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git-difftool - Show changes using common diff tools
'git difftool' [<options>] [<commit> [<commit>]] [--] [<path>...]
'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. See
Copy the modified files to a temporary location and perform
a directory diff on them. This mode never prompts before
launching the diff tool.
Do not prompt before launching a diff tool.
Prompt before each invocation of the diff tool.
This is the default behaviour; the option is provided to
override any configuration settings.
Start showing the diff for the given path,
the paths before it will move to end and output.
Start showing the diff for the given path, skipping all
the paths before it.
-t <tool>::
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
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. `$MERGED` is the name of the file which is
being compared. `$BASE` is provided for compatibility
with custom merge tool commands and has the same value as `$MERGED`.
Print a list of diff tools that may be used with `--tool`.
'git difftool''s default behavior is create symlinks to the
working tree when run in `--dir-diff` mode and the right-hand
side of the comparison yields the same content as the file in
the working tree.
Specifying `--no-symlinks` instructs 'git difftool' to create copies
instead. `--no-symlinks` is the default on Windows.
-x <command>::
Specify a custom command for viewing diffs.
'git-difftool' ignores the configured defaults and runs
`$command $LOCAL $REMOTE` when this option is specified.
Additionally, `$BASE` is set in the environment.
When 'git-difftool' is invoked with the `-g` or `--gui` option
the default diff tool will be read from the configured
`diff.guitool` variable instead of `diff.tool`. This may be
selected automatically using the configuration variable
`difftool.guiDefault`. The `--no-gui` option can be used to
override these settings. If `diff.guitool` is not set, we will
fallback in the order of `merge.guitool`, `diff.tool`,
`merge.tool` until a tool is found.
'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.
'git difftool' falls back to 'git mergetool' config variables when the
difftool equivalents have not been defined.
Show changes between commits, commit and working tree, etc
Run merge conflict resolution tools to resolve merge conflicts
Get and set repository or global options
Part of the linkgit:git[1] suite