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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 | ||
7 | ifndef::git-format-patch[] | |
8 | ifndef::git-diff[] | |
272bd3cf | 9 | ifndef::git-log[] |
c1a95fa6 | 10 | :git-diff-core: 1 |
272bd3cf | 11 | endif::git-log[] |
c1a95fa6 SO |
12 | endif::git-diff[] |
13 | endif::git-format-patch[] | |
14 | ||
15 | ifdef::git-format-patch[] | |
16 | -p:: | |
2cfa8330 | 17 | --no-stat:: |
02bc5b03 | 18 | Generate plain patches without any diffstats. |
c1a95fa6 SO |
19 | endif::git-format-patch[] |
20 | ||
21 | ifndef::git-format-patch[] | |
dda2d79a | 22 | -p:: |
a9e67c8c | 23 | -u:: |
1c9eecff | 24 | --patch:: |
c1a95fa6 | 25 | Generate patch (see section on generating patches). |
d0258b93 JK |
26 | ifdef::git-diff[] |
27 | This is the default. | |
28 | endif::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 | 34 | endif::git-format-patch[] |
7b02c834 | 35 | |
4eb99473 | 36 | -U<n>:: |
4eb99473 RR |
37 | --unified=<n>:: |
38 | Generate diffs with <n> lines of context instead of | |
02bc5b03 BG |
39 | the usual three. |
40 | ifndef::git-format-patch[] | |
dce5ef14 | 41 | Implies `-p`. |
02bc5b03 | 42 | endif::git-format-patch[] |
4eb99473 | 43 | |
d4cb003f | 44 | ifndef::git-format-patch[] |
b5376648 | 45 | --raw:: |
d89df367 MM |
46 | ifndef::git-log[] |
47 | Generate the diff in raw format. | |
d0258b93 JK |
48 | ifdef::git-diff-core[] |
49 | This is the default. | |
50 | endif::git-diff-core[] | |
d89df367 MM |
51 | endif::git-log[] |
52 | ifdef::git-log[] | |
53 | For each commit, show a summary of changes using the raw diff | |
54 | format. See the "RAW OUTPUT FORMAT" section of | |
55 | linkgit:git-diff[1]. This is different from showing the log | |
56 | itself in raw format, which you can achieve with | |
57 | `--format=raw`. | |
58 | endif::git-log[] | |
d4cb003f | 59 | endif::git-format-patch[] |
b5376648 | 60 | |
02bc5b03 | 61 | ifndef::git-format-patch[] |
5c91da25 | 62 | --patch-with-raw:: |
dce5ef14 | 63 | Synonym for `-p --raw`. |
02bc5b03 | 64 | endif::git-format-patch[] |
5c91da25 | 65 | |
bab76141 | 66 | --indent-heuristic:: |
7eedad15 | 67 | Enable the heuristic that shifts diff hunk boundaries to make patches |
bab76141 CMN |
68 | easier to read. This is the default. |
69 | ||
70 | --no-indent-heuristic:: | |
71 | Disable the indent heuristic. | |
5580b271 | 72 | |
81b568c8 JH |
73 | --minimal:: |
74 | Spend extra time to make sure the smallest possible | |
75 | diff is produced. | |
76 | ||
ec74042d | 77 | --patience:: |
34292bdd JS |
78 | Generate a diff using the "patience diff" algorithm. |
79 | ||
d909e076 TR |
80 | --histogram:: |
81 | Generate a diff using the "histogram diff" algorithm. | |
82 | ||
2477ab2e JT |
83 | --anchored=<text>:: |
84 | Generate a diff using the "anchored diff" algorithm. | |
85 | + | |
86 | This option may be specified more than once. | |
87 | + | |
88 | If a line exists in both the source and destination, exists only once, | |
89 | and starts with this text, this algorithm attempts to prevent it from | |
90 | appearing as a deletion or addition in the output. It uses the "patience | |
91 | diff" algorithm internally. | |
92 | ||
07924d4d MP |
93 | --diff-algorithm={patience|minimal|histogram|myers}:: |
94 | Choose a diff algorithm. The variants are as follows: | |
95 | + | |
96 | -- | |
97 | `default`, `myers`;; | |
98 | The basic greedy diff algorithm. Currently, this is the default. | |
99 | `minimal`;; | |
100 | Spend extra time to make sure the smallest possible diff is | |
101 | produced. | |
102 | `patience`;; | |
103 | Use "patience diff" algorithm when generating patches. | |
104 | `histogram`;; | |
105 | This algorithm extends the patience algorithm to "support | |
106 | low-occurrence common elements". | |
107 | -- | |
108 | + | |
7eedad15 | 109 | For instance, if you configured the `diff.algorithm` variable to a |
07924d4d MP |
110 | non-default value and want to use the default one, then you |
111 | have to use `--diff-algorithm=default` option. | |
112 | ||
808e1db2 | 113 | --stat[=<width>[,<name-width>[,<count>]]]:: |
1b058bc3 | 114 | Generate a diffstat. By default, as much space as necessary |
df44483a ZJS |
115 | will be used for the filename part, and the rest for the graph |
116 | part. Maximum width defaults to terminal width, or 80 columns | |
8d8136c3 | 117 | if not connected to a terminal, and can be overridden by |
df44483a ZJS |
118 | `<width>`. The width of the filename part can be limited by |
119 | giving another width `<name-width>` after a comma. The width | |
120 | of the graph part can be limited by using | |
121 | `--stat-graph-width=<width>` (affects all commands generating | |
122 | a stat graph) or by setting `diff.statGraphWidth=<width>` | |
123 | (does not affect `git format-patch`). | |
808e1db2 | 124 | By giving a third parameter `<count>`, you can limit the |
1b058bc3 ZJS |
125 | output to the first `<count>` lines, followed by `...` if |
126 | there are more. | |
86e1ce96 MG |
127 | + |
128 | These parameters can also be set individually with `--stat-width=<width>`, | |
129 | `--stat-name-width=<name-width>` and `--stat-count=<count>`. | |
d75f7952 | 130 | |
ddf88fa6 NTND |
131 | --compact-summary:: |
132 | Output a condensed summary of extended header information such | |
133 | as file creations or deletions ("new" or "gone", optionally "+l" | |
134 | if it's a symlink) and mode changes ("+x" or "-x" for adding | |
135 | or removing executable bit respectively) in diffstat. The | |
1f2abe68 | 136 | information is put between the filename part and the graph |
ddf88fa6 NTND |
137 | part. Implies `--stat`. |
138 | ||
74e2abe5 | 139 | --numstat:: |
6cf378f0 | 140 | Similar to `--stat`, but shows number of added and |
74e2abe5 | 141 | deleted lines in decimal notation and pathname without |
2f89543e JH |
142 | abbreviation, to make it more machine friendly. For |
143 | binary files, outputs two `-` instead of saying | |
144 | `0 0`. | |
74e2abe5 | 145 | |
ebd124c6 | 146 | --shortstat:: |
dce5ef14 | 147 | Output only the last line of the `--stat` format containing total |
ebd124c6 NP |
148 | number of modified files, as well as number of added and deleted |
149 | lines. | |
150 | ||
333f3fb0 JH |
151 | --dirstat[=<param1,param2,...>]:: |
152 | Output the distribution of relative amount of changes for each | |
153 | sub-directory. The behavior of `--dirstat` can be customized by | |
154 | passing it a comma separated list of parameters. | |
2d174951 JH |
155 | The defaults are controlled by the `diff.dirstat` configuration |
156 | variable (see linkgit:git-config[1]). | |
333f3fb0 | 157 | The following parameters are available: |
204f01a2 | 158 | + |
333f3fb0 JH |
159 | -- |
160 | `changes`;; | |
161 | Compute the dirstat numbers by counting the lines that have been | |
162 | removed from the source, or added to the destination. This ignores | |
163 | the amount of pure code movements within a file. In other words, | |
164 | rearranging lines in a file is not counted as much as other changes. | |
165 | This is the default behavior when no parameter is given. | |
1c57a627 JH |
166 | `lines`;; |
167 | Compute the dirstat numbers by doing the regular line-based diff | |
168 | analysis, and summing the removed/added line counts. (For binary | |
169 | files, count 64-byte chunks instead, since binary files have no | |
170 | natural concept of lines). This is a more expensive `--dirstat` | |
171 | behavior than the `changes` behavior, but it does count rearranged | |
172 | lines within a file as much as other changes. The resulting output | |
173 | is consistent with what you get from the other `--*stat` options. | |
333f3fb0 JH |
174 | `files`;; |
175 | Compute the dirstat numbers by counting the number of files changed. | |
176 | Each changed file counts equally in the dirstat analysis. This is | |
177 | the computationally cheapest `--dirstat` behavior, since it does | |
178 | not have to look at the file contents at all. | |
179 | `cumulative`;; | |
180 | Count changes in a child directory for the parent directory as well. | |
181 | Note that when using `cumulative`, the sum of the percentages | |
182 | reported may exceed 100%. The default (non-cumulative) behavior can | |
183 | be specified with the `noncumulative` parameter. | |
184 | <limit>;; | |
185 | An integer parameter specifies a cut-off percent (3% by default). | |
186 | Directories contributing less than this percentage of the changes | |
187 | are not shown in the output. | |
188 | -- | |
189 | + | |
190 | Example: The following will count changed files, while ignoring | |
191 | directories with less than 10% of the total amount of changed files, | |
192 | and accumulating child directory counts in the parent directories: | |
193 | `--dirstat=files,10,cumulative`. | |
fd33777b | 194 | |
4bbd261b SE |
195 | --summary:: |
196 | Output a condensed summary of extended header information | |
197 | such as creations, renames and mode changes. | |
198 | ||
02bc5b03 | 199 | ifndef::git-format-patch[] |
29353273 | 200 | --patch-with-stat:: |
dce5ef14 | 201 | Synonym for `-p --stat`. |
02bc5b03 | 202 | endif::git-format-patch[] |
29353273 | 203 | |
d4cb003f | 204 | ifndef::git-format-patch[] |
64485b4a | 205 | |
dda2d79a | 206 | -z:: |
5c931c8d BG |
207 | ifdef::git-log[] |
208 | Separate the commits with NULs instead of with new newlines. | |
209 | + | |
210 | Also, when `--raw` or `--numstat` has been given, do not munge | |
211 | pathnames and use NULs as output field terminators. | |
212 | endif::git-log[] | |
64485b4a | 213 | ifndef::git-log[] |
03aa87ed CB |
214 | When `--raw`, `--numstat`, `--name-only` or `--name-status` has been |
215 | given, do not munge pathnames and use NULs as output field terminators. | |
5c931c8d | 216 | endif::git-log[] |
64485b4a | 217 | + |
860cd699 AH |
218 | Without this option, pathnames with "unusual" characters are quoted as |
219 | explained for the configuration variable `core.quotePath` (see | |
220 | linkgit:git-config[1]). | |
dda2d79a JH |
221 | |
222 | --name-only:: | |
223 | Show only names of changed files. | |
224 | ||
946f5f7c | 225 | --name-status:: |
a6f47b2b MV |
226 | Show only names and status of changed files. See the description |
227 | of the `--diff-filter` option on what the status letters mean. | |
dda2d79a | 228 | |
752c0c24 | 229 | --submodule[=<format>]:: |
fd47ae6a JK |
230 | Specify how differences in submodules are shown. When specifying |
231 | `--submodule=short` the 'short' format is used. This format just | |
232 | shows the names of the commits at the beginning and end of the range. | |
233 | When `--submodule` or `--submodule=log` is specified, the 'log' | |
234 | format is used. This format lists the commits in the range like | |
235 | linkgit:git-submodule[1] `summary` does. When `--submodule=diff` | |
236 | is specified, the 'diff' format is used. This format shows an | |
237 | inline diff of the changes in the submodule contents between the | |
238 | commit range. Defaults to `diff.submodule` or the 'short' format | |
239 | if the config option is unset. | |
752c0c24 | 240 | |
73e9da01 | 241 | --color[=<when>]:: |
b5376648 | 242 | Show colored diff. |
3d0e75f2 JH |
243 | `--color` (i.e. without '=<when>') is the same as `--color=always`. |
244 | '<when>' can be one of `always`, `never`, or `auto`. | |
6999c540 MG |
245 | ifdef::git-diff[] |
246 | It can be changed by the `color.ui` and `color.diff` | |
247 | configuration settings. | |
248 | endif::git-diff[] | |
b5376648 JH |
249 | |
250 | --no-color:: | |
6999c540 MG |
251 | Turn off colored diff. |
252 | ifdef::git-diff[] | |
253 | This can be used to override configuration settings. | |
254 | endif::git-diff[] | |
255 | It is the same as `--color=never`. | |
b5376648 | 256 | |
61e89eaa SB |
257 | --color-moved[=<mode>]:: |
258 | Moved lines of code are colored differently. | |
259 | ifdef::git-diff[] | |
260 | It can be changed by the `diff.colorMoved` configuration setting. | |
261 | endif::git-diff[] | |
262 | The <mode> defaults to 'no' if the option is not given | |
263 | and to 'zebra' if the option with no mode is given. | |
264 | The mode must be one of: | |
265 | + | |
266 | -- | |
267 | no:: | |
268 | Moved lines are not highlighted. | |
269 | default:: | |
270 | Is a synonym for `zebra`. This may change to a more sensible mode | |
271 | in the future. | |
272 | plain:: | |
273 | Any line that is added in one location and was removed | |
274 | in another location will be colored with 'color.diff.newMoved'. | |
275 | Similarly 'color.diff.oldMoved' will be used for removed lines | |
276 | that are added somewhere else in the diff. This mode picks up any | |
277 | moved line, but it is not very useful in a review to determine | |
278 | if a block of code was moved without permutation. | |
51da15eb | 279 | blocks:: |
f0b8fb6e JT |
280 | Blocks of moved text of at least 20 alphanumeric characters |
281 | are detected greedily. The detected blocks are | |
51da15eb SB |
282 | painted using either the 'color.diff.{old,new}Moved' color. |
283 | Adjacent blocks cannot be told apart. | |
284 | zebra:: | |
285 | Blocks of moved text are detected as in 'blocks' mode. The blocks | |
286 | are painted using either the 'color.diff.{old,new}Moved' color or | |
61e89eaa | 287 | 'color.diff.{old,new}MovedAlternative'. The change between |
f0b8fb6e | 288 | the two colors indicates that a new block was detected. |
e3f2f5f9 | 289 | dimmed-zebra:: |
61e89eaa SB |
290 | Similar to 'zebra', but additional dimming of uninteresting parts |
291 | of moved code is performed. The bordering lines of two adjacent | |
292 | blocks are considered interesting, the rest is uninteresting. | |
e3f2f5f9 | 293 | `dimmed_zebra` is a deprecated synonym. |
61e89eaa SB |
294 | -- |
295 | ||
fbafb7c6 PW |
296 | --no-color-moved:: |
297 | Turn off move detection. This can be used to override configuration | |
298 | settings. It is the same as `--color-moved=no`. | |
299 | ||
b3095712 | 300 | --color-moved-ws=<modes>:: |
748aa1aa | 301 | This configures how whitespace is ignored when performing the |
626c0b5d SB |
302 | move detection for `--color-moved`. |
303 | ifdef::git-diff[] | |
304 | It can be set by the `diff.colorMovedWS` configuration setting. | |
305 | endif::git-diff[] | |
306 | These modes can be given as a comma separated list: | |
b3095712 SB |
307 | + |
308 | -- | |
b73bcbac PW |
309 | no:: |
310 | Do not ignore whitespace when performing move detection. | |
b3095712 SB |
311 | ignore-space-at-eol:: |
312 | Ignore changes in whitespace at EOL. | |
313 | ignore-space-change:: | |
314 | Ignore changes in amount of whitespace. This ignores whitespace | |
315 | at line end, and considers all other sequences of one or | |
316 | more whitespace characters to be equivalent. | |
317 | ignore-all-space:: | |
318 | Ignore whitespace when comparing lines. This ignores differences | |
319 | even if one line has whitespace where the other line has none. | |
ca1f4ae4 | 320 | allow-indentation-change:: |
748aa1aa | 321 | Initially ignore any whitespace in the move detection, then |
ca1f4ae4 SB |
322 | group the moved code blocks only into a block if the change in |
323 | whitespace is the same per line. This is incompatible with the | |
324 | other modes. | |
b3095712 SB |
325 | -- |
326 | ||
b73bcbac PW |
327 | --no-color-moved-ws:: |
328 | Do not ignore whitespace when performing move detection. This can be | |
329 | used to override configuration settings. It is the same as | |
330 | `--color-moved-ws=no`. | |
331 | ||
882749a0 TR |
332 | --word-diff[=<mode>]:: |
333 | Show a word diff, using the <mode> to delimit changed words. | |
334 | By default, words are delimited by whitespace; see | |
335 | `--word-diff-regex` below. The <mode> defaults to 'plain', and | |
336 | must be one of: | |
337 | + | |
338 | -- | |
339 | color:: | |
340 | Highlight changed words using only colors. Implies `--color`. | |
341 | plain:: | |
342 | Show words as `[-removed-]` and `{+added+}`. Makes no | |
343 | attempts to escape the delimiters if they appear in the input, | |
344 | so the output may be ambiguous. | |
345 | porcelain:: | |
346 | Use a special line-based format intended for script | |
347 | consumption. Added/removed/unchanged runs are printed in the | |
348 | usual unified diff format, starting with a `+`/`-`/` ` | |
349 | character at the beginning of the line and extending to the | |
350 | end of the line. Newlines in the input are represented by a | |
351 | tilde `~` on a line of its own. | |
352 | none:: | |
353 | Disable word diff again. | |
354 | -- | |
355 | + | |
356 | Note that despite the name of the first mode, color is used to | |
357 | highlight the changed parts in all modes if enabled. | |
358 | ||
359 | --word-diff-regex=<regex>:: | |
360 | Use <regex> to decide what a word is, instead of considering | |
361 | runs of non-whitespace to be a word. Also implies | |
362 | `--word-diff` unless it was already enabled. | |
2b6a5417 | 363 | + |
882749a0 | 364 | Every non-overlapping match of the |
c4b252c3 TR |
365 | <regex> is considered a word. Anything between these matches is |
366 | considered whitespace and ignored(!) for the purposes of finding | |
367 | differences. You may want to append `|[^[:space:]]` to your regular | |
368 | expression to make sure that it matches all non-whitespace characters. | |
369 | A match that contains a newline is silently truncated(!) at the | |
370 | newline. | |
80c49c3d | 371 | + |
2c15c006 MG |
372 | For example, `--word-diff-regex=.` will treat each character as a word |
373 | and, correspondingly, show differences character by character. | |
374 | + | |
98a4d87b | 375 | The regex can also be set via a diff driver or configuration option, see |
1cca17df | 376 | linkgit:gitattributes[5] or linkgit:git-config[1]. Giving it explicitly |
98a4d87b BSSJ |
377 | overrides any diff driver or configuration setting. Diff drivers |
378 | override configuration settings. | |
882749a0 TR |
379 | |
380 | --color-words[=<regex>]:: | |
381 | Equivalent to `--word-diff=color` plus (if a regex was | |
382 | specified) `--word-diff-regex=<regex>`. | |
d4cb003f | 383 | endif::git-format-patch[] |
f59a59e2 | 384 | |
b5376648 JH |
385 | --no-renames:: |
386 | Turn off rename detection, even when the configuration | |
387 | file gives the default to do so. | |
388 | ||
02bc5b03 | 389 | ifndef::git-format-patch[] |
16507fcf | 390 | --check:: |
30211fb6 OA |
391 | Warn if changes introduce conflict markers or whitespace errors. |
392 | What are considered whitespace errors is controlled by `core.whitespace` | |
4f830390 | 393 | configuration. By default, trailing whitespaces (including |
7eedad15 | 394 | lines that consist solely of whitespaces) and a space character |
4f830390 CK |
395 | that is immediately followed by a tab character inside the |
396 | initial indent of the line are considered whitespace errors. | |
397 | Exits with non-zero status if problems are found. Not compatible | |
398 | with --exit-code. | |
b8767f79 JH |
399 | |
400 | --ws-error-highlight=<kind>:: | |
c0bb6d9c AH |
401 | Highlight whitespace errors in the `context`, `old` or `new` |
402 | lines of the diff. Multiple values are separated by comma, | |
403 | `none` resets previous values, `default` reset the list to | |
404 | `new` and `all` is a shorthand for `old,new,context`. When | |
405 | this option is not given, and the configuration variable | |
406 | `diff.wsErrorHighlight` is not set, only whitespace errors in | |
407 | `new` lines are highlighted. The whitespace errors are colored | |
7eedad15 | 408 | with `color.diff.whitespace`. |
b8767f79 | 409 | |
02bc5b03 | 410 | endif::git-format-patch[] |
16507fcf | 411 | |
80b1e511 | 412 | --full-index:: |
6457e58c JM |
413 | Instead of the first handful of characters, show the full |
414 | pre- and post-image blob object names on the "index" | |
415 | line when generating patch format output. | |
b5376648 JH |
416 | |
417 | --binary:: | |
dce5ef14 BG |
418 | In addition to `--full-index`, output a binary diff that |
419 | can be applied with `git-apply`. | |
80b1e511 | 420 | |
913419fc | 421 | --abbrev[=<n>]:: |
47dd0d59 JH |
422 | Instead of showing the full 40-byte hexadecimal object |
423 | name in diff-raw format output and diff-tree header | |
323b9db8 | 424 | lines, show only a partial prefix. This is |
dce5ef14 | 425 | independent of the `--full-index` option above, which controls |
913419fc | 426 | the diff-patch output format. Non default number of |
dce5ef14 | 427 | digits can be specified with `--abbrev=<n>`. |
47dd0d59 | 428 | |
cf958afd | 429 | -B[<n>][/<m>]:: |
37ab5156 | 430 | --break-rewrites[=[<n>][/<m>]]:: |
cf958afd MM |
431 | Break complete rewrite changes into pairs of delete and |
432 | create. This serves two purposes: | |
433 | + | |
434 | It affects the way a change that amounts to a total rewrite of a file | |
435 | not as a series of deletion and insertion mixed together with a very | |
436 | few lines that happen to match textually as the context, but as a | |
437 | single deletion of everything old followed by a single insertion of | |
438 | everything new, and the number `m` controls this aspect of the -B | |
439 | option (defaults to 60%). `-B/70%` specifies that less than 30% of the | |
2de9b711 | 440 | original should remain in the result for Git to consider it a total |
cf958afd MM |
441 | rewrite (i.e. otherwise the resulting patch will be a series of |
442 | deletion and insertion mixed together with context lines). | |
443 | + | |
444 | When used with -M, a totally-rewritten file is also considered as the | |
445 | source of a rename (usually -M only considers a file that disappeared | |
446 | as the source of a rename), and the number `n` controls this aspect of | |
447 | the -B option (defaults to 50%). `-B20%` specifies that a change with | |
448 | addition and deletion compared to 20% or more of the file's size are | |
449 | eligible for being picked up as a possible source of a rename to | |
450 | another file. | |
451 | ||
452 | -M[<n>]:: | |
f611ddc7 | 453 | --find-renames[=<n>]:: |
7ffad250 | 454 | ifndef::git-log[] |
dda2d79a | 455 | Detect renames. |
7ffad250 JK |
456 | endif::git-log[] |
457 | ifdef::git-log[] | |
458 | If generating diffs, detect and report renames for each commit. | |
459 | For following files across renames while traversing history, see | |
460 | `--follow`. | |
461 | endif::git-log[] | |
4c007ae8 | 462 | If `n` is specified, it is a threshold on the similarity |
cf958afd | 463 | index (i.e. amount of addition/deletions compared to the |
2de9b711 | 464 | file's size). For example, `-M90%` means Git should consider a |
cf958afd | 465 | delete/add pair to be a rename if more than 90% of the file |
31d66aa4 SC |
466 | hasn't changed. Without a `%` sign, the number is to be read as |
467 | a fraction, with a decimal point before it. I.e., `-M5` becomes | |
468 | 0.5, and is thus the same as `-M50%`. Similarly, `-M05` is | |
469 | the same as `-M5%`. To limit detection to exact renames, use | |
8240943b | 470 | `-M100%`. The default similarity index is 50%. |
dda2d79a | 471 | |
cf958afd | 472 | -C[<n>]:: |
f611ddc7 | 473 | --find-copies[=<n>]:: |
ca6c0970 | 474 | Detect copies as well as renames. See also `--find-copies-harder`. |
cf958afd | 475 | If `n` is specified, it has the same meaning as for `-M<n>`. |
dda2d79a JH |
476 | |
477 | --find-copies-harder:: | |
ca6c0970 | 478 | For performance reasons, by default, `-C` option finds copies only |
a6080a0a | 479 | if the original file of the copy was modified in the same |
f73ae1fc | 480 | changeset. This flag makes the command |
dda2d79a JH |
481 | inspect unmodified files as candidates for the source of |
482 | copy. This is a very expensive operation for large | |
ca6c0970 JS |
483 | projects, so use it with caution. Giving more than one |
484 | `-C` option has the same effect. | |
dda2d79a | 485 | |
467ddc14 JH |
486 | -D:: |
487 | --irreversible-delete:: | |
488 | Omit the preimage for deletes, i.e. print only the header but not | |
489 | the diff between the preimage and `/dev/null`. The resulting patch | |
a58088ab | 490 | is not meant to be applied with `patch` or `git apply`; this is |
467ddc14 | 491 | solely for people who want to just concentrate on reviewing the |
bc9b7e20 | 492 | text after the change. In addition, the output obviously lacks |
467ddc14 JH |
493 | enough information to apply such a patch in reverse, even manually, |
494 | hence the name of the option. | |
495 | + | |
496 | When used together with `-B`, omit also the preimage in the deletion part | |
497 | of a delete/create pair. | |
498 | ||
8082d8d3 | 499 | -l<num>:: |
dce5ef14 | 500 | The `-M` and `-C` options require O(n^2) processing time where n |
f73ae1fc | 501 | is the number of potential rename/copy targets. This |
8082d8d3 | 502 | option prevents rename/copy detection from running if |
f73ae1fc | 503 | the number of rename/copy targets exceeds the specified |
8082d8d3 JH |
504 | number. |
505 | ||
d4cb003f | 506 | ifndef::git-format-patch[] |
f1037448 YD |
507 | --diff-filter=[(A|C|D|M|R|T|U|X|B)...[*]]:: |
508 | Select only files that are Added (`A`), Copied (`C`), | |
509 | Deleted (`D`), Modified (`M`), Renamed (`R`), have their | |
510 | type (i.e. regular file, symlink, submodule, ...) changed (`T`), | |
511 | are Unmerged (`U`), are | |
512 | Unknown (`X`), or have had their pairing Broken (`B`). | |
513 | Any combination of the filter characters (including none) can be used. | |
514 | When `*` (All-or-none) is added to the combination, all | |
515 | paths are selected if there is any file that matches | |
516 | other criteria in the comparison; if there is no file | |
517 | that matches other criteria, nothing is selected. | |
16726cfa JH |
518 | + |
519 | Also, these upper-case letters can be downcased to exclude. E.g. | |
520 | `--diff-filter=ad` excludes added and deleted paths. | |
46af107b JK |
521 | + |
522 | Note that not all diffs can feature all types. For instance, diffs | |
523 | from the index to the working tree can never have Added entries | |
524 | (because the set of paths included in the diff is limited by what is in | |
525 | the index). Similarly, copied and renamed entries cannot appear if | |
526 | detection for those types is disabled. | |
f1037448 | 527 | |
dda2d79a | 528 | -S<string>:: |
5bc3f0b5 RR |
529 | Look for differences that change the number of occurrences of |
530 | the specified string (i.e. addition/deletion) in a file. | |
531 | Intended for the scripter's use. | |
532 | + | |
533 | It is useful when you're looking for an exact block of code (like a | |
534 | struct), and want to know the history of that block since it first | |
535 | came into being: use the feature iteratively to feed the interesting | |
536 | block in the preimage back into `-S`, and keep going until you get the | |
537 | very first version of the block. | |
e0e7cb80 TB |
538 | + |
539 | Binary files are searched as well. | |
dda2d79a | 540 | |
f506b8e8 | 541 | -G<regex>:: |
5bc3f0b5 RR |
542 | Look for differences whose patch text contains added/removed |
543 | lines that match <regex>. | |
544 | + | |
545 | To illustrate the difference between `-S<regex> --pickaxe-regex` and | |
546 | `-G<regex>`, consider a commit with the following diff in the same | |
547 | file: | |
548 | + | |
549 | ---- | |
550 | + return !regexec(regexp, two->ptr, 1, ®match, 0); | |
551 | ... | |
552 | - hit = !regexec(regexp, mf2.ptr, 1, ®match, 0); | |
553 | ---- | |
554 | + | |
555 | While `git log -G"regexec\(regexp"` will show this commit, `git log | |
556 | -S"regexec\(regexp" --pickaxe-regex` will not (because the number of | |
557 | occurrences of that string did not change). | |
558 | + | |
e0e7cb80 TB |
559 | Unless `--text` is supplied patches of binary files without a textconv |
560 | filter will be ignored. | |
561 | + | |
5bc3f0b5 RR |
562 | See the 'pickaxe' entry in linkgit:gitdiffcore[7] for more |
563 | information. | |
f506b8e8 | 564 | |
15af58c1 SB |
565 | --find-object=<object-id>:: |
566 | Look for differences that change the number of occurrences of | |
567 | the specified object. Similar to `-S`, just the argument is different | |
568 | in that it doesn't search for a specific string but for a specific | |
569 | object id. | |
570 | + | |
571 | The object can be a blob or a submodule commit. It implies the `-t` option in | |
572 | `git-log` to also find trees. | |
573 | ||
dda2d79a | 574 | --pickaxe-all:: |
f506b8e8 | 575 | When `-S` or `-G` finds a change, show all the changes in that |
f73ae1fc | 576 | changeset, not just the files that contain the change |
dda2d79a JH |
577 | in <string>. |
578 | ||
d01d8c67 | 579 | --pickaxe-regex:: |
5bc3f0b5 RR |
580 | Treat the <string> given to `-S` as an extended POSIX regular |
581 | expression to match. | |
15af58c1 | 582 | |
d4cb003f | 583 | endif::git-format-patch[] |
d01d8c67 | 584 | |
dda2d79a | 585 | -O<orderfile>:: |
874444b7 | 586 | Control the order in which files appear in the output. |
da0005b8 NTND |
587 | This overrides the `diff.orderFile` configuration variable |
588 | (see linkgit:git-config[1]). To cancel `diff.orderFile`, | |
6d8940b5 | 589 | use `-O/dev/null`. |
874444b7 RH |
590 | + |
591 | The output order is determined by the order of glob patterns in | |
592 | <orderfile>. | |
593 | All files with pathnames that match the first pattern are output | |
594 | first, all files with pathnames that match the second pattern (but not | |
595 | the first) are output next, and so on. | |
596 | All files with pathnames that do not match any pattern are output | |
597 | last, as if there was an implicit match-all pattern at the end of the | |
598 | file. | |
599 | If multiple pathnames have the same rank (they match the same pattern | |
600 | but no earlier patterns), their output order relative to each other is | |
601 | the normal order. | |
602 | + | |
603 | <orderfile> is parsed as follows: | |
604 | + | |
605 | -- | |
606 | - Blank lines are ignored, so they can be used as separators for | |
607 | readability. | |
608 | ||
609 | - Lines starting with a hash ("`#`") are ignored, so they can be used | |
610 | for comments. Add a backslash ("`\`") to the beginning of the | |
611 | pattern if it starts with a hash. | |
612 | ||
613 | - Each other line contains a single pattern. | |
614 | -- | |
615 | + | |
616 | Patterns have the same syntax and semantics as patterns used for | |
c30d4f1b | 617 | fnmatch(3) without the FNM_PATHNAME flag, except a pathname also |
874444b7 RH |
618 | matches a pattern if removing any number of the final pathname |
619 | components matches the pattern. For example, the pattern "`foo*bar`" | |
620 | matches "`fooasdfbar`" and "`foo/bar/baz/asdf`" but not "`foobarx`". | |
dda2d79a | 621 | |
d4cb003f | 622 | ifndef::git-format-patch[] |
dda2d79a | 623 | -R:: |
5f3aa197 | 624 | Swap two inputs; that is, show differences from index or |
dda2d79a JH |
625 | on-disk file to tree contents. |
626 | ||
c0cb4a06 | 627 | --relative[=<path>]:: |
cd676a51 JH |
628 | When run from a subdirectory of the project, it can be |
629 | told to exclude changes outside the directory and show | |
c0cb4a06 JH |
630 | pathnames relative to it with this option. When you are |
631 | not in a subdirectory (e.g. in a bare repository), you | |
632 | can name which subdirectory to make the output relative | |
633 | to by giving a <path> as an argument. | |
d4cb003f | 634 | endif::git-format-patch[] |
cd676a51 | 635 | |
a9e67c8c | 636 | -a:: |
d507bb15 SF |
637 | --text:: |
638 | Treat all files as text. | |
639 | ||
e9282f02 | 640 | --ignore-cr-at-eol:: |
c30d4f1b | 641 | Ignore carriage-return at the end of line when doing a comparison. |
e9282f02 | 642 | |
a44a0c99 | 643 | --ignore-space-at-eol:: |
0ac7903e | 644 | Ignore changes in whitespace at EOL. |
a44a0c99 | 645 | |
a9e67c8c | 646 | -b:: |
8ebe185b | 647 | --ignore-space-change:: |
0ac7903e WC |
648 | Ignore changes in amount of whitespace. This ignores whitespace |
649 | at line end, and considers all other sequences of one or | |
650 | more whitespace characters to be equivalent. | |
8ebe185b | 651 | |
a9e67c8c | 652 | -w:: |
8ebe185b | 653 | --ignore-all-space:: |
0ac7903e WC |
654 | Ignore whitespace when comparing lines. This ignores |
655 | differences even if one line has whitespace where the other | |
8ebe185b JN |
656 | line has none. |
657 | ||
36617af7 AP |
658 | --ignore-blank-lines:: |
659 | Ignore changes whose lines are all blank. | |
660 | ||
6d0e674a RS |
661 | --inter-hunk-context=<lines>:: |
662 | Show the context between diff hunks, up to the specified number | |
663 | of lines, thereby fusing hunks that are close to each other. | |
c4888677 VN |
664 | Defaults to `diff.interHunkContext` or 0 if the config option |
665 | is unset. | |
6d0e674a | 666 | |
14937c2c RS |
667 | -W:: |
668 | --function-context:: | |
669 | Show whole surrounding functions of changes. | |
670 | ||
d4cb003f | 671 | ifndef::git-format-patch[] |
939ca96b | 672 | ifndef::git-log[] |
41bbf9d5 AR |
673 | --exit-code:: |
674 | Make the program exit with codes similar to diff(1). | |
675 | That is, it exits with 1 if there were differences and | |
676 | 0 means no differences. | |
677 | ||
2a18c266 | 678 | --quiet:: |
dce5ef14 | 679 | Disable all output of the program. Implies `--exit-code`. |
939ca96b | 680 | endif::git-log[] |
d4cb003f | 681 | endif::git-format-patch[] |
2a18c266 | 682 | |
72909bef JS |
683 | --ext-diff:: |
684 | Allow an external diff helper to be executed. If you set an | |
5162e697 DM |
685 | external diff driver with linkgit:gitattributes[5], you need |
686 | to use this option with linkgit:git-log[1] and friends. | |
72909bef JS |
687 | |
688 | --no-ext-diff:: | |
689 | Disallow external diff drivers. | |
690 | ||
d28790dc JK |
691 | --textconv:: |
692 | --no-textconv:: | |
693 | Allow (or disallow) external text conversion filters to be run | |
694 | when comparing binary files. See linkgit:gitattributes[5] for | |
695 | details. Because textconv filters are typically a one-way | |
696 | conversion, the resulting diff is suitable for human | |
697 | consumption, but cannot be applied. For this reason, textconv | |
698 | filters are enabled by default only for linkgit:git-diff[1] and | |
699 | linkgit:git-log[1], but not for linkgit:git-format-patch[1] or | |
700 | diff plumbing commands. | |
701 | ||
dd44d419 JL |
702 | --ignore-submodules[=<when>]:: |
703 | Ignore changes to submodules in the diff generation. <when> can be | |
b1d04bfc | 704 | either "none", "untracked", "dirty" or "all", which is the default. |
aee9c7d6 JL |
705 | Using "none" will consider the submodule modified when it either contains |
706 | untracked or modified files or its HEAD differs from the commit recorded | |
707 | in the superproject and can be used to override any settings of the | |
302ad7a9 | 708 | 'ignore' option in linkgit:git-config[1] or linkgit:gitmodules[5]. When |
dd44d419 JL |
709 | "untracked" is used submodules are not considered dirty when they only |
710 | contain untracked content (but they are still scanned for modified | |
711 | content). Using "dirty" ignores all changes to the work tree of submodules, | |
712 | only changes to the commits stored in the superproject are shown (this was | |
713 | the behavior until 1.7.0). Using "all" hides all changes to submodules. | |
50fd9bd8 | 714 | |
eab9a40b JS |
715 | --src-prefix=<prefix>:: |
716 | Show the given source prefix instead of "a/". | |
717 | ||
718 | --dst-prefix=<prefix>:: | |
719 | Show the given destination prefix instead of "b/". | |
720 | ||
721 | --no-prefix:: | |
722 | Do not show any source or destination prefix. | |
723 | ||
660e113c JK |
724 | --line-prefix=<prefix>:: |
725 | Prepend an additional prefix to every line of output. | |
726 | ||
b42b4519 NTND |
727 | --ita-invisible-in-index:: |
728 | By default entries added by "git add -N" appear as an existing | |
729 | empty file in "git diff" and a new file in "git diff --cached". | |
730 | This option makes the entry appear as a new file in "git diff" | |
731 | and non-existent in "git diff --cached". This option could be | |
732 | reverted with `--ita-visible-in-index`. Both options are | |
733 | experimental and could be removed in future. | |
734 | ||
8db9307c | 735 | For more detailed explanation on these common options, see also |
6998e4db | 736 | linkgit:gitdiffcore[7]. |