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/*
* 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_sys_git_diff_h__
#define INCLUDE_sys_git_diff_h__
#include "git2/common.h"
#include "git2/types.h"
#include "git2/oid.h"
/**
* @file git2/sys/diff.h
* @brief Low-level Git diff utilities
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
/**
* Diff print callback that writes to a git_buf.
*
* This function is provided not for you to call it directly, but instead
* so you can use it as a function pointer to the `git_diff_print` or
* `git_patch_print` APIs. When using those APIs, you specify a callback
* to actually handle the diff and/or patch data.
*
* Use this callback to easily write that data to a `git_buf` buffer. You
* must pass a `git_buf *` value as the payload to the `git_diff_print`
* and/or `git_patch_print` function. The data will be appended to the
* buffer (after any existing content).
*/
GIT_EXTERN(int) git_diff_print_callback__to_buf(
const git_diff_delta *delta,
const git_diff_hunk *hunk,
const git_diff_line *line,
void *payload); /*< payload must be a `git_buf *` */
/**
* Diff print callback that writes to stdio FILE handle.
*
* This function is provided not for you to call it directly, but instead
* so you can use it as a function pointer to the `git_diff_print` or
* `git_patch_print` APIs. When using those APIs, you specify a callback
* to actually handle the diff and/or patch data.
*
* Use this callback to easily write that data to a stdio FILE handle. You
* must pass a `FILE *` value (such as `stdout` or `stderr` or the return
* value from `fopen()`) as the payload to the `git_diff_print`
* and/or `git_patch_print` function. If you pass NULL, this will write
* data to `stdout`.
*/
GIT_EXTERN(int) git_diff_print_callback__to_file_handle(
const git_diff_delta *delta,
const git_diff_hunk *hunk,
const git_diff_line *line,
void *payload); /*< payload must be a `FILE *` */
/** @} */
GIT_END_DECL
#endif
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