]> git.ipfire.org Git - thirdparty/git.git/blame - Documentation/diff-options.txt
diff-parseopt: convert --output-*
[thirdparty/git.git] / Documentation / diff-options.txt
CommitLineData
c1a95fa6
SO
1// Please don't remove this comment as asciidoc behaves badly when
2// the first non-empty line is ifdef/ifndef. The symptom is that
3// without this comment the <git-diff-core> attribute conditionally
4// defined below ends up being defined unconditionally.
5// Last checked with asciidoc 7.0.2.
6
7ifndef::git-format-patch[]
8ifndef::git-diff[]
272bd3cf 9ifndef::git-log[]
c1a95fa6 10:git-diff-core: 1
272bd3cf 11endif::git-log[]
c1a95fa6
SO
12endif::git-diff[]
13endif::git-format-patch[]
14
15ifdef::git-format-patch[]
16-p::
2cfa8330 17--no-stat::
02bc5b03 18 Generate plain patches without any diffstats.
c1a95fa6
SO
19endif::git-format-patch[]
20
21ifndef::git-format-patch[]
dda2d79a 22-p::
a9e67c8c 23-u::
1c9eecff 24--patch::
c1a95fa6 25 Generate patch (see section on generating patches).
d0258b93
JK
26ifdef::git-diff[]
27 This is the default.
28endif::git-diff[]
dda2d79a 29
7b02c834
MM
30-s::
31--no-patch::
32 Suppress diff output. Useful for commands like `git show` that
33 show the patch by default, or to cancel the effect of `--patch`.
b73a1bcc 34endif::git-format-patch[]
7b02c834 35
4eb99473 36-U<n>::
4eb99473
RR
37--unified=<n>::
38 Generate diffs with <n> lines of context instead of
d473e2e0 39 the usual three. Implies `--patch`.
02bc5b03 40ifndef::git-format-patch[]
dce5ef14 41 Implies `-p`.
02bc5b03 42endif::git-format-patch[]
4eb99473 43
af2f3680
NTND
44--output=<file>::
45 Output to a specific file instead of stdout.
46
47--output-indicator-new=<char>::
48--output-indicator-old=<char>::
49--output-indicator-context=<char>::
50 Specify the character used to indicate new, old or context
51 lines in the generated patch. Normally they are '+', '-' and
52 ' ' respectively.
53
d4cb003f 54ifndef::git-format-patch[]
b5376648 55--raw::
d89df367
MM
56ifndef::git-log[]
57 Generate the diff in raw format.
d0258b93
JK
58ifdef::git-diff-core[]
59 This is the default.
60endif::git-diff-core[]
d89df367
MM
61endif::git-log[]
62ifdef::git-log[]
63 For each commit, show a summary of changes using the raw diff
64 format. See the "RAW OUTPUT FORMAT" section of
65 linkgit:git-diff[1]. This is different from showing the log
66 itself in raw format, which you can achieve with
67 `--format=raw`.
68endif::git-log[]
d4cb003f 69endif::git-format-patch[]
b5376648 70
02bc5b03 71ifndef::git-format-patch[]
5c91da25 72--patch-with-raw::
dce5ef14 73 Synonym for `-p --raw`.
02bc5b03 74endif::git-format-patch[]
5c91da25 75
bab76141 76--indent-heuristic::
7eedad15 77 Enable the heuristic that shifts diff hunk boundaries to make patches
bab76141
CMN
78 easier to read. This is the default.
79
80--no-indent-heuristic::
81 Disable the indent heuristic.
5580b271 82
81b568c8
JH
83--minimal::
84 Spend extra time to make sure the smallest possible
85 diff is produced.
86
ec74042d 87--patience::
34292bdd
JS
88 Generate a diff using the "patience diff" algorithm.
89
d909e076
TR
90--histogram::
91 Generate a diff using the "histogram diff" algorithm.
92
2477ab2e
JT
93--anchored=<text>::
94 Generate a diff using the "anchored diff" algorithm.
95+
96This option may be specified more than once.
97+
98If a line exists in both the source and destination, exists only once,
99and starts with this text, this algorithm attempts to prevent it from
100appearing as a deletion or addition in the output. It uses the "patience
101diff" algorithm internally.
102
07924d4d
MP
103--diff-algorithm={patience|minimal|histogram|myers}::
104 Choose a diff algorithm. The variants are as follows:
105+
106--
107`default`, `myers`;;
108 The basic greedy diff algorithm. Currently, this is the default.
109`minimal`;;
110 Spend extra time to make sure the smallest possible diff is
111 produced.
112`patience`;;
113 Use "patience diff" algorithm when generating patches.
114`histogram`;;
115 This algorithm extends the patience algorithm to "support
116 low-occurrence common elements".
117--
118+
7eedad15 119For instance, if you configured the `diff.algorithm` variable to a
07924d4d
MP
120non-default value and want to use the default one, then you
121have to use `--diff-algorithm=default` option.
122
808e1db2 123--stat[=<width>[,<name-width>[,<count>]]]::
1b058bc3 124 Generate a diffstat. By default, as much space as necessary
df44483a
ZJS
125 will be used for the filename part, and the rest for the graph
126 part. Maximum width defaults to terminal width, or 80 columns
8d8136c3 127 if not connected to a terminal, and can be overridden by
df44483a
ZJS
128 `<width>`. The width of the filename part can be limited by
129 giving another width `<name-width>` after a comma. The width
130 of the graph part can be limited by using
131 `--stat-graph-width=<width>` (affects all commands generating
132 a stat graph) or by setting `diff.statGraphWidth=<width>`
133 (does not affect `git format-patch`).
808e1db2 134 By giving a third parameter `<count>`, you can limit the
1b058bc3
ZJS
135 output to the first `<count>` lines, followed by `...` if
136 there are more.
86e1ce96
MG
137+
138These parameters can also be set individually with `--stat-width=<width>`,
139`--stat-name-width=<name-width>` and `--stat-count=<count>`.
d75f7952 140
ddf88fa6
NTND
141--compact-summary::
142 Output a condensed summary of extended header information such
143 as file creations or deletions ("new" or "gone", optionally "+l"
144 if it's a symlink) and mode changes ("+x" or "-x" for adding
145 or removing executable bit respectively) in diffstat. The
1f2abe68 146 information is put between the filename part and the graph
ddf88fa6
NTND
147 part. Implies `--stat`.
148
74e2abe5 149--numstat::
6cf378f0 150 Similar to `--stat`, but shows number of added and
74e2abe5 151 deleted lines in decimal notation and pathname without
2f89543e
JH
152 abbreviation, to make it more machine friendly. For
153 binary files, outputs two `-` instead of saying
154 `0 0`.
74e2abe5 155
ebd124c6 156--shortstat::
dce5ef14 157 Output only the last line of the `--stat` format containing total
ebd124c6
NP
158 number of modified files, as well as number of added and deleted
159 lines.
160
4ce7aab5 161-X[<param1,param2,...>]::
333f3fb0
JH
162--dirstat[=<param1,param2,...>]::
163 Output the distribution of relative amount of changes for each
164 sub-directory. The behavior of `--dirstat` can be customized by
165 passing it a comma separated list of parameters.
2d174951
JH
166 The defaults are controlled by the `diff.dirstat` configuration
167 variable (see linkgit:git-config[1]).
333f3fb0 168 The following parameters are available:
204f01a2 169+
333f3fb0
JH
170--
171`changes`;;
172 Compute the dirstat numbers by counting the lines that have been
173 removed from the source, or added to the destination. This ignores
174 the amount of pure code movements within a file. In other words,
175 rearranging lines in a file is not counted as much as other changes.
176 This is the default behavior when no parameter is given.
1c57a627
JH
177`lines`;;
178 Compute the dirstat numbers by doing the regular line-based diff
179 analysis, and summing the removed/added line counts. (For binary
180 files, count 64-byte chunks instead, since binary files have no
181 natural concept of lines). This is a more expensive `--dirstat`
182 behavior than the `changes` behavior, but it does count rearranged
183 lines within a file as much as other changes. The resulting output
184 is consistent with what you get from the other `--*stat` options.
333f3fb0
JH
185`files`;;
186 Compute the dirstat numbers by counting the number of files changed.
187 Each changed file counts equally in the dirstat analysis. This is
188 the computationally cheapest `--dirstat` behavior, since it does
189 not have to look at the file contents at all.
190`cumulative`;;
191 Count changes in a child directory for the parent directory as well.
192 Note that when using `cumulative`, the sum of the percentages
193 reported may exceed 100%. The default (non-cumulative) behavior can
194 be specified with the `noncumulative` parameter.
195<limit>;;
196 An integer parameter specifies a cut-off percent (3% by default).
197 Directories contributing less than this percentage of the changes
198 are not shown in the output.
199--
200+
201Example: The following will count changed files, while ignoring
202directories with less than 10% of the total amount of changed files,
203and accumulating child directory counts in the parent directories:
204`--dirstat=files,10,cumulative`.
fd33777b 205
4ce7aab5
NTND
206--cumulative::
207 Synonym for --dirstat=cumulative
208
209--dirstat-by-file[=<param1,param2>...]::
210 Synonym for --dirstat=files,param1,param2...
211
4bbd261b
SE
212--summary::
213 Output a condensed summary of extended header information
214 such as creations, renames and mode changes.
215
02bc5b03 216ifndef::git-format-patch[]
29353273 217--patch-with-stat::
dce5ef14 218 Synonym for `-p --stat`.
02bc5b03 219endif::git-format-patch[]
29353273 220
d4cb003f 221ifndef::git-format-patch[]
64485b4a 222
dda2d79a 223-z::
5c931c8d
BG
224ifdef::git-log[]
225 Separate the commits with NULs instead of with new newlines.
226+
227Also, when `--raw` or `--numstat` has been given, do not munge
228pathnames and use NULs as output field terminators.
229endif::git-log[]
64485b4a 230ifndef::git-log[]
03aa87ed
CB
231 When `--raw`, `--numstat`, `--name-only` or `--name-status` has been
232 given, do not munge pathnames and use NULs as output field terminators.
5c931c8d 233endif::git-log[]
64485b4a 234+
860cd699
AH
235Without this option, pathnames with "unusual" characters are quoted as
236explained for the configuration variable `core.quotePath` (see
237linkgit:git-config[1]).
dda2d79a
JH
238
239--name-only::
240 Show only names of changed files.
241
946f5f7c 242--name-status::
a6f47b2b
MV
243 Show only names and status of changed files. See the description
244 of the `--diff-filter` option on what the status letters mean.
dda2d79a 245
752c0c24 246--submodule[=<format>]::
fd47ae6a
JK
247 Specify how differences in submodules are shown. When specifying
248 `--submodule=short` the 'short' format is used. This format just
249 shows the names of the commits at the beginning and end of the range.
250 When `--submodule` or `--submodule=log` is specified, the 'log'
251 format is used. This format lists the commits in the range like
252 linkgit:git-submodule[1] `summary` does. When `--submodule=diff`
253 is specified, the 'diff' format is used. This format shows an
254 inline diff of the changes in the submodule contents between the
255 commit range. Defaults to `diff.submodule` or the 'short' format
256 if the config option is unset.
752c0c24 257
73e9da01 258--color[=<when>]::
b5376648 259 Show colored diff.
3d0e75f2
JH
260 `--color` (i.e. without '=<when>') is the same as `--color=always`.
261 '<when>' can be one of `always`, `never`, or `auto`.
6999c540
MG
262ifdef::git-diff[]
263 It can be changed by the `color.ui` and `color.diff`
264 configuration settings.
265endif::git-diff[]
b5376648
JH
266
267--no-color::
6999c540
MG
268 Turn off colored diff.
269ifdef::git-diff[]
270 This can be used to override configuration settings.
271endif::git-diff[]
272 It is the same as `--color=never`.
b5376648 273
61e89eaa
SB
274--color-moved[=<mode>]::
275 Moved lines of code are colored differently.
276ifdef::git-diff[]
277 It can be changed by the `diff.colorMoved` configuration setting.
278endif::git-diff[]
279 The <mode> defaults to 'no' if the option is not given
280 and to 'zebra' if the option with no mode is given.
281 The mode must be one of:
282+
283--
284no::
285 Moved lines are not highlighted.
286default::
287 Is a synonym for `zebra`. This may change to a more sensible mode
288 in the future.
289plain::
290 Any line that is added in one location and was removed
291 in another location will be colored with 'color.diff.newMoved'.
292 Similarly 'color.diff.oldMoved' will be used for removed lines
293 that are added somewhere else in the diff. This mode picks up any
294 moved line, but it is not very useful in a review to determine
295 if a block of code was moved without permutation.
51da15eb 296blocks::
f0b8fb6e
JT
297 Blocks of moved text of at least 20 alphanumeric characters
298 are detected greedily. The detected blocks are
51da15eb
SB
299 painted using either the 'color.diff.{old,new}Moved' color.
300 Adjacent blocks cannot be told apart.
301zebra::
302 Blocks of moved text are detected as in 'blocks' mode. The blocks
303 are painted using either the 'color.diff.{old,new}Moved' color or
61e89eaa 304 'color.diff.{old,new}MovedAlternative'. The change between
f0b8fb6e 305 the two colors indicates that a new block was detected.
e3f2f5f9 306dimmed-zebra::
61e89eaa
SB
307 Similar to 'zebra', but additional dimming of uninteresting parts
308 of moved code is performed. The bordering lines of two adjacent
309 blocks are considered interesting, the rest is uninteresting.
e3f2f5f9 310 `dimmed_zebra` is a deprecated synonym.
61e89eaa
SB
311--
312
b3095712
SB
313--color-moved-ws=<modes>::
314 This configures how white spaces are ignored when performing the
626c0b5d
SB
315 move detection for `--color-moved`.
316ifdef::git-diff[]
317 It can be set by the `diff.colorMovedWS` configuration setting.
318endif::git-diff[]
319 These modes can be given as a comma separated list:
b3095712
SB
320+
321--
322ignore-space-at-eol::
323 Ignore changes in whitespace at EOL.
324ignore-space-change::
325 Ignore changes in amount of whitespace. This ignores whitespace
326 at line end, and considers all other sequences of one or
327 more whitespace characters to be equivalent.
328ignore-all-space::
329 Ignore whitespace when comparing lines. This ignores differences
330 even if one line has whitespace where the other line has none.
ca1f4ae4
SB
331allow-indentation-change::
332 Initially ignore any white spaces in the move detection, then
333 group the moved code blocks only into a block if the change in
334 whitespace is the same per line. This is incompatible with the
335 other modes.
b3095712
SB
336--
337
882749a0
TR
338--word-diff[=<mode>]::
339 Show a word diff, using the <mode> to delimit changed words.
340 By default, words are delimited by whitespace; see
341 `--word-diff-regex` below. The <mode> defaults to 'plain', and
342 must be one of:
343+
344--
345color::
346 Highlight changed words using only colors. Implies `--color`.
347plain::
348 Show words as `[-removed-]` and `{+added+}`. Makes no
349 attempts to escape the delimiters if they appear in the input,
350 so the output may be ambiguous.
351porcelain::
352 Use a special line-based format intended for script
353 consumption. Added/removed/unchanged runs are printed in the
354 usual unified diff format, starting with a `+`/`-`/` `
355 character at the beginning of the line and extending to the
356 end of the line. Newlines in the input are represented by a
357 tilde `~` on a line of its own.
358none::
359 Disable word diff again.
360--
361+
362Note that despite the name of the first mode, color is used to
363highlight the changed parts in all modes if enabled.
364
365--word-diff-regex=<regex>::
366 Use <regex> to decide what a word is, instead of considering
367 runs of non-whitespace to be a word. Also implies
368 `--word-diff` unless it was already enabled.
2b6a5417 369+
882749a0 370Every non-overlapping match of the
c4b252c3
TR
371<regex> is considered a word. Anything between these matches is
372considered whitespace and ignored(!) for the purposes of finding
373differences. You may want to append `|[^[:space:]]` to your regular
374expression to make sure that it matches all non-whitespace characters.
375A match that contains a newline is silently truncated(!) at the
376newline.
80c49c3d 377+
2c15c006
MG
378For example, `--word-diff-regex=.` will treat each character as a word
379and, correspondingly, show differences character by character.
380+
98a4d87b 381The regex can also be set via a diff driver or configuration option, see
1cca17df 382linkgit:gitattributes[5] or linkgit:git-config[1]. Giving it explicitly
98a4d87b
BSSJ
383overrides any diff driver or configuration setting. Diff drivers
384override configuration settings.
882749a0
TR
385
386--color-words[=<regex>]::
387 Equivalent to `--word-diff=color` plus (if a regex was
388 specified) `--word-diff-regex=<regex>`.
d4cb003f 389endif::git-format-patch[]
f59a59e2 390
b5376648
JH
391--no-renames::
392 Turn off rename detection, even when the configuration
393 file gives the default to do so.
394
02bc5b03 395ifndef::git-format-patch[]
16507fcf 396--check::
30211fb6
OA
397 Warn if changes introduce conflict markers or whitespace errors.
398 What are considered whitespace errors is controlled by `core.whitespace`
4f830390 399 configuration. By default, trailing whitespaces (including
7eedad15 400 lines that consist solely of whitespaces) and a space character
4f830390
CK
401 that is immediately followed by a tab character inside the
402 initial indent of the line are considered whitespace errors.
403 Exits with non-zero status if problems are found. Not compatible
404 with --exit-code.
b8767f79
JH
405
406--ws-error-highlight=<kind>::
c0bb6d9c
AH
407 Highlight whitespace errors in the `context`, `old` or `new`
408 lines of the diff. Multiple values are separated by comma,
409 `none` resets previous values, `default` reset the list to
410 `new` and `all` is a shorthand for `old,new,context`. When
411 this option is not given, and the configuration variable
412 `diff.wsErrorHighlight` is not set, only whitespace errors in
413 `new` lines are highlighted. The whitespace errors are colored
7eedad15 414 with `color.diff.whitespace`.
b8767f79 415
02bc5b03 416endif::git-format-patch[]
16507fcf 417
80b1e511 418--full-index::
6457e58c
JM
419 Instead of the first handful of characters, show the full
420 pre- and post-image blob object names on the "index"
421 line when generating patch format output.
b5376648
JH
422
423--binary::
dce5ef14
BG
424 In addition to `--full-index`, output a binary diff that
425 can be applied with `git-apply`.
80b1e511 426
913419fc 427--abbrev[=<n>]::
47dd0d59
JH
428 Instead of showing the full 40-byte hexadecimal object
429 name in diff-raw format output and diff-tree header
323b9db8 430 lines, show only a partial prefix. This is
dce5ef14 431 independent of the `--full-index` option above, which controls
913419fc 432 the diff-patch output format. Non default number of
dce5ef14 433 digits can be specified with `--abbrev=<n>`.
47dd0d59 434
cf958afd 435-B[<n>][/<m>]::
37ab5156 436--break-rewrites[=[<n>][/<m>]]::
cf958afd
MM
437 Break complete rewrite changes into pairs of delete and
438 create. This serves two purposes:
439+
440It affects the way a change that amounts to a total rewrite of a file
441not as a series of deletion and insertion mixed together with a very
442few lines that happen to match textually as the context, but as a
443single deletion of everything old followed by a single insertion of
444everything new, and the number `m` controls this aspect of the -B
445option (defaults to 60%). `-B/70%` specifies that less than 30% of the
2de9b711 446original should remain in the result for Git to consider it a total
cf958afd
MM
447rewrite (i.e. otherwise the resulting patch will be a series of
448deletion and insertion mixed together with context lines).
449+
450When used with -M, a totally-rewritten file is also considered as the
451source of a rename (usually -M only considers a file that disappeared
452as the source of a rename), and the number `n` controls this aspect of
453the -B option (defaults to 50%). `-B20%` specifies that a change with
454addition and deletion compared to 20% or more of the file's size are
455eligible for being picked up as a possible source of a rename to
456another file.
457
458-M[<n>]::
f611ddc7 459--find-renames[=<n>]::
7ffad250 460ifndef::git-log[]
dda2d79a 461 Detect renames.
7ffad250
JK
462endif::git-log[]
463ifdef::git-log[]
464 If generating diffs, detect and report renames for each commit.
465 For following files across renames while traversing history, see
466 `--follow`.
467endif::git-log[]
4c007ae8 468 If `n` is specified, it is a threshold on the similarity
cf958afd 469 index (i.e. amount of addition/deletions compared to the
2de9b711 470 file's size). For example, `-M90%` means Git should consider a
cf958afd 471 delete/add pair to be a rename if more than 90% of the file
31d66aa4
SC
472 hasn't changed. Without a `%` sign, the number is to be read as
473 a fraction, with a decimal point before it. I.e., `-M5` becomes
474 0.5, and is thus the same as `-M50%`. Similarly, `-M05` is
475 the same as `-M5%`. To limit detection to exact renames, use
8240943b 476 `-M100%`. The default similarity index is 50%.
dda2d79a 477
cf958afd 478-C[<n>]::
f611ddc7 479--find-copies[=<n>]::
ca6c0970 480 Detect copies as well as renames. See also `--find-copies-harder`.
cf958afd 481 If `n` is specified, it has the same meaning as for `-M<n>`.
dda2d79a
JH
482
483--find-copies-harder::
ca6c0970 484 For performance reasons, by default, `-C` option finds copies only
a6080a0a 485 if the original file of the copy was modified in the same
f73ae1fc 486 changeset. This flag makes the command
dda2d79a
JH
487 inspect unmodified files as candidates for the source of
488 copy. This is a very expensive operation for large
ca6c0970
JS
489 projects, so use it with caution. Giving more than one
490 `-C` option has the same effect.
dda2d79a 491
467ddc14
JH
492-D::
493--irreversible-delete::
494 Omit the preimage for deletes, i.e. print only the header but not
495 the diff between the preimage and `/dev/null`. The resulting patch
a58088ab 496 is not meant to be applied with `patch` or `git apply`; this is
467ddc14 497 solely for people who want to just concentrate on reviewing the
bc9b7e20 498 text after the change. In addition, the output obviously lacks
467ddc14
JH
499 enough information to apply such a patch in reverse, even manually,
500 hence the name of the option.
501+
502When used together with `-B`, omit also the preimage in the deletion part
503of a delete/create pair.
504
8082d8d3 505-l<num>::
dce5ef14 506 The `-M` and `-C` options require O(n^2) processing time where n
f73ae1fc 507 is the number of potential rename/copy targets. This
8082d8d3 508 option prevents rename/copy detection from running if
f73ae1fc 509 the number of rename/copy targets exceeds the specified
8082d8d3
JH
510 number.
511
d4cb003f 512ifndef::git-format-patch[]
f1037448
YD
513--diff-filter=[(A|C|D|M|R|T|U|X|B)...[*]]::
514 Select only files that are Added (`A`), Copied (`C`),
515 Deleted (`D`), Modified (`M`), Renamed (`R`), have their
516 type (i.e. regular file, symlink, submodule, ...) changed (`T`),
517 are Unmerged (`U`), are
518 Unknown (`X`), or have had their pairing Broken (`B`).
519 Any combination of the filter characters (including none) can be used.
520 When `*` (All-or-none) is added to the combination, all
521 paths are selected if there is any file that matches
522 other criteria in the comparison; if there is no file
523 that matches other criteria, nothing is selected.
16726cfa
JH
524+
525Also, these upper-case letters can be downcased to exclude. E.g.
526`--diff-filter=ad` excludes added and deleted paths.
46af107b
JK
527+
528Note that not all diffs can feature all types. For instance, diffs
529from the index to the working tree can never have Added entries
530(because the set of paths included in the diff is limited by what is in
531the index). Similarly, copied and renamed entries cannot appear if
532detection for those types is disabled.
f1037448 533
dda2d79a 534-S<string>::
5bc3f0b5
RR
535 Look for differences that change the number of occurrences of
536 the specified string (i.e. addition/deletion) in a file.
537 Intended for the scripter's use.
538+
539It is useful when you're looking for an exact block of code (like a
540struct), and want to know the history of that block since it first
541came into being: use the feature iteratively to feed the interesting
542block in the preimage back into `-S`, and keep going until you get the
543very first version of the block.
e0e7cb80
TB
544+
545Binary files are searched as well.
dda2d79a 546
f506b8e8 547-G<regex>::
5bc3f0b5
RR
548 Look for differences whose patch text contains added/removed
549 lines that match <regex>.
550+
551To illustrate the difference between `-S<regex> --pickaxe-regex` and
552`-G<regex>`, consider a commit with the following diff in the same
553file:
554+
555----
556+ return !regexec(regexp, two->ptr, 1, &regmatch, 0);
557...
558- hit = !regexec(regexp, mf2.ptr, 1, &regmatch, 0);
559----
560+
561While `git log -G"regexec\(regexp"` will show this commit, `git log
562-S"regexec\(regexp" --pickaxe-regex` will not (because the number of
563occurrences of that string did not change).
564+
e0e7cb80
TB
565Unless `--text` is supplied patches of binary files without a textconv
566filter will be ignored.
567+
5bc3f0b5
RR
568See the 'pickaxe' entry in linkgit:gitdiffcore[7] for more
569information.
f506b8e8 570
15af58c1
SB
571--find-object=<object-id>::
572 Look for differences that change the number of occurrences of
573 the specified object. Similar to `-S`, just the argument is different
574 in that it doesn't search for a specific string but for a specific
575 object id.
576+
577The object can be a blob or a submodule commit. It implies the `-t` option in
578`git-log` to also find trees.
579
dda2d79a 580--pickaxe-all::
f506b8e8 581 When `-S` or `-G` finds a change, show all the changes in that
f73ae1fc 582 changeset, not just the files that contain the change
dda2d79a
JH
583 in <string>.
584
d01d8c67 585--pickaxe-regex::
5bc3f0b5
RR
586 Treat the <string> given to `-S` as an extended POSIX regular
587 expression to match.
15af58c1 588
d4cb003f 589endif::git-format-patch[]
d01d8c67 590
dda2d79a 591-O<orderfile>::
874444b7 592 Control the order in which files appear in the output.
da0005b8
NTND
593 This overrides the `diff.orderFile` configuration variable
594 (see linkgit:git-config[1]). To cancel `diff.orderFile`,
6d8940b5 595 use `-O/dev/null`.
874444b7
RH
596+
597The output order is determined by the order of glob patterns in
598<orderfile>.
599All files with pathnames that match the first pattern are output
600first, all files with pathnames that match the second pattern (but not
601the first) are output next, and so on.
602All files with pathnames that do not match any pattern are output
603last, as if there was an implicit match-all pattern at the end of the
604file.
605If multiple pathnames have the same rank (they match the same pattern
606but no earlier patterns), their output order relative to each other is
607the normal order.
608+
609<orderfile> is parsed as follows:
610+
611--
612 - Blank lines are ignored, so they can be used as separators for
613 readability.
614
615 - Lines starting with a hash ("`#`") are ignored, so they can be used
616 for comments. Add a backslash ("`\`") to the beginning of the
617 pattern if it starts with a hash.
618
619 - Each other line contains a single pattern.
620--
621+
622Patterns have the same syntax and semantics as patterns used for
c30d4f1b 623fnmatch(3) without the FNM_PATHNAME flag, except a pathname also
874444b7
RH
624matches a pattern if removing any number of the final pathname
625components matches the pattern. For example, the pattern "`foo*bar`"
626matches "`fooasdfbar`" and "`foo/bar/baz/asdf`" but not "`foobarx`".
dda2d79a 627
d4cb003f 628ifndef::git-format-patch[]
dda2d79a 629-R::
5f3aa197 630 Swap two inputs; that is, show differences from index or
dda2d79a
JH
631 on-disk file to tree contents.
632
c0cb4a06 633--relative[=<path>]::
cd676a51
JH
634 When run from a subdirectory of the project, it can be
635 told to exclude changes outside the directory and show
c0cb4a06
JH
636 pathnames relative to it with this option. When you are
637 not in a subdirectory (e.g. in a bare repository), you
638 can name which subdirectory to make the output relative
639 to by giving a <path> as an argument.
d4cb003f 640endif::git-format-patch[]
cd676a51 641
a9e67c8c 642-a::
d507bb15
SF
643--text::
644 Treat all files as text.
645
e9282f02 646--ignore-cr-at-eol::
c30d4f1b 647 Ignore carriage-return at the end of line when doing a comparison.
e9282f02 648
a44a0c99 649--ignore-space-at-eol::
0ac7903e 650 Ignore changes in whitespace at EOL.
a44a0c99 651
a9e67c8c 652-b::
8ebe185b 653--ignore-space-change::
0ac7903e
WC
654 Ignore changes in amount of whitespace. This ignores whitespace
655 at line end, and considers all other sequences of one or
656 more whitespace characters to be equivalent.
8ebe185b 657
a9e67c8c 658-w::
8ebe185b 659--ignore-all-space::
0ac7903e
WC
660 Ignore whitespace when comparing lines. This ignores
661 differences even if one line has whitespace where the other
8ebe185b
JN
662 line has none.
663
36617af7
AP
664--ignore-blank-lines::
665 Ignore changes whose lines are all blank.
666
6d0e674a
RS
667--inter-hunk-context=<lines>::
668 Show the context between diff hunks, up to the specified number
669 of lines, thereby fusing hunks that are close to each other.
c4888677
VN
670 Defaults to `diff.interHunkContext` or 0 if the config option
671 is unset.
6d0e674a 672
14937c2c
RS
673-W::
674--function-context::
675 Show whole surrounding functions of changes.
676
d4cb003f 677ifndef::git-format-patch[]
939ca96b 678ifndef::git-log[]
41bbf9d5
AR
679--exit-code::
680 Make the program exit with codes similar to diff(1).
681 That is, it exits with 1 if there were differences and
682 0 means no differences.
683
2a18c266 684--quiet::
dce5ef14 685 Disable all output of the program. Implies `--exit-code`.
939ca96b 686endif::git-log[]
d4cb003f 687endif::git-format-patch[]
2a18c266 688
72909bef
JS
689--ext-diff::
690 Allow an external diff helper to be executed. If you set an
5162e697
DM
691 external diff driver with linkgit:gitattributes[5], you need
692 to use this option with linkgit:git-log[1] and friends.
72909bef
JS
693
694--no-ext-diff::
695 Disallow external diff drivers.
696
d28790dc
JK
697--textconv::
698--no-textconv::
699 Allow (or disallow) external text conversion filters to be run
700 when comparing binary files. See linkgit:gitattributes[5] for
701 details. Because textconv filters are typically a one-way
702 conversion, the resulting diff is suitable for human
703 consumption, but cannot be applied. For this reason, textconv
704 filters are enabled by default only for linkgit:git-diff[1] and
705 linkgit:git-log[1], but not for linkgit:git-format-patch[1] or
706 diff plumbing commands.
707
dd44d419
JL
708--ignore-submodules[=<when>]::
709 Ignore changes to submodules in the diff generation. <when> can be
b1d04bfc 710 either "none", "untracked", "dirty" or "all", which is the default.
aee9c7d6
JL
711 Using "none" will consider the submodule modified when it either contains
712 untracked or modified files or its HEAD differs from the commit recorded
713 in the superproject and can be used to override any settings of the
302ad7a9 714 'ignore' option in linkgit:git-config[1] or linkgit:gitmodules[5]. When
dd44d419
JL
715 "untracked" is used submodules are not considered dirty when they only
716 contain untracked content (but they are still scanned for modified
717 content). Using "dirty" ignores all changes to the work tree of submodules,
718 only changes to the commits stored in the superproject are shown (this was
719 the behavior until 1.7.0). Using "all" hides all changes to submodules.
50fd9bd8 720
eab9a40b
JS
721--src-prefix=<prefix>::
722 Show the given source prefix instead of "a/".
723
724--dst-prefix=<prefix>::
725 Show the given destination prefix instead of "b/".
726
727--no-prefix::
728 Do not show any source or destination prefix.
729
660e113c
JK
730--line-prefix=<prefix>::
731 Prepend an additional prefix to every line of output.
732
b42b4519
NTND
733--ita-invisible-in-index::
734 By default entries added by "git add -N" appear as an existing
735 empty file in "git diff" and a new file in "git diff --cached".
736 This option makes the entry appear as a new file in "git diff"
737 and non-existent in "git diff --cached". This option could be
738 reverted with `--ita-visible-in-index`. Both options are
739 experimental and could be removed in future.
740
8db9307c 741For more detailed explanation on these common options, see also
6998e4db 742linkgit:gitdiffcore[7].