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 --dirstat-by-file[=<limit>]::
77 Same as `--dirstat`, but counts changed files instead of lines.
80 Output a condensed summary of extended header information
81 such as creations, renames and mode changes.
83 ifndef::git-format-patch[]
85 Synonym for `-p --stat`.
86 endif::git-format-patch[]
88 ifndef::git-format-patch[]
92 Separate the commits with NULs instead of with new newlines.
94 Also, when `--raw` or `--numstat` has been given, do not munge
95 pathnames and use NULs as output field terminators.
98 When `--raw`, `--numstat`, `--name-only` or `--name-status` has been
99 given, do not munge pathnames and use NULs as output field terminators.
102 Without this option, each pathname output will have TAB, LF, double quotes,
103 and backslash characters replaced with `\t`, `\n`, `\"`, and `\\`,
104 respectively, and the pathname will be enclosed in double quotes if
105 any of those replacements occurred.
108 Show only names of changed files.
111 Show only names and status of changed files. See the description
112 of the `--diff-filter` option on what the status letters mean.
114 --submodule[=<format>]::
115 Chose the output format for submodule differences. <format> can be one of
116 'short' and 'log'. 'short' just shows pairs of commit names, this format
117 is used when this option is not given. 'log' is the default value for this
118 option and lists the commits in that commit range like the 'summary'
119 option of linkgit:git-submodule[1] does.
123 The value must be always (the default), never, or auto.
126 Turn off colored diff, even when the configuration file
127 gives the default to color output.
128 Same as `--color=never`.
130 --word-diff[=<mode>]::
131 Show a word diff, using the <mode> to delimit changed words.
132 By default, words are delimited by whitespace; see
133 `--word-diff-regex` below. The <mode> defaults to 'plain', and
138 Highlight changed words using only colors. Implies `--color`.
140 Show words as `[-removed-]` and `{+added+}`. Makes no
141 attempts to escape the delimiters if they appear in the input,
142 so the output may be ambiguous.
144 Use a special line-based format intended for script
145 consumption. Added/removed/unchanged runs are printed in the
146 usual unified diff format, starting with a `+`/`-`/` `
147 character at the beginning of the line and extending to the
148 end of the line. Newlines in the input are represented by a
149 tilde `~` on a line of its own.
151 Disable word diff again.
154 Note that despite the name of the first mode, color is used to
155 highlight the changed parts in all modes if enabled.
157 --word-diff-regex=<regex>::
158 Use <regex> to decide what a word is, instead of considering
159 runs of non-whitespace to be a word. Also implies
160 `--word-diff` unless it was already enabled.
162 Every non-overlapping match of the
163 <regex> is considered a word. Anything between these matches is
164 considered whitespace and ignored(!) for the purposes of finding
165 differences. You may want to append `|[^[:space:]]` to your regular
166 expression to make sure that it matches all non-whitespace characters.
167 A match that contains a newline is silently truncated(!) at the
170 The regex can also be set via a diff driver or configuration option, see
171 linkgit:gitattributes[1] or linkgit:git-config[1]. Giving it explicitly
172 overrides any diff driver or configuration setting. Diff drivers
173 override configuration settings.
175 --color-words[=<regex>]::
176 Equivalent to `--word-diff=color` plus (if a regex was
177 specified) `--word-diff-regex=<regex>`.
178 endif::git-format-patch[]
181 Turn off rename detection, even when the configuration
182 file gives the default to do so.
184 ifndef::git-format-patch[]
186 Warn if changes introduce trailing whitespace
187 or an indent that uses a space before a tab. Exits with
188 non-zero status if problems are found. Not compatible with
190 endif::git-format-patch[]
193 Instead of the first handful of characters, show the full
194 pre- and post-image blob object names on the "index"
195 line when generating patch format output.
198 In addition to `--full-index`, output a binary diff that
199 can be applied with `git-apply`.
202 Instead of showing the full 40-byte hexadecimal object
203 name in diff-raw format output and diff-tree header
204 lines, show only a partial prefix. This is
205 independent of the `--full-index` option above, which controls
206 the diff-patch output format. Non default number of
207 digits can be specified with `--abbrev=<n>`.
210 Break complete rewrite changes into pairs of delete and
211 create. This serves two purposes:
213 It affects the way a change that amounts to a total rewrite of a file
214 not as a series of deletion and insertion mixed together with a very
215 few lines that happen to match textually as the context, but as a
216 single deletion of everything old followed by a single insertion of
217 everything new, and the number `m` controls this aspect of the -B
218 option (defaults to 60%). `-B/70%` specifies that less than 30% of the
219 original should remain in the result for git to consider it a total
220 rewrite (i.e. otherwise the resulting patch will be a series of
221 deletion and insertion mixed together with context lines).
223 When used with -M, a totally-rewritten file is also considered as the
224 source of a rename (usually -M only considers a file that disappeared
225 as the source of a rename), and the number `n` controls this aspect of
226 the -B option (defaults to 50%). `-B20%` specifies that a change with
227 addition and deletion compared to 20% or more of the file's size are
228 eligible for being picked up as a possible source of a rename to
236 If generating diffs, detect and report renames for each commit.
237 For following files across renames while traversing history, see
240 If `n` is specified, it is a is a threshold on the similarity
241 index (i.e. amount of addition/deletions compared to the
242 file's size). For example, `-M90%` means git should consider a
243 delete/add pair to be a rename if more than 90% of the file
247 Detect copies as well as renames. See also `--find-copies-harder`.
248 If `n` is specified, it has the same meaning as for `-M<n>`.
250 ifndef::git-format-patch[]
251 --diff-filter=[ACDMRTUXB*]::
252 Select only files that are Added (`A`), Copied (`C`),
253 Deleted (`D`), Modified (`M`), Renamed (`R`), have their
254 type (i.e. regular file, symlink, submodule, ...) changed (`T`),
255 are Unmerged (`U`), are
256 Unknown (`X`), or have had their pairing Broken (`B`).
257 Any combination of the filter characters may be used.
258 When `*` (All-or-none) is added to the combination, all
259 paths are selected if there is any file that matches
260 other criteria in the comparison; if there is no file
261 that matches other criteria, nothing is selected.
262 endif::git-format-patch[]
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 The `-M` and `-C` options require O(n^2) processing time where n
275 is the number of potential rename/copy targets. This
276 option prevents rename/copy detection from running if
277 the number of rename/copy targets exceeds the specified
280 ifndef::git-format-patch[]
282 Look for differences that introduce or remove an instance of
283 <string>. Note that this is different than the string simply
284 appearing in diff output; see the 'pickaxe' entry in
285 linkgit:gitdiffcore[7] for more details.
288 When `-S` finds a change, show all the changes in that
289 changeset, not just the files that contain the change
293 Make the <string> not a plain string but an extended POSIX
295 endif::git-format-patch[]
298 Output the patch in the order specified in the
299 <orderfile>, which has one shell glob pattern per line.
301 ifndef::git-format-patch[]
303 Swap two inputs; that is, show differences from index or
304 on-disk file to tree contents.
306 --relative[=<path>]::
307 When run from a subdirectory of the project, it can be
308 told to exclude changes outside the directory and show
309 pathnames relative to it with this option. When you are
310 not in a subdirectory (e.g. in a bare repository), you
311 can name which subdirectory to make the output relative
312 to by giving a <path> as an argument.
313 endif::git-format-patch[]
317 Treat all files as text.
319 --ignore-space-at-eol::
320 Ignore changes in whitespace at EOL.
323 --ignore-space-change::
324 Ignore changes in amount of whitespace. This ignores whitespace
325 at line end, and considers all other sequences of one or
326 more whitespace characters to be equivalent.
330 Ignore whitespace when comparing lines. This ignores
331 differences even if one line has whitespace where the other
334 --inter-hunk-context=<lines>::
335 Show the context between diff hunks, up to the specified number
336 of lines, thereby fusing hunks that are close to each other.
338 ifndef::git-format-patch[]
340 Make the program exit with codes similar to diff(1).
341 That is, it exits with 1 if there were differences and
342 0 means no differences.
345 Disable all output of the program. Implies `--exit-code`.
346 endif::git-format-patch[]
349 Allow an external diff helper to be executed. If you set an
350 external diff driver with linkgit:gitattributes[5], you need
351 to use this option with linkgit:git-log[1] and friends.
354 Disallow external diff drivers.
356 --ignore-submodules[=<when>]::
357 Ignore changes to submodules in the diff generation. <when> can be
358 either "none", "untracked", "dirty" or "all", which is the default
359 Using "none" will consider the submodule modified when it either contains
360 untracked or modified files or its HEAD differs from the commit recorded
361 in the superproject and can be used to override any settings of the
362 'ignore' option in linkgit:git-config[1] or linkgit:gitmodules[5]. When
363 "untracked" is used submodules are not considered dirty when they only
364 contain untracked content (but they are still scanned for modified
365 content). Using "dirty" ignores all changes to the work tree of submodules,
366 only changes to the commits stored in the superproject are shown (this was
367 the behavior until 1.7.0). Using "all" hides all changes to submodules.
369 --src-prefix=<prefix>::
370 Show the given source prefix instead of "a/".
372 --dst-prefix=<prefix>::
373 Show the given destination prefix instead of "b/".
376 Do not show any source or destination prefix.
378 For more detailed explanation on these common options, see also
379 linkgit:gitdiffcore[7].