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0460ed2c93
White-spaces, missing braces, standardize --[no-]foo. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
132 lines
4 KiB
Text
132 lines
4 KiB
Text
git-difftool(1)
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===============
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NAME
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----
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git-difftool - Show changes using common diff tools
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SYNOPSIS
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--------
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[verse]
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'git difftool' [<options>] [<commit> [<commit>]] [--] [<path>...]
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DESCRIPTION
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-----------
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'git difftool' is a Git command that allows you to compare and edit files
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between revisions using common diff tools. 'git difftool' is a frontend
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to 'git diff' and accepts the same options and arguments. See
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linkgit:git-diff[1].
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OPTIONS
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-------
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-d::
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--dir-diff::
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Copy the modified files to a temporary location and perform
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a directory diff on them. This mode never prompts before
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launching the diff tool.
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-y::
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--no-prompt::
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Do not prompt before launching a diff tool.
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--prompt::
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Prompt before each invocation of the diff tool.
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This is the default behaviour; the option is provided to
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override any configuration settings.
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-t <tool>::
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--tool=<tool>::
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Use the diff tool specified by <tool>. Valid values include
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emerge, kompare, meld, and vimdiff. Run `git difftool --tool-help`
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for the list of valid <tool> settings.
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+
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If a diff tool is not specified, 'git difftool'
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will use the configuration variable `diff.tool`. If the
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configuration variable `diff.tool` is not set, 'git difftool'
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will pick a suitable default.
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+
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You can explicitly provide a full path to the tool by setting the
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configuration variable `difftool.<tool>.path`. For example, you
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can configure the absolute path to kdiff3 by setting
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`difftool.kdiff3.path`. Otherwise, 'git difftool' assumes the
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tool is available in PATH.
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+
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Instead of running one of the known diff tools,
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'git difftool' can be customized to run an alternative program
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by specifying the command line to invoke in a configuration
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variable `difftool.<tool>.cmd`.
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+
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When 'git difftool' is invoked with this tool (either through the
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`-t` or `--tool` option or the `diff.tool` configuration variable)
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the configured command line will be invoked with the following
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variables available: `$LOCAL` is set to the name of the temporary
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file containing the contents of the diff pre-image and `$REMOTE`
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is set to the name of the temporary file containing the contents
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of the diff post-image. `$MERGED` is the name of the file which is
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being compared. `$BASE` is provided for compatibility
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with custom merge tool commands and has the same value as `$MERGED`.
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--tool-help::
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Print a list of diff tools that may be used with `--tool`.
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--[no-]symlinks::
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'git difftool''s default behavior is create symlinks to the
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working tree when run in `--dir-diff` mode and the right-hand
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side of the comparison yields the same content as the file in
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the working tree.
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+
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Specifying `--no-symlinks` instructs 'git difftool' to create copies
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instead. `--no-symlinks` is the default on Windows.
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-x <command>::
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--extcmd=<command>::
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Specify a custom command for viewing diffs.
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'git-difftool' ignores the configured defaults and runs
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`$command $LOCAL $REMOTE` when this option is specified.
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Additionally, `$BASE` is set in the environment.
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-g::
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--gui::
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When 'git-difftool' is invoked with the `-g` or `--gui` option
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the default diff tool will be read from the configured
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`diff.guitool` variable instead of `diff.tool`.
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See linkgit:git-diff[1] for the full list of supported options.
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CONFIG VARIABLES
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----------------
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'git difftool' falls back to 'git mergetool' config variables when the
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difftool equivalents have not been defined.
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diff.tool::
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The default diff tool to use.
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diff.guitool::
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The default diff tool to use when `--gui` is specified.
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difftool.<tool>.path::
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Override the path for the given tool. This is useful in case
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your tool is not in the PATH.
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difftool.<tool>.cmd::
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Specify the command to invoke the specified diff tool.
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See the `--tool=<tool>` option above for more details.
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difftool.prompt::
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Prompt before each invocation of the diff tool.
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SEE ALSO
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--------
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linkgit:git-diff[1]::
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Show changes between commits, commit and working tree, etc
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linkgit:git-mergetool[1]::
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Run merge conflict resolution tools to resolve merge conflicts
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linkgit:git-config[1]::
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Get and set repository or global options
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GIT
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---
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Part of the linkgit:git[1] suite
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