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chromium / external / github.com / git / git / refs/tags/v1.6.4 / . / diff.h
blob: 6616877ee5d15a8101cbdea0271cc18f8837d2f1 [file] [log] [blame]
Junio C Hamanobe3cfa82005-04-26 16:25:05[diff] [blame]1/*
2 * Copyright (C) 2005 Junio C Hamano
3 */
Junio C Hamano86436c22005-04-26 01:22:47[diff] [blame]4#ifndef DIFF_H
5#define DIFF_H
6
Junio C Hamano1b0c7172006-03-30 06:55:43[diff] [blame]7#include "tree-walk.h"
Linus Torvalds50f9a852006-01-31 22:10:56[diff] [blame]8
Linus Torvalds91539832006-04-17 18:59:32[diff] [blame]9struct rev_info;
Linus Torvaldsac1b3d12005-10-21 04:05:05[diff] [blame]10struct diff_options;
Jeff King04245582006-09-07 06:35:42[diff] [blame]11struct diff_queue_struct;
Linus Torvaldsac1b3d12005-10-21 04:05:05[diff] [blame]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,
Dmitry Potapovfd55a192008-07-16 14:54:02[diff] [blame]17 const char *fullpath);
Linus Torvaldsac1b3d12005-10-21 04:05:05[diff] [blame]18
19typedef void (*add_remove_fn_t)(struct diff_options *options,
20 int addremove, unsigned mode,
21 const unsigned char *sha1,
Dmitry Potapovfd55a192008-07-16 14:54:02[diff] [blame]22 const char *fullpath);
Linus Torvaldsac1b3d12005-10-21 04:05:05[diff] [blame]23
Jeff King04245582006-09-07 06:35:42[diff] [blame]24typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
25 struct diff_options *options, void *data);
26
Timo Hirvonenc6744342006-06-24 17:21:53[diff] [blame]27#define DIFF_FORMAT_RAW 0x0001
28#define DIFF_FORMAT_DIFFSTAT 0x0002
Junio C Hamano74e2abe2006-10-12 10:01:00[diff] [blame]29#define DIFF_FORMAT_NUMSTAT 0x0004
30#define DIFF_FORMAT_SUMMARY 0x0008
31#define DIFF_FORMAT_PATCH 0x0010
Nicolas Pitreebd124c2006-12-15 04:15:44[diff] [blame]32#define DIFF_FORMAT_SHORTSTAT 0x0020
Linus Torvalds7df7c012008-02-12 21:26:31[diff] [blame]33#define DIFF_FORMAT_DIRSTAT 0x0040
Timo Hirvonenc6744342006-06-24 17:21:53[diff] [blame]34
35/* These override all above */
Junio C Hamano74e2abe2006-10-12 10:01:00[diff] [blame]36#define DIFF_FORMAT_NAME 0x0100
37#define DIFF_FORMAT_NAME_STATUS 0x0200
38#define DIFF_FORMAT_CHECKDIFF 0x0400
Timo Hirvonenc6744342006-06-24 17:21:53[diff] [blame]39
40/* Same as output_format = 0 but we know that -s flag was given
41 * and we should not give default value to output_format.
42 */
Junio C Hamano74e2abe2006-10-12 10:01:00[diff] [blame]43#define DIFF_FORMAT_NO_OUTPUT 0x0800
Timo Hirvonenc6744342006-06-24 17:21:53[diff] [blame]44
Junio C Hamano74e2abe2006-10-12 10:01:00[diff] [blame]45#define DIFF_FORMAT_CALLBACK 0x1000
Jeff King04245582006-09-07 06:35:42[diff] [blame]46
Pierre Habouzit8f67f8a2007-11-10 19:05:14[diff] [blame]47#define DIFF_OPT_RECURSIVE (1 << 0)
48#define DIFF_OPT_TREE_IN_RECURSIVE (1 << 1)
49#define DIFF_OPT_BINARY (1 << 2)
50#define DIFF_OPT_TEXT (1 << 3)
51#define DIFF_OPT_FULL_INDEX (1 << 4)
52#define DIFF_OPT_SILENT_ON_REMOVE (1 << 5)
53#define DIFF_OPT_FIND_COPIES_HARDER (1 << 6)
54#define DIFF_OPT_FOLLOW_RENAMES (1 << 7)
55#define DIFF_OPT_COLOR_DIFF (1 << 8)
56#define DIFF_OPT_COLOR_DIFF_WORDS (1 << 9)
57#define DIFF_OPT_HAS_CHANGES (1 << 10)
58#define DIFF_OPT_QUIET (1 << 11)
59#define DIFF_OPT_NO_INDEX (1 << 12)
60#define DIFF_OPT_ALLOW_EXTERNAL (1 << 13)
61#define DIFF_OPT_EXIT_WITH_STATUS (1 << 14)
62#define DIFF_OPT_REVERSE_DIFF (1 << 15)
Wincent Colaiuta62c64892007-12-13 20:24:52[diff] [blame]63#define DIFF_OPT_CHECK_FAILED (1 << 16)
Junio C Hamanocd676a52008-02-12 22:26:02[diff] [blame]64#define DIFF_OPT_RELATIVE_NAME (1 << 17)
Johannes Schindelin50fd9bd2008-05-14 17:03:31[diff] [blame]65#define DIFF_OPT_IGNORE_SUBMODULES (1 << 18)
Junio C Hamanof88d2252008-09-03 00:28:59[diff] [blame]66#define DIFF_OPT_DIRSTAT_CUMULATIVE (1 << 19)
Heikki Orsilafd337772008-09-05 19:27:35[diff] [blame]67#define DIFF_OPT_DIRSTAT_BY_FILE (1 << 20)
Jeff Kingc7534ef2008-10-26 04:45:55[diff] [blame]68#define DIFF_OPT_ALLOW_TEXTCONV (1 << 21)
Pierre Habouzit8f67f8a2007-11-10 19:05:14[diff] [blame]69#define DIFF_OPT_TST(opts, flag) ((opts)->flags & DIFF_OPT_##flag)
70#define DIFF_OPT_SET(opts, flag) ((opts)->flags |= DIFF_OPT_##flag)
71#define DIFF_OPT_CLR(opts, flag) ((opts)->flags &= ~DIFF_OPT_##flag)
Keith Cascio628d5c22009-02-17 03:26:49[diff] [blame]72#define DIFF_XDL_TST(opts, flag) ((opts)->xdl_opts & XDF_##flag)
73#define DIFF_XDL_SET(opts, flag) ((opts)->xdl_opts |= XDF_##flag)
74#define DIFF_XDL_CLR(opts, flag) ((opts)->xdl_opts &= ~XDF_##flag)
Pierre Habouzit8f67f8a2007-11-10 19:05:14[diff] [blame]75
Junio C Hamano6b5ee132005-09-21 07:00:47[diff] [blame]76struct diff_options {
Junio C Hamano6b5ee132005-09-21 07:00:47[diff] [blame]77 const char *filter;
78 const char *orderfile;
79 const char *pickaxe;
Junio C Hamano2f3f8b22006-11-02 08:02:11[diff] [blame]80 const char *single_follow;
Johannes Schindelineab9a402007-12-18 19:32:14[diff] [blame]81 const char *a_prefix, *b_prefix;
Pierre Habouzit8f67f8a2007-11-10 19:05:14[diff] [blame]82 unsigned flags;
Linus Torvaldsee1e5412006-05-13 20:23:48[diff] [blame]83 int context;
René Scharfe6d0e6742008-12-28 18:45:32[diff] [blame]84 int interhunkcontext;
Junio C Hamano6b5ee132005-09-21 07:00:47[diff] [blame]85 int break_opt;
86 int detect_rename;
Junio C Hamanofb132272007-08-03 20:33:31[diff] [blame]87 int skip_stat_unmatch;
Junio C Hamano6b5ee132005-09-21 07:00:47[diff] [blame]88 int line_termination;
89 int output_format;
90 int pickaxe_opts;
91 int rename_score;
Junio C Hamano8082d8d2005-09-21 07:18:27[diff] [blame]92 int rename_limit;
Jeff Kingb8960bb2008-04-30 17:25:53[diff] [blame]93 int warn_on_too_large_rename;
Linus Torvalds7df7c012008-02-12 21:26:31[diff] [blame]94 int dirstat_percent;
Junio C Hamano6b5ee132005-09-21 07:00:47[diff] [blame]95 int setup;
Junio C Hamano47dd0d52005-12-14 01:21:41[diff] [blame]96 int abbrev;
Junio C Hamanocd676a52008-02-12 22:26:02[diff] [blame]97 const char *prefix;
98 int prefix_length;
Johannes Schindelin698ce6f2006-05-20 13:40:29[diff] [blame]99 const char *stat_sep;
Johannes Schindelin0d21efa2006-06-14 15:40:23[diff] [blame]100 long xdl_opts;
Linus Torvaldsac1b3d12005-10-21 04:05:05[diff] [blame]101
Junio C Hamanoa2540022006-09-27 01:53:02[diff] [blame]102 int stat_width;
103 int stat_name_width;
Johannes Schindelin2b6a5412009-01-17 16:29:45[diff] [blame]104 const char *word_regex;
Junio C Hamanoa2540022006-09-27 01:53:02[diff] [blame]105
Johannes Schindelin34a5e1a2007-02-25 22:34:54[diff] [blame]106 /* this is set by diffcore for DIFF_FORMAT_PATCH */
107 int found_changes;
108
Daniel Barkalowc0c77732008-03-10 02:43:39[diff] [blame]109 FILE *file;
110 int close_file;
111
Junio C Hamanoa8baa7b2006-04-10 23:39:11[diff] [blame]112 int nr_paths;
113 const char **paths;
114 int *pathlens;
Linus Torvaldsac1b3d12005-10-21 04:05:05[diff] [blame]115 change_fn_t change;
116 add_remove_fn_t add_remove;
Jeff King04245582006-09-07 06:35:42[diff] [blame]117 diff_format_fn_t format_callback;
118 void *format_callback_data;
Junio C Hamano6b5ee132005-09-21 07:00:47[diff] [blame]119};
120
Jeff Kingce436972006-07-23 09:24:18[diff] [blame]121enum color_diff {
122 DIFF_RESET = 0,
123 DIFF_PLAIN = 1,
124 DIFF_METAINFO = 2,
125 DIFF_FRAGINFO = 3,
126 DIFF_FILE_OLD = 4,
127 DIFF_FILE_NEW = 5,
128 DIFF_COMMIT = 6,
Junio C Hamano448c3ef2006-09-23 05:48:39[diff] [blame]129 DIFF_WHITESPACE = 7,
Jeff Kingce436972006-07-23 09:24:18[diff] [blame]130};
131const char *diff_get_color(int diff_use_color, enum color_diff ix);
Pierre Habouzit8f67f8a2007-11-10 19:05:14[diff] [blame]132#define diff_get_color_opt(o, ix) \
133 diff_get_color(DIFF_OPT_TST((o), COLOR_DIFF), ix)
134
Jeff Kingce436972006-07-23 09:24:18[diff] [blame]135
Johannes Schindelin698ce6f2006-05-20 13:40:29[diff] [blame]136extern const char mime_boundary_leader[];
137
Junio C Hamanoa8baa7b2006-04-10 23:39:11[diff] [blame]138extern void diff_tree_setup_paths(const char **paths, struct diff_options *);
139extern void diff_tree_release_paths(struct diff_options *);
Linus Torvaldsac1b3d12005-10-21 04:05:05[diff] [blame]140extern int diff_tree(struct tree_desc *t1, struct tree_desc *t2,
141 const char *base, struct diff_options *opt);
142extern int diff_tree_sha1(const unsigned char *old, const unsigned char *new,
143 const char *base, struct diff_options *opt);
Rene Scharfe2b603562006-10-26 16:52:39[diff] [blame]144extern int diff_root_tree_sha1(const unsigned char *new, const char *base,
145 struct diff_options *opt);
Linus Torvaldsac1b3d12005-10-21 04:05:05[diff] [blame]146
Junio C Hamanoea726d02006-01-28 08:03:38[diff] [blame]147struct combine_diff_path {
148 struct combine_diff_path *next;
149 int len;
150 char *path;
Junio C Hamano2454c962006-02-06 20:53:07[diff] [blame]151 unsigned int mode;
Junio C Hamanoea726d02006-01-28 08:03:38[diff] [blame]152 unsigned char sha1[20];
Junio C Hamano2454c962006-02-06 20:53:07[diff] [blame]153 struct combine_diff_parent {
Junio C Hamanod416df82006-02-10 10:30:52[diff] [blame]154 char status;
Junio C Hamano2454c962006-02-06 20:53:07[diff] [blame]155 unsigned int mode;
156 unsigned char sha1[20];
157 } parent[FLEX_ARRAY];
Junio C Hamanoea726d02006-01-28 08:03:38[diff] [blame]158};
Junio C Hamano2454c962006-02-06 20:53:07[diff] [blame]159#define combine_diff_path_size(n, l) \
160 (sizeof(struct combine_diff_path) + \
161 sizeof(struct combine_diff_parent) * (n) + (l) + 1)
Junio C Hamanoea726d02006-01-28 08:03:38[diff] [blame]162
Linus Torvalds91539832006-04-17 18:59:32[diff] [blame]163extern void show_combined_diff(struct combine_diff_path *elem, int num_parent,
164 int dense, struct rev_info *);
Junio C Hamanoea726d02006-01-28 08:03:38[diff] [blame]165
Junio C Hamano0fe7c1d2006-04-29 08:24:49[diff] [blame]166extern void diff_tree_combined(const unsigned char *sha1, const unsigned char parent[][20], int num_parent, int dense, struct rev_info *rev);
167
Linus Torvalds91539832006-04-17 18:59:32[diff] [blame]168extern void diff_tree_combined_merge(const unsigned char *sha1, int, struct rev_info *);
Junio C Hamanoaf3feef2006-01-24 09:22:04[diff] [blame]169
Junio C Hamanoa5a818e2008-08-19 03:08:09[diff] [blame]170void diff_set_mnemonic_prefix(struct diff_options *options, const char *a, const char *b);
171
Junio C Hamano6b5ee132005-09-21 07:00:47[diff] [blame]172extern void diff_addremove(struct diff_options *,
173 int addremove,
Junio C Hamano77eb2722005-04-27 16:21:00[diff] [blame]174 unsigned mode,
175 const unsigned char *sha1,
Dmitry Potapovfd55a192008-07-16 14:54:02[diff] [blame]176 const char *fullpath);
Junio C Hamano77eb2722005-04-27 16:21:00[diff] [blame]177
Junio C Hamano6b5ee132005-09-21 07:00:47[diff] [blame]178extern void diff_change(struct diff_options *,
179 unsigned mode1, unsigned mode2,
180 const unsigned char *sha1,
181 const unsigned char *sha2,
Dmitry Potapovfd55a192008-07-16 14:54:02[diff] [blame]182 const char *fullpath);
Junio C Hamano77eb2722005-04-27 16:21:00[diff] [blame]183
Junio C Hamano6b5ee132005-09-21 07:00:47[diff] [blame]184extern void diff_unmerge(struct diff_options *,
Junio C Hamanoe9c84092007-01-05 09:25:18[diff] [blame]185 const char *path,
186 unsigned mode,
187 const unsigned char *sha1);
Junio C Hamano77eb2722005-04-27 16:21:00[diff] [blame]188
Junio C Hamano19feebc2005-05-27 22:54:37[diff] [blame]189#define DIFF_SETUP_REVERSE 1
Junio C Hamanof0c6b2a2005-05-27 22:56:38[diff] [blame]190#define DIFF_SETUP_USE_CACHE 2
191#define DIFF_SETUP_USE_SIZE_CACHE 4
Junio C Hamanoce240672005-06-03 08:36:43[diff] [blame]192
Johannes Schindelinef90d6d2008-05-14 17:46:53[diff] [blame]193extern int git_diff_basic_config(const char *var, const char *value, void *cb);
194extern int git_diff_ui_config(const char *var, const char *value, void *cb);
Matthias Kestenholz6b2f2d92008-02-18 07:26:03[diff] [blame]195extern int diff_use_color_default;
Junio C Hamano6b5ee132005-09-21 07:00:47[diff] [blame]196extern void diff_setup(struct diff_options *);
197extern int diff_opt_parse(struct diff_options *, const char **, int);
198extern int diff_setup_done(struct diff_options *);
Junio C Hamano86436c22005-04-26 01:22:47[diff] [blame]199
Junio C Hamano6b14d7f2005-05-22 17:04:37[diff] [blame]200#define DIFF_DETECT_RENAME 1
201#define DIFF_DETECT_COPY 2
202
Junio C Hamano367cec12005-05-27 22:55:28[diff] [blame]203#define DIFF_PICKAXE_ALL 1
Petr Baudisd01d8c62006-03-29 00:16:33[diff] [blame]204#define DIFF_PICKAXE_REGEX 2
Junio C Hamanof345b0a2005-05-30 07:08:37[diff] [blame]205
Junio C Hamano6b5ee132005-09-21 07:00:47[diff] [blame]206extern void diffcore_std(struct diff_options *);
Junio C Hamanof2ce9fd2005-06-12 03:57:13[diff] [blame]207
Junio C Hamanodda2d792005-07-13 19:52:35[diff] [blame]208#define COMMON_DIFF_OPTIONS_HELP \
209"\ncommon diff options:\n" \
Junio C Hamano8082d8d2005-09-21 07:18:27[diff] [blame]210" -z output diff-raw with lines terminated with NUL.\n" \
211" -p output patch format.\n" \
212" -u synonym for -p.\n" \
Petr Baudis5c91da22006-04-11 11:22:17[diff] [blame]213" --patch-with-raw\n" \
214" output both a patch and the diff-raw format.\n" \
Johannes Schindelind75f7952006-04-13 22:15:30[diff] [blame]215" --stat show diffstat instead of patch.\n" \
Junio C Hamano74e2abe2006-10-12 10:01:00[diff] [blame]216" --numstat show numeric diffstat instead of patch.\n" \
Johannes Schindelin29353272006-04-15 11:41:18[diff] [blame]217" --patch-with-stat\n" \
218" output a patch and prepend its diffstat.\n" \
Junio C Hamano8082d8d2005-09-21 07:18:27[diff] [blame]219" --name-only show only names of changed files.\n" \
Junio C Hamano946f5f72005-09-21 07:20:06[diff] [blame]220" --name-status show names and status of changed files.\n" \
Junio C Hamano47dd0d52005-12-14 01:21:41[diff] [blame]221" --full-index show full object name on index lines.\n" \
Junio C Hamano913419f2005-12-18 10:03:15[diff] [blame]222" --abbrev=<n> abbreviate object names in diff-tree header and diff-raw.\n" \
Junio C Hamano8082d8d2005-09-21 07:18:27[diff] [blame]223" -R swap input file pairs.\n" \
224" -B detect complete rewrites.\n" \
225" -M detect renames.\n" \
226" -C detect copies.\n" \
Junio C Hamanodda2d792005-07-13 19:52:35[diff] [blame]227" --find-copies-harder\n" \
Junio C Hamano8082d8d2005-09-21 07:18:27[diff] [blame]228" try unchanged files as candidate for copy detection.\n" \
229" -l<n> limit rename attempts up to <n> paths.\n" \
230" -O<file> reorder diffs according to the <file>.\n" \
231" -S<string> find filepair whose only one side contains the string.\n" \
Junio C Hamanodda2d792005-07-13 19:52:35[diff] [blame]232" --pickaxe-all\n" \
Stephan Federca499202006-07-07 13:57:08[diff] [blame]233" show all files diff when -S is used and hit is found.\n" \
234" -a --text treat all files as text.\n"
Junio C Hamanodda2d792005-07-13 19:52:35[diff] [blame]235
Junio C Hamano38c6f782005-05-22 02:40:36[diff] [blame]236extern int diff_queue_is_empty(void);
Junio C Hamano6b5ee132005-09-21 07:00:47[diff] [blame]237extern void diff_flush(struct diff_options*);
Junio C Hamano86436c22005-04-26 01:22:47[diff] [blame]238
Junio C Hamanoe7baa4f2005-07-25 20:05:44[diff] [blame]239/* diff-raw status letters */
Junio C Hamanoca8c9152005-07-25 21:31:19[diff] [blame]240#define DIFF_STATUS_ADDED 'A'
Junio C Hamanoe7baa4f2005-07-25 20:05:44[diff] [blame]241#define DIFF_STATUS_COPIED 'C'
242#define DIFF_STATUS_DELETED 'D'
243#define DIFF_STATUS_MODIFIED 'M'
244#define DIFF_STATUS_RENAMED 'R'
245#define DIFF_STATUS_TYPE_CHANGED 'T'
246#define DIFF_STATUS_UNKNOWN 'X'
247#define DIFF_STATUS_UNMERGED 'U'
248
249/* these are not diff-raw status letters proper, but used by
250 * diffcore-filter insn to specify additional restrictions.
251 */
Junio C Hamano0b343792005-10-05 00:44:17[diff] [blame]252#define DIFF_STATUS_FILTER_AON '*'
Junio C Hamanoe7baa4f2005-07-25 20:05:44[diff] [blame]253#define DIFF_STATUS_FILTER_BROKEN 'B'
254
Junio C Hamano47dd0d52005-12-14 01:21:41[diff] [blame]255extern const char *diff_unique_abbrev(const unsigned char *, int);
256
Junio C Hamano4bd5b7d2007-11-10 08:15:03[diff] [blame]257/* do not report anything on removed paths */
258#define DIFF_SILENT_ON_REMOVED 01
Junio C Hamanofb63d7f2007-11-10 02:22:52[diff] [blame]259/* report racily-clean paths as modified */
260#define DIFF_RACY_IS_MODIFIED 02
Junio C Hamano4bd5b7d2007-11-10 08:15:03[diff] [blame]261extern int run_diff_files(struct rev_info *revs, unsigned int option);
Junio C Hamano5c21ac02006-04-22 10:58:04[diff] [blame]262extern int run_diff_index(struct rev_info *revs, int cached);
Junio C Hamanoe09ad6e2006-04-22 09:43:00[diff] [blame]263
Junio C Hamano1cfe7732007-01-30 09:11:08[diff] [blame]264extern int do_diff_cache(const unsigned char *, struct diff_options *);
Johannes Schindelinfcb3d0a2006-06-25 01:51:08[diff] [blame]265extern int diff_flush_patch_id(struct diff_options *, unsigned char *);
266
Junio C Hamanoda31b352007-12-14 07:40:27[diff] [blame]267extern int diff_result_code(struct diff_options *, int);
268
Junio C Hamano0569e9b2008-05-24 05:28:56[diff] [blame]269extern void diff_no_index(struct rev_info *, int, const char **, int, const char *);
270
Stephan Beyer75f3ff22009-02-10 14:30:35[diff] [blame]271extern int index_differs_from(const char *def, int diff_flags);
272
Junio C Hamano86436c22005-04-26 01:22:47[diff] [blame]273#endif /* DIFF_H */