# This is a wrapper around the GIT_EXTERNAL_DIFF-compatible
# git-difftool-helper script. This script exports
# GIT_EXTERNAL_DIFF and GIT_PAGER for use by git, and
-# GIT_NO_PROMPT and GIT_MERGE_TOOL for use by git-difftool-helper.
+# GIT_DIFFTOOL_NO_PROMPT and GIT_MERGE_TOOL for use by git-difftool-helper.
# Any arguments that are unknown to this script are forwarded to 'git diff'.
use strict;
sub usage
{
print << 'USAGE';
-
-usage: git difftool [--no-prompt] [--tool=tool] ["git diff" options]
+usage: git difftool [--tool=<tool>] [--no-prompt] ["git diff" options]
USAGE
exit 1;
}
DESCRIPTION
-----------
-'git difftool' is a git command that allows you to compare and edit files
+'git-difftool' is a git command that allows you to compare and edit files
between revisions using common merge tools. At its most basic level,
-'git difftool' does what 'git mergetool' does but its use is for non-merge
+'git-difftool' does what 'git-mergetool' does but its use is for non-merge
situations such as when preparing commits or comparing changes against
the index.
'git difftool' is a frontend to 'git diff' and accepts the same
arguments and options.
-See linkgit:git-diff[7] for the full list of supported options.
+See linkgit:git-diff[1] for the full list of supported options.
OPTIONS
-------
Valid merge tools are:
kdiff3, tkdiff, meld, xxdiff, emerge, vimdiff, gvimdiff, ecmerge, and opendiff
+
-If a merge resolution program is not specified, 'git difftool'
+If a merge resolution program is not specified, 'git-difftool'
will use the configuration variable `merge.tool`. If the
configuration variable `merge.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 `mergetool.<tool>.path`. For example, you
can configure the absolute path to kdiff3 by setting
-`mergetool.kdiff3.path`. Otherwise, 'git difftool' assumes the
+`mergetool.kdiff3.path`. Otherwise, 'git-difftool' assumes the
tool is available in PATH.
+
Instead of running one of the known merge tool programs,
-'git difftool' can be customized to run an alternative program
+'git-difftool' can be customized to run an alternative program
by specifying the command line to invoke in a configuration
variable `mergetool.<tool>.cmd`.
+
-When 'git difftool' is invoked with this tool (either through the
+When 'git-difftool' is invoked with this tool (either through the
`-t` or `--tool` option or the `merge.tool` configuration variable)
the configured command line will be invoked with the following
variables available: `$LOCAL` is set to the name of the temporary
with custom merge tool commands and has the same value as `$LOCAL`.
--no-prompt::
- Do not prompt before launching a merge tool.
+ Do not prompt before launching a diff tool.
CONFIG VARIABLES
----------------
SEE ALSO
--------
-linkgit:git-diff[7]::
+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[7]::
+linkgit:git-config[1]::
Get and set repository or global options