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27e54bcf82
The usefulness of these helpers came up for me while debugging some of the iterator changes that I was making, so since they have also been requested (albeit indirectly) I thought I'd include them.
64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
/*
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* Copyright (C) the libgit2 contributors. All rights reserved.
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*
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* This file is part of libgit2, distributed under the GNU GPL v2 with
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* a Linking Exception. For full terms see the included COPYING file.
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*/
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#ifndef INCLUDE_sys_git_diff_h__
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#define INCLUDE_sys_git_diff_h__
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#include "git2/common.h"
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#include "git2/types.h"
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#include "git2/oid.h"
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/**
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* @file git2/sys/diff.h
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* @brief Low-level Git diff utilities
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* @ingroup Git
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* @{
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*/
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GIT_BEGIN_DECL
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/**
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* Diff print callback that writes to a git_buf.
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*
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* This function is provided not for you to call it directly, but instead
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* so you can use it as a function pointer to the `git_diff_print` or
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* `git_patch_print` APIs. When using those APIs, you specify a callback
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* to actually handle the diff and/or patch data.
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*
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* Use this callback to easily write that data to a `git_buf` buffer. You
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* must pass a `git_buf *` value as the payload to the `git_diff_print`
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* and/or `git_patch_print` function. The data will be appended to the
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* buffer (after any existing content).
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*/
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GIT_EXTERN(int) git_diff_print_callback__to_buf(
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const git_diff_delta *delta,
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const git_diff_hunk *hunk,
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const git_diff_line *line,
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void *payload); /*< payload must be a `git_buf *` */
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/**
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* Diff print callback that writes to stdio FILE handle.
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*
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* This function is provided not for you to call it directly, but instead
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* so you can use it as a function pointer to the `git_diff_print` or
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* `git_patch_print` APIs. When using those APIs, you specify a callback
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* to actually handle the diff and/or patch data.
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*
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* Use this callback to easily write that data to a stdio FILE handle. You
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* must pass a `FILE *` value (such as `stdout` or `stderr` or the return
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* value from `fopen()`) as the payload to the `git_diff_print`
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* and/or `git_patch_print` function. If you pass NULL, this will write
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* data to `stdout`.
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*/
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GIT_EXTERN(int) git_diff_print_callback__to_file_handle(
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const git_diff_delta *delta,
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const git_diff_hunk *hunk,
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const git_diff_line *line,
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void *payload); /*< payload must be a `FILE *` */
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/** @} */
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GIT_END_DECL
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#endif
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