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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"
#include "git2/patch.h"
/* cached information about a hunk in a diff */
typedef struct diff_patch_hunk {
git_diff_hunk hunk;
size_t line_start;
size_t line_count;
} diff_patch_hunk;
enum {
GIT_DIFF_PATCH_ALLOCATED = (1 << 0),
GIT_DIFF_PATCH_INITIALIZED = (1 << 1),
GIT_DIFF_PATCH_LOADED = (1 << 2),
/* the two sides are different */
GIT_DIFF_PATCH_DIFFABLE = (1 << 3),
/* the difference between the two sides has been computed */
GIT_DIFF_PATCH_DIFFED = (1 << 4),
GIT_DIFF_PATCH_FLATTENED = (1 << 5),
};
struct git_patch {
git_refcount rc;
git_diff *diff; /* for refcount purposes, maybe NULL for blob diffs */
git_diff_options diff_opts;
git_diff_delta *delta;
size_t delta_index;
git_diff_file_content ofile;
git_diff_file_content nfile;
uint32_t flags;
git_diff_binary binary;
git_array_t(diff_patch_hunk) hunks;
git_array_t(git_diff_line) lines;
size_t content_size, context_size, header_size;
git_pool flattened;
};
extern git_diff *git_patch__diff(git_patch *);
extern git_diff_driver *git_patch__driver(git_patch *);
extern void git_patch__old_data(char **, size_t *, git_patch *);
extern void git_patch__new_data(char **, size_t *, git_patch *);
extern int git_patch__invoke_callbacks(
git_patch *patch,
git_diff_file_cb file_cb,
git_diff_binary_cb binary_cb,
git_diff_hunk_cb hunk_cb,
git_diff_line_cb line_cb,
void *payload);
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_binary_cb binary_cb;
git_diff_hunk_cb hunk_cb;
git_diff_line_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_patch *patch);
};
#endif
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