git-commit: allow -e option anywhere on command line
[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;
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10struct diff_options;
11
12typedef void (*change_fn_t)(struct diff_options *options,
13 unsigned old_mode, unsigned new_mode,
14 const unsigned char *old_sha1,
15 const unsigned char *new_sha1,
16 const char *base, const char *path);
17
18typedef void (*add_remove_fn_t)(struct diff_options *options,
19 int addremove, unsigned mode,
20 const unsigned char *sha1,
21 const char *base, const char *path);
22
6b5ee137 23struct diff_options {
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24 const char *filter;
25 const char *orderfile;
26 const char *pickaxe;
ac1b3d12 27 unsigned recursive:1,
86ff1d20 28 with_raw:1,
29353273 29 with_stat:1,
80b1e511 30 tree_in_recursive:1,
0660626c 31 binary:1,
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32 full_index:1,
33 silent_on_remove:1,
4bbd261b 34 find_copies_harder:1,
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35 summary:1,
36 color_diff:1;
ee1e5412 37 int context;
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38 int break_opt;
39 int detect_rename;
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40 int line_termination;
41 int output_format;
42 int pickaxe_opts;
43 int rename_score;
44 int reverse_diff;
8082d8d3 45 int rename_limit;
6b5ee137 46 int setup;
47dd0d59 47 int abbrev;
698ce6f8 48 const char *stat_sep;
ac1b3d12 49
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50 int nr_paths;
51 const char **paths;
52 int *pathlens;
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53 change_fn_t change;
54 add_remove_fn_t add_remove;
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55};
56
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57extern const char mime_boundary_leader[];
58
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59extern void diff_tree_setup_paths(const char **paths, struct diff_options *);
60extern void diff_tree_release_paths(struct diff_options *);
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61extern int diff_tree(struct tree_desc *t1, struct tree_desc *t2,
62 const char *base, struct diff_options *opt);
63extern int diff_tree_sha1(const unsigned char *old, const unsigned char *new,
64 const char *base, struct diff_options *opt);
65
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66struct combine_diff_path {
67 struct combine_diff_path *next;
68 int len;
69 char *path;
2454c962 70 unsigned int mode;
ea726d02 71 unsigned char sha1[20];
2454c962 72 struct combine_diff_parent {
d416df88 73 char status;
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74 unsigned int mode;
75 unsigned char sha1[20];
76 } parent[FLEX_ARRAY];
ea726d02 77};
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78#define combine_diff_path_size(n, l) \
79 (sizeof(struct combine_diff_path) + \
80 sizeof(struct combine_diff_parent) * (n) + (l) + 1)
ea726d02 81
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82extern void show_combined_diff(struct combine_diff_path *elem, int num_parent,
83 int dense, struct rev_info *);
ea726d02 84
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85extern void diff_tree_combined(const unsigned char *sha1, const unsigned char parent[][20], int num_parent, int dense, struct rev_info *rev);
86
91539833 87extern void diff_tree_combined_merge(const unsigned char *sha1, int, struct rev_info *);
af3feefa 88
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89extern void diff_addremove(struct diff_options *,
90 int addremove,
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91 unsigned mode,
92 const unsigned char *sha1,
93 const char *base,
94 const char *path);
95
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96extern void diff_change(struct diff_options *,
97 unsigned mode1, unsigned mode2,
98 const unsigned char *sha1,
99 const unsigned char *sha2,
100 const char *base, const char *path);
77eb2720 101
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102extern void diff_unmerge(struct diff_options *,
103 const char *path);
77eb2720 104
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105extern int diff_scoreopt_parse(const char *opt);
106
19feebc8 107#define DIFF_SETUP_REVERSE 1
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108#define DIFF_SETUP_USE_CACHE 2
109#define DIFF_SETUP_USE_SIZE_CACHE 4
ce240675 110
9ce392f4 111extern int git_diff_config(const char *var, const char *value);
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112extern void diff_setup(struct diff_options *);
113extern int diff_opt_parse(struct diff_options *, const char **, int);
114extern int diff_setup_done(struct diff_options *);
86436c28 115
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116#define DIFF_DETECT_RENAME 1
117#define DIFF_DETECT_COPY 2
118
367cec1c 119#define DIFF_PICKAXE_ALL 1
d01d8c67 120#define DIFF_PICKAXE_REGEX 2
f345b0a0 121
6b5ee137 122extern void diffcore_std(struct diff_options *);
f2ce9fde 123
6b5ee137 124extern void diffcore_std_no_resolve(struct diff_options *);
befe8639 125
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126#define COMMON_DIFF_OPTIONS_HELP \
127"\ncommon diff options:\n" \
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128" -z output diff-raw with lines terminated with NUL.\n" \
129" -p output patch format.\n" \
130" -u synonym for -p.\n" \
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131" --patch-with-raw\n" \
132" output both a patch and the diff-raw format.\n" \
d75f7952 133" --stat show diffstat instead of patch.\n" \
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134" --patch-with-stat\n" \
135" output a patch and prepend its diffstat.\n" \
8082d8d3 136" --name-only show only names of changed files.\n" \
946f5f7c 137" --name-status show names and status of changed files.\n" \
47dd0d59 138" --full-index show full object name on index lines.\n" \
913419fc 139" --abbrev=<n> abbreviate object names in diff-tree header and diff-raw.\n" \
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140" -R swap input file pairs.\n" \
141" -B detect complete rewrites.\n" \
142" -M detect renames.\n" \
143" -C detect copies.\n" \
dda2d79a 144" --find-copies-harder\n" \
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145" try unchanged files as candidate for copy detection.\n" \
146" -l<n> limit rename attempts up to <n> paths.\n" \
147" -O<file> reorder diffs according to the <file>.\n" \
148" -S<string> find filepair whose only one side contains the string.\n" \
dda2d79a 149" --pickaxe-all\n" \
8082d8d3 150" show all files diff when -S is used and hit is found.\n"
dda2d79a 151
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152extern int diff_queue_is_empty(void);
153
e68b6f15 154#define DIFF_FORMAT_RAW 1
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155#define DIFF_FORMAT_PATCH 2
156#define DIFF_FORMAT_NO_OUTPUT 3
52f28529 157#define DIFF_FORMAT_NAME 4
946f5f7c 158#define DIFF_FORMAT_NAME_STATUS 5
d75f7952 159#define DIFF_FORMAT_DIFFSTAT 6
88246898 160#define DIFF_FORMAT_CHECKDIFF 7
19feebc8 161
6b5ee137 162extern void diff_flush(struct diff_options*);
86436c28 163
e7baa4f4 164/* diff-raw status letters */
ca8c9156 165#define DIFF_STATUS_ADDED 'A'
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166#define DIFF_STATUS_COPIED 'C'
167#define DIFF_STATUS_DELETED 'D'
168#define DIFF_STATUS_MODIFIED 'M'
169#define DIFF_STATUS_RENAMED 'R'
170#define DIFF_STATUS_TYPE_CHANGED 'T'
171#define DIFF_STATUS_UNKNOWN 'X'
172#define DIFF_STATUS_UNMERGED 'U'
173
174/* these are not diff-raw status letters proper, but used by
175 * diffcore-filter insn to specify additional restrictions.
176 */
0b34379a 177#define DIFF_STATUS_FILTER_AON '*'
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178#define DIFF_STATUS_FILTER_BROKEN 'B'
179
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180extern const char *diff_unique_abbrev(const unsigned char *, int);
181
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182extern int run_diff_files(struct rev_info *revs, int silent_on_removed);
183
5c21ac0e 184extern int run_diff_index(struct rev_info *revs, int cached);
e09ad6e1 185
86436c28 186#endif /* DIFF_H */