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 735 <body class="manpage">
 736 <div id="header">
 737 <h1>
 738 git-merge-file(1) Manual Page
 739 </h1>
 740 <h2>NAME</h2>
 741 <div class="sectionbody">
 742 <p>git-merge-file -
 743    Run a three-way file merge
 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 merge-file</em> [-L &lt;current-name&gt; [-L &lt;base-name&gt; [-L &lt;other-name&gt;]]]
 753         [--ours|--theirs|--union] [-p|--stdout] [-q|--quiet] [--marker-size=&lt;n&gt;]
 754         [--[no-]diff3] [--object-id] &lt;current&gt; &lt;base&gt; &lt;other&gt;</pre>
 755 <div class="attribution">
 756 </div></div>
 757 </div>
 758 </div>
 759 <div class="sect1">
 760 <h2 id="_description">DESCRIPTION</h2>
 761 <div class="sectionbody">
 762 <div class="paragraph"><p>Given three files <code>&lt;current&gt;</code>, <code>&lt;base&gt;</code> and <code>&lt;other&gt;</code>,
 763 <em>git merge-file</em> incorporates all changes that lead from <code>&lt;base&gt;</code>
 764 to <code>&lt;other&gt;</code> into <code>&lt;current&gt;</code>. The result ordinarily goes into
 765 <code>&lt;current&gt;</code>. <em>git merge-file</em> is useful for combining separate changes
 766 to an original. Suppose <code>&lt;base&gt;</code> is the original, and both
 767 <code>&lt;current&gt;</code> and <code>&lt;other&gt;</code> are modifications of <code>&lt;base&gt;</code>,
 768 then <em>git merge-file</em> combines both changes.</p></div>
 769 <div class="paragraph"><p>A conflict occurs if both <code>&lt;current&gt;</code> and <code>&lt;other&gt;</code> have changes
 770 in a common segment of lines. If a conflict is found, <em>git merge-file</em>
 771 normally outputs a warning and brackets the conflict with lines containing
 772 &lt;&lt;&lt;&lt;&lt;&lt;&lt; and &gt;&gt;&gt;&gt;&gt;&gt;&gt; markers. A typical conflict will look like this:</p></div>
 773 <div class="literalblock">
 774 <div class="content">
 775 <pre><code>&lt;&lt;&lt;&lt;&lt;&lt;&lt; A
 776 lines in file A
 777 =======
 778 lines in file B
 779 &gt;&gt;&gt;&gt;&gt;&gt;&gt; B</code></pre>
 780 </div></div>
 781 <div class="paragraph"><p>If there are conflicts, the user should edit the result and delete one of
 782 the alternatives.  When <code>--ours</code>, <code>--theirs</code>, or <code>--union</code> option is in effect,
 783 however, these conflicts are resolved favouring lines from <code>&lt;current&gt;</code>,
 784 lines from <code>&lt;other&gt;</code>, or lines from both respectively.  The length of the
 785 conflict markers can be given with the <code>--marker-size</code> option.</p></div>
 786 <div class="paragraph"><p>If <code>--object-id</code> is specified, exactly the same behavior occurs, except that
 787 instead of specifying what to merge as files, it is specified as a list of
 788 object IDs referring to blobs.</p></div>
 789 <div class="paragraph"><p>The exit value of this program is negative on error, and the number of
 790 conflicts otherwise (truncated to 127 if there are more than that many
 791 conflicts). If the merge was clean, the exit value is 0.</p></div>
 792 <div class="paragraph"><p><em>git merge-file</em> is designed to be a minimal clone of RCS <em>merge</em>; that is, it
 793 implements all of RCS <em>merge</em>'s functionality which is needed by
 794 <a href="git.html">git(1)</a>.</p></div>
 795 </div>
 796 </div>
 797 <div class="sect1">
 798 <h2 id="_options">OPTIONS</h2>
 799 <div class="sectionbody">
 800 <div class="dlist"><dl>
 801 <dt class="hdlist1">
 802 --object-id
 803 </dt>
 804 <dd>
 805 <p>
 806         Specify the contents to merge as blobs in the current repository instead of
 807         files.  In this case, the operation must take place within a valid repository.
 808 </p>
 809 <div class="paragraph"><p>If the <code>-p</code> option is specified, the merged file (including conflicts, if any)
 810 goes to standard output as normal; otherwise, the merged file is written to the
 811 object store and the object ID of its blob is written to standard output.</p></div>
 812 </dd>
 813 <dt class="hdlist1">
 814 -L &lt;label&gt;
 815 </dt>
 816 <dd>
 817 <p>
 818         This option may be given up to three times, and
 819         specifies labels to be used in place of the
 820         corresponding file names in conflict reports. That is,
 821         <code>git merge-file -L x -L y -L z a b c</code> generates output that
 822         looks like it came from files x, y and z instead of
 823         from files a, b and c.
 824 </p>
 825 </dd>
 826 <dt class="hdlist1">
 827 -p
 828 </dt>
 829 <dd>
 830 <p>
 831         Send results to standard output instead of overwriting
 832         <code>&lt;current&gt;</code>.
 833 </p>
 834 </dd>
 835 <dt class="hdlist1">
 836 -q
 837 </dt>
 838 <dd>
 839 <p>
 840         Quiet; do not warn about conflicts.
 841 </p>
 842 </dd>
 843 <dt class="hdlist1">
 844 --diff3
 845 </dt>
 846 <dd>
 847 <p>
 848         Show conflicts in "diff3" style.
 849 </p>
 850 </dd>
 851 <dt class="hdlist1">
 852 --zdiff3
 853 </dt>
 854 <dd>
 855 <p>
 856         Show conflicts in "zdiff3" style.
 857 </p>
 858 </dd>
 859 <dt class="hdlist1">
 860 --ours
 861 </dt>
 862 <dt class="hdlist1">
 863 --theirs
 864 </dt>
 865 <dt class="hdlist1">
 866 --union
 867 </dt>
 868 <dd>
 869 <p>
 870         Instead of leaving conflicts in the file, resolve conflicts
 871         favouring our (or their or both) side of the lines.
 872 </p>
 873 </dd>
 874 <dt class="hdlist1">
 875 --diff-algorithm={patience|minimal|histogram|myers}
 876 </dt>
 877 <dd>
 878 <p>
 879         Use a different diff algorithm while merging. The current default is "myers",
 880         but selecting more recent algorithm such as "histogram" can help
 881         avoid mismerges that occur due to unimportant matching lines
 882         (such as braces from distinct functions). See also
 883         <a href="git-diff.html">git-diff(1)</a> <code>--diff-algorithm</code>.
 884 </p>
 885 </dd>
 886 </dl></div>
 887 </div>
 888 </div>
 889 <div class="sect1">
 890 <h2 id="_examples">EXAMPLES</h2>
 891 <div class="sectionbody">
 892 <div class="dlist"><dl>
 893 <dt class="hdlist1">
 894 <code>git merge-file README.my README README.upstream</code>
 895 </dt>
 896 <dd>
 897 <p>
 898         combines the changes of README.my and README.upstream since README,
 899         tries to merge them and writes the result into README.my.
 900 </p>
 901 </dd>
 902 <dt class="hdlist1">
 903 <code>git merge-file -L a -L b -L c tmp/a123 tmp/b234 tmp/c345</code>
 904 </dt>
 905 <dd>
 906 <p>
 907         merges tmp/a123 and tmp/c345 with the base tmp/b234, but uses labels
 908         <code>a</code> and <code>c</code> instead of <code>tmp/a123</code> and <code>tmp/c345</code>.
 909 </p>
 910 </dd>
 911 <dt class="hdlist1">
 912 <code>git merge-file -p --object-id abc1234 def567 890abcd</code>
 913 </dt>
 914 <dd>
 915 <p>
 916         combines the changes of the blob abc1234 and 890abcd since def567,
 917         tries to merge them and writes the result to standard output
 918 </p>
 919 </dd>
 920 </dl></div>
 921 </div>
 922 </div>
 923 <div class="sect1">
 924 <h2 id="_git">GIT</h2>
 925 <div class="sectionbody">
 926 <div class="paragraph"><p>Part of the <a href="git.html">git(1)</a> suite</p></div>
 927 </div>
 928 </div>
 929 </div>
 930 <div id="footnotes"><hr /></div>
 931 <div id="footer">
 932 <div id="footer-text">
 933 Last updated
 934  2023-12-18 14:49:41 PST
 935 </div>
 936 </div>
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