summaryrefslogtreecommitdiff
path: root/diff.h
blob: cc7cc627c88d135c3f8d814449813e73c1ea3430 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
/*
 * Copyright (C) 2005 Junio C Hamano
 */
#ifndef DIFF_H
#define DIFF_H
 
#include "tree-walk.h"
 
struct diff_options;
 
typedef void (*change_fn_t)(struct diff_options *options,
		 unsigned old_mode, unsigned new_mode,
		 const unsigned char *old_sha1,
		 const unsigned char *new_sha1,
		 const char *base, const char *path);
 
typedef void (*add_remove_fn_t)(struct diff_options *options,
		    int addremove, unsigned mode,
		    const unsigned char *sha1,
		    const char *base, const char *path);
 
struct diff_options {
	const char *filter;
	const char *orderfile;
	const char *pickaxe;
	unsigned recursive:1,
		 tree_in_recursive:1,
		 full_index:1;
	int break_opt;
	int detect_rename;
	int find_copies_harder;
	int line_termination;
	int output_format;
	int pickaxe_opts;
	int rename_score;
	int reverse_diff;
	int rename_limit;
	int setup;
	int abbrev;
 
	int nr_paths;
	const char **paths;
	int *pathlens;
	change_fn_t change;
	add_remove_fn_t add_remove;
};
 
extern void diff_tree_setup_paths(const char **paths, struct diff_options *);
extern void diff_tree_release_paths(struct diff_options *);
extern int diff_tree(struct tree_desc *t1, struct tree_desc *t2,
		     const char *base, struct diff_options *opt);
extern int diff_tree_sha1(const unsigned char *old, const unsigned char *new,
			  const char *base, struct diff_options *opt);
 
struct combine_diff_path {
	struct combine_diff_path *next;
	int len;
	char *path;
	unsigned int mode;
	unsigned char sha1[20];
	struct combine_diff_parent {
		char status;
		unsigned int mode;
		unsigned char sha1[20];
	} parent[FLEX_ARRAY];
};
#define combine_diff_path_size(n, l) \
	(sizeof(struct combine_diff_path) + \
	 sizeof(struct combine_diff_parent) * (n) + (l) + 1)
 
extern int show_combined_diff(struct combine_diff_path *elem, int num_parent,
			      int dense, const char *header,
			      struct diff_options *);
 
extern const char *diff_tree_combined_merge(const unsigned char *sha1, const char *, int, struct diff_options *opt);
 
extern void diff_addremove(struct diff_options *,
			   int addremove,
			   unsigned mode,
			   const unsigned char *sha1,
			   const char *base,
			   const char *path);
 
extern void diff_change(struct diff_options *,
			unsigned mode1, unsigned mode2,
			const unsigned char *sha1,
			const unsigned char *sha2,
			const char *base, const char *path);
 
extern void diff_unmerge(struct diff_options *,
			 const char *path);
 
extern int diff_scoreopt_parse(const char *opt);
 
#define DIFF_SETUP_REVERSE      	1
#define DIFF_SETUP_USE_CACHE		2
#define DIFF_SETUP_USE_SIZE_CACHE	4
 
extern int git_diff_config(const char *var, const char *value);
extern void diff_setup(struct diff_options *);
extern int diff_opt_parse(struct diff_options *, const char **, int);
extern int diff_setup_done(struct diff_options *);
 
#define DIFF_DETECT_RENAME	1
#define DIFF_DETECT_COPY	2
 
#define DIFF_PICKAXE_ALL	1
#define DIFF_PICKAXE_REGEX	2
 
extern void diffcore_std(struct diff_options *);
 
extern void diffcore_std_no_resolve(struct diff_options *);
 
#define COMMON_DIFF_OPTIONS_HELP \
"\ncommon diff options:\n" \
"  -z            output diff-raw with lines terminated with NUL.\n" \
"  -p            output patch format.\n" \
"  -u            synonym for -p.\n" \
"  --name-only   show only names of changed files.\n" \
"  --name-status show names and status of changed files.\n" \
"  --full-index  show full object name on index lines.\n" \
"  --abbrev=<n>  abbreviate object names in diff-tree header and diff-raw.\n" \
"  -R            swap input file pairs.\n" \
"  -B            detect complete rewrites.\n" \
"  -M            detect renames.\n" \
"  -C            detect copies.\n" \
"  --find-copies-harder\n" \
"                try unchanged files as candidate for copy detection.\n" \
"  -l<n>         limit rename attempts up to <n> paths.\n" \
"  -O<file>      reorder diffs according to the <file>.\n" \
"  -S<string>    find filepair whose only one side contains the string.\n" \
"  --pickaxe-all\n" \
"                show all files diff when -S is used and hit is found.\n"
 
extern int diff_queue_is_empty(void);
 
#define DIFF_FORMAT_RAW		1
#define DIFF_FORMAT_PATCH	2
#define DIFF_FORMAT_NO_OUTPUT	3
#define DIFF_FORMAT_NAME	4
#define DIFF_FORMAT_NAME_STATUS	5
 
extern void diff_flush(struct diff_options*);
 
/* diff-raw status letters */
#define DIFF_STATUS_ADDED		'A'
#define DIFF_STATUS_COPIED		'C'
#define DIFF_STATUS_DELETED		'D'
#define DIFF_STATUS_MODIFIED		'M'
#define DIFF_STATUS_RENAMED		'R'
#define DIFF_STATUS_TYPE_CHANGED	'T'
#define DIFF_STATUS_UNKNOWN		'X'
#define DIFF_STATUS_UNMERGED		'U'
 
/* these are not diff-raw status letters proper, but used by
 * diffcore-filter insn to specify additional restrictions.
 */
#define DIFF_STATUS_FILTER_AON		'*'
#define DIFF_STATUS_FILTER_BROKEN	'B'
 
extern const char *diff_unique_abbrev(const unsigned char *, int);
 
#endif /* DIFF_H */