mergetool--lib: Add Beyond Compare 3 as a tool

[git.git] / Documentation / git-difftool.txt

diff --git a/Documentation/git-difftool.txt b/Documentation/git-difftool.txt
index 6fffbc7bf89d01b14505c03993de9d97d37e9404..f087eff8763288d298f0d58ee24e3f2f07003b3a 100644 (file)
--- a/Documentation/git-difftool.txt
+++ b/Documentation/git-difftool.txt
@@ -31,8 +31,8 @@ OPTIONS
 --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.
+       araxis, bc3, diffuse, emerge, ecmerge, gvimdiff, kdiff3,
+       kompare, meld, opendiff, p4merge, tkdiff, vimdiff and xxdiff.
 +
 If a diff tool is not specified, 'git difftool'
 will use the configuration variable `diff.tool`.  If the
@@ -56,14 +56,16 @@ 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`.
+of the diff post-image.  `$MERGED` is the name of the file which is
+being compared. `$BASE` is provided for compatibility
+with custom merge tool commands and has the same value as `$MERGED`.
 
 -x <command>::
 --extcmd=<command>::
        Specify a custom command for viewing diffs.
        'git-difftool' ignores the configured defaults and runs
        `$command $LOCAL $REMOTE` when this option is specified.
+       Additionally, `$BASE` is set in the environment.
 
 -g::
 --gui::