1f010d6bdf
We presently use the ".txt" extension for our AsciiDoc files. While not wrong, most editors do not associate this extension with AsciiDoc, meaning that contributors don't get automatic editor functionality that could be useful, such as syntax highlighting and prose linting. It is much more common to use the ".adoc" extension for AsciiDoc files, since this helps editors automatically detect files and also allows various forges to provide rich (HTML-like) rendering. Let's do that here, renaming all of the files and updating the includes where relevant. Adjust the various build scripts and makefiles to use the new extension as well. Note that this should not result in any user-visible changes to the documentation. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
140 lines
4.5 KiB
Plaintext
140 lines
4.5 KiB
Plaintext
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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--rotate-to=<file>::
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Start showing the diff for the given path,
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the paths before it will move to the end and output.
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--skip-to=<file>::
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Start showing the diff for the given path, skipping all
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the paths before it.
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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 to 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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--[no-]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`. This may be
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selected automatically using the configuration variable
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`difftool.guiDefault`. The `--no-gui` option can be used to
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override these settings. If `diff.guitool` is not set, we will
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fallback in the order of `merge.guitool`, `diff.tool`,
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`merge.tool` until a tool is found.
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--[no-]trust-exit-code::
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Errors reported by the diff tool are ignored by default.
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Use `--trust-exit-code` to make 'git-difftool' exit when an
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invoked diff tool returns a non-zero exit code.
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+
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'git-difftool' will forward the exit code of the invoked tool when
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`--trust-exit-code` is used.
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See linkgit:git-diff[1] for the full list of supported options.
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CONFIGURATION
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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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include::includes/cmd-config-section-rest.adoc[]
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include::config/difftool.adoc[]
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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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