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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_diff_patch_h__
#define INCLUDE_diff_patch_h__
#include "common.h"
#include "diff.h"
#include "diff_file.h"
#include "array.h"
/* cached information about a single span in a diff */
typedef struct diff_patch_line diff_patch_line;
struct diff_patch_line {
const char *ptr;
size_t len;
size_t lines, oldno, newno;
char origin;
};
/* cached information about a hunk in a diff */
typedef struct diff_patch_hunk diff_patch_hunk;
struct diff_patch_hunk {
git_diff_range range;
char header[128];
size_t header_len;
size_t line_start;
size_t line_count;
};
struct git_diff_patch {
git_refcount rc;
git_diff_list *diff; /* for refcount purposes, maybe NULL for blob diffs */
git_diff_delta *delta;
size_t delta_index;
git_diff_file_content ofile;
git_diff_file_content nfile;
uint32_t flags;
git_array_t(diff_patch_hunk) hunks;
git_array_t(diff_patch_line) lines;
size_t oldno, newno;
size_t content_size;
git_pool flattened;
};
enum {
GIT_DIFF_PATCH_ALLOCATED = (1 << 0),
GIT_DIFF_PATCH_INITIALIZED = (1 << 1),
GIT_DIFF_PATCH_LOADED = (1 << 2),
GIT_DIFF_PATCH_DIFFABLE = (1 << 3),
GIT_DIFF_PATCH_DIFFED = (1 << 4),
GIT_DIFF_PATCH_FLATTENED = (1 << 5),
};
typedef struct git_diff_output git_diff_output;
struct git_diff_output {
/* these callbacks are issued with the diff data */
git_diff_file_cb file_cb;
git_diff_hunk_cb hunk_cb;
git_diff_data_cb data_cb;
void *payload;
/* this records the actual error in cases where it may be obscured */
int error;
/* this callback is used to do the diff and drive the other callbacks.
* see diff_xdiff.h for how to use this in practice for now.
*/
int (*diff_cb)(git_diff_output *output, git_diff_patch *patch);
};
#endif
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