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.
7 ifndef::git-format-patch[]
13 endif::git-format-patch[]
15 ifdef::git-format-patch[]
18 Generate plain patches without any diffstats.
19 endif::git-format-patch[]
21 ifndef::git-format-patch[]
25 Generate patch (see section on generating patches).
26 {git-diff? This is the default.}
27 endif::git-format-patch[]
31 Generate diffs with <n> lines of context instead of
33 ifndef::git-format-patch[]
35 endif::git-format-patch[]
37 ifndef::git-format-patch[]
39 Generate the raw format.
40 {git-diff-core? This is the default.}
41 endif::git-format-patch[]
43 ifndef::git-format-patch[]
45 Synonym for `-p --raw`.
46 endif::git-format-patch[]
49 Generate a diff using the "patience diff" algorithm.
51 --stat[=<width>[,<name-width>]]::
52 Generate a diffstat. You can override the default
53 output width for 80-column terminal by `--stat=<width>`.
54 The width of the filename part can be controlled by
55 giving another width to it separated by a comma.
58 Similar to `\--stat`, but shows number of added and
59 deleted lines in decimal notation and pathname without
60 abbreviation, to make it more machine friendly. For
61 binary files, outputs two `-` instead of saying
65 Output only the last line of the `--stat` format containing total
66 number of modified files, as well as number of added and deleted
70 Output the distribution of relative amount of changes (number of lines added or
71 removed) for each sub-directory. Directories with changes below
72 a cut-off percent (3% by default) are not shown. The cut-off percent
73 can be set with `--dirstat=<limit>`. Changes in a child directory are not
74 counted for the parent directory, unless `--cumulative` is used.
76 Note that the `--dirstat` option computes the changes while ignoring
77 the amount of pure code movements within a file. In other words,
78 rearranging lines in a file is not counted as much as other changes.
80 --dirstat-by-file[=<limit>]::
81 Same as `--dirstat`, but counts changed files instead of lines.
84 Output a condensed summary of extended header information
85 such as creations, renames and mode changes.
87 ifndef::git-format-patch[]
89 Synonym for `-p --stat`.
90 endif::git-format-patch[]
92 ifndef::git-format-patch[]
96 Separate the commits with NULs instead of with new newlines.
98 Also, when `--raw` or `--numstat` has been given, do not munge
99 pathnames and use NULs as output field terminators.
102 When `--raw`, `--numstat`, `--name-only` or `--name-status` has been
103 given, do not munge pathnames and use NULs as output field terminators.
106 Without this option, each pathname output will have TAB, LF, double quotes,
107 and backslash characters replaced with `\t`, `\n`, `\"`, and `\\`,
108 respectively, and the pathname will be enclosed in double quotes if
109 any of those replacements occurred.
112 Show only names of changed files.
115 Show only names and status of changed files. See the description
116 of the `--diff-filter` option on what the status letters mean.
118 --submodule[=<format>]::
119 Chose the output format for submodule differences. <format> can be one of
120 'short' and 'log'. 'short' just shows pairs of commit names, this format
121 is used when this option is not given. 'log' is the default value for this
122 option and lists the commits in that commit range like the 'summary'
123 option of linkgit:git-submodule[1] does.
127 The value must be `always` (the default for `<when>`), `never`, or `auto`.
128 The default value is `never`.
130 It can be changed by the `color.ui` and `color.diff`
131 configuration settings.
135 Turn off colored diff.
137 This can be used to override configuration settings.
139 It is the same as `--color=never`.
141 --word-diff[=<mode>]::
142 Show a word diff, using the <mode> to delimit changed words.
143 By default, words are delimited by whitespace; see
144 `--word-diff-regex` below. The <mode> defaults to 'plain', and
149 Highlight changed words using only colors. Implies `--color`.
151 Show words as `[-removed-]` and `{+added+}`. Makes no
152 attempts to escape the delimiters if they appear in the input,
153 so the output may be ambiguous.
155 Use a special line-based format intended for script
156 consumption. Added/removed/unchanged runs are printed in the
157 usual unified diff format, starting with a `+`/`-`/` `
158 character at the beginning of the line and extending to the
159 end of the line. Newlines in the input are represented by a
160 tilde `~` on a line of its own.
162 Disable word diff again.
165 Note that despite the name of the first mode, color is used to
166 highlight the changed parts in all modes if enabled.
168 --word-diff-regex=<regex>::
169 Use <regex> to decide what a word is, instead of considering
170 runs of non-whitespace to be a word. Also implies
171 `--word-diff` unless it was already enabled.
173 Every non-overlapping match of the
174 <regex> is considered a word. Anything between these matches is
175 considered whitespace and ignored(!) for the purposes of finding
176 differences. You may want to append `|[^[:space:]]` to your regular
177 expression to make sure that it matches all non-whitespace characters.
178 A match that contains a newline is silently truncated(!) at the
181 The regex can also be set via a diff driver or configuration option, see
182 linkgit:gitattributes[1] or linkgit:git-config[1]. Giving it explicitly
183 overrides any diff driver or configuration setting. Diff drivers
184 override configuration settings.
186 --color-words[=<regex>]::
187 Equivalent to `--word-diff=color` plus (if a regex was
188 specified) `--word-diff-regex=<regex>`.
189 endif::git-format-patch[]
192 Turn off rename detection, even when the configuration
193 file gives the default to do so.
195 ifndef::git-format-patch[]
197 Warn if changes introduce trailing whitespace
198 or an indent that uses a space before a tab. Exits with
199 non-zero status if problems are found. Not compatible with
201 endif::git-format-patch[]
204 Instead of the first handful of characters, show the full
205 pre- and post-image blob object names on the "index"
206 line when generating patch format output.
209 In addition to `--full-index`, output a binary diff that
210 can be applied with `git-apply`.
213 Instead of showing the full 40-byte hexadecimal object
214 name in diff-raw format output and diff-tree header
215 lines, show only a partial prefix. This is
216 independent of the `--full-index` option above, which controls
217 the diff-patch output format. Non default number of
218 digits can be specified with `--abbrev=<n>`.
221 --break-rewrites[=[<n>][/<m>]]::
222 Break complete rewrite changes into pairs of delete and
223 create. This serves two purposes:
225 It affects the way a change that amounts to a total rewrite of a file
226 not as a series of deletion and insertion mixed together with a very
227 few lines that happen to match textually as the context, but as a
228 single deletion of everything old followed by a single insertion of
229 everything new, and the number `m` controls this aspect of the -B
230 option (defaults to 60%). `-B/70%` specifies that less than 30% of the
231 original should remain in the result for git to consider it a total
232 rewrite (i.e. otherwise the resulting patch will be a series of
233 deletion and insertion mixed together with context lines).
235 When used with -M, a totally-rewritten file is also considered as the
236 source of a rename (usually -M only considers a file that disappeared
237 as the source of a rename), and the number `n` controls this aspect of
238 the -B option (defaults to 50%). `-B20%` specifies that a change with
239 addition and deletion compared to 20% or more of the file's size are
240 eligible for being picked up as a possible source of a rename to
244 --find-renames[=<n>]::
249 If generating diffs, detect and report renames for each commit.
250 For following files across renames while traversing history, see
253 If `n` is specified, it is a threshold on the similarity
254 index (i.e. amount of addition/deletions compared to the
255 file's size). For example, `-M90%` means git should consider a
256 delete/add pair to be a rename if more than 90% of the file
260 --find-copies[=<n>]::
261 Detect copies as well as renames. See also `--find-copies-harder`.
262 If `n` is specified, it has the same meaning as for `-M<n>`.
264 --find-copies-harder::
265 For performance reasons, by default, `-C` option finds copies only
266 if the original file of the copy was modified in the same
267 changeset. This flag makes the command
268 inspect unmodified files as candidates for the source of
269 copy. This is a very expensive operation for large
270 projects, so use it with caution. Giving more than one
271 `-C` option has the same effect.
274 --irreversible-delete::
275 Omit the preimage for deletes, i.e. print only the header but not
276 the diff between the preimage and `/dev/null`. The resulting patch
277 is not meant to be applied with `patch` nor `git apply`; this is
278 solely for people who want to just concentrate on reviewing the
279 text after the change. In addition, the output obviously lack
280 enough information to apply such a patch in reverse, even manually,
281 hence the name of the option.
283 When used together with `-B`, omit also the preimage in the deletion part
284 of a delete/create pair.
287 The `-M` and `-C` options require O(n^2) processing time where n
288 is the number of potential rename/copy targets. This
289 option prevents rename/copy detection from running if
290 the number of rename/copy targets exceeds the specified
293 ifndef::git-format-patch[]
294 --diff-filter=[(A|C|D|M|R|T|U|X|B)...[*]]::
295 Select only files that are Added (`A`), Copied (`C`),
296 Deleted (`D`), Modified (`M`), Renamed (`R`), have their
297 type (i.e. regular file, symlink, submodule, ...) changed (`T`),
298 are Unmerged (`U`), are
299 Unknown (`X`), or have had their pairing Broken (`B`).
300 Any combination of the filter characters (including none) can be used.
301 When `*` (All-or-none) is added to the combination, all
302 paths are selected if there is any file that matches
303 other criteria in the comparison; if there is no file
304 that matches other criteria, nothing is selected.
307 Look for differences that introduce or remove an instance of
308 <string>. Note that this is different than the string simply
309 appearing in diff output; see the 'pickaxe' entry in
310 linkgit:gitdiffcore[7] for more details.
313 Look for differences whose added or removed line matches
317 When `-S` or `-G` finds a change, show all the changes in that
318 changeset, not just the files that contain the change
322 Make the <string> not a plain string but an extended POSIX
324 endif::git-format-patch[]
327 Output the patch in the order specified in the
328 <orderfile>, which has one shell glob pattern per line.
330 ifndef::git-format-patch[]
332 Swap two inputs; that is, show differences from index or
333 on-disk file to tree contents.
335 --relative[=<path>]::
336 When run from a subdirectory of the project, it can be
337 told to exclude changes outside the directory and show
338 pathnames relative to it with this option. When you are
339 not in a subdirectory (e.g. in a bare repository), you
340 can name which subdirectory to make the output relative
341 to by giving a <path> as an argument.
342 endif::git-format-patch[]
346 Treat all files as text.
348 --ignore-space-at-eol::
349 Ignore changes in whitespace at EOL.
352 --ignore-space-change::
353 Ignore changes in amount of whitespace. This ignores whitespace
354 at line end, and considers all other sequences of one or
355 more whitespace characters to be equivalent.
359 Ignore whitespace when comparing lines. This ignores
360 differences even if one line has whitespace where the other
363 --inter-hunk-context=<lines>::
364 Show the context between diff hunks, up to the specified number
365 of lines, thereby fusing hunks that are close to each other.
367 ifndef::git-format-patch[]
369 Make the program exit with codes similar to diff(1).
370 That is, it exits with 1 if there were differences and
371 0 means no differences.
374 Disable all output of the program. Implies `--exit-code`.
375 endif::git-format-patch[]
378 Allow an external diff helper to be executed. If you set an
379 external diff driver with linkgit:gitattributes[5], you need
380 to use this option with linkgit:git-log[1] and friends.
383 Disallow external diff drivers.
385 --ignore-submodules[=<when>]::
386 Ignore changes to submodules in the diff generation. <when> can be
387 either "none", "untracked", "dirty" or "all", which is the default
388 Using "none" will consider the submodule modified when it either contains
389 untracked or modified files or its HEAD differs from the commit recorded
390 in the superproject and can be used to override any settings of the
391 'ignore' option in linkgit:git-config[1] or linkgit:gitmodules[5]. When
392 "untracked" is used submodules are not considered dirty when they only
393 contain untracked content (but they are still scanned for modified
394 content). Using "dirty" ignores all changes to the work tree of submodules,
395 only changes to the commits stored in the superproject are shown (this was
396 the behavior until 1.7.0). Using "all" hides all changes to submodules.
398 --src-prefix=<prefix>::
399 Show the given source prefix instead of "a/".
401 --dst-prefix=<prefix>::
402 Show the given destination prefix instead of "b/".
405 Do not show any source or destination prefix.
407 For more detailed explanation on these common options, see also
408 linkgit:gitdiffcore[7].