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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" |
15af58c1 | 10 | #include "oidset.h" |
50f9a858 | 11 | |
91539833 | 12 | struct rev_info; |
ac1b3d12 | 13 | struct diff_options; |
04245581 | 14 | struct diff_queue_struct; |
a3c158d4 | 15 | struct strbuf; |
a788d7d5 AB |
16 | struct diff_filespec; |
17 | struct userdiff_driver; | |
910650d2 | 18 | struct oid_array; |
82889295 | 19 | struct commit; |
72441af7 KS |
20 | struct combine_diff_path; |
21 | ||
22 | typedef int (*pathchange_fn_t)(struct diff_options *options, | |
23 | struct combine_diff_path *path); | |
ac1b3d12 LT |
24 | |
25 | typedef void (*change_fn_t)(struct diff_options *options, | |
26 | unsigned old_mode, unsigned new_mode, | |
94a0097a BW |
27 | const struct object_id *old_oid, |
28 | const struct object_id *new_oid, | |
29 | int old_oid_valid, int new_oid_valid, | |
e3d42c47 JL |
30 | const char *fullpath, |
31 | unsigned old_dirty_submodule, unsigned new_dirty_submodule); | |
ac1b3d12 LT |
32 | |
33 | typedef void (*add_remove_fn_t)(struct diff_options *options, | |
34 | int addremove, unsigned mode, | |
c26022ea BW |
35 | const struct object_id *oid, |
36 | int oid_valid, | |
e3d42c47 | 37 | const char *fullpath, unsigned dirty_submodule); |
ac1b3d12 | 38 | |
04245581 JK |
39 | typedef void (*diff_format_fn_t)(struct diff_queue_struct *q, |
40 | struct diff_options *options, void *data); | |
41 | ||
a3c158d4 BY |
42 | typedef struct strbuf *(*diff_prefix_fn_t)(struct diff_options *opt, void *data); |
43 | ||
c6744349 TH |
44 | #define DIFF_FORMAT_RAW 0x0001 |
45 | #define DIFF_FORMAT_DIFFSTAT 0x0002 | |
74e2abe5 JH |
46 | #define DIFF_FORMAT_NUMSTAT 0x0004 |
47 | #define DIFF_FORMAT_SUMMARY 0x0008 | |
48 | #define DIFF_FORMAT_PATCH 0x0010 | |
ebd124c6 | 49 | #define DIFF_FORMAT_SHORTSTAT 0x0020 |
7df7c019 | 50 | #define DIFF_FORMAT_DIRSTAT 0x0040 |
c6744349 TH |
51 | |
52 | /* These override all above */ | |
74e2abe5 JH |
53 | #define DIFF_FORMAT_NAME 0x0100 |
54 | #define DIFF_FORMAT_NAME_STATUS 0x0200 | |
55 | #define DIFF_FORMAT_CHECKDIFF 0x0400 | |
c6744349 TH |
56 | |
57 | /* Same as output_format = 0 but we know that -s flag was given | |
58 | * and we should not give default value to output_format. | |
59 | */ | |
74e2abe5 | 60 | #define DIFF_FORMAT_NO_OUTPUT 0x0800 |
c6744349 | 61 | |
74e2abe5 | 62 | #define DIFF_FORMAT_CALLBACK 0x1000 |
04245581 | 63 | |
02f2f56b BW |
64 | #define DIFF_FLAGS_INIT { 0 } |
65 | struct diff_flags { | |
0d1e0e78 BW |
66 | unsigned recursive:1; |
67 | unsigned tree_in_recursive:1; | |
68 | unsigned binary:1; | |
69 | unsigned text:1; | |
70 | unsigned full_index:1; | |
71 | unsigned silent_on_remove:1; | |
72 | unsigned find_copies_harder:1; | |
73 | unsigned follow_renames:1; | |
74 | unsigned rename_empty:1; | |
75 | unsigned has_changes:1; | |
76 | unsigned quick:1; | |
77 | unsigned no_index:1; | |
78 | unsigned allow_external:1; | |
79 | unsigned exit_with_status:1; | |
80 | unsigned reverse_diff:1; | |
81 | unsigned check_failed:1; | |
82 | unsigned relative_name:1; | |
83 | unsigned ignore_submodules:1; | |
84 | unsigned dirstat_cumulative:1; | |
85 | unsigned dirstat_by_file:1; | |
86 | unsigned allow_textconv:1; | |
87 | unsigned textconv_set_via_cmdline:1; | |
88 | unsigned diff_from_contents:1; | |
89 | unsigned dirty_submodules:1; | |
90 | unsigned ignore_untracked_in_submodules:1; | |
91 | unsigned ignore_dirty_submodules:1; | |
92 | unsigned override_submodule_config:1; | |
93 | unsigned dirstat_by_line:1; | |
94 | unsigned funccontext:1; | |
0d1e0e78 | 95 | unsigned default_follow_renames:1; |
ddf88fa6 | 96 | unsigned stat_with_summary:1; |
02f2f56b BW |
97 | }; |
98 | ||
99 | static inline void diff_flags_or(struct diff_flags *a, | |
100 | const struct diff_flags *b) | |
101 | { | |
102 | char *tmp_a = (char *)a; | |
103 | const char *tmp_b = (const char *)b; | |
104 | int i; | |
105 | ||
106 | for (i = 0; i < sizeof(struct diff_flags); i++) | |
107 | tmp_a[i] |= tmp_b[i]; | |
108 | } | |
109 | ||
628d5c2b KC |
110 | #define DIFF_XDL_TST(opts, flag) ((opts)->xdl_opts & XDF_##flag) |
111 | #define DIFF_XDL_SET(opts, flag) ((opts)->xdl_opts |= XDF_##flag) | |
112 | #define DIFF_XDL_CLR(opts, flag) ((opts)->xdl_opts &= ~XDF_##flag) | |
8f67f8ae | 113 | |
307ab20b JH |
114 | #define DIFF_WITH_ALG(opts, flag) (((opts)->xdl_opts & ~XDF_DIFF_ALGORITHM_MASK) | XDF_##flag) |
115 | ||
882749a0 TR |
116 | enum diff_words_type { |
117 | DIFF_WORDS_NONE = 0, | |
118 | DIFF_WORDS_PORCELAIN, | |
119 | DIFF_WORDS_PLAIN, | |
120 | DIFF_WORDS_COLOR | |
121 | }; | |
122 | ||
61cfbc05 JK |
123 | enum diff_submodule_format { |
124 | DIFF_SUBMODULE_SHORT = 0, | |
fd47ae6a JK |
125 | DIFF_SUBMODULE_LOG, |
126 | DIFF_SUBMODULE_INLINE_DIFF | |
61cfbc05 JK |
127 | }; |
128 | ||
6b5ee137 | 129 | struct diff_options { |
6b5ee137 JH |
130 | const char *orderfile; |
131 | const char *pickaxe; | |
2f3f8b21 | 132 | const char *single_follow; |
eab9a40b | 133 | const char *a_prefix, *b_prefix; |
660e113c JK |
134 | const char *line_prefix; |
135 | size_t line_prefix_length; | |
02f2f56b | 136 | struct diff_flags flags; |
1ecc1cbd JH |
137 | |
138 | /* diff-filter bits */ | |
139 | unsigned int filter; | |
140 | ||
f1c96261 | 141 | int use_color; |
ee1e5412 | 142 | int context; |
6d0e674a | 143 | int interhunkcontext; |
6b5ee137 JH |
144 | int break_opt; |
145 | int detect_rename; | |
467ddc14 | 146 | int irreversible_delete; |
fb13227e | 147 | int skip_stat_unmatch; |
6b5ee137 JH |
148 | int line_termination; |
149 | int output_format; | |
929ed70a | 150 | unsigned pickaxe_opts; |
6b5ee137 | 151 | int rename_score; |
8082d8d3 | 152 | int rename_limit; |
bf0ab10f | 153 | int needed_rename_limit; |
f31027c9 | 154 | int degraded_cc_to_c; |
3ac942d4 | 155 | int show_rename_progress; |
712d2c7d | 156 | int dirstat_permille; |
6b5ee137 | 157 | int setup; |
47dd0d59 | 158 | int abbrev; |
425a28e0 | 159 | int ita_invisible_in_index; |
b8767f79 | 160 | /* white-space error highlighting */ |
091f8e28 SB |
161 | #define WSEH_NEW (1<<12) |
162 | #define WSEH_CONTEXT (1<<13) | |
163 | #define WSEH_OLD (1<<14) | |
b8767f79 | 164 | unsigned ws_error_highlight; |
cd676a51 JH |
165 | const char *prefix; |
166 | int prefix_length; | |
698ce6f8 | 167 | const char *stat_sep; |
0d21efa5 | 168 | long xdl_opts; |
ac1b3d12 | 169 | |
2477ab2e JT |
170 | /* see Documentation/diff-options.txt */ |
171 | char **anchors; | |
172 | size_t anchors_nr, anchors_alloc; | |
173 | ||
a2540023 JH |
174 | int stat_width; |
175 | int stat_name_width; | |
969fe57b | 176 | int stat_graph_width; |
808e1db2 | 177 | int stat_count; |
2b6a5417 | 178 | const char *word_regex; |
882749a0 | 179 | enum diff_words_type word_diff; |
61cfbc05 | 180 | enum diff_submodule_format submodule_format; |
a2540023 | 181 | |
15af58c1 SB |
182 | struct oidset *objfind; |
183 | ||
34a5e1a2 JS |
184 | /* this is set by diffcore for DIFF_FORMAT_PATCH */ |
185 | int found_changes; | |
186 | ||
44c48a90 JH |
187 | /* to support internal diff recursion by --follow hack*/ |
188 | int found_follow; | |
189 | ||
6c374008 JH |
190 | void (*set_default)(struct diff_options *); |
191 | ||
c0c77734 DB |
192 | FILE *file; |
193 | int close_file; | |
194 | ||
66f13625 | 195 | struct pathspec pathspec; |
72441af7 | 196 | pathchange_fn_t pathchange; |
ac1b3d12 LT |
197 | change_fn_t change; |
198 | add_remove_fn_t add_remove; | |
a937b37e | 199 | void *change_fn_data; |
04245581 JK |
200 | diff_format_fn_t format_callback; |
201 | void *format_callback_data; | |
a3c158d4 BY |
202 | diff_prefix_fn_t output_prefix; |
203 | void *output_prefix_data; | |
ee7fb0b1 ZK |
204 | |
205 | int diff_path_counter; | |
e6e045f8 SB |
206 | |
207 | struct emitted_diff_symbols *emitted_symbols; | |
2e2d5ac1 SB |
208 | enum { |
209 | COLOR_MOVED_NO = 0, | |
176841f0 | 210 | COLOR_MOVED_PLAIN = 1, |
2e2d5ac1 | 211 | COLOR_MOVED_ZEBRA = 2, |
86b452e2 | 212 | COLOR_MOVED_ZEBRA_DIM = 3, |
2e2d5ac1 SB |
213 | } color_moved; |
214 | #define COLOR_MOVED_DEFAULT COLOR_MOVED_ZEBRA | |
f0b8fb6e | 215 | #define COLOR_MOVED_MIN_ALNUM_COUNT 20 |
6b5ee137 JH |
216 | }; |
217 | ||
f3597138 SB |
218 | void diff_emit_submodule_del(struct diff_options *o, const char *line); |
219 | void diff_emit_submodule_add(struct diff_options *o, const char *line); | |
220 | void diff_emit_submodule_untracked(struct diff_options *o, const char *path); | |
221 | void diff_emit_submodule_modified(struct diff_options *o, const char *path); | |
222 | void diff_emit_submodule_header(struct diff_options *o, const char *header); | |
223 | void diff_emit_submodule_error(struct diff_options *o, const char *err); | |
224 | void diff_emit_submodule_pipethrough(struct diff_options *o, | |
225 | const char *line, int len); | |
226 | ||
ce436973 JK |
227 | enum color_diff { |
228 | DIFF_RESET = 0, | |
8dbf3eb6 | 229 | DIFF_CONTEXT = 1, |
ce436973 JK |
230 | DIFF_METAINFO = 2, |
231 | DIFF_FRAGINFO = 3, | |
232 | DIFF_FILE_OLD = 4, | |
233 | DIFF_FILE_NEW = 5, | |
234 | DIFF_COMMIT = 6, | |
448c3ef1 | 235 | DIFF_WHITESPACE = 7, |
2e2d5ac1 SB |
236 | DIFF_FUNCINFO = 8, |
237 | DIFF_FILE_OLD_MOVED = 9, | |
238 | DIFF_FILE_OLD_MOVED_ALT = 10, | |
86b452e2 SB |
239 | DIFF_FILE_OLD_MOVED_DIM = 11, |
240 | DIFF_FILE_OLD_MOVED_ALT_DIM = 12, | |
241 | DIFF_FILE_NEW_MOVED = 13, | |
242 | DIFF_FILE_NEW_MOVED_ALT = 14, | |
243 | DIFF_FILE_NEW_MOVED_DIM = 15, | |
244 | DIFF_FILE_NEW_MOVED_ALT_DIM = 16 | |
ce436973 JK |
245 | }; |
246 | const char *diff_get_color(int diff_use_color, enum color_diff ix); | |
8f67f8ae | 247 | #define diff_get_color_opt(o, ix) \ |
f1c96261 | 248 | diff_get_color((o)->use_color, ix) |
8f67f8ae | 249 | |
ce436973 | 250 | |
f1922234 JK |
251 | const char *diff_line_prefix(struct diff_options *); |
252 | ||
253 | ||
698ce6f8 JS |
254 | extern const char mime_boundary_leader[]; |
255 | ||
72441af7 | 256 | extern struct combine_diff_path *diff_tree_paths( |
fda94b41 BW |
257 | struct combine_diff_path *p, const struct object_id *oid, |
258 | const struct object_id **parents_oid, int nparent, | |
72441af7 | 259 | struct strbuf *base, struct diff_options *opt); |
66f414f8 BW |
260 | extern int diff_tree_oid(const struct object_id *old_oid, |
261 | const struct object_id *new_oid, | |
262 | const char *base, struct diff_options *opt); | |
7b8dea0c BW |
263 | extern int diff_root_tree_oid(const struct object_id *new_oid, const char *base, |
264 | struct diff_options *opt); | |
ac1b3d12 | 265 | |
ea726d02 JH |
266 | struct combine_diff_path { |
267 | struct combine_diff_path *next; | |
ea726d02 | 268 | char *path; |
2454c962 | 269 | unsigned int mode; |
1ff57c13 | 270 | struct object_id oid; |
2454c962 | 271 | struct combine_diff_parent { |
d416df88 | 272 | char status; |
2454c962 | 273 | unsigned int mode; |
1ff57c13 | 274 | struct object_id oid; |
2454c962 | 275 | } parent[FLEX_ARRAY]; |
ea726d02 | 276 | }; |
2454c962 | 277 | #define combine_diff_path_size(n, l) \ |
5b442c4f JK |
278 | st_add4(sizeof(struct combine_diff_path), (l), 1, \ |
279 | st_mult(sizeof(struct combine_diff_parent), (n))) | |
ea726d02 | 280 | |
91539833 LT |
281 | extern void show_combined_diff(struct combine_diff_path *elem, int num_parent, |
282 | int dense, struct rev_info *); | |
ea726d02 | 283 | |
b9acf54d | 284 | extern void diff_tree_combined(const struct object_id *oid, const struct oid_array *parents, int dense, struct rev_info *rev); |
0fe7c1de | 285 | |
82889295 | 286 | extern void diff_tree_combined_merge(const struct commit *commit, int dense, struct rev_info *rev); |
af3feefa | 287 | |
a5a818ee JH |
288 | void diff_set_mnemonic_prefix(struct diff_options *options, const char *a, const char *b); |
289 | ||
28b9264d JH |
290 | extern int diff_can_quit_early(struct diff_options *); |
291 | ||
6b5ee137 JH |
292 | extern void diff_addremove(struct diff_options *, |
293 | int addremove, | |
77eb2720 | 294 | unsigned mode, |
c26022ea BW |
295 | const struct object_id *oid, |
296 | int oid_valid, | |
e3d42c47 | 297 | const char *fullpath, unsigned dirty_submodule); |
77eb2720 | 298 | |
6b5ee137 JH |
299 | extern void diff_change(struct diff_options *, |
300 | unsigned mode1, unsigned mode2, | |
94a0097a BW |
301 | const struct object_id *old_oid, |
302 | const struct object_id *new_oid, | |
303 | int old_oid_valid, int new_oid_valid, | |
e3d42c47 JL |
304 | const char *fullpath, |
305 | unsigned dirty_submodule1, unsigned dirty_submodule2); | |
77eb2720 | 306 | |
fa7b2908 | 307 | extern struct diff_filepair *diff_unmerge(struct diff_options *, const char *path); |
77eb2720 | 308 | |
19feebc8 | 309 | #define DIFF_SETUP_REVERSE 1 |
f0c6b2a2 JH |
310 | #define DIFF_SETUP_USE_CACHE 2 |
311 | #define DIFF_SETUP_USE_SIZE_CACHE 4 | |
ce240675 | 312 | |
dea007fb | 313 | /* |
b0d12fc9 | 314 | * Poor man's alternative to parse-option, to allow both stuck form |
dea007fb MM |
315 | * (--option=value) and separate form (--option value). |
316 | */ | |
317 | extern int parse_long_opt(const char *opt, const char **argv, | |
318 | const char **optarg); | |
319 | ||
ef90d6d4 | 320 | extern int git_diff_basic_config(const char *var, const char *value, void *cb); |
5b162879 | 321 | extern int git_diff_heuristic_config(const char *var, const char *value, void *cb); |
5404c116 | 322 | extern void init_diff_ui_defaults(void); |
ef90d6d4 | 323 | extern int git_diff_ui_config(const char *var, const char *value, void *cb); |
6b5ee137 | 324 | extern void diff_setup(struct diff_options *); |
a97262c6 | 325 | extern int diff_opt_parse(struct diff_options *, const char **, int, const char *); |
28452655 | 326 | extern void diff_setup_done(struct diff_options *); |
86436c28 | 327 | |
6b14d7fa JH |
328 | #define DIFF_DETECT_RENAME 1 |
329 | #define DIFF_DETECT_COPY 2 | |
330 | ||
367cec1c | 331 | #define DIFF_PICKAXE_ALL 1 |
d01d8c67 | 332 | #define DIFF_PICKAXE_REGEX 2 |
f345b0a0 | 333 | |
f506b8e8 JH |
334 | #define DIFF_PICKAXE_KIND_S 4 /* traditional plumbing counter */ |
335 | #define DIFF_PICKAXE_KIND_G 8 /* grep in the patch */ | |
15af58c1 | 336 | #define DIFF_PICKAXE_KIND_OBJFIND 16 /* specific object IDs */ |
f506b8e8 | 337 | |
15af58c1 SB |
338 | #define DIFF_PICKAXE_KINDS_MASK (DIFF_PICKAXE_KIND_S | \ |
339 | DIFF_PICKAXE_KIND_G | \ | |
340 | DIFF_PICKAXE_KIND_OBJFIND) | |
cf63051a | 341 | |
c1ddc461 | 342 | #define DIFF_PICKAXE_IGNORE_CASE 32 |
f506b8e8 | 343 | |
6b5ee137 | 344 | extern void diffcore_std(struct diff_options *); |
730f7284 | 345 | extern void diffcore_fix_diff_index(struct diff_options *); |
f2ce9fde | 346 | |
dda2d79a JH |
347 | #define COMMON_DIFF_OPTIONS_HELP \ |
348 | "\ncommon diff options:\n" \ | |
8082d8d3 JH |
349 | " -z output diff-raw with lines terminated with NUL.\n" \ |
350 | " -p output patch format.\n" \ | |
351 | " -u synonym for -p.\n" \ | |
5c91da25 PB |
352 | " --patch-with-raw\n" \ |
353 | " output both a patch and the diff-raw format.\n" \ | |
d75f7952 | 354 | " --stat show diffstat instead of patch.\n" \ |
74e2abe5 | 355 | " --numstat show numeric diffstat instead of patch.\n" \ |
29353273 JS |
356 | " --patch-with-stat\n" \ |
357 | " output a patch and prepend its diffstat.\n" \ | |
8082d8d3 | 358 | " --name-only show only names of changed files.\n" \ |
946f5f7c | 359 | " --name-status show names and status of changed files.\n" \ |
47dd0d59 | 360 | " --full-index show full object name on index lines.\n" \ |
913419fc | 361 | " --abbrev=<n> abbreviate object names in diff-tree header and diff-raw.\n" \ |
8082d8d3 JH |
362 | " -R swap input file pairs.\n" \ |
363 | " -B detect complete rewrites.\n" \ | |
364 | " -M detect renames.\n" \ | |
365 | " -C detect copies.\n" \ | |
dda2d79a | 366 | " --find-copies-harder\n" \ |
8082d8d3 JH |
367 | " try unchanged files as candidate for copy detection.\n" \ |
368 | " -l<n> limit rename attempts up to <n> paths.\n" \ | |
369 | " -O<file> reorder diffs according to the <file>.\n" \ | |
370 | " -S<string> find filepair whose only one side contains the string.\n" \ | |
dda2d79a | 371 | " --pickaxe-all\n" \ |
ca49920f SF |
372 | " show all files diff when -S is used and hit is found.\n" \ |
373 | " -a --text treat all files as text.\n" | |
dda2d79a | 374 | |
38c6f780 | 375 | extern int diff_queue_is_empty(void); |
6b5ee137 | 376 | extern void diff_flush(struct diff_options*); |
f31027c9 | 377 | extern void diff_warn_rename_limit(const char *varname, int needed, int degraded_cc); |
86436c28 | 378 | |
e7baa4f4 | 379 | /* diff-raw status letters */ |
ca8c9156 | 380 | #define DIFF_STATUS_ADDED 'A' |
e7baa4f4 JH |
381 | #define DIFF_STATUS_COPIED 'C' |
382 | #define DIFF_STATUS_DELETED 'D' | |
383 | #define DIFF_STATUS_MODIFIED 'M' | |
384 | #define DIFF_STATUS_RENAMED 'R' | |
385 | #define DIFF_STATUS_TYPE_CHANGED 'T' | |
386 | #define DIFF_STATUS_UNKNOWN 'X' | |
387 | #define DIFF_STATUS_UNMERGED 'U' | |
388 | ||
389 | /* these are not diff-raw status letters proper, but used by | |
390 | * diffcore-filter insn to specify additional restrictions. | |
391 | */ | |
0b34379a | 392 | #define DIFF_STATUS_FILTER_AON '*' |
e7baa4f4 JH |
393 | #define DIFF_STATUS_FILTER_BROKEN 'B' |
394 | ||
d5e3b01e JK |
395 | /* |
396 | * This is different from find_unique_abbrev() in that | |
397 | * it stuffs the result with dots for alignment. | |
398 | */ | |
d6cece51 | 399 | extern const char *diff_aligned_abbrev(const struct object_id *sha1, int); |
47dd0d59 | 400 | |
4bd5b7da JH |
401 | /* do not report anything on removed paths */ |
402 | #define DIFF_SILENT_ON_REMOVED 01 | |
fb63d7f8 JH |
403 | /* report racily-clean paths as modified */ |
404 | #define DIFF_RACY_IS_MODIFIED 02 | |
4bd5b7da | 405 | extern int run_diff_files(struct rev_info *revs, unsigned int option); |
5c21ac0e | 406 | extern int run_diff_index(struct rev_info *revs, int cached); |
e09ad6e1 | 407 | |
944cffbd | 408 | extern int do_diff_cache(const struct object_id *, struct diff_options *); |
bd25f288 | 409 | extern int diff_flush_patch_id(struct diff_options *, struct object_id *, int); |
fcb3d0ad | 410 | |
da31b358 JH |
411 | extern int diff_result_code(struct diff_options *, int); |
412 | ||
e5f7a5d1 | 413 | extern void diff_no_index(struct rev_info *, int, const char **); |
0569e9b8 | 414 | |
02f2f56b BW |
415 | extern int index_differs_from(const char *def, const struct diff_flags *flags, |
416 | int ita_invisible_in_index); | |
75f3ff2e | 417 | |
a64e6a44 JK |
418 | /* |
419 | * Fill the contents of the filespec "df", respecting any textconv defined by | |
420 | * its userdiff driver. The "driver" parameter must come from a | |
421 | * previous call to get_textconv(), and therefore should either be NULL or have | |
422 | * textconv enabled. | |
423 | * | |
424 | * Note that the memory ownership of the resulting buffer depends on whether | |
425 | * the driver field is NULL. If it is, then the memory belongs to the filespec | |
426 | * struct. If it is non-NULL, then "outbuf" points to a newly allocated buffer | |
427 | * that should be freed by the caller. | |
428 | */ | |
a788d7d5 AB |
429 | extern size_t fill_textconv(struct userdiff_driver *driver, |
430 | struct diff_filespec *df, | |
431 | char **outbuf); | |
432 | ||
a64e6a44 JK |
433 | /* |
434 | * Look up the userdiff driver for the given filespec, and return it if | |
435 | * and only if it has textconv enabled (otherwise return NULL). The result | |
436 | * can be passed to fill_textconv(). | |
437 | */ | |
a788d7d5 AB |
438 | extern struct userdiff_driver *get_textconv(struct diff_filespec *one); |
439 | ||
3a35cb2e JS |
440 | /* |
441 | * Prepare diff_filespec and convert it using diff textconv API | |
442 | * if the textconv driver exists. | |
443 | * Return 1 if the conversion succeeds, 0 otherwise. | |
444 | */ | |
445 | extern int textconv_object(const char *path, unsigned mode, const struct object_id *oid, int oid_valid, char **buf, unsigned long *buf_size); | |
446 | ||
10ae7526 KB |
447 | extern int parse_rename_score(const char **cp_p); |
448 | ||
07924d4d MP |
449 | extern long parse_algorithm_value(const char *value); |
450 | ||
0911c475 SB |
451 | extern void print_stat_summary(FILE *fp, int files, |
452 | int insertions, int deletions); | |
4914c962 | 453 | extern void setup_diff_pager(struct diff_options *); |
7f814632 | 454 | |
86436c28 | 455 | #endif /* DIFF_H */ |