/*
|
|
* Copyright (C) the libgit2 contributors. All rights reserved.
|
|
*
|
|
* This file is part of libgit2, distributed under the GNU GPL v2 with
|
|
* a Linking Exception. For full terms see the included COPYING file.
|
|
*/
|
|
#ifndef INCLUDE_delta_apply_h__
|
|
#define INCLUDE_delta_apply_h__
|
|
|
|
#include "odb.h"
|
|
|
|
/**
|
|
* Apply a git binary delta to recover the original content.
|
|
*
|
|
* @param out the output buffer to receive the original data.
|
|
* Only out->data and out->len are populated, as this is
|
|
* the only information available in the delta.
|
|
* @param base the base to copy from during copy instructions.
|
|
* @param base_len number of bytes available at base.
|
|
* @param delta the delta to execute copy/insert instructions from.
|
|
* @param delta_len total number of bytes in the delta.
|
|
* @return
|
|
* - 0 on a successful delta unpack.
|
|
* - GIT_ERROR if the delta is corrupt or doesn't match the base.
|
|
*/
|
|
extern int git__delta_apply(
|
|
git_rawobj *out,
|
|
const unsigned char *base,
|
|
size_t base_len,
|
|
const unsigned char *delta,
|
|
size_t delta_len);
|
|
|
|
/**
|
|
* Read the header of a git binary delta.
|
|
*
|
|
* @param delta the delta to execute copy/insert instructions from.
|
|
* @param delta_len total number of bytes in the delta.
|
|
* @param base_sz pointer to store the base size field.
|
|
* @param res_sz pointer to store the result size field.
|
|
* @return
|
|
* - 0 on a successful decoding the header.
|
|
* - GIT_ERROR if the delta is corrupt.
|
|
*/
|
|
extern int git__delta_read_header(
|
|
const unsigned char *delta,
|
|
size_t delta_len,
|
|
size_t *base_sz,
|
|
size_t *res_sz);
|
|
|
|
#endif
|