Allow specifying --dirstat cut-off percentage as a floating point number
[git/git.git] / diff.h
CommitLineData
be3cfa85
JH
1/*
2 * Copyright (C) 2005 Junio C Hamano
3 */
86436c28
JH
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;
a3c158d4 12struct strbuf;
a788d7d5
AB
13struct diff_filespec;
14struct userdiff_driver;
ac1b3d12
LT
15
16typedef void (*change_fn_t)(struct diff_options *options,
17 unsigned old_mode, unsigned new_mode,
18 const unsigned char *old_sha1,
19 const unsigned char *new_sha1,
e3d42c47
JL
20 const char *fullpath,
21 unsigned old_dirty_submodule, unsigned new_dirty_submodule);
ac1b3d12
LT
22
23typedef void (*add_remove_fn_t)(struct diff_options *options,
24 int addremove, unsigned mode,
25 const unsigned char *sha1,
e3d42c47 26 const char *fullpath, unsigned dirty_submodule);
ac1b3d12 27
04245581
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28typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
29 struct diff_options *options, void *data);
30
a3c158d4
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31typedef struct strbuf *(*diff_prefix_fn_t)(struct diff_options *opt, void *data);
32
c6744349
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33#define DIFF_FORMAT_RAW 0x0001
34#define DIFF_FORMAT_DIFFSTAT 0x0002
74e2abe5
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35#define DIFF_FORMAT_NUMSTAT 0x0004
36#define DIFF_FORMAT_SUMMARY 0x0008
37#define DIFF_FORMAT_PATCH 0x0010
ebd124c6 38#define DIFF_FORMAT_SHORTSTAT 0x0020
7df7c019 39#define DIFF_FORMAT_DIRSTAT 0x0040
c6744349
TH
40
41/* These override all above */
74e2abe5
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42#define DIFF_FORMAT_NAME 0x0100
43#define DIFF_FORMAT_NAME_STATUS 0x0200
44#define DIFF_FORMAT_CHECKDIFF 0x0400
c6744349
TH
45
46/* Same as output_format = 0 but we know that -s flag was given
47 * and we should not give default value to output_format.
48 */
74e2abe5 49#define DIFF_FORMAT_NO_OUTPUT 0x0800
c6744349 50
74e2abe5 51#define DIFF_FORMAT_CALLBACK 0x1000
04245581 52
8f67f8ae
PH
53#define DIFF_OPT_RECURSIVE (1 << 0)
54#define DIFF_OPT_TREE_IN_RECURSIVE (1 << 1)
55#define DIFF_OPT_BINARY (1 << 2)
56#define DIFF_OPT_TEXT (1 << 3)
57#define DIFF_OPT_FULL_INDEX (1 << 4)
58#define DIFF_OPT_SILENT_ON_REMOVE (1 << 5)
59#define DIFF_OPT_FIND_COPIES_HARDER (1 << 6)
60#define DIFF_OPT_FOLLOW_RENAMES (1 << 7)
61#define DIFF_OPT_COLOR_DIFF (1 << 8)
882749a0 62/* (1 << 9) unused */
8f67f8ae 63#define DIFF_OPT_HAS_CHANGES (1 << 10)
90b19941 64#define DIFF_OPT_QUICK (1 << 11)
8f67f8ae
PH
65#define DIFF_OPT_NO_INDEX (1 << 12)
66#define DIFF_OPT_ALLOW_EXTERNAL (1 << 13)
67#define DIFF_OPT_EXIT_WITH_STATUS (1 << 14)
68#define DIFF_OPT_REVERSE_DIFF (1 << 15)
62c64895 69#define DIFF_OPT_CHECK_FAILED (1 << 16)
cd676a51 70#define DIFF_OPT_RELATIVE_NAME (1 << 17)
50fd9bd8 71#define DIFF_OPT_IGNORE_SUBMODULES (1 << 18)
f88d225f 72#define DIFF_OPT_DIRSTAT_CUMULATIVE (1 << 19)
fd33777b 73#define DIFF_OPT_DIRSTAT_BY_FILE (1 << 20)
c7534ef4 74#define DIFF_OPT_ALLOW_TEXTCONV (1 << 21)
f245194f 75#define DIFF_OPT_DIFF_FROM_CONTENTS (1 << 22)
752c0c24 76#define DIFF_OPT_SUBMODULE_LOG (1 << 23)
9297f77e 77#define DIFF_OPT_DIRTY_SUBMODULES (1 << 24)
3bfc4504 78#define DIFF_OPT_IGNORE_UNTRACKED_IN_SUBMODULES (1 << 25)
4af574db 79#define DIFF_OPT_IGNORE_DIRTY_SUBMODULES (1 << 26)
aee9c7d6 80#define DIFF_OPT_OVERRIDE_SUBMODULE_CONFIG (1 << 27)
752c0c24 81
8f67f8ae
PH
82#define DIFF_OPT_TST(opts, flag) ((opts)->flags & DIFF_OPT_##flag)
83#define DIFF_OPT_SET(opts, flag) ((opts)->flags |= DIFF_OPT_##flag)
84#define DIFF_OPT_CLR(opts, flag) ((opts)->flags &= ~DIFF_OPT_##flag)
628d5c2b
KC
85#define DIFF_XDL_TST(opts, flag) ((opts)->xdl_opts & XDF_##flag)
86#define DIFF_XDL_SET(opts, flag) ((opts)->xdl_opts |= XDF_##flag)
87#define DIFF_XDL_CLR(opts, flag) ((opts)->xdl_opts &= ~XDF_##flag)
8f67f8ae 88
882749a0
TR
89enum diff_words_type {
90 DIFF_WORDS_NONE = 0,
91 DIFF_WORDS_PORCELAIN,
92 DIFF_WORDS_PLAIN,
93 DIFF_WORDS_COLOR
94};
95
6b5ee137 96struct diff_options {
6b5ee137
JH
97 const char *filter;
98 const char *orderfile;
99 const char *pickaxe;
2f3f8b21 100 const char *single_follow;
eab9a40b 101 const char *a_prefix, *b_prefix;
8f67f8ae 102 unsigned flags;
ee1e5412 103 int context;
6d0e674a 104 int interhunkcontext;
6b5ee137
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105 int break_opt;
106 int detect_rename;
467ddc14 107 int irreversible_delete;
fb13227e 108 int skip_stat_unmatch;
6b5ee137
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109 int line_termination;
110 int output_format;
111 int pickaxe_opts;
112 int rename_score;
8082d8d3 113 int rename_limit;
bf0ab10f 114 int needed_rename_limit;
f31027c9 115 int degraded_cc_to_c;
3ac942d4 116 int show_rename_progress;
712d2c7d 117 int dirstat_permille;
6b5ee137 118 int setup;
47dd0d59 119 int abbrev;
cd676a51
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120 const char *prefix;
121 int prefix_length;
698ce6f8 122 const char *stat_sep;
0d21efa5 123 long xdl_opts;
ac1b3d12 124
a2540023
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125 int stat_width;
126 int stat_name_width;
2b6a5417 127 const char *word_regex;
882749a0 128 enum diff_words_type word_diff;
a2540023 129
34a5e1a2
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130 /* this is set by diffcore for DIFF_FORMAT_PATCH */
131 int found_changes;
132
44c48a90
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133 /* to support internal diff recursion by --follow hack*/
134 int found_follow;
135
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136 FILE *file;
137 int close_file;
138
66f13625 139 struct pathspec pathspec;
ac1b3d12
LT
140 change_fn_t change;
141 add_remove_fn_t add_remove;
04245581
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142 diff_format_fn_t format_callback;
143 void *format_callback_data;
a3c158d4
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144 diff_prefix_fn_t output_prefix;
145 void *output_prefix_data;
6b5ee137
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146};
147
ce436973
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148enum color_diff {
149 DIFF_RESET = 0,
150 DIFF_PLAIN = 1,
151 DIFF_METAINFO = 2,
152 DIFF_FRAGINFO = 3,
153 DIFF_FILE_OLD = 4,
154 DIFF_FILE_NEW = 5,
155 DIFF_COMMIT = 6,
448c3ef1 156 DIFF_WHITESPACE = 7,
4b05548f 157 DIFF_FUNCINFO = 8
ce436973
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158};
159const char *diff_get_color(int diff_use_color, enum color_diff ix);
8f67f8ae
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160#define diff_get_color_opt(o, ix) \
161 diff_get_color(DIFF_OPT_TST((o), COLOR_DIFF), ix)
162
ce436973 163
698ce6f8
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164extern const char mime_boundary_leader[];
165
a8baa7b9
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166extern void diff_tree_setup_paths(const char **paths, struct diff_options *);
167extern void diff_tree_release_paths(struct diff_options *);
ac1b3d12
LT
168extern int diff_tree(struct tree_desc *t1, struct tree_desc *t2,
169 const char *base, struct diff_options *opt);
170extern int diff_tree_sha1(const unsigned char *old, const unsigned char *new,
171 const char *base, struct diff_options *opt);
2b60356d
RS
172extern int diff_root_tree_sha1(const unsigned char *new, const char *base,
173 struct diff_options *opt);
ac1b3d12 174
ea726d02
JH
175struct combine_diff_path {
176 struct combine_diff_path *next;
177 int len;
178 char *path;
2454c962 179 unsigned int mode;
ea726d02 180 unsigned char sha1[20];
2454c962 181 struct combine_diff_parent {
d416df88 182 char status;
2454c962
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183 unsigned int mode;
184 unsigned char sha1[20];
185 } parent[FLEX_ARRAY];
ea726d02 186};
2454c962
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187#define combine_diff_path_size(n, l) \
188 (sizeof(struct combine_diff_path) + \
189 sizeof(struct combine_diff_parent) * (n) + (l) + 1)
ea726d02 190
91539833
LT
191extern void show_combined_diff(struct combine_diff_path *elem, int num_parent,
192 int dense, struct rev_info *);
ea726d02 193
0fe7c1de
JH
194extern void diff_tree_combined(const unsigned char *sha1, const unsigned char parent[][20], int num_parent, int dense, struct rev_info *rev);
195
91539833 196extern void diff_tree_combined_merge(const unsigned char *sha1, int, struct rev_info *);
af3feefa 197
a5a818ee
JH
198void diff_set_mnemonic_prefix(struct diff_options *options, const char *a, const char *b);
199
6b5ee137
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200extern void diff_addremove(struct diff_options *,
201 int addremove,
77eb2720
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202 unsigned mode,
203 const unsigned char *sha1,
e3d42c47 204 const char *fullpath, unsigned dirty_submodule);
77eb2720 205
6b5ee137
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206extern void diff_change(struct diff_options *,
207 unsigned mode1, unsigned mode2,
208 const unsigned char *sha1,
209 const unsigned char *sha2,
e3d42c47
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210 const char *fullpath,
211 unsigned dirty_submodule1, unsigned dirty_submodule2);
77eb2720 212
6b5ee137 213extern void diff_unmerge(struct diff_options *,
e9c84099
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214 const char *path,
215 unsigned mode,
216 const unsigned char *sha1);
77eb2720 217
19feebc8 218#define DIFF_SETUP_REVERSE 1
f0c6b2a2
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219#define DIFF_SETUP_USE_CACHE 2
220#define DIFF_SETUP_USE_SIZE_CACHE 4
ce240675 221
dea007fb
MM
222/*
223 * Poor man's alternative to parse-option, to allow both sticked form
224 * (--option=value) and separate form (--option value).
225 */
226extern int parse_long_opt(const char *opt, const char **argv,
227 const char **optarg);
228
ef90d6d4
JS
229extern int git_diff_basic_config(const char *var, const char *value, void *cb);
230extern int git_diff_ui_config(const char *var, const char *value, void *cb);
6b2f2d98 231extern int diff_use_color_default;
6b5ee137
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232extern void diff_setup(struct diff_options *);
233extern int diff_opt_parse(struct diff_options *, const char **, int);
234extern int diff_setup_done(struct diff_options *);
86436c28 235
6b14d7fa
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236#define DIFF_DETECT_RENAME 1
237#define DIFF_DETECT_COPY 2
238
367cec1c 239#define DIFF_PICKAXE_ALL 1
d01d8c67 240#define DIFF_PICKAXE_REGEX 2
f345b0a0 241
f506b8e8
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242#define DIFF_PICKAXE_KIND_S 4 /* traditional plumbing counter */
243#define DIFF_PICKAXE_KIND_G 8 /* grep in the patch */
244
6b5ee137 245extern void diffcore_std(struct diff_options *);
730f7284 246extern void diffcore_fix_diff_index(struct diff_options *);
f2ce9fde 247
dda2d79a
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248#define COMMON_DIFF_OPTIONS_HELP \
249"\ncommon diff options:\n" \
8082d8d3
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250" -z output diff-raw with lines terminated with NUL.\n" \
251" -p output patch format.\n" \
252" -u synonym for -p.\n" \
5c91da25
PB
253" --patch-with-raw\n" \
254" output both a patch and the diff-raw format.\n" \
d75f7952 255" --stat show diffstat instead of patch.\n" \
74e2abe5 256" --numstat show numeric diffstat instead of patch.\n" \
29353273
JS
257" --patch-with-stat\n" \
258" output a patch and prepend its diffstat.\n" \
8082d8d3 259" --name-only show only names of changed files.\n" \
946f5f7c 260" --name-status show names and status of changed files.\n" \
47dd0d59 261" --full-index show full object name on index lines.\n" \
913419fc 262" --abbrev=<n> abbreviate object names in diff-tree header and diff-raw.\n" \
8082d8d3
JH
263" -R swap input file pairs.\n" \
264" -B detect complete rewrites.\n" \
265" -M detect renames.\n" \
266" -C detect copies.\n" \
dda2d79a 267" --find-copies-harder\n" \
8082d8d3
JH
268" try unchanged files as candidate for copy detection.\n" \
269" -l<n> limit rename attempts up to <n> paths.\n" \
270" -O<file> reorder diffs according to the <file>.\n" \
271" -S<string> find filepair whose only one side contains the string.\n" \
dda2d79a 272" --pickaxe-all\n" \
ca49920f
SF
273" show all files diff when -S is used and hit is found.\n" \
274" -a --text treat all files as text.\n"
dda2d79a 275
38c6f780 276extern int diff_queue_is_empty(void);
6b5ee137 277extern void diff_flush(struct diff_options*);
f31027c9 278extern void diff_warn_rename_limit(const char *varname, int needed, int degraded_cc);
86436c28 279
e7baa4f4 280/* diff-raw status letters */
ca8c9156 281#define DIFF_STATUS_ADDED 'A'
e7baa4f4
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282#define DIFF_STATUS_COPIED 'C'
283#define DIFF_STATUS_DELETED 'D'
284#define DIFF_STATUS_MODIFIED 'M'
285#define DIFF_STATUS_RENAMED 'R'
286#define DIFF_STATUS_TYPE_CHANGED 'T'
287#define DIFF_STATUS_UNKNOWN 'X'
288#define DIFF_STATUS_UNMERGED 'U'
289
290/* these are not diff-raw status letters proper, but used by
291 * diffcore-filter insn to specify additional restrictions.
292 */
0b34379a 293#define DIFF_STATUS_FILTER_AON '*'
e7baa4f4
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294#define DIFF_STATUS_FILTER_BROKEN 'B'
295
47dd0d59
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296extern const char *diff_unique_abbrev(const unsigned char *, int);
297
4bd5b7da
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298/* do not report anything on removed paths */
299#define DIFF_SILENT_ON_REMOVED 01
fb63d7f8
JH
300/* report racily-clean paths as modified */
301#define DIFF_RACY_IS_MODIFIED 02
4bd5b7da 302extern int run_diff_files(struct rev_info *revs, unsigned int option);
5c21ac0e 303extern int run_diff_index(struct rev_info *revs, int cached);
e09ad6e1 304
1cfe7733 305extern int do_diff_cache(const unsigned char *, struct diff_options *);
fcb3d0ad
JS
306extern int diff_flush_patch_id(struct diff_options *, unsigned char *);
307
da31b358
JH
308extern int diff_result_code(struct diff_options *, int);
309
0569e9b8
JH
310extern void diff_no_index(struct rev_info *, int, const char **, int, const char *);
311
75f3ff2e
SB
312extern int index_differs_from(const char *def, int diff_flags);
313
a788d7d5
AB
314extern size_t fill_textconv(struct userdiff_driver *driver,
315 struct diff_filespec *df,
316 char **outbuf);
317
318extern struct userdiff_driver *get_textconv(struct diff_filespec *one);
319
10ae7526
KB
320extern int parse_rename_score(const char **cp_p);
321
86436c28 322#endif /* DIFF_H */