t4015: work-around here document problem on Cygwin.
[git/git.git] / diff.h
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1/*
2 * Copyright (C) 2005 Junio C Hamano
3 */
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4#ifndef DIFF_H
5#define DIFF_H
6
1b0c7174 7#include "tree-walk.h"
50f9a858 8
91539833 9struct rev_info;
ac1b3d12 10struct diff_options;
04245581 11struct diff_queue_struct;
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12
13typedef void (*change_fn_t)(struct diff_options *options,
14 unsigned old_mode, unsigned new_mode,
15 const unsigned char *old_sha1,
16 const unsigned char *new_sha1,
17 const char *base, const char *path);
18
19typedef void (*add_remove_fn_t)(struct diff_options *options,
20 int addremove, unsigned mode,
21 const unsigned char *sha1,
22 const char *base, const char *path);
23
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24typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
25 struct diff_options *options, void *data);
26
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27#define DIFF_FORMAT_RAW 0x0001
28#define DIFF_FORMAT_DIFFSTAT 0x0002
29#define DIFF_FORMAT_SUMMARY 0x0004
30#define DIFF_FORMAT_PATCH 0x0008
31
32/* These override all above */
33#define DIFF_FORMAT_NAME 0x0010
34#define DIFF_FORMAT_NAME_STATUS 0x0020
35#define DIFF_FORMAT_CHECKDIFF 0x0040
36
37/* Same as output_format = 0 but we know that -s flag was given
38 * and we should not give default value to output_format.
39 */
40#define DIFF_FORMAT_NO_OUTPUT 0x0080
41
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42#define DIFF_FORMAT_CALLBACK 0x0100
43
6b5ee137 44struct diff_options {
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45 const char *filter;
46 const char *orderfile;
47 const char *pickaxe;
ac1b3d12 48 unsigned recursive:1,
80b1e511 49 tree_in_recursive:1,
0660626c 50 binary:1,
6d64ea96 51 text:1,
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52 full_index:1,
53 silent_on_remove:1,
4bbd261b 54 find_copies_harder:1,
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55 color_diff:1,
56 color_diff_words:1;
ee1e5412 57 int context;
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58 int break_opt;
59 int detect_rename;
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60 int line_termination;
61 int output_format;
62 int pickaxe_opts;
63 int rename_score;
64 int reverse_diff;
8082d8d3 65 int rename_limit;
6b5ee137 66 int setup;
47dd0d59 67 int abbrev;
39bc9a6c 68 const char *msg_sep;
698ce6f8 69 const char *stat_sep;
0d21efa5 70 long xdl_opts;
ac1b3d12 71
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72 int stat_width;
73 int stat_name_width;
74
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75 int nr_paths;
76 const char **paths;
77 int *pathlens;
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78 change_fn_t change;
79 add_remove_fn_t add_remove;
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80 diff_format_fn_t format_callback;
81 void *format_callback_data;
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82};
83
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84enum color_diff {
85 DIFF_RESET = 0,
86 DIFF_PLAIN = 1,
87 DIFF_METAINFO = 2,
88 DIFF_FRAGINFO = 3,
89 DIFF_FILE_OLD = 4,
90 DIFF_FILE_NEW = 5,
91 DIFF_COMMIT = 6,
448c3ef1 92 DIFF_WHITESPACE = 7,
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93};
94const char *diff_get_color(int diff_use_color, enum color_diff ix);
95
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96extern const char mime_boundary_leader[];
97
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98extern void diff_tree_setup_paths(const char **paths, struct diff_options *);
99extern void diff_tree_release_paths(struct diff_options *);
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100extern int diff_tree(struct tree_desc *t1, struct tree_desc *t2,
101 const char *base, struct diff_options *opt);
102extern int diff_tree_sha1(const unsigned char *old, const unsigned char *new,
103 const char *base, struct diff_options *opt);
104
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105struct combine_diff_path {
106 struct combine_diff_path *next;
107 int len;
108 char *path;
2454c962 109 unsigned int mode;
ea726d02 110 unsigned char sha1[20];
2454c962 111 struct combine_diff_parent {
d416df88 112 char status;
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113 unsigned int mode;
114 unsigned char sha1[20];
115 } parent[FLEX_ARRAY];
ea726d02 116};
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117#define combine_diff_path_size(n, l) \
118 (sizeof(struct combine_diff_path) + \
119 sizeof(struct combine_diff_parent) * (n) + (l) + 1)
ea726d02 120
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121extern void show_combined_diff(struct combine_diff_path *elem, int num_parent,
122 int dense, struct rev_info *);
ea726d02 123
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124extern void diff_tree_combined(const unsigned char *sha1, const unsigned char parent[][20], int num_parent, int dense, struct rev_info *rev);
125
91539833 126extern void diff_tree_combined_merge(const unsigned char *sha1, int, struct rev_info *);
af3feefa 127
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128extern void diff_addremove(struct diff_options *,
129 int addremove,
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130 unsigned mode,
131 const unsigned char *sha1,
132 const char *base,
133 const char *path);
134
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135extern void diff_change(struct diff_options *,
136 unsigned mode1, unsigned mode2,
137 const unsigned char *sha1,
138 const unsigned char *sha2,
139 const char *base, const char *path);
77eb2720 140
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141extern void diff_unmerge(struct diff_options *,
142 const char *path);
77eb2720 143
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144extern int diff_scoreopt_parse(const char *opt);
145
19feebc8 146#define DIFF_SETUP_REVERSE 1
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147#define DIFF_SETUP_USE_CACHE 2
148#define DIFF_SETUP_USE_SIZE_CACHE 4
ce240675 149
83ad63cf 150extern int git_diff_ui_config(const char *var, const char *value);
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151extern void diff_setup(struct diff_options *);
152extern int diff_opt_parse(struct diff_options *, const char **, int);
153extern int diff_setup_done(struct diff_options *);
86436c28 154
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155#define DIFF_DETECT_RENAME 1
156#define DIFF_DETECT_COPY 2
157
367cec1c 158#define DIFF_PICKAXE_ALL 1
d01d8c67 159#define DIFF_PICKAXE_REGEX 2
f345b0a0 160
6b5ee137 161extern void diffcore_std(struct diff_options *);
f2ce9fde 162
6b5ee137 163extern void diffcore_std_no_resolve(struct diff_options *);
befe8639 164
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165#define COMMON_DIFF_OPTIONS_HELP \
166"\ncommon diff options:\n" \
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167" -z output diff-raw with lines terminated with NUL.\n" \
168" -p output patch format.\n" \
169" -u synonym for -p.\n" \
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170" --patch-with-raw\n" \
171" output both a patch and the diff-raw format.\n" \
d75f7952 172" --stat show diffstat instead of patch.\n" \
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173" --patch-with-stat\n" \
174" output a patch and prepend its diffstat.\n" \
8082d8d3 175" --name-only show only names of changed files.\n" \
946f5f7c 176" --name-status show names and status of changed files.\n" \
47dd0d59 177" --full-index show full object name on index lines.\n" \
913419fc 178" --abbrev=<n> abbreviate object names in diff-tree header and diff-raw.\n" \
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179" -R swap input file pairs.\n" \
180" -B detect complete rewrites.\n" \
181" -M detect renames.\n" \
182" -C detect copies.\n" \
dda2d79a 183" --find-copies-harder\n" \
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184" try unchanged files as candidate for copy detection.\n" \
185" -l<n> limit rename attempts up to <n> paths.\n" \
186" -O<file> reorder diffs according to the <file>.\n" \
187" -S<string> find filepair whose only one side contains the string.\n" \
dda2d79a 188" --pickaxe-all\n" \
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189" show all files diff when -S is used and hit is found.\n" \
190" -a --text treat all files as text.\n"
dda2d79a 191
38c6f780 192extern int diff_queue_is_empty(void);
6b5ee137 193extern void diff_flush(struct diff_options*);
86436c28 194
e7baa4f4 195/* diff-raw status letters */
ca8c9156 196#define DIFF_STATUS_ADDED 'A'
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197#define DIFF_STATUS_COPIED 'C'
198#define DIFF_STATUS_DELETED 'D'
199#define DIFF_STATUS_MODIFIED 'M'
200#define DIFF_STATUS_RENAMED 'R'
201#define DIFF_STATUS_TYPE_CHANGED 'T'
202#define DIFF_STATUS_UNKNOWN 'X'
203#define DIFF_STATUS_UNMERGED 'U'
204
205/* these are not diff-raw status letters proper, but used by
206 * diffcore-filter insn to specify additional restrictions.
207 */
0b34379a 208#define DIFF_STATUS_FILTER_AON '*'
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209#define DIFF_STATUS_FILTER_BROKEN 'B'
210
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211extern const char *diff_unique_abbrev(const unsigned char *, int);
212
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213extern int run_diff_files(struct rev_info *revs, int silent_on_removed);
214
5c21ac0e 215extern int run_diff_index(struct rev_info *revs, int cached);
e09ad6e1 216
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217extern int diff_flush_patch_id(struct diff_options *, unsigned char *);
218
86436c28 219#endif /* DIFF_H */