diff options
Diffstat (limited to 'Documentation/git-format-patch.txt')
| -rw-r--r-- | Documentation/git-format-patch.txt | 87 |
1 files changed, 81 insertions, 6 deletions
diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt index 0dac4e9b86..c890328b02 100644 --- a/Documentation/git-format-patch.txt +++ b/Documentation/git-format-patch.txt @@ -19,7 +19,8 @@ SYNOPSIS [--start-number <n>] [--numbered-files] [--in-reply-to=Message-Id] [--suffix=.<sfx>] [--ignore-if-in-upstream] - [--subject-prefix=Subject-Prefix] [(--reroll-count|-v) <n>] + [--rfc] [--subject-prefix=Subject-Prefix] + [(--reroll-count|-v) <n>] [--to=<email>] [--cc=<email>] [--[no-]cover-letter] [--quiet] [--notes[=<ref>]] [<common diff options>] @@ -57,7 +58,11 @@ The names of the output files are printed to standard output, unless the `--stdout` option is specified. If `-o` is specified, output files are created in <dir>. Otherwise -they are created in the current working directory. +they are created in the current working directory. The default path +can be set with the `format.outputDirectory` configuration option. +The `-o` option takes precedence over `format.outputDirectory`. +To store patches in the current working directory even when +`format.outputDirectory` points elsewhere, use `-o .`. By default, the subject of a single patch is "[PATCH] " followed by the concatenation of lines from the commit message up to the first blank @@ -109,6 +114,7 @@ include::diff-options.txt[] --signoff:: Add `Signed-off-by:` line to the commit message, using the committer identity of yourself. + See the signoff option in linkgit:git-commit[1] for more information. --stdout:: Print all commits to the standard output in mbox format, @@ -141,9 +147,9 @@ series, where the head is chosen from the cover letter, the `--in-reply-to`, and the first patch mail, in this order. 'deep' threading makes every mail a reply to the previous one. + -The default is `--no-thread`, unless the 'format.thread' configuration +The default is `--no-thread`, unless the `format.thread` configuration is set. If `--thread` is specified without a style, it defaults to the -style specified by 'format.thread' if any, or else `shallow`. +style specified by `format.thread` if any, or else `shallow`. + Beware that the default for 'git send-email' is to thread emails itself. If you want `git format-patch` to take care of threading, you @@ -167,6 +173,11 @@ will want to ensure that threading is disabled for `git send-email`. allows for useful naming of a patch series, and can be combined with the `--numbered` option. +--rfc:: + Alias for `--subject-prefix="RFC PATCH"`. RFC means "Request For + Comments"; use this when sending an experimental patch for + discussion rather than application. + -v <n>:: --reroll-count=<n>:: Mark the series as the <n>-th iteration of the topic. The @@ -213,7 +224,7 @@ feeding the result to `git send-email`. --[no-]cover-letter:: In addition to the patches, generate a cover letter file - containing the shortlog and the overall diffstat. You can + containing the branch description, shortlog and the overall diffstat. You can fill in a description in the file before sending it out. --notes[=<ref>]:: @@ -228,7 +239,7 @@ keeping them as Git notes allows them to be maintained between versions of the patch series (but see the discussion of the `notes.rewrite` configuration options in linkgit:git-notes[1] to use this workflow). ---[no]-signature=<signature>:: +--[no-]signature=<signature>:: Add a signature to each message produced. Per RFC 3676 the signature is separated from the body by a line with '-- ' on it. If the signature option is omitted the signature defaults to the Git version @@ -256,6 +267,15 @@ you can use `--suffix=-patch` to get `0001-description-of-my-change-patch`. using this option cannot be applied properly, but they are still useful for code review. +--zero-commit:: + Output an all-zero hash in each patch's From header instead + of the hash of the commit. + +--base=<commit>:: + Record the base tree information to identify the state the + patch series applies to. See the BASE TREE INFORMATION section + below for details. + --root:: Treat the revision argument as a <revision range>, even if it is just a single commit (that would normally be treated as a @@ -511,6 +531,61 @@ This should help you to submit patches inline using KMail. 5. Back in the compose window: add whatever other text you wish to the message, complete the addressing and subject fields, and press send. +BASE TREE INFORMATION +--------------------- + +The base tree information block is used for maintainers or third party +testers to know the exact state the patch series applies to. It consists +of the 'base commit', which is a well-known commit that is part of the +stable part of the project history everybody else works off of, and zero +or more 'prerequisite patches', which are well-known patches in flight +that is not yet part of the 'base commit' that need to be applied on top +of 'base commit' in topological order before the patches can be applied. + +The 'base commit' is shown as "base-commit: " followed by the 40-hex of +the commit object name. A 'prerequisite patch' is shown as +"prerequisite-patch-id: " followed by the 40-hex 'patch id', which can +be obtained by passing the patch through the `git patch-id --stable` +command. + +Imagine that on top of the public commit P, you applied well-known +patches X, Y and Z from somebody else, and then built your three-patch +series A, B, C, the history would be like: + +................................................ +---P---X---Y---Z---A---B---C +................................................ + +With `git format-patch --base=P -3 C` (or variants thereof, e.g. with +`--cover-letter` or using `Z..C` instead of `-3 C` to specify the +range), the base tree information block is shown at the end of the +first message the command outputs (either the first patch, or the +cover letter), like this: + +------------ +base-commit: P +prerequisite-patch-id: X +prerequisite-patch-id: Y +prerequisite-patch-id: Z +------------ + +For non-linear topology, such as + +................................................ +---P---X---A---M---C + \ / + Y---Z---B +................................................ + +You can also use `git format-patch --base=P -3 C` to generate patches +for A, B and C, and the identifiers for P, X, Y, Z are appended at the +end of the first message. + +If set `--base=auto` in cmdline, it will track base commit automatically, +the base commit will be the merge base of tip commit of the remote-tracking +branch and revision-range specified in cmdline. +For a local branch, you need to track a remote branch by `git branch +--set-upstream-to` before using this option. EXAMPLES -------- |