git-commit-vandalism/Documentation/git-difftool.txt
Thomas Rast 0b444cdb19 Documentation: spell 'git cmd' without dash throughout
The documentation was quite inconsistent when spelling 'git cmd' if it
only refers to the program, not to some specific invocation syntax:
both 'git-cmd' and 'git cmd' spellings exist.

The current trend goes towards dashless forms, and there is precedent
in 647ac70 (git-svn.txt: stop using dash-form of commands.,
2009-07-07) to actively eliminate the dashed variants.

Replace 'git-cmd' with 'git cmd' throughout, except where git-shell,
git-cvsserver, git-upload-pack, git-receive-pack, and
git-upload-archive are concerned, because those really live in the
$PATH.
2010-01-10 13:01:28 +01:00

106 lines
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Plaintext

git-difftool(1)
===============
NAME
----
git-difftool - Show changes using common diff tools
SYNOPSIS
--------
'git difftool' [--tool=<tool>] [-y|--no-prompt|--prompt] [<'git diff' options>]
DESCRIPTION
-----------
'git difftool' is a git command that allows you to compare and edit files
between revisions using common diff tools. 'git difftool' is a frontend
to 'git diff' and accepts the same options and arguments.
OPTIONS
-------
-y::
--no-prompt::
Do not prompt before launching a diff tool.
--prompt::
Prompt before each invocation of the diff tool.
This is the default behaviour; the option is provided to
override any configuration settings.
-t <tool>::
--tool=<tool>::
Use the diff tool specified by <tool>.
Valid merge tools are:
kdiff3, kompare, tkdiff, meld, xxdiff, emerge, vimdiff, gvimdiff,
ecmerge, diffuse, opendiff, p4merge and araxis.
+
If a diff tool is not specified, 'git difftool'
will use the configuration variable `diff.tool`. If the
configuration variable `diff.tool` is not set, 'git difftool'
will pick a suitable default.
+
You can explicitly provide a full path to the tool by setting the
configuration variable `difftool.<tool>.path`. For example, you
can configure the absolute path to kdiff3 by setting
`difftool.kdiff3.path`. Otherwise, 'git difftool' assumes the
tool is available in PATH.
+
Instead of running one of the known diff tools,
'git difftool' can be customized to run an alternative program
by specifying the command line to invoke in a configuration
variable `difftool.<tool>.cmd`.
+
When 'git difftool' is invoked with this tool (either through the
`-t` or `--tool` option or the `diff.tool` configuration variable)
the configured command line will be invoked with the following
variables available: `$LOCAL` is set to the name of the temporary
file containing the contents of the diff pre-image and `$REMOTE`
is set to the name of the temporary file containing the contents
of the diff post-image. `$BASE` is provided for compatibility
with custom merge tool commands and has the same value as `$LOCAL`.
See linkgit:git-diff[1] for the full list of supported options.
CONFIG VARIABLES
----------------
'git difftool' falls back to 'git mergetool' config variables when the
difftool equivalents have not been defined.
diff.tool::
The default diff tool to use.
difftool.<tool>.path::
Override the path for the given tool. This is useful in case
your tool is not in the PATH.
difftool.<tool>.cmd::
Specify the command to invoke the specified diff tool.
+
See the `--tool=<tool>` option above for more details.
difftool.prompt::
Prompt before each invocation of the diff tool.
SEE ALSO
--------
linkgit:git-diff[1]::
Show changes between commits, commit and working tree, etc
linkgit:git-mergetool[1]::
Run merge conflict resolution tools to resolve merge conflicts
linkgit:git-config[1]::
Get and set repository or global options
AUTHOR
------
Written by David Aguilar <davvid@gmail.com>.
Documentation
--------------
Documentation by David Aguilar and the git-list <git@vger.kernel.org>.
GIT
---
Part of the linkgit:git[1] suite