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215a7ad1 JH |
1 | git-format-patch(1) |
2 | =================== | |
7fc9d69f JH |
3 | |
4 | NAME | |
5 | ---- | |
7bd7f280 | 6 | git-format-patch - Prepare patches for e-mail submission |
7fc9d69f JH |
7 | |
8 | ||
9 | SYNOPSIS | |
10 | -------- | |
353ce815 | 11 | [verse] |
50710ce4 | 12 | 'git format-patch' [-k] [(-o|--output-directory) <dir> | --stdout] |
f693b7e9 | 13 | [--no-thread | --thread[=<style>]] |
50710ce4 SB |
14 | [(--attach|--inline)[=<boundary>] | --no-attach] |
15 | [-s | --signoff] | |
6622d9c7 | 16 | [--signature=<signature> | --no-signature] |
7022650f | 17 | [--signature-file=<file>] |
a5a27c79 DB |
18 | [-n | --numbered | -N | --no-numbered] |
19 | [--start-number <n>] [--numbered-files] | |
20 | [--in-reply-to=Message-Id] [--suffix=.<sfx>] | |
21 | [--ignore-if-in-upstream] | |
68e83a5b JT |
22 | [--rfc] [--subject-prefix=Subject-Prefix] |
23 | [(--reroll-count|-v) <n>] | |
ae6c098f | 24 | [--to=<email>] [--cc=<email>] |
2a4c2607 | 25 | [--[no-]cover-letter] [--quiet] [--notes[=<ref>]] |
126facf8 | 26 | [--interdiff=<previous>] |
8631bf1c | 27 | [--range-diff=<previous> [--creation-factor=<percent>]] |
738e88a2 | 28 | [--progress] |
50710ce4 | 29 | [<common diff options>] |
8a1d076e | 30 | [ <since> | <revision range> ] |
7fc9d69f JH |
31 | |
32 | DESCRIPTION | |
33 | ----------- | |
2052d146 | 34 | |
8a1d076e | 35 | Prepare each commit with its patch in |
2052d146 | 36 | one file per commit, formatted to resemble UNIX mailbox format. |
2052d146 | 37 | The output of this command is convenient for e-mail submission or |
0b444cdb | 38 | for use with 'git am'. |
35ef3a4c | 39 | |
8a1d076e JH |
40 | There are two ways to specify which commits to operate on. |
41 | ||
42 | 1. A single commit, <since>, specifies that the commits leading | |
43 | to the tip of the current branch that are not in the history | |
44 | that leads to the <since> to be output. | |
45 | ||
46 | 2. Generic <revision range> expression (see "SPECIFYING | |
9d83e382 | 47 | REVISIONS" section in linkgit:gitrevisions[7]) means the |
2f6a3823 JH |
48 | commits in the specified range. |
49 | ||
2d266f9d TR |
50 | The first rule takes precedence in the case of a single <commit>. To |
51 | apply the second rule, i.e., format everything since the beginning of | |
9e9f132f | 52 | history up until <commit>, use the `--root` option: `git format-patch |
6cf378f0 | 53 | --root <commit>`. If you want to format only <commit> itself, you |
dce5ef14 | 54 | can do this with `git format-patch -1 <commit>`. |
8a1d076e | 55 | |
e6ff0f42 | 56 | By default, each output file is numbered sequentially from 1, and uses the |
2052d146 | 57 | first line of the commit message (massaged for pathname safety) as |
dce5ef14 | 58 | the filename. With the `--numbered-files` option, the output file names |
e6ff0f42 JL |
59 | will only be numbers, without the first line of the commit appended. |
60 | The names of the output files are printed to standard | |
dce5ef14 | 61 | output, unless the `--stdout` option is specified. |
66f04f38 | 62 | |
dce5ef14 | 63 | If `-o` is specified, output files are created in <dir>. Otherwise |
bc6bf2d7 | 64 | they are created in the current working directory. The default path |
ae9f6311 | 65 | can be set with the `format.outputDirectory` configuration option. |
bc6bf2d7 AK |
66 | The `-o` option takes precedence over `format.outputDirectory`. |
67 | To store patches in the current working directory even when | |
68 | `format.outputDirectory` points elsewhere, use `-o .`. | |
35ef3a4c | 69 | |
52ffe995 JW |
70 | By default, the subject of a single patch is "[PATCH] " followed by |
71 | the concatenation of lines from the commit message up to the first blank | |
72 | line (see the DISCUSSION section of linkgit:git-commit[1]). | |
73 | ||
74 | When multiple patches are output, the subject prefix will instead be | |
75 | "[PATCH n/m] ". To force 1/1 to be added for a single patch, use `-n`. | |
76 | To omit patch numbers from the subject, use `-N`. | |
35ef3a4c | 77 | |
dce5ef14 BG |
78 | If given `--thread`, `git-format-patch` will generate `In-Reply-To` and |
79 | `References` headers to make the second and subsequent patch mails appear | |
80 | as replies to the first mail; this also generates a `Message-Id` header to | |
cc35de84 | 81 | reference. |
7fc9d69f JH |
82 | |
83 | OPTIONS | |
84 | ------- | |
c1a95fa6 | 85 | :git-format-patch: 1 |
b8105375 BG |
86 | include::diff-options.txt[] |
87 | ||
ed5f07a6 | 88 | -<n>:: |
2c642ed8 | 89 | Prepare patches from the topmost <n> commits. |
ed5f07a6 | 90 | |
3240240f SB |
91 | -o <dir>:: |
92 | --output-directory <dir>:: | |
35ef3a4c | 93 | Use <dir> to store the resulting files, instead of the |
efd02016 | 94 | current working directory. |
35ef3a4c | 95 | |
3240240f SB |
96 | -n:: |
97 | --numbered:: | |
a567fdcb | 98 | Name output in '[PATCH n/m]' format, even with a single patch. |
35ef3a4c | 99 | |
3240240f SB |
100 | -N:: |
101 | --no-numbered:: | |
49604a4d BG |
102 | Name output in '[PATCH]' format. |
103 | ||
2052d146 DS |
104 | --start-number <n>:: |
105 | Start numbering the patches at <n> instead of 1. | |
106 | ||
e6ff0f42 JL |
107 | --numbered-files:: |
108 | Output file names will be a simple number sequence | |
109 | without the default first line of the commit appended. | |
e6ff0f42 | 110 | |
3240240f SB |
111 | -k:: |
112 | --keep-subject:: | |
35ef3a4c JH |
113 | Do not strip/add '[PATCH]' from the first line of the |
114 | commit log message. | |
115 | ||
3240240f SB |
116 | -s:: |
117 | --signoff:: | |
6f855371 NW |
118 | Add `Signed-off-by:` line to the commit message, using |
119 | the committer identity of yourself. | |
b2c150d3 | 120 | See the signoff option in linkgit:git-commit[1] for more information. |
6f855371 | 121 | |
54ba6013 | 122 | --stdout:: |
2052d146 DS |
123 | Print all commits to the standard output in mbox format, |
124 | instead of creating a file for each one. | |
7fc9d69f | 125 | |
c112f689 JS |
126 | --attach[=<boundary>]:: |
127 | Create multipart/mixed attachment, the first part of | |
128 | which is the commit message and the patch itself in the | |
dce5ef14 | 129 | second part, with `Content-Disposition: attachment`. |
c112f689 | 130 | |
0db5260b JW |
131 | --no-attach:: |
132 | Disable the creation of an attachment, overriding the | |
133 | configuration setting. | |
134 | ||
c112f689 JS |
135 | --inline[=<boundary>]:: |
136 | Create multipart/mixed attachment, the first part of | |
137 | which is the commit message and the patch itself in the | |
dce5ef14 | 138 | second part, with `Content-Disposition: inline`. |
a15a44ef | 139 | |
30984ed2 | 140 | --thread[=<style>]:: |
f693b7e9 | 141 | --no-thread:: |
dce5ef14 | 142 | Controls addition of `In-Reply-To` and `References` headers to |
f693b7e9 | 143 | make the second and subsequent mails appear as replies to the |
dce5ef14 | 144 | first. Also controls generation of the `Message-Id` header to |
f693b7e9 | 145 | reference. |
30984ed2 TR |
146 | + |
147 | The optional <style> argument can be either `shallow` or `deep`. | |
fd1ff306 | 148 | 'shallow' threading makes every mail a reply to the head of the |
30984ed2 | 149 | series, where the head is chosen from the cover letter, the |
6cf378f0 | 150 | `--in-reply-to`, and the first patch mail, in this order. 'deep' |
f693b7e9 YD |
151 | threading makes every mail a reply to the previous one. |
152 | + | |
ae9f6311 | 153 | The default is `--no-thread`, unless the `format.thread` configuration |
dce5ef14 | 154 | is set. If `--thread` is specified without a style, it defaults to the |
ae9f6311 | 155 | style specified by `format.thread` if any, or else `shallow`. |
f693b7e9 YD |
156 | + |
157 | Beware that the default for 'git send-email' is to thread emails | |
dce5ef14 BG |
158 | itself. If you want `git format-patch` to take care of threading, you |
159 | will want to ensure that threading is disabled for `git send-email`. | |
28ffb898 | 160 | |
da56645d | 161 | --in-reply-to=Message-Id:: |
dce5ef14 | 162 | Make the first mail (or all the mails with `--no-thread`) appear as a |
da56645d JT |
163 | reply to the given Message-Id, which avoids breaking threads to |
164 | provide a new patch series. | |
165 | ||
cc75ad67 DK |
166 | --ignore-if-in-upstream:: |
167 | Do not include a patch that matches a commit in | |
168 | <until>..<since>. This will examine all patches reachable | |
169 | from <since> but not from <until> and compare them with the | |
170 | patches being generated, and any patch that matches is | |
171 | ignored. | |
172 | ||
2d9e4a47 RJ |
173 | --subject-prefix=<Subject-Prefix>:: |
174 | Instead of the standard '[PATCH]' prefix in the subject | |
175 | line, instead use '[<Subject-Prefix>]'. This | |
176 | allows for useful naming of a patch series, and can be | |
dce5ef14 | 177 | combined with the `--numbered` option. |
2d9e4a47 | 178 | |
68e83a5b JT |
179 | --rfc:: |
180 | Alias for `--subject-prefix="RFC PATCH"`. RFC means "Request For | |
181 | Comments"; use this when sending an experimental patch for | |
182 | discussion rather than application. | |
183 | ||
7952ea66 | 184 | -v <n>:: |
4aad08e0 JH |
185 | --reroll-count=<n>:: |
186 | Mark the series as the <n>-th iteration of the topic. The | |
d614f075 | 187 | output filenames have `v<n>` prepended to them, and the |
4aad08e0 JH |
188 | subject prefix ("PATCH" by default, but configurable via the |
189 | `--subject-prefix` option) has ` v<n>` appended to it. E.g. | |
190 | `--reroll-count=4` may produce `v4-0001-add-makefile.patch` | |
191 | file that has "Subject: [PATCH v4 1/20] Add makefile" in it. | |
192 | ||
ae6c098f SD |
193 | --to=<email>:: |
194 | Add a `To:` header to the email headers. This is in addition | |
195 | to any configured headers, and may be used multiple times. | |
b2cd17b9 TR |
196 | The negated form `--no-to` discards all `To:` headers added so |
197 | far (from config or command line). | |
ae6c098f | 198 | |
736cc67d | 199 | --cc=<email>:: |
dce5ef14 | 200 | Add a `Cc:` header to the email headers. This is in addition |
736cc67d | 201 | to any configured headers, and may be used multiple times. |
b2cd17b9 TR |
202 | The negated form `--no-cc` discards all `Cc:` headers added so |
203 | far (from config or command line). | |
736cc67d | 204 | |
a9080475 JK |
205 | --from:: |
206 | --from=<ident>:: | |
207 | Use `ident` in the `From:` header of each commit email. If the | |
208 | author ident of the commit is not textually identical to the | |
209 | provided `ident`, place a `From:` header in the body of the | |
210 | message with the original author. If no `ident` is given, use | |
211 | the committer ident. | |
212 | + | |
213 | Note that this option is only useful if you are actually sending the | |
214 | emails and want to identify yourself as the sender, but retain the | |
215 | original author (and `git am` will correctly pick up the in-body | |
216 | header). Note also that `git send-email` already handles this | |
217 | transformation for you, and this option should not be used if you are | |
218 | feeding the result to `git send-email`. | |
219 | ||
d7d9c2d0 MH |
220 | --add-header=<header>:: |
221 | Add an arbitrary header to the email headers. This is in addition | |
222 | to any configured headers, and may be used multiple times. | |
b2cd17b9 TR |
223 | For example, `--add-header="Organization: git-foo"`. |
224 | The negated form `--no-add-header` discards *all* (`To:`, | |
225 | `Cc:`, and custom) headers added so far from config or command | |
226 | line. | |
d7d9c2d0 | 227 | |
2a4c2607 | 228 | --[no-]cover-letter:: |
f4912391 | 229 | In addition to the patches, generate a cover letter file |
561d2b79 | 230 | containing the branch description, shortlog and the overall diffstat. You can |
f4912391 | 231 | fill in a description in the file before sending it out. |
a5a27c79 | 232 | |
126facf8 | 233 | --interdiff=<previous>:: |
ee6cbf71 ES |
234 | As a reviewer aid, insert an interdiff into the cover letter, |
235 | or as commentary of the lone patch of a 1-patch series, showing | |
126facf8 ES |
236 | the differences between the previous version of the patch series and |
237 | the series currently being formatted. `previous` is a single revision | |
238 | naming the tip of the previous series which shares a common base with | |
239 | the series being formatted (for example `git format-patch | |
240 | --cover-letter --interdiff=feature/v1 -3 feature/v2`). | |
241 | ||
31e2617a ES |
242 | --range-diff=<previous>:: |
243 | As a reviewer aid, insert a range-diff (see linkgit:git-range-diff[1]) | |
40ce4160 ES |
244 | into the cover letter, or as commentary of the lone patch of a |
245 | 1-patch series, showing the differences between the previous | |
31e2617a | 246 | version of the patch series and the series currently being formatted. |
2e6fd71a ES |
247 | `previous` can be a single revision naming the tip of the previous |
248 | series if it shares a common base with the series being formatted (for | |
31e2617a | 249 | example `git format-patch --cover-letter --range-diff=feature/v1 -3 |
2e6fd71a ES |
250 | feature/v2`), or a revision range if the two versions of the series are |
251 | disjoint (for example `git format-patch --cover-letter | |
252 | --range-diff=feature/v1~3..feature/v1 -3 feature/v2`). | |
d8981c3f JH |
253 | + |
254 | Note that diff options passed to the command affect how the primary | |
255 | product of `format-patch` is generated, and they are not passed to | |
256 | the underlying `range-diff` machinery used to generate the cover-letter | |
257 | material (this may change in the future). | |
31e2617a | 258 | |
8631bf1c ES |
259 | --creation-factor=<percent>:: |
260 | Used with `--range-diff`, tweak the heuristic which matches up commits | |
261 | between the previous and current series of patches by adjusting the | |
262 | creation/deletion cost fudge factor. See linkgit:git-range-diff[1]) | |
263 | for details. | |
264 | ||
e422c0cf JH |
265 | --notes[=<ref>]:: |
266 | Append the notes (see linkgit:git-notes[1]) for the commit | |
267 | after the three-dash line. | |
268 | + | |
269 | The expected use case of this is to write supporting explanation for | |
6454d9f1 PO |
270 | the commit that does not belong to the commit log message proper, |
271 | and include it with the patch submission. While one can simply write | |
272 | these explanations after `format-patch` has run but before sending, | |
2de9b711 | 273 | keeping them as Git notes allows them to be maintained between versions |
6454d9f1 PO |
274 | of the patch series (but see the discussion of the `notes.rewrite` |
275 | configuration options in linkgit:git-notes[1] to use this workflow). | |
e422c0cf | 276 | |
2c7ee986 | 277 | --[no-]signature=<signature>:: |
6622d9c7 SB |
278 | Add a signature to each message produced. Per RFC 3676 the signature |
279 | is separated from the body by a line with '-- ' on it. If the | |
2de9b711 | 280 | signature option is omitted the signature defaults to the Git version |
6622d9c7 SB |
281 | number. |
282 | ||
7022650f JM |
283 | --signature-file=<file>:: |
284 | Works just like --signature except the signature is read from a file. | |
285 | ||
03eeaeae | 286 | --suffix=.<sfx>:: |
917a8f89 | 287 | Instead of using `.patch` as the suffix for generated |
02783075 | 288 | filenames, use specified suffix. A common alternative is |
50710ce4 SB |
289 | `--suffix=.txt`. Leaving this empty will remove the `.patch` |
290 | suffix. | |
03eeaeae | 291 | + |
50710ce4 SB |
292 | Note that the leading character does not have to be a dot; for example, |
293 | you can use `--suffix=-patch` to get `0001-description-of-my-change-patch`. | |
03eeaeae | 294 | |
b7df098c | 295 | -q:: |
b781cfaf CMN |
296 | --quiet:: |
297 | Do not print the names of the generated files to standard output. | |
298 | ||
37c22a4b | 299 | --no-binary:: |
50710ce4 SB |
300 | Do not output contents of changes in binary files, instead |
301 | display a notice that those files changed. Patches generated | |
302 | using this option cannot be applied properly, but they are | |
303 | still useful for code review. | |
37c22a4b | 304 | |
3a30aa17 | 305 | --zero-commit:: |
306 | Output an all-zero hash in each patch's From header instead | |
307 | of the hash of the commit. | |
308 | ||
fa2ab86d XY |
309 | --base=<commit>:: |
310 | Record the base tree information to identify the state the | |
311 | patch series applies to. See the BASE TREE INFORMATION section | |
312 | below for details. | |
313 | ||
2d266f9d TR |
314 | --root:: |
315 | Treat the revision argument as a <revision range>, even if it | |
316 | is just a single commit (that would normally be treated as a | |
317 | <since>). Note that root commits included in the specified | |
318 | range are always formatted as creation patches, independently | |
319 | of this flag. | |
320 | ||
738e88a2 KW |
321 | --progress:: |
322 | Show progress reports on stderr as patches are generated. | |
323 | ||
96ce6d26 MM |
324 | CONFIGURATION |
325 | ------------- | |
50710ce4 SB |
326 | You can specify extra mail header lines to be added to each message, |
327 | defaults for the subject prefix and file suffix, number patches when | |
ae6c098f SD |
328 | outputting more than one patch, add "To" or "Cc:" headers, configure |
329 | attachments, and sign off patches with configuration variables. | |
96ce6d26 | 330 | |
917a8f89 | 331 | ------------ |
96ce6d26 | 332 | [format] |
7f9d77f2 | 333 | headers = "Organization: git-foo\n" |
da0005b8 | 334 | subjectPrefix = CHANGE |
7f9d77f2 JN |
335 | suffix = .txt |
336 | numbered = auto | |
ae6c098f | 337 | to = <email> |
fe8928e6 | 338 | cc = <email> |
0db5260b | 339 | attach [ = mime-boundary-string ] |
da0005b8 | 340 | signOff = true |
2a4c2607 | 341 | coverletter = auto |
917a8f89 | 342 | ------------ |
03eeaeae | 343 | |
96ce6d26 | 344 | |
e0d48279 JN |
345 | DISCUSSION |
346 | ---------- | |
347 | ||
348 | The patch produced by 'git format-patch' is in UNIX mailbox format, | |
349 | with a fixed "magic" time stamp to indicate that the file is output | |
350 | from format-patch rather than a real mailbox, like so: | |
351 | ||
352 | ------------ | |
353 | From 8f72bad1baf19a53459661343e21d6491c3908d3 Mon Sep 17 00:00:00 2001 | |
354 | From: Tony Luck <tony.luck@intel.com> | |
355 | Date: Tue, 13 Jul 2010 11:42:54 -0700 | |
356 | Subject: [PATCH] =?UTF-8?q?[IA64]=20Put=20ia64=20config=20files=20on=20the=20?= | |
357 | =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig=20diet?= | |
358 | MIME-Version: 1.0 | |
359 | Content-Type: text/plain; charset=UTF-8 | |
360 | Content-Transfer-Encoding: 8bit | |
361 | ||
362 | arch/arm config files were slimmed down using a python script | |
363 | (See commit c2330e286f68f1c408b4aa6515ba49d57f05beae comment) | |
364 | ||
365 | Do the same for ia64 so we can have sleek & trim looking | |
366 | ... | |
367 | ------------ | |
368 | ||
369 | Typically it will be placed in a MUA's drafts folder, edited to add | |
370 | timely commentary that should not go in the changelog after the three | |
371 | dashes, and then sent as a message whose body, in our example, starts | |
372 | with "arch/arm config files were...". On the receiving end, readers | |
373 | can save interesting patches in a UNIX mailbox and apply them with | |
374 | linkgit:git-am[1]. | |
375 | ||
376 | When a patch is part of an ongoing discussion, the patch generated by | |
377 | 'git format-patch' can be tweaked to take advantage of the 'git am | |
378 | --scissors' feature. After your response to the discussion comes a | |
379 | line that consists solely of "`-- >8 --`" (scissors and perforation), | |
380 | followed by the patch with unnecessary header fields removed: | |
381 | ||
382 | ------------ | |
383 | ... | |
384 | > So we should do such-and-such. | |
385 | ||
386 | Makes sense to me. How about this patch? | |
387 | ||
388 | -- >8 -- | |
389 | Subject: [IA64] Put ia64 config files on the Uwe Kleine-König diet | |
390 | ||
391 | arch/arm config files were slimmed down using a python script | |
392 | ... | |
393 | ------------ | |
394 | ||
395 | When sending a patch this way, most often you are sending your own | |
396 | patch, so in addition to the "`From $SHA1 $magic_timestamp`" marker you | |
397 | should omit `From:` and `Date:` lines from the patch file. The patch | |
398 | title is likely to be different from the subject of the discussion the | |
399 | patch is in response to, so it is likely that you would want to keep | |
400 | the Subject: line, like the example above. | |
401 | ||
57756161 JN |
402 | Checking for patch corruption |
403 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
404 | Many mailers if not set up properly will corrupt whitespace. Here are | |
405 | two common types of corruption: | |
406 | ||
407 | * Empty context lines that do not have _any_ whitespace. | |
408 | ||
409 | * Non-empty context lines that have one extra whitespace at the | |
410 | beginning. | |
411 | ||
412 | One way to test if your MUA is set up correctly is: | |
413 | ||
414 | * Send the patch to yourself, exactly the way you would, except | |
415 | with To: and Cc: lines that do not contain the list and | |
416 | maintainer address. | |
417 | ||
418 | * Save that patch to a file in UNIX mailbox format. Call it a.patch, | |
419 | say. | |
420 | ||
421 | * Apply it: | |
422 | ||
423 | $ git fetch <project> master:test-apply | |
424 | $ git checkout test-apply | |
425 | $ git reset --hard | |
426 | $ git am a.patch | |
427 | ||
428 | If it does not apply correctly, there can be various reasons. | |
429 | ||
430 | * The patch itself does not apply cleanly. That is _bad_ but | |
431 | does not have much to do with your MUA. You might want to rebase | |
432 | the patch with linkgit:git-rebase[1] before regenerating it in | |
433 | this case. | |
434 | ||
435 | * The MUA corrupted your patch; "am" would complain that | |
436 | the patch does not apply. Look in the .git/rebase-apply/ subdirectory and | |
437 | see what 'patch' file contains and check for the common | |
438 | corruption patterns mentioned above. | |
439 | ||
440 | * While at it, check the 'info' and 'final-commit' files as well. | |
441 | If what is in 'final-commit' is not exactly what you would want to | |
442 | see in the commit log message, it is very likely that the | |
443 | receiver would end up hand editing the log message when applying | |
444 | your patch. Things like "Hi, this is my first patch.\n" in the | |
445 | patch e-mail should come after the three-dash line that signals | |
446 | the end of the commit message. | |
447 | ||
dc53151f JN |
448 | MUA-SPECIFIC HINTS |
449 | ------------------ | |
450 | Here are some hints on how to successfully submit patches inline using | |
451 | various mailers. | |
452 | ||
36c10e6d JN |
453 | GMail |
454 | ~~~~~ | |
455 | GMail does not have any way to turn off line wrapping in the web | |
456 | interface, so it will mangle any emails that you send. You can however | |
457 | use "git send-email" and send your patches through the GMail SMTP server, or | |
458 | use any IMAP email client to connect to the google IMAP server and forward | |
459 | the emails through that. | |
460 | ||
461 | For hints on using 'git send-email' to send your patches through the | |
462 | GMail SMTP server, see the EXAMPLE section of linkgit:git-send-email[1]. | |
463 | ||
464 | For hints on submission using the IMAP interface, see the EXAMPLE | |
465 | section of linkgit:git-imap-send[1]. | |
466 | ||
dc53151f JN |
467 | Thunderbird |
468 | ~~~~~~~~~~~ | |
469 | By default, Thunderbird will both wrap emails as well as flag | |
470 | them as being 'format=flowed', both of which will make the | |
2de9b711 | 471 | resulting email unusable by Git. |
dc53151f | 472 | |
b8959605 JS |
473 | There are three different approaches: use an add-on to turn off line wraps, |
474 | configure Thunderbird to not mangle patches, or use | |
dc53151f JN |
475 | an external editor to keep Thunderbird from mangling the patches. |
476 | ||
b8959605 JS |
477 | Approach #1 (add-on) |
478 | ^^^^^^^^^^^^^^^^^^^^ | |
479 | ||
480 | Install the Toggle Word Wrap add-on that is available from | |
481 | https://addons.mozilla.org/thunderbird/addon/toggle-word-wrap/ | |
482 | It adds a menu entry "Enable Word Wrap" in the composer's "Options" menu | |
483 | that you can tick off. Now you can compose the message as you otherwise do | |
484 | (cut + paste, 'git format-patch' | 'git imap-send', etc), but you have to | |
485 | insert line breaks manually in any text that you type. | |
486 | ||
487 | Approach #2 (configuration) | |
dc53151f JN |
488 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
489 | Three steps: | |
490 | ||
491 | 1. Configure your mail server composition as plain text: | |
492 | Edit...Account Settings...Composition & Addressing, | |
493 | uncheck "Compose Messages in HTML". | |
494 | ||
495 | 2. Configure your general composition window to not wrap. | |
496 | + | |
497 | In Thunderbird 2: | |
498 | Edit..Preferences..Composition, wrap plain text messages at 0 | |
499 | + | |
500 | In Thunderbird 3: | |
501 | Edit..Preferences..Advanced..Config Editor. Search for | |
502 | "mail.wrap_long_lines". | |
f737684d RJ |
503 | Toggle it to make sure it is set to `false`. Also, search for |
504 | "mailnews.wraplength" and set the value to 0. | |
dc53151f JN |
505 | |
506 | 3. Disable the use of format=flowed: | |
ba170517 JNA |
507 | Edit..Preferences..Advanced..Config Editor. Search for |
508 | "mailnews.send_plaintext_flowed". | |
509 | Toggle it to make sure it is set to `false`. | |
dc53151f JN |
510 | |
511 | After that is done, you should be able to compose email as you | |
512 | otherwise would (cut + paste, 'git format-patch' | 'git imap-send', etc), | |
513 | and the patches will not be mangled. | |
514 | ||
b8959605 | 515 | Approach #3 (external editor) |
dc53151f JN |
516 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
517 | ||
518 | The following Thunderbird extensions are needed: | |
519 | AboutConfig from http://aboutconfig.mozdev.org/ and | |
520 | External Editor from http://globs.org/articles.php?lng=en&pg=8 | |
521 | ||
522 | 1. Prepare the patch as a text file using your method of choice. | |
523 | ||
524 | 2. Before opening a compose window, use Edit->Account Settings to | |
525 | uncheck the "Compose messages in HTML format" setting in the | |
526 | "Composition & Addressing" panel of the account to be used to | |
527 | send the patch. | |
528 | ||
529 | 3. In the main Thunderbird window, 'before' you open the compose | |
530 | window for the patch, use Tools->about:config to set the | |
531 | following to the indicated values: | |
532 | + | |
533 | ---------- | |
534 | mailnews.send_plaintext_flowed => false | |
535 | mailnews.wraplength => 0 | |
536 | ---------- | |
537 | ||
538 | 4. Open a compose window and click the external editor icon. | |
539 | ||
540 | 5. In the external editor window, read in the patch file and exit | |
541 | the editor normally. | |
542 | ||
543 | Side note: it may be possible to do step 2 with | |
544 | about:config and the following settings but no one's tried yet. | |
545 | ||
546 | ---------- | |
547 | mail.html_compose => false | |
548 | mail.identity.default.compose_html => false | |
549 | mail.identity.id?.compose_html => false | |
550 | ---------- | |
551 | ||
552 | There is a script in contrib/thunderbird-patch-inline which can help | |
553 | you include patches with Thunderbird in an easy way. To use it, do the | |
554 | steps above and then use the script as the external editor. | |
555 | ||
967ab8ef JN |
556 | KMail |
557 | ~~~~~ | |
558 | This should help you to submit patches inline using KMail. | |
559 | ||
560 | 1. Prepare the patch as a text file. | |
561 | ||
562 | 2. Click on New Mail. | |
563 | ||
564 | 3. Go under "Options" in the Composer window and be sure that | |
565 | "Word wrap" is not set. | |
566 | ||
567 | 4. Use Message -> Insert file... and insert the patch. | |
568 | ||
569 | 5. Back in the compose window: add whatever other text you wish to the | |
570 | message, complete the addressing and subject fields, and press send. | |
571 | ||
fa2ab86d XY |
572 | BASE TREE INFORMATION |
573 | --------------------- | |
574 | ||
575 | The base tree information block is used for maintainers or third party | |
576 | testers to know the exact state the patch series applies to. It consists | |
577 | of the 'base commit', which is a well-known commit that is part of the | |
578 | stable part of the project history everybody else works off of, and zero | |
579 | or more 'prerequisite patches', which are well-known patches in flight | |
580 | that is not yet part of the 'base commit' that need to be applied on top | |
581 | of 'base commit' in topological order before the patches can be applied. | |
582 | ||
583 | The 'base commit' is shown as "base-commit: " followed by the 40-hex of | |
584 | the commit object name. A 'prerequisite patch' is shown as | |
585 | "prerequisite-patch-id: " followed by the 40-hex 'patch id', which can | |
586 | be obtained by passing the patch through the `git patch-id --stable` | |
587 | command. | |
588 | ||
589 | Imagine that on top of the public commit P, you applied well-known | |
590 | patches X, Y and Z from somebody else, and then built your three-patch | |
591 | series A, B, C, the history would be like: | |
592 | ||
593 | ................................................ | |
594 | ---P---X---Y---Z---A---B---C | |
595 | ................................................ | |
596 | ||
597 | With `git format-patch --base=P -3 C` (or variants thereof, e.g. with | |
7ba1ceef | 598 | `--cover-letter` or using `Z..C` instead of `-3 C` to specify the |
fa2ab86d XY |
599 | range), the base tree information block is shown at the end of the |
600 | first message the command outputs (either the first patch, or the | |
601 | cover letter), like this: | |
602 | ||
603 | ------------ | |
604 | base-commit: P | |
605 | prerequisite-patch-id: X | |
606 | prerequisite-patch-id: Y | |
607 | prerequisite-patch-id: Z | |
608 | ------------ | |
609 | ||
610 | For non-linear topology, such as | |
611 | ||
612 | ................................................ | |
613 | ---P---X---A---M---C | |
614 | \ / | |
615 | Y---Z---B | |
616 | ................................................ | |
617 | ||
618 | You can also use `git format-patch --base=P -3 C` to generate patches | |
619 | for A, B and C, and the identifiers for P, X, Y, Z are appended at the | |
620 | end of the first message. | |
e0d48279 | 621 | |
3de66517 XY |
622 | If set `--base=auto` in cmdline, it will track base commit automatically, |
623 | the base commit will be the merge base of tip commit of the remote-tracking | |
624 | branch and revision-range specified in cmdline. | |
625 | For a local branch, you need to track a remote branch by `git branch | |
626 | --set-upstream-to` before using this option. | |
627 | ||
28ffb898 JH |
628 | EXAMPLES |
629 | -------- | |
630 | ||
921177f5 | 631 | * Extract commits between revisions R1 and R2, and apply them on top of |
ba170517 | 632 | the current branch using 'git am' to cherry-pick them: |
921177f5 CC |
633 | + |
634 | ------------ | |
467c0197 | 635 | $ git format-patch -k --stdout R1..R2 | git am -3 -k |
921177f5 CC |
636 | ------------ |
637 | ||
638 | * Extract all commits which are in the current branch but not in the | |
ba170517 | 639 | origin branch: |
921177f5 CC |
640 | + |
641 | ------------ | |
642 | $ git format-patch origin | |
643 | ------------ | |
644 | + | |
645 | For each commit a separate file is created in the current directory. | |
646 | ||
647 | * Extract all commits that lead to 'origin' since the inception of the | |
ba170517 | 648 | project: |
921177f5 CC |
649 | + |
650 | ------------ | |
9c67c757 | 651 | $ git format-patch --root origin |
921177f5 CC |
652 | ------------ |
653 | ||
654 | * The same as the previous one: | |
655 | + | |
656 | ------------ | |
657 | $ git format-patch -M -B origin | |
658 | ------------ | |
659 | + | |
660 | Additionally, it detects and handles renames and complete rewrites | |
661 | intelligently to produce a renaming patch. A renaming patch reduces | |
50710ce4 | 662 | the amount of text output, and generally makes it easier to review. |
2de9b711 TA |
663 | Note that non-Git "patch" programs won't understand renaming patches, so |
664 | use it only when you know the recipient uses Git to apply your patch. | |
921177f5 CC |
665 | |
666 | * Extract three topmost commits from the current branch and format them | |
ba170517 | 667 | as e-mailable patches: |
921177f5 CC |
668 | + |
669 | ------------ | |
670 | $ git format-patch -3 | |
671 | ------------ | |
28ffb898 | 672 | |
56ae8df5 | 673 | SEE ALSO |
28ffb898 | 674 | -------- |
5162e697 | 675 | linkgit:git-am[1], linkgit:git-send-email[1] |
28ffb898 | 676 | |
7fc9d69f JH |
677 | GIT |
678 | --- | |
9e1f0a85 | 679 | Part of the linkgit:git[1] suite |