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/*
* Copyright (C) 2009-2012 the libgit2 contributors
*
* 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_git_diff_h__
#define INCLUDE_git_diff_h__
#include "common.h"
#include "types.h"
#include "oid.h"
#include "tree.h"
#include "refs.h"
/**
* @file git2/diff.h
* @brief Git tree and file differencing routines.
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
typedef struct {
int context_lines;
int interhunk_lines;
int ignore_whitespace;
int force_text;
git_strarray pathspec;
} git_diff_options;
typedef struct {
git_status_t status; /* value from tree.h */
unsigned int old_attr;
unsigned int new_attr;
git_oid old_oid;
git_oid new_oid;
git_blob *old_blob;
git_blob *new_blob;
const char *path;
const char *new_path; /* NULL unless status is RENAMED or COPIED */
int similarity; /* value from 0 to 100 */
int binary; /* diff as binary? */
} git_diff_delta;
typedef int (*git_diff_file_fn)(
void *cb_data,
git_diff_delta *delta,
float progress);
typedef struct {
int old_start;
int old_lines;
int new_start;
int new_lines;
} git_diff_range;
typedef int (*git_diff_hunk_fn)(
void *cb_data,
git_diff_delta *delta,
git_diff_range *range,
const char *header,
size_t header_len);
#define GIT_DIFF_LINE_CONTEXT ' '
#define GIT_DIFF_LINE_ADDITION '+'
#define GIT_DIFF_LINE_DELETION '-'
#define GIT_DIFF_LINE_ADD_EOFNL '\n'
#define GIT_DIFF_LINE_DEL_EOFNL '\0'
typedef int (*git_diff_line_fn)(
void *cb_data,
git_diff_delta *delta,
char line_origin, /* GIT_DIFF_LINE value from above */
const char *content,
size_t content_len);
typedef struct git_diff_list git_diff_list;
/*
* Generate diff lists
*/
GIT_EXTERN(int) git_diff_tree_to_tree(
git_repository *repo,
const git_diff_options *opts,
git_tree *old,
git_tree *new,
git_diff_list **diff);
GIT_EXTERN(int) git_diff_index_to_tree(
git_repository *repo,
const git_diff_options *opts,
git_tree *old,
git_diff_list **diff);
GIT_EXTERN(int) git_diff_workdir_to_tree(
git_repository *repo,
const git_diff_options *opts,
git_tree *old,
git_diff_list **diff);
GIT_EXTERN(int) git_diff_workdir_to_index(
git_repository *repo,
const git_diff_options *opts,
git_diff_list **diff);
GIT_EXTERN(void) git_diff_list_free(git_diff_list *diff);
/*
* Process diff lists
*/
GIT_EXTERN(int) git_diff_foreach(
git_diff_list *diff,
void *cb_data,
git_diff_file_fn file_cb,
git_diff_hunk_fn hunk_cb,
git_diff_line_fn line_cb);
#ifndef _STDIO_H_
#include <stdio.h>
#endif
GIT_EXTERN(int) git_diff_print_compact(
FILE *fp, git_diff_list *diff);
GIT_EXTERN(int) git_diff_print_patch(
FILE *fp, git_diff_list *diff);
/*
* Misc
*/
GIT_EXTERN(int) git_diff_blobs(
git_repository *repo,
git_blob *old,
git_blob *new,
git_diff_options *options,
void *cb_data,
git_diff_hunk_fn hunk_cb,
git_diff_line_fn line_cb);
GIT_END_DECL
/** @} */
#endif
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