зеркало из https://github.com/microsoft/git.git
340 строки
11 KiB
Plaintext
340 строки
11 KiB
Plaintext
git-interpret-trailers(1)
|
|
=========================
|
|
|
|
NAME
|
|
----
|
|
git-interpret-trailers - help add structured information into commit messages
|
|
|
|
SYNOPSIS
|
|
--------
|
|
[verse]
|
|
'git interpret-trailers' [--in-place] [--trim-empty] [(--trailer <token>[(=|:)<value>])...] [<file>...]
|
|
|
|
DESCRIPTION
|
|
-----------
|
|
Help adding 'trailers' lines, that look similar to RFC 822 e-mail
|
|
headers, at the end of the otherwise free-form part of a commit
|
|
message.
|
|
|
|
This command reads some patches or commit messages from either the
|
|
<file> arguments or the standard input if no <file> is specified. Then
|
|
this command applies the arguments passed using the `--trailer`
|
|
option, if any, to the commit message part of each input file. The
|
|
result is emitted on the standard output.
|
|
|
|
Some configuration variables control the way the `--trailer` arguments
|
|
are applied to each commit message and the way any existing trailer in
|
|
the commit message is changed. They also make it possible to
|
|
automatically add some trailers.
|
|
|
|
By default, a '<token>=<value>' or '<token>:<value>' argument given
|
|
using `--trailer` will be appended after the existing trailers only if
|
|
the last trailer has a different (<token>, <value>) pair (or if there
|
|
is no existing trailer). The <token> and <value> parts will be trimmed
|
|
to remove starting and trailing whitespace, and the resulting trimmed
|
|
<token> and <value> will appear in the message like this:
|
|
|
|
------------------------------------------------
|
|
token: value
|
|
------------------------------------------------
|
|
|
|
This means that the trimmed <token> and <value> will be separated by
|
|
`': '` (one colon followed by one space).
|
|
|
|
By default the new trailer will appear at the end of all the existing
|
|
trailers. If there is no existing trailer, the new trailer will appear
|
|
after the commit message part of the output, and, if there is no line
|
|
with only spaces at the end of the commit message part, one blank line
|
|
will be added before the new trailer.
|
|
|
|
Existing trailers are extracted from the input message by looking for
|
|
a group of one or more lines that (i) are all trailers, or (ii) contains at
|
|
least one Git-generated or user-configured trailer and consists of at
|
|
least 25% trailers.
|
|
The group must be preceded by one or more empty (or whitespace-only) lines.
|
|
The group must either be at the end of the message or be the last
|
|
non-whitespace lines before a line that starts with '---'. Such three
|
|
minus signs start the patch part of the message.
|
|
|
|
When reading trailers, there can be whitespaces after the
|
|
token, the separator and the value. There can also be whitespaces
|
|
inside the token and the value. The value may be split over multiple lines with
|
|
each subsequent line starting with whitespace, like the "folding" in RFC 822.
|
|
|
|
Note that 'trailers' do not follow and are not intended to follow many
|
|
rules for RFC 822 headers. For example they do not follow
|
|
the encoding rules and probably many other rules.
|
|
|
|
OPTIONS
|
|
-------
|
|
--in-place::
|
|
Edit the files in place.
|
|
|
|
--trim-empty::
|
|
If the <value> part of any trailer contains only whitespace,
|
|
the whole trailer will be removed from the resulting message.
|
|
This applies to existing trailers as well as new trailers.
|
|
|
|
--trailer <token>[(=|:)<value>]::
|
|
Specify a (<token>, <value>) pair that should be applied as a
|
|
trailer to the input messages. See the description of this
|
|
command.
|
|
|
|
CONFIGURATION VARIABLES
|
|
-----------------------
|
|
|
|
trailer.separators::
|
|
This option tells which characters are recognized as trailer
|
|
separators. By default only ':' is recognized as a trailer
|
|
separator, except that '=' is always accepted on the command
|
|
line for compatibility with other git commands.
|
|
+
|
|
The first character given by this option will be the default character
|
|
used when another separator is not specified in the config for this
|
|
trailer.
|
|
+
|
|
For example, if the value for this option is "%=$", then only lines
|
|
using the format '<token><sep><value>' with <sep> containing '%', '='
|
|
or '$' and then spaces will be considered trailers. And '%' will be
|
|
the default separator used, so by default trailers will appear like:
|
|
'<token>% <value>' (one percent sign and one space will appear between
|
|
the token and the value).
|
|
|
|
trailer.where::
|
|
This option tells where a new trailer will be added.
|
|
+
|
|
This can be `end`, which is the default, `start`, `after` or `before`.
|
|
+
|
|
If it is `end`, then each new trailer will appear at the end of the
|
|
existing trailers.
|
|
+
|
|
If it is `start`, then each new trailer will appear at the start,
|
|
instead of the end, of the existing trailers.
|
|
+
|
|
If it is `after`, then each new trailer will appear just after the
|
|
last trailer with the same <token>.
|
|
+
|
|
If it is `before`, then each new trailer will appear just before the
|
|
first trailer with the same <token>.
|
|
|
|
trailer.ifexists::
|
|
This option makes it possible to choose what action will be
|
|
performed when there is already at least one trailer with the
|
|
same <token> in the message.
|
|
+
|
|
The valid values for this option are: `addIfDifferentNeighbor` (this
|
|
is the default), `addIfDifferent`, `add`, `replace` or `doNothing`.
|
|
+
|
|
With `addIfDifferentNeighbor`, a new trailer will be added only if no
|
|
trailer with the same (<token>, <value>) pair is above or below the line
|
|
where the new trailer will be added.
|
|
+
|
|
With `addIfDifferent`, a new trailer will be added only if no trailer
|
|
with the same (<token>, <value>) pair is already in the message.
|
|
+
|
|
With `add`, a new trailer will be added, even if some trailers with
|
|
the same (<token>, <value>) pair are already in the message.
|
|
+
|
|
With `replace`, an existing trailer with the same <token> will be
|
|
deleted and the new trailer will be added. The deleted trailer will be
|
|
the closest one (with the same <token>) to the place where the new one
|
|
will be added.
|
|
+
|
|
With `doNothing`, nothing will be done; that is no new trailer will be
|
|
added if there is already one with the same <token> in the message.
|
|
|
|
trailer.ifmissing::
|
|
This option makes it possible to choose what action will be
|
|
performed when there is not yet any trailer with the same
|
|
<token> in the message.
|
|
+
|
|
The valid values for this option are: `add` (this is the default) and
|
|
`doNothing`.
|
|
+
|
|
With `add`, a new trailer will be added.
|
|
+
|
|
With `doNothing`, nothing will be done.
|
|
|
|
trailer.<token>.key::
|
|
This `key` will be used instead of <token> in the trailer. At
|
|
the end of this key, a separator can appear and then some
|
|
space characters. By default the only valid separator is ':',
|
|
but this can be changed using the `trailer.separators` config
|
|
variable.
|
|
+
|
|
If there is a separator, then the key will be used instead of both the
|
|
<token> and the default separator when adding the trailer.
|
|
|
|
trailer.<token>.where::
|
|
This option takes the same values as the 'trailer.where'
|
|
configuration variable and it overrides what is specified by
|
|
that option for trailers with the specified <token>.
|
|
|
|
trailer.<token>.ifexist::
|
|
This option takes the same values as the 'trailer.ifexist'
|
|
configuration variable and it overrides what is specified by
|
|
that option for trailers with the specified <token>.
|
|
|
|
trailer.<token>.ifmissing::
|
|
This option takes the same values as the 'trailer.ifmissing'
|
|
configuration variable and it overrides what is specified by
|
|
that option for trailers with the specified <token>.
|
|
|
|
trailer.<token>.command::
|
|
This option can be used to specify a shell command that will
|
|
be called to automatically add or modify a trailer with the
|
|
specified <token>.
|
|
+
|
|
When this option is specified, the behavior is as if a special
|
|
'<token>=<value>' argument were added at the beginning of the command
|
|
line, where <value> is taken to be the standard output of the
|
|
specified command with any leading and trailing whitespace trimmed
|
|
off.
|
|
+
|
|
If the command contains the `$ARG` string, this string will be
|
|
replaced with the <value> part of an existing trailer with the same
|
|
<token>, if any, before the command is launched.
|
|
+
|
|
If some '<token>=<value>' arguments are also passed on the command
|
|
line, when a 'trailer.<token>.command' is configured, the command will
|
|
also be executed for each of these arguments. And the <value> part of
|
|
these arguments, if any, will be used to replace the `$ARG` string in
|
|
the command.
|
|
|
|
EXAMPLES
|
|
--------
|
|
|
|
* Configure a 'sign' trailer with a 'Signed-off-by' key, and then
|
|
add two of these trailers to a message:
|
|
+
|
|
------------
|
|
$ git config trailer.sign.key "Signed-off-by"
|
|
$ cat msg.txt
|
|
subject
|
|
|
|
message
|
|
$ cat msg.txt | git interpret-trailers --trailer 'sign: Alice <alice@example.com>' --trailer 'sign: Bob <bob@example.com>'
|
|
subject
|
|
|
|
message
|
|
|
|
Signed-off-by: Alice <alice@example.com>
|
|
Signed-off-by: Bob <bob@example.com>
|
|
------------
|
|
|
|
* Use the `--in-place` option to edit a message file in place:
|
|
+
|
|
------------
|
|
$ cat msg.txt
|
|
subject
|
|
|
|
message
|
|
|
|
Signed-off-by: Bob <bob@example.com>
|
|
$ git interpret-trailers --trailer 'Acked-by: Alice <alice@example.com>' --in-place msg.txt
|
|
$ cat msg.txt
|
|
subject
|
|
|
|
message
|
|
|
|
Signed-off-by: Bob <bob@example.com>
|
|
Acked-by: Alice <alice@example.com>
|
|
------------
|
|
|
|
* Extract the last commit as a patch, and add a 'Cc' and a
|
|
'Reviewed-by' trailer to it:
|
|
+
|
|
------------
|
|
$ git format-patch -1
|
|
0001-foo.patch
|
|
$ git interpret-trailers --trailer 'Cc: Alice <alice@example.com>' --trailer 'Reviewed-by: Bob <bob@example.com>' 0001-foo.patch >0001-bar.patch
|
|
------------
|
|
|
|
* Configure a 'sign' trailer with a command to automatically add a
|
|
'Signed-off-by: ' with the author information only if there is no
|
|
'Signed-off-by: ' already, and show how it works:
|
|
+
|
|
------------
|
|
$ git config trailer.sign.key "Signed-off-by: "
|
|
$ git config trailer.sign.ifmissing add
|
|
$ git config trailer.sign.ifexists doNothing
|
|
$ git config trailer.sign.command 'echo "$(git config user.name) <$(git config user.email)>"'
|
|
$ git interpret-trailers <<EOF
|
|
> EOF
|
|
|
|
Signed-off-by: Bob <bob@example.com>
|
|
$ git interpret-trailers <<EOF
|
|
> Signed-off-by: Alice <alice@example.com>
|
|
> EOF
|
|
|
|
Signed-off-by: Alice <alice@example.com>
|
|
------------
|
|
|
|
* Configure a 'fix' trailer with a key that contains a '#' and no
|
|
space after this character, and show how it works:
|
|
+
|
|
------------
|
|
$ git config trailer.separators ":#"
|
|
$ git config trailer.fix.key "Fix #"
|
|
$ echo "subject" | git interpret-trailers --trailer fix=42
|
|
subject
|
|
|
|
Fix #42
|
|
------------
|
|
|
|
* Configure a 'see' trailer with a command to show the subject of a
|
|
commit that is related, and show how it works:
|
|
+
|
|
------------
|
|
$ git config trailer.see.key "See-also: "
|
|
$ git config trailer.see.ifExists "replace"
|
|
$ git config trailer.see.ifMissing "doNothing"
|
|
$ git config trailer.see.command "git log -1 --oneline --format=\"%h (%s)\" --abbrev-commit --abbrev=14 \$ARG"
|
|
$ git interpret-trailers <<EOF
|
|
> subject
|
|
>
|
|
> message
|
|
>
|
|
> see: HEAD~2
|
|
> EOF
|
|
subject
|
|
|
|
message
|
|
|
|
See-also: fe3187489d69c4 (subject of related commit)
|
|
------------
|
|
|
|
* Configure a commit template with some trailers with empty values
|
|
(using sed to show and keep the trailing spaces at the end of the
|
|
trailers), then configure a commit-msg hook that uses
|
|
'git interpret-trailers' to remove trailers with empty values and
|
|
to add a 'git-version' trailer:
|
|
+
|
|
------------
|
|
$ sed -e 's/ Z$/ /' >commit_template.txt <<EOF
|
|
> ***subject***
|
|
>
|
|
> ***message***
|
|
>
|
|
> Fixes: Z
|
|
> Cc: Z
|
|
> Reviewed-by: Z
|
|
> Signed-off-by: Z
|
|
> EOF
|
|
$ git config commit.template commit_template.txt
|
|
$ cat >.git/hooks/commit-msg <<EOF
|
|
> #!/bin/sh
|
|
> git interpret-trailers --trim-empty --trailer "git-version: \$(git describe)" "\$1" > "\$1.new"
|
|
> mv "\$1.new" "\$1"
|
|
> EOF
|
|
$ chmod +x .git/hooks/commit-msg
|
|
------------
|
|
|
|
SEE ALSO
|
|
--------
|
|
linkgit:git-commit[1], linkgit:git-format-patch[1], linkgit:git-config[1]
|
|
|
|
GIT
|
|
---
|
|
Part of the linkgit:git[1] suite
|