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Commit | Line | Data |
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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" |
64acde94 | 8 | #include "pathspec.h" |
1ff57c13 | 9 | #include "object.h" |
50f9a858 | 10 | |
91539833 | 11 | struct rev_info; |
ac1b3d12 | 12 | struct diff_options; |
04245581 | 13 | struct diff_queue_struct; |
a3c158d4 | 14 | struct strbuf; |
a788d7d5 AB |
15 | struct diff_filespec; |
16 | struct userdiff_driver; | |
0041f09d | 17 | struct sha1_array; |
82889295 | 18 | struct commit; |
72441af7 KS |
19 | struct combine_diff_path; |
20 | ||
21 | typedef int (*pathchange_fn_t)(struct diff_options *options, | |
22 | struct combine_diff_path *path); | |
ac1b3d12 LT |
23 | |
24 | typedef void (*change_fn_t)(struct diff_options *options, | |
25 | unsigned old_mode, unsigned new_mode, | |
26 | const unsigned char *old_sha1, | |
27 | const unsigned char *new_sha1, | |
e5450100 | 28 | int old_sha1_valid, int new_sha1_valid, |
e3d42c47 JL |
29 | const char *fullpath, |
30 | unsigned old_dirty_submodule, unsigned new_dirty_submodule); | |
ac1b3d12 LT |
31 | |
32 | typedef void (*add_remove_fn_t)(struct diff_options *options, | |
33 | int addremove, unsigned mode, | |
34 | const unsigned char *sha1, | |
e5450100 | 35 | int sha1_valid, |
e3d42c47 | 36 | const char *fullpath, unsigned dirty_submodule); |
ac1b3d12 | 37 | |
04245581 JK |
38 | typedef void (*diff_format_fn_t)(struct diff_queue_struct *q, |
39 | struct diff_options *options, void *data); | |
40 | ||
a3c158d4 BY |
41 | typedef struct strbuf *(*diff_prefix_fn_t)(struct diff_options *opt, void *data); |
42 | ||
c6744349 TH |
43 | #define DIFF_FORMAT_RAW 0x0001 |
44 | #define DIFF_FORMAT_DIFFSTAT 0x0002 | |
74e2abe5 JH |
45 | #define DIFF_FORMAT_NUMSTAT 0x0004 |
46 | #define DIFF_FORMAT_SUMMARY 0x0008 | |
47 | #define DIFF_FORMAT_PATCH 0x0010 | |
ebd124c6 | 48 | #define DIFF_FORMAT_SHORTSTAT 0x0020 |
7df7c019 | 49 | #define DIFF_FORMAT_DIRSTAT 0x0040 |
c6744349 TH |
50 | |
51 | /* These override all above */ | |
74e2abe5 JH |
52 | #define DIFF_FORMAT_NAME 0x0100 |
53 | #define DIFF_FORMAT_NAME_STATUS 0x0200 | |
54 | #define DIFF_FORMAT_CHECKDIFF 0x0400 | |
c6744349 TH |
55 | |
56 | /* Same as output_format = 0 but we know that -s flag was given | |
57 | * and we should not give default value to output_format. | |
58 | */ | |
74e2abe5 | 59 | #define DIFF_FORMAT_NO_OUTPUT 0x0800 |
c6744349 | 60 | |
74e2abe5 | 61 | #define DIFF_FORMAT_CALLBACK 0x1000 |
04245581 | 62 | |
8f67f8ae PH |
63 | #define DIFF_OPT_RECURSIVE (1 << 0) |
64 | #define DIFF_OPT_TREE_IN_RECURSIVE (1 << 1) | |
65 | #define DIFF_OPT_BINARY (1 << 2) | |
66 | #define DIFF_OPT_TEXT (1 << 3) | |
67 | #define DIFF_OPT_FULL_INDEX (1 << 4) | |
68 | #define DIFF_OPT_SILENT_ON_REMOVE (1 << 5) | |
69 | #define DIFF_OPT_FIND_COPIES_HARDER (1 << 6) | |
70 | #define DIFF_OPT_FOLLOW_RENAMES (1 << 7) | |
90d43b07 | 71 | #define DIFF_OPT_RENAME_EMPTY (1 << 8) |
882749a0 | 72 | /* (1 << 9) unused */ |
8f67f8ae | 73 | #define DIFF_OPT_HAS_CHANGES (1 << 10) |
90b19941 | 74 | #define DIFF_OPT_QUICK (1 << 11) |
8f67f8ae PH |
75 | #define DIFF_OPT_NO_INDEX (1 << 12) |
76 | #define DIFF_OPT_ALLOW_EXTERNAL (1 << 13) | |
77 | #define DIFF_OPT_EXIT_WITH_STATUS (1 << 14) | |
78 | #define DIFF_OPT_REVERSE_DIFF (1 << 15) | |
62c64895 | 79 | #define DIFF_OPT_CHECK_FAILED (1 << 16) |
cd676a51 | 80 | #define DIFF_OPT_RELATIVE_NAME (1 << 17) |
50fd9bd8 | 81 | #define DIFF_OPT_IGNORE_SUBMODULES (1 << 18) |
f88d225f | 82 | #define DIFF_OPT_DIRSTAT_CUMULATIVE (1 << 19) |
fd33777b | 83 | #define DIFF_OPT_DIRSTAT_BY_FILE (1 << 20) |
c7534ef4 | 84 | #define DIFF_OPT_ALLOW_TEXTCONV (1 << 21) |
f245194f | 85 | #define DIFF_OPT_DIFF_FROM_CONTENTS (1 << 22) |
752c0c24 | 86 | #define DIFF_OPT_SUBMODULE_LOG (1 << 23) |
9297f77e | 87 | #define DIFF_OPT_DIRTY_SUBMODULES (1 << 24) |
3bfc4504 | 88 | #define DIFF_OPT_IGNORE_UNTRACKED_IN_SUBMODULES (1 << 25) |
4af574db | 89 | #define DIFF_OPT_IGNORE_DIRTY_SUBMODULES (1 << 26) |
aee9c7d6 | 90 | #define DIFF_OPT_OVERRIDE_SUBMODULE_CONFIG (1 << 27) |
1c57a627 | 91 | #define DIFF_OPT_DIRSTAT_BY_LINE (1 << 28) |
14937c2c | 92 | #define DIFF_OPT_FUNCCONTEXT (1 << 29) |
accccde4 | 93 | #define DIFF_OPT_PICKAXE_IGNORE_CASE (1 << 30) |
9a93c668 | 94 | #define DIFF_OPT_DEFAULT_FOLLOW_RENAMES (1U << 31) |
752c0c24 | 95 | |
8f67f8ae | 96 | #define DIFF_OPT_TST(opts, flag) ((opts)->flags & DIFF_OPT_##flag) |
6c374008 JH |
97 | #define DIFF_OPT_TOUCHED(opts, flag) ((opts)->touched_flags & DIFF_OPT_##flag) |
98 | #define DIFF_OPT_SET(opts, flag) (((opts)->flags |= DIFF_OPT_##flag),((opts)->touched_flags |= DIFF_OPT_##flag)) | |
99 | #define DIFF_OPT_CLR(opts, flag) (((opts)->flags &= ~DIFF_OPT_##flag),((opts)->touched_flags |= DIFF_OPT_##flag)) | |
628d5c2b KC |
100 | #define DIFF_XDL_TST(opts, flag) ((opts)->xdl_opts & XDF_##flag) |
101 | #define DIFF_XDL_SET(opts, flag) ((opts)->xdl_opts |= XDF_##flag) | |
102 | #define DIFF_XDL_CLR(opts, flag) ((opts)->xdl_opts &= ~XDF_##flag) | |
8f67f8ae | 103 | |
307ab20b JH |
104 | #define DIFF_WITH_ALG(opts, flag) (((opts)->xdl_opts & ~XDF_DIFF_ALGORITHM_MASK) | XDF_##flag) |
105 | ||
882749a0 TR |
106 | enum diff_words_type { |
107 | DIFF_WORDS_NONE = 0, | |
108 | DIFF_WORDS_PORCELAIN, | |
109 | DIFF_WORDS_PLAIN, | |
110 | DIFF_WORDS_COLOR | |
111 | }; | |
112 | ||
6b5ee137 | 113 | struct diff_options { |
6b5ee137 JH |
114 | const char *orderfile; |
115 | const char *pickaxe; | |
2f3f8b21 | 116 | const char *single_follow; |
eab9a40b | 117 | const char *a_prefix, *b_prefix; |
8f67f8ae | 118 | unsigned flags; |
6c374008 | 119 | unsigned touched_flags; |
1ecc1cbd JH |
120 | |
121 | /* diff-filter bits */ | |
122 | unsigned int filter; | |
123 | ||
f1c96261 | 124 | int use_color; |
ee1e5412 | 125 | int context; |
6d0e674a | 126 | int interhunkcontext; |
6b5ee137 JH |
127 | int break_opt; |
128 | int detect_rename; | |
467ddc14 | 129 | int irreversible_delete; |
fb13227e | 130 | int skip_stat_unmatch; |
6b5ee137 JH |
131 | int line_termination; |
132 | int output_format; | |
133 | int pickaxe_opts; | |
134 | int rename_score; | |
8082d8d3 | 135 | int rename_limit; |
bf0ab10f | 136 | int needed_rename_limit; |
f31027c9 | 137 | int degraded_cc_to_c; |
3ac942d4 | 138 | int show_rename_progress; |
712d2c7d | 139 | int dirstat_permille; |
6b5ee137 | 140 | int setup; |
47dd0d59 | 141 | int abbrev; |
b8767f79 JH |
142 | /* white-space error highlighting */ |
143 | #define WSEH_NEW 1 | |
144 | #define WSEH_CONTEXT 2 | |
145 | #define WSEH_OLD 4 | |
146 | unsigned ws_error_highlight; | |
cd676a51 JH |
147 | const char *prefix; |
148 | int prefix_length; | |
698ce6f8 | 149 | const char *stat_sep; |
0d21efa5 | 150 | long xdl_opts; |
ac1b3d12 | 151 | |
a2540023 JH |
152 | int stat_width; |
153 | int stat_name_width; | |
969fe57b | 154 | int stat_graph_width; |
808e1db2 | 155 | int stat_count; |
2b6a5417 | 156 | const char *word_regex; |
882749a0 | 157 | enum diff_words_type word_diff; |
a2540023 | 158 | |
34a5e1a2 JS |
159 | /* this is set by diffcore for DIFF_FORMAT_PATCH */ |
160 | int found_changes; | |
161 | ||
44c48a90 JH |
162 | /* to support internal diff recursion by --follow hack*/ |
163 | int found_follow; | |
164 | ||
6c374008 JH |
165 | void (*set_default)(struct diff_options *); |
166 | ||
c0c77734 DB |
167 | FILE *file; |
168 | int close_file; | |
169 | ||
66f13625 | 170 | struct pathspec pathspec; |
72441af7 | 171 | pathchange_fn_t pathchange; |
ac1b3d12 LT |
172 | change_fn_t change; |
173 | add_remove_fn_t add_remove; | |
04245581 JK |
174 | diff_format_fn_t format_callback; |
175 | void *format_callback_data; | |
a3c158d4 | 176 | diff_prefix_fn_t output_prefix; |
5e71a84a | 177 | int output_prefix_length; |
a3c158d4 | 178 | void *output_prefix_data; |
ee7fb0b1 ZK |
179 | |
180 | int diff_path_counter; | |
6b5ee137 JH |
181 | }; |
182 | ||
ce436973 JK |
183 | enum color_diff { |
184 | DIFF_RESET = 0, | |
8dbf3eb6 | 185 | DIFF_CONTEXT = 1, |
ce436973 JK |
186 | DIFF_METAINFO = 2, |
187 | DIFF_FRAGINFO = 3, | |
188 | DIFF_FILE_OLD = 4, | |
189 | DIFF_FILE_NEW = 5, | |
190 | DIFF_COMMIT = 6, | |
448c3ef1 | 191 | DIFF_WHITESPACE = 7, |
4b05548f | 192 | DIFF_FUNCINFO = 8 |
ce436973 JK |
193 | }; |
194 | const char *diff_get_color(int diff_use_color, enum color_diff ix); | |
8f67f8ae | 195 | #define diff_get_color_opt(o, ix) \ |
f1c96261 | 196 | diff_get_color((o)->use_color, ix) |
8f67f8ae | 197 | |
ce436973 | 198 | |
f1922234 JK |
199 | const char *diff_line_prefix(struct diff_options *); |
200 | ||
201 | ||
698ce6f8 JS |
202 | extern const char mime_boundary_leader[]; |
203 | ||
72441af7 KS |
204 | extern struct combine_diff_path *diff_tree_paths( |
205 | struct combine_diff_path *p, const unsigned char *sha1, | |
206 | const unsigned char **parent_sha1, int nparent, | |
207 | struct strbuf *base, struct diff_options *opt); | |
ac1b3d12 LT |
208 | extern int diff_tree_sha1(const unsigned char *old, const unsigned char *new, |
209 | const char *base, struct diff_options *opt); | |
2b60356d RS |
210 | extern int diff_root_tree_sha1(const unsigned char *new, const char *base, |
211 | struct diff_options *opt); | |
ac1b3d12 | 212 | |
ea726d02 JH |
213 | struct combine_diff_path { |
214 | struct combine_diff_path *next; | |
ea726d02 | 215 | char *path; |
2454c962 | 216 | unsigned int mode; |
1ff57c13 | 217 | struct object_id oid; |
2454c962 | 218 | struct combine_diff_parent { |
d416df88 | 219 | char status; |
2454c962 | 220 | unsigned int mode; |
1ff57c13 | 221 | struct object_id oid; |
2454c962 | 222 | } parent[FLEX_ARRAY]; |
ea726d02 | 223 | }; |
2454c962 | 224 | #define combine_diff_path_size(n, l) \ |
5b442c4f JK |
225 | st_add4(sizeof(struct combine_diff_path), (l), 1, \ |
226 | st_mult(sizeof(struct combine_diff_parent), (n))) | |
ea726d02 | 227 | |
91539833 LT |
228 | extern void show_combined_diff(struct combine_diff_path *elem, int num_parent, |
229 | int dense, struct rev_info *); | |
ea726d02 | 230 | |
0041f09d | 231 | extern void diff_tree_combined(const unsigned char *sha1, const struct sha1_array *parents, int dense, struct rev_info *rev); |
0fe7c1de | 232 | |
82889295 | 233 | extern void diff_tree_combined_merge(const struct commit *commit, int dense, struct rev_info *rev); |
af3feefa | 234 | |
a5a818ee JH |
235 | void diff_set_mnemonic_prefix(struct diff_options *options, const char *a, const char *b); |
236 | ||
28b9264d JH |
237 | extern int diff_can_quit_early(struct diff_options *); |
238 | ||
6b5ee137 JH |
239 | extern void diff_addremove(struct diff_options *, |
240 | int addremove, | |
77eb2720 JH |
241 | unsigned mode, |
242 | const unsigned char *sha1, | |
e5450100 | 243 | int sha1_valid, |
e3d42c47 | 244 | const char *fullpath, unsigned dirty_submodule); |
77eb2720 | 245 | |
6b5ee137 JH |
246 | extern void diff_change(struct diff_options *, |
247 | unsigned mode1, unsigned mode2, | |
248 | const unsigned char *sha1, | |
249 | const unsigned char *sha2, | |
e5450100 JK |
250 | int sha1_valid, |
251 | int sha2_valid, | |
e3d42c47 JL |
252 | const char *fullpath, |
253 | unsigned dirty_submodule1, unsigned dirty_submodule2); | |
77eb2720 | 254 | |
fa7b2908 | 255 | extern struct diff_filepair *diff_unmerge(struct diff_options *, const char *path); |
77eb2720 | 256 | |
19feebc8 | 257 | #define DIFF_SETUP_REVERSE 1 |
f0c6b2a2 JH |
258 | #define DIFF_SETUP_USE_CACHE 2 |
259 | #define DIFF_SETUP_USE_SIZE_CACHE 4 | |
ce240675 | 260 | |
dea007fb | 261 | /* |
b0d12fc9 | 262 | * Poor man's alternative to parse-option, to allow both stuck form |
dea007fb MM |
263 | * (--option=value) and separate form (--option value). |
264 | */ | |
265 | extern int parse_long_opt(const char *opt, const char **argv, | |
266 | const char **optarg); | |
267 | ||
ef90d6d4 JS |
268 | extern int git_diff_basic_config(const char *var, const char *value, void *cb); |
269 | extern int git_diff_ui_config(const char *var, const char *value, void *cb); | |
6b5ee137 | 270 | extern void diff_setup(struct diff_options *); |
a97262c6 | 271 | extern int diff_opt_parse(struct diff_options *, const char **, int, const char *); |
28452655 | 272 | extern void diff_setup_done(struct diff_options *); |
86436c28 | 273 | |
6b14d7fa JH |
274 | #define DIFF_DETECT_RENAME 1 |
275 | #define DIFF_DETECT_COPY 2 | |
276 | ||
367cec1c | 277 | #define DIFF_PICKAXE_ALL 1 |
d01d8c67 | 278 | #define DIFF_PICKAXE_REGEX 2 |
f345b0a0 | 279 | |
f506b8e8 JH |
280 | #define DIFF_PICKAXE_KIND_S 4 /* traditional plumbing counter */ |
281 | #define DIFF_PICKAXE_KIND_G 8 /* grep in the patch */ | |
282 | ||
6b5ee137 | 283 | extern void diffcore_std(struct diff_options *); |
730f7284 | 284 | extern void diffcore_fix_diff_index(struct diff_options *); |
f2ce9fde | 285 | |
dda2d79a JH |
286 | #define COMMON_DIFF_OPTIONS_HELP \ |
287 | "\ncommon diff options:\n" \ | |
8082d8d3 JH |
288 | " -z output diff-raw with lines terminated with NUL.\n" \ |
289 | " -p output patch format.\n" \ | |
290 | " -u synonym for -p.\n" \ | |
5c91da25 PB |
291 | " --patch-with-raw\n" \ |
292 | " output both a patch and the diff-raw format.\n" \ | |
d75f7952 | 293 | " --stat show diffstat instead of patch.\n" \ |
74e2abe5 | 294 | " --numstat show numeric diffstat instead of patch.\n" \ |
29353273 JS |
295 | " --patch-with-stat\n" \ |
296 | " output a patch and prepend its diffstat.\n" \ | |
8082d8d3 | 297 | " --name-only show only names of changed files.\n" \ |
946f5f7c | 298 | " --name-status show names and status of changed files.\n" \ |
47dd0d59 | 299 | " --full-index show full object name on index lines.\n" \ |
913419fc | 300 | " --abbrev=<n> abbreviate object names in diff-tree header and diff-raw.\n" \ |
8082d8d3 JH |
301 | " -R swap input file pairs.\n" \ |
302 | " -B detect complete rewrites.\n" \ | |
303 | " -M detect renames.\n" \ | |
304 | " -C detect copies.\n" \ | |
dda2d79a | 305 | " --find-copies-harder\n" \ |
8082d8d3 JH |
306 | " try unchanged files as candidate for copy detection.\n" \ |
307 | " -l<n> limit rename attempts up to <n> paths.\n" \ | |
308 | " -O<file> reorder diffs according to the <file>.\n" \ | |
309 | " -S<string> find filepair whose only one side contains the string.\n" \ | |
dda2d79a | 310 | " --pickaxe-all\n" \ |
ca49920f SF |
311 | " show all files diff when -S is used and hit is found.\n" \ |
312 | " -a --text treat all files as text.\n" | |
dda2d79a | 313 | |
38c6f780 | 314 | extern int diff_queue_is_empty(void); |
6b5ee137 | 315 | extern void diff_flush(struct diff_options*); |
f31027c9 | 316 | extern void diff_warn_rename_limit(const char *varname, int needed, int degraded_cc); |
86436c28 | 317 | |
e7baa4f4 | 318 | /* diff-raw status letters */ |
ca8c9156 | 319 | #define DIFF_STATUS_ADDED 'A' |
e7baa4f4 JH |
320 | #define DIFF_STATUS_COPIED 'C' |
321 | #define DIFF_STATUS_DELETED 'D' | |
322 | #define DIFF_STATUS_MODIFIED 'M' | |
323 | #define DIFF_STATUS_RENAMED 'R' | |
324 | #define DIFF_STATUS_TYPE_CHANGED 'T' | |
325 | #define DIFF_STATUS_UNKNOWN 'X' | |
326 | #define DIFF_STATUS_UNMERGED 'U' | |
327 | ||
328 | /* these are not diff-raw status letters proper, but used by | |
329 | * diffcore-filter insn to specify additional restrictions. | |
330 | */ | |
0b34379a | 331 | #define DIFF_STATUS_FILTER_AON '*' |
e7baa4f4 JH |
332 | #define DIFF_STATUS_FILTER_BROKEN 'B' |
333 | ||
47dd0d59 JH |
334 | extern const char *diff_unique_abbrev(const unsigned char *, int); |
335 | ||
4bd5b7da JH |
336 | /* do not report anything on removed paths */ |
337 | #define DIFF_SILENT_ON_REMOVED 01 | |
fb63d7f8 JH |
338 | /* report racily-clean paths as modified */ |
339 | #define DIFF_RACY_IS_MODIFIED 02 | |
4bd5b7da | 340 | extern int run_diff_files(struct rev_info *revs, unsigned int option); |
5c21ac0e | 341 | extern int run_diff_index(struct rev_info *revs, int cached); |
e09ad6e1 | 342 | |
1cfe7733 | 343 | extern int do_diff_cache(const unsigned char *, struct diff_options *); |
fcb3d0ad JS |
344 | extern int diff_flush_patch_id(struct diff_options *, unsigned char *); |
345 | ||
da31b358 JH |
346 | extern int diff_result_code(struct diff_options *, int); |
347 | ||
e5f7a5d1 | 348 | extern void diff_no_index(struct rev_info *, int, const char **); |
0569e9b8 | 349 | |
75f3ff2e SB |
350 | extern int index_differs_from(const char *def, int diff_flags); |
351 | ||
a64e6a44 JK |
352 | /* |
353 | * Fill the contents of the filespec "df", respecting any textconv defined by | |
354 | * its userdiff driver. The "driver" parameter must come from a | |
355 | * previous call to get_textconv(), and therefore should either be NULL or have | |
356 | * textconv enabled. | |
357 | * | |
358 | * Note that the memory ownership of the resulting buffer depends on whether | |
359 | * the driver field is NULL. If it is, then the memory belongs to the filespec | |
360 | * struct. If it is non-NULL, then "outbuf" points to a newly allocated buffer | |
361 | * that should be freed by the caller. | |
362 | */ | |
a788d7d5 AB |
363 | extern size_t fill_textconv(struct userdiff_driver *driver, |
364 | struct diff_filespec *df, | |
365 | char **outbuf); | |
366 | ||
a64e6a44 JK |
367 | /* |
368 | * Look up the userdiff driver for the given filespec, and return it if | |
369 | * and only if it has textconv enabled (otherwise return NULL). The result | |
370 | * can be passed to fill_textconv(). | |
371 | */ | |
a788d7d5 AB |
372 | extern struct userdiff_driver *get_textconv(struct diff_filespec *one); |
373 | ||
10ae7526 KB |
374 | extern int parse_rename_score(const char **cp_p); |
375 | ||
07924d4d MP |
376 | extern long parse_algorithm_value(const char *value); |
377 | ||
7f814632 NTND |
378 | extern int print_stat_summary(FILE *fp, int files, |
379 | int insertions, int deletions); | |
4914c962 | 380 | extern void setup_diff_pager(struct diff_options *); |
7f814632 | 381 | |
86436c28 | 382 | #endif /* DIFF_H */ |