git-difftool.html

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 734 </head>
 735 <body class="manpage">
 736 <div id="header">
 737 <h1>
 738 git-difftool(1) Manual Page
 739 </h1>
 740 <h2>NAME</h2>
 741 <div class="sectionbody">
 742 <p>git-difftool -
 743    Show changes using common diff tools
 744 </p>
 745 </div>
 746 </div>
 747 <div id="content">
 748 <div class="sect1">
 749 <h2 id="_synopsis">SYNOPSIS</h2>
 750 <div class="sectionbody">
 751 <div class="verseblock">
 752 <pre class="content"><em>git difftool</em> [&lt;options&gt;] [&lt;commit&gt; [&lt;commit&gt;]] [--] [&lt;path&gt;&#8230;]</pre>
 753 <div class="attribution">
 754 </div></div>
 755 </div>
 756 </div>
 757 <div class="sect1">
 758 <h2 id="_description">DESCRIPTION</h2>
 759 <div class="sectionbody">
 760 <div class="paragraph"><p><em>git difftool</em> is a Git command that allows you to compare and edit files
 761 between revisions using common diff tools.  <em>git difftool</em> is a frontend
 762 to <em>git diff</em> and accepts the same options and arguments. See
 763 <a href="git-diff.html">git-diff(1)</a>.</p></div>
 764 </div>
 765 </div>
 766 <div class="sect1">
 767 <h2 id="_options">OPTIONS</h2>
 768 <div class="sectionbody">
 769 <div class="dlist"><dl>
 770 <dt class="hdlist1">
 771 -d
 772 </dt>
 773 <dt class="hdlist1">
 774 --dir-diff
 775 </dt>
 776 <dd>
 777 <p>
 778         Copy the modified files to a temporary location and perform
 779         a directory diff on them. This mode never prompts before
 780         launching the diff tool.
 781 </p>
 782 </dd>
 783 <dt class="hdlist1">
 784 -y
 785 </dt>
 786 <dt class="hdlist1">
 787 --no-prompt
 788 </dt>
 789 <dd>
 790 <p>
 791         Do not prompt before launching a diff tool.
 792 </p>
 793 </dd>
 794 <dt class="hdlist1">
 795 --prompt
 796 </dt>
 797 <dd>
 798 <p>
 799         Prompt before each invocation of the diff tool.
 800         This is the default behaviour; the option is provided to
 801         override any configuration settings.
 802 </p>
 803 </dd>
 804 <dt class="hdlist1">
 805 --rotate-to=&lt;file&gt;
 806 </dt>
 807 <dd>
 808 <p>
 809         Start showing the diff for the given path,
 810         the paths before it will move to the end and output.
 811 </p>
 812 </dd>
 813 <dt class="hdlist1">
 814 --skip-to=&lt;file&gt;
 815 </dt>
 816 <dd>
 817 <p>
 818         Start showing the diff for the given path, skipping all
 819         the paths before it.
 820 </p>
 821 </dd>
 822 <dt class="hdlist1">
 823 -t &lt;tool&gt;
 824 </dt>
 825 <dt class="hdlist1">
 826 --tool=&lt;tool&gt;
 827 </dt>
 828 <dd>
 829 <p>
 830         Use the diff tool specified by &lt;tool&gt;.  Valid values include
 831         emerge, kompare, meld, and vimdiff. Run <code>git difftool --tool-help</code>
 832         for the list of valid &lt;tool&gt; settings.
 833 </p>
 834 <div class="paragraph"><p>If a diff tool is not specified, <em>git difftool</em>
 835 will use the configuration variable <code>diff.tool</code>.  If the
 836 configuration variable <code>diff.tool</code> is not set, <em>git difftool</em>
 837 will pick a suitable default.</p></div>
 838 <div class="paragraph"><p>You can explicitly provide a full path to the tool by setting the
 839 configuration variable <code>difftool.&lt;tool&gt;.path</code>. For example, you
 840 can configure the absolute path to kdiff3 by setting
 841 <code>difftool.kdiff3.path</code>. Otherwise, <em>git difftool</em> assumes the
 842 tool is available in PATH.</p></div>
 843 <div class="paragraph"><p>Instead of running one of the known diff tools,
 844 <em>git difftool</em> can be customized to run an alternative program
 845 by specifying the command line to invoke in a configuration
 846 variable <code>difftool.&lt;tool&gt;.cmd</code>.</p></div>
 847 <div class="paragraph"><p>When <em>git difftool</em> is invoked with this tool (either through the
 848 <code>-t</code> or <code>--tool</code> option or the <code>diff.tool</code> configuration variable)
 849 the configured command line will be invoked with the following
 850 variables available: <code>$LOCAL</code> is set to the name of the temporary
 851 file containing the contents of the diff pre-image and <code>$REMOTE</code>
 852 is set to the name of the temporary file containing the contents
 853 of the diff post-image.  <code>$MERGED</code> is the name of the file which is
 854 being compared. <code>$BASE</code> is provided for compatibility
 855 with custom merge tool commands and has the same value as <code>$MERGED</code>.</p></div>
 856 </dd>
 857 <dt class="hdlist1">
 858 --tool-help
 859 </dt>
 860 <dd>
 861 <p>
 862         Print a list of diff tools that may be used with <code>--tool</code>.
 863 </p>
 864 </dd>
 865 <dt class="hdlist1">
 866 --[no-]symlinks
 867 </dt>
 868 <dd>
 869 <p>
 870         <em>git difftool</em>'s default behavior is to create symlinks to the
 871         working tree when run in <code>--dir-diff</code> mode and the right-hand
 872         side of the comparison yields the same content as the file in
 873         the working tree.
 874 </p>
 875 <div class="paragraph"><p>Specifying <code>--no-symlinks</code> instructs <em>git difftool</em> to create copies
 876 instead.  <code>--no-symlinks</code> is the default on Windows.</p></div>
 877 </dd>
 878 <dt class="hdlist1">
 879 -x &lt;command&gt;
 880 </dt>
 881 <dt class="hdlist1">
 882 --extcmd=&lt;command&gt;
 883 </dt>
 884 <dd>
 885 <p>
 886         Specify a custom command for viewing diffs.
 887         <em>git-difftool</em> ignores the configured defaults and runs
 888         <code>$command $LOCAL $REMOTE</code> when this option is specified.
 889         Additionally, <code>$BASE</code> is set in the environment.
 890 </p>
 891 </dd>
 892 <dt class="hdlist1">
 893 -g
 894 </dt>
 895 <dt class="hdlist1">
 896 --[no-]gui
 897 </dt>
 898 <dd>
 899 <p>
 900         When <em>git-difftool</em> is invoked with the <code>-g</code> or <code>--gui</code> option
 901         the default diff tool will be read from the configured
 902         <code>diff.guitool</code> variable instead of <code>diff.tool</code>. This may be
 903         selected automatically using the configuration variable
 904         <code>difftool.guiDefault</code>. The <code>--no-gui</code> option can be used to
 905         override these settings. If <code>diff.guitool</code> is not set, we will
 906         fallback in the order of <code>merge.guitool</code>, <code>diff.tool</code>,
 907         <code>merge.tool</code> until a tool is found.
 908 </p>
 909 </dd>
 910 <dt class="hdlist1">
 911 --[no-]trust-exit-code
 912 </dt>
 913 <dd>
 914 <p>
 915         <em>git-difftool</em> invokes a diff tool individually on each file.
 916         Errors reported by the diff tool are ignored by default.
 917         Use <code>--trust-exit-code</code> to make <em>git-difftool</em> exit when an
 918         invoked diff tool returns a non-zero exit code.
 919 </p>
 920 <div class="paragraph"><p><em>git-difftool</em> will forward the exit code of the invoked tool when
 921 <code>--trust-exit-code</code> is used.</p></div>
 922 </dd>
 923 </dl></div>
 924 <div class="paragraph"><p>See <a href="git-diff.html">git-diff(1)</a> for the full list of supported options.</p></div>
 925 </div>
 926 </div>
 927 <div class="sect1">
 928 <h2 id="_configuration">CONFIGURATION</h2>
 929 <div class="sectionbody">
 930 <div class="paragraph"><p><em>git difftool</em> falls back to <em>git mergetool</em> config variables when the
 931 difftool equivalents have not been defined.</p></div>
 932 <div class="paragraph"><p>Everything above this line in this section isn&#8217;t included from the
 933 <a href="git-config.html">git-config(1)</a> documentation. The content that follows is the
 934 same as what&#8217;s found there:</p></div>
 935 <div class="dlist"><dl>
 936 <dt class="hdlist1">
 937 diff.tool
 938 </dt>
 939 <dd>
 940 <p>
 941         Controls which diff tool is used by <a href="git-difftool.html">git-difftool(1)</a>.
 942         This variable overrides the value configured in <code>merge.tool</code>.
 943         The list below shows the valid built-in values.
 944         Any other value is treated as a custom diff tool and requires
 945         that a corresponding difftool.&lt;tool&gt;.cmd variable is defined.
 946 </p>
 947 </dd>
 948 <dt class="hdlist1">
 949 diff.guitool
 950 </dt>
 951 <dd>
 952 <p>
 953         Controls which diff tool is used by <a href="git-difftool.html">git-difftool(1)</a> when
 954         the -g/--gui flag is specified. This variable overrides the value
 955         configured in <code>merge.guitool</code>. The list below shows the valid
 956         built-in values. Any other value is treated as a custom diff tool
 957         and requires that a corresponding difftool.&lt;guitool&gt;.cmd variable
 958         is defined.
 959 </p>
 960 </dd>
 961 <dt class="hdlist1">
 962 difftool.&lt;tool&gt;.cmd
 963 </dt>
 964 <dd>
 965 <p>
 966         Specify the command to invoke the specified diff tool.
 967         The specified command is evaluated in shell with the following
 968         variables available:  <em>LOCAL</em> is set to the name of the temporary
 969         file containing the contents of the diff pre-image and <em>REMOTE</em>
 970         is set to the name of the temporary file containing the contents
 971         of the diff post-image.
 972 </p>
 973 <div class="paragraph"><p>See the <code>--tool=&lt;tool&gt;</code> option in <a href="git-difftool.html">git-difftool(1)</a> for more details.</p></div>
 974 </dd>
 975 <dt class="hdlist1">
 976 difftool.&lt;tool&gt;.path
 977 </dt>
 978 <dd>
 979 <p>
 980         Override the path for the given tool.  This is useful in case
 981         your tool is not in the PATH.
 982 </p>
 983 </dd>
 984 <dt class="hdlist1">
 985 difftool.trustExitCode
 986 </dt>
 987 <dd>
 988 <p>
 989         Exit difftool if the invoked diff tool returns a non-zero exit status.
 990 </p>
 991 <div class="paragraph"><p>See the <code>--trust-exit-code</code> option in <a href="git-difftool.html">git-difftool(1)</a> for more details.</p></div>
 992 </dd>
 993 <dt class="hdlist1">
 994 difftool.prompt
 995 </dt>
 996 <dd>
 997 <p>
 998         Prompt before each invocation of the diff tool.
 999 </p>
1000 </dd>
1001 <dt class="hdlist1">
1002 difftool.guiDefault
1003 </dt>
1004 <dd>
1005 <p>
1006         Set <code>true</code> to use the <code>diff.guitool</code> by default (equivalent to specifying
1007         the <code>--gui</code> argument), or <code>auto</code> to select <code>diff.guitool</code> or <code>diff.tool</code>
1008         depending on the presence of a <code>DISPLAY</code> environment variable value. The
1009         default is <code>false</code>, where the <code>--gui</code> argument must be provided
1010         explicitly for the <code>diff.guitool</code> to be used.
1011 </p>
1012 </dd>
1013 </dl></div>
1014 </div>
1015 </div>
1016 <div class="sect1">
1017 <h2 id="_see_also">SEE ALSO</h2>
1018 <div class="sectionbody">
1019 <div class="dlist"><dl>
1020 <dt class="hdlist1">
1021 <a href="git-diff.html">git-diff(1)</a>
1022 </dt>
1023 <dd>
1024 <p>
1025          Show changes between commits, commit and working tree, etc
1026 </p>
1027 </dd>
1028 <dt class="hdlist1">
1029 <a href="git-mergetool.html">git-mergetool(1)</a>
1030 </dt>
1031 <dd>
1032 <p>
1033         Run merge conflict resolution tools to resolve merge conflicts
1034 </p>
1035 </dd>
1036 <dt class="hdlist1">
1037 <a href="git-config.html">git-config(1)</a>
1038 </dt>
1039 <dd>
1040 <p>
1041          Get and set repository or global options
1042 </p>
1043 </dd>
1044 </dl></div>
1045 </div>
1046 </div>
1047 <div class="sect1">
1048 <h2 id="_git">GIT</h2>
1049 <div class="sectionbody">
1050 <div class="paragraph"><p>Part of the <a href="git.html">git(1)</a> suite</p></div>
1051 </div>
1052 </div>
1053 </div>
1054 <div id="footnotes"><hr /></div>
1055 <div id="footer">
1056 <div id="footer-text">
1057 Last updated
1058  2023-10-23 14:43:46 PDT
1059 </div>
1060 </div>
1061 </body>
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