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-rw-r--r--Documentation/git-difftool.txt62
1 files changed, 44 insertions, 18 deletions
diff --git a/Documentation/git-difftool.txt b/Documentation/git-difftool.txt
index 8250bad2ce..333cf6ff91 100644
--- a/Documentation/git-difftool.txt
+++ b/Documentation/git-difftool.txt
@@ -7,16 +7,24 @@ git-difftool - Show changes using common diff tools
SYNOPSIS
--------
-'git difftool' [<options>] <commit>{0,2} [--] [<path>...]
+[verse]
+'git difftool' [<options>] [<commit> [<commit>]] [--] [<path>...]
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 diff tools. 'git difftool' is a frontend
-to 'git diff' and accepts the same options and arguments.
+to 'git diff' and accepts the same options and arguments. See
+linkgit:git-diff[1].
OPTIONS
-------
+-d::
+--dir-diff::
+ Copy the modified files to a temporary location and perform
+ a directory diff on them. This mode never prompts before
+ launching the diff tool.
+
-y::
--no-prompt::
Do not prompt before launching a diff tool.
@@ -28,10 +36,9 @@ OPTIONS
-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.
+ Use the diff tool specified by <tool>. Valid values include
+ emerge, kompare, meld, and vimdiff. Run `git difftool --tool-help`
+ for the list of valid <tool> settings.
+
If a diff tool is not specified, 'git difftool'
will use the configuration variable `diff.tool`. If the
@@ -55,14 +62,28 @@ 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 `$MERGED`.
+
+--tool-help::
+ Print a list of diff tools that may be used with `--tool`.
+
+--[no-]symlinks::
+ 'git difftool''s default behavior is create symlinks to the
+ working tree when run in `--dir-diff` mode and the right-hand
+ side of the comparison yields the same content as the file in
+ the working tree.
++
+Specifying `--no-symlinks` instructs 'git difftool' to create copies
+instead. `--no-symlinks` is the default on Windows.
-x <command>::
--extcmd=<command>::
Specify a custom command for viewing diffs.
'git-difftool' ignores the configured defaults and runs
`$command $LOCAL $REMOTE` when this option is specified.
+ Additionally, `$BASE` is set in the environment.
-g::
--gui::
@@ -70,6 +91,15 @@ with custom merge tool commands and has the same value as `$LOCAL`.
the default diff tool will be read from the configured
`diff.guitool` variable instead of `diff.tool`.
+--[no-]trust-exit-code::
+ 'git-difftool' invokes a diff tool individually on each file.
+ Errors reported by the diff tool are ignored by default.
+ Use `--trust-exit-code` to make 'git-difftool' exit when an
+ invoked diff tool returns a non-zero exit code.
++
+'git-difftool' will forward the exit code of the invoked tool when
+'--trust-exit-code' is used.
+
See linkgit:git-diff[1] for the full list of supported options.
CONFIG VARIABLES
@@ -95,6 +125,11 @@ See the `--tool=<tool>` option above for more details.
difftool.prompt::
Prompt before each invocation of the diff tool.
+difftool.trustExitCode::
+ Exit difftool if the invoked diff tool returns a non-zero exit status.
++
+See the `--trust-exit-code` option above for more details.
+
SEE ALSO
--------
linkgit:git-diff[1]::
@@ -106,15 +141,6 @@ linkgit:git-mergetool[1]::
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