git-commit-graph.html

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 735 <body class="manpage">
 736 <div id="header">
 737 <h1>
 738 git-commit-graph(1) Manual Page
 739 </h1>
 740 <h2>NAME</h2>
 741 <div class="sectionbody">
 742 <p>git-commit-graph -
 743    Write and verify Git commit-graph files
 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 commit-graph verify</em> [--object-dir &lt;dir&gt;] [--shallow] [--[no-]progress]
 753 <em>git commit-graph write</em> [--object-dir &lt;dir&gt;] [--append]
 754                         [--split[=&lt;strategy&gt;]] [--reachable | --stdin-packs | --stdin-commits]
 755                         [--changed-paths] [--[no-]max-new-filters &lt;n&gt;] [--[no-]progress]
 756                         &lt;split-options&gt;</pre>
 757 <div class="attribution">
 758 </div></div>
 759 </div>
 760 </div>
 761 <div class="sect1">
 762 <h2 id="_description">DESCRIPTION</h2>
 763 <div class="sectionbody">
 764 <div class="paragraph"><p>Manage the serialized commit-graph file.</p></div>
 765 </div>
 766 </div>
 767 <div class="sect1">
 768 <h2 id="_options">OPTIONS</h2>
 769 <div class="sectionbody">
 770 <div class="dlist"><dl>
 771 <dt class="hdlist1">
 772 --object-dir
 773 </dt>
 774 <dd>
 775 <p>
 776         Use given directory for the location of packfiles and commit-graph
 777         file. This parameter exists to specify the location of an alternate
 778         that only has the objects directory, not a full <code>.git</code> directory. The
 779         commit-graph file is expected to be in the <code>&lt;dir&gt;/info</code> directory and
 780         the packfiles are expected to be in <code>&lt;dir&gt;/pack</code>. If the directory
 781         could not be made into an absolute path, or does not match any known
 782         object directory, <code>git commit-graph ...</code> will exit with non-zero
 783         status.
 784 </p>
 785 </dd>
 786 <dt class="hdlist1">
 787 --[no-]progress
 788 </dt>
 789 <dd>
 790 <p>
 791         Turn progress on/off explicitly. If neither is specified, progress is
 792         shown if standard error is connected to a terminal.
 793 </p>
 794 </dd>
 795 </dl></div>
 796 </div>
 797 </div>
 798 <div class="sect1">
 799 <h2 id="_commands">COMMANDS</h2>
 800 <div class="sectionbody">
 801 <div class="dlist"><dl>
 802 <dt class="hdlist1">
 803 <em>write</em>
 804 </dt>
 805 <dd>
 806 <p>
 807 Write a commit-graph file based on the commits found in packfiles. If
 808 the config option <code>core.commitGraph</code> is disabled, then this command will
 809 output a warning, then return success without writing a commit-graph file.
 810 </p>
 811 <div class="paragraph"><p>With the <code>--stdin-packs</code> option, generate the new commit graph by
 812 walking objects only in the specified pack-indexes. (Cannot be combined
 813 with <code>--stdin-commits</code> or <code>--reachable</code>.)</p></div>
 814 <div class="paragraph"><p>With the <code>--stdin-commits</code> option, generate the new commit graph by
 815 walking commits starting at the commits specified in stdin as a list
 816 of OIDs in hex, one OID per line. OIDs that resolve to non-commits
 817 (either directly, or by peeling tags) are silently ignored. OIDs that
 818 are malformed, or do not exist generate an error. (Cannot be combined
 819 with <code>--stdin-packs</code> or <code>--reachable</code>.)</p></div>
 820 <div class="paragraph"><p>With the <code>--reachable</code> option, generate the new commit graph by walking
 821 commits starting at all refs. (Cannot be combined with <code>--stdin-commits</code>
 822 or <code>--stdin-packs</code>.)</p></div>
 823 <div class="paragraph"><p>With the <code>--append</code> option, include all commits that are present in the
 824 existing commit-graph file.</p></div>
 825 <div class="paragraph"><p>With the <code>--changed-paths</code> option, compute and write information about the
 826 paths changed between a commit and its first parent. This operation can
 827 take a while on large repositories. It provides significant performance gains
 828 for getting history of a directory or a file with <code>git log -- &lt;path&gt;</code>. If
 829 this option is given, future commit-graph writes will automatically assume
 830 that this option was intended. Use <code>--no-changed-paths</code> to stop storing this
 831 data.</p></div>
 832 <div class="paragraph"><p>With the <code>--max-new-filters=&lt;n&gt;</code> option, generate at most <code>n</code> new Bloom
 833 filters (if <code>--changed-paths</code> is specified). If <code>n</code> is <code>-1</code>, no limit is
 834 enforced. Only commits present in the new layer count against this
 835 limit. To retroactively compute Bloom filters over earlier layers, it is
 836 advised to use <code>--split=replace</code>.  Overrides the <code>commitGraph.maxNewFilters</code>
 837 configuration.</p></div>
 838 <div class="paragraph"><p>With the <code>--split[=&lt;strategy&gt;]</code> option, write the commit-graph as a
 839 chain of multiple commit-graph files stored in
 840 <code>&lt;dir&gt;/info/commit-graphs</code>. Commit-graph layers are merged based on the
 841 strategy and other splitting options. The new commits not already in the
 842 commit-graph are added in a new "tip" file. This file is merged with the
 843 existing file if the following merge conditions are met:</p></div>
 844 <div class="ulist"><ul>
 845 <li>
 846 <p>
 847 If <code>--split=no-merge</code> is specified, a merge is never performed, and
 848 the remaining options are ignored. <code>--split=replace</code> overwrites the
 849 existing chain with a new one. A bare <code>--split</code> defers to the remaining
 850 options. (Note that merging a chain of commit graphs replaces the
 851 existing chain with a length-1 chain where the first and only
 852 incremental holds the entire graph).
 853 </p>
 854 </li>
 855 <li>
 856 <p>
 857 If <code>--size-multiple=&lt;X&gt;</code> is not specified, let <code>X</code> equal 2. If the new
 858 tip file would have <code>N</code> commits and the previous tip has <code>M</code> commits and
 859 <code>X</code> times <code>N</code> is greater than  <code>M</code>, instead merge the two files into a
 860 single file.
 861 </p>
 862 </li>
 863 <li>
 864 <p>
 865 If <code>--max-commits=&lt;M&gt;</code> is specified with <code>M</code> a positive integer, and the
 866 new tip file would have more than <code>M</code> commits, then instead merge the new
 867 tip with the previous tip.
 868 </p>
 869 <div class="paragraph"><p>Finally, if <code>--expire-time=&lt;datetime&gt;</code> is not specified, let <code>datetime</code>
 870 be the current time. After writing the split commit-graph, delete all
 871 unused commit-graph whose modified times are older than <code>datetime</code>.</p></div>
 872 </li>
 873 </ul></div>
 874 </dd>
 875 <dt class="hdlist1">
 876 <em>verify</em>
 877 </dt>
 878 <dd>
 879 <p>
 880 Read the commit-graph file and verify its contents against the object
 881 database. Used to check for corrupted data.
 882 </p>
 883 <div class="paragraph"><p>With the <code>--shallow</code> option, only check the tip commit-graph file in
 884 a chain of split commit-graphs.</p></div>
 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="ulist"><ul>
 893 <li>
 894 <p>
 895 Write a commit-graph file for the packed commits in your local <code>.git</code>
 896   directory.
 897 </p>
 898 <div class="listingblock">
 899 <div class="content">
 900 <pre><code>$ git commit-graph write</code></pre>
 901 </div></div>
 902 </li>
 903 <li>
 904 <p>
 905 Write a commit-graph file, extending the current commit-graph file
 906   using commits in <code>&lt;pack-index&gt;</code>.
 907 </p>
 908 <div class="listingblock">
 909 <div class="content">
 910 <pre><code>$ echo &lt;pack-index&gt; | git commit-graph write --stdin-packs</code></pre>
 911 </div></div>
 912 </li>
 913 <li>
 914 <p>
 915 Write a commit-graph file containing all reachable commits.
 916 </p>
 917 <div class="listingblock">
 918 <div class="content">
 919 <pre><code>$ git show-ref -s | git commit-graph write --stdin-commits</code></pre>
 920 </div></div>
 921 </li>
 922 <li>
 923 <p>
 924 Write a commit-graph file containing all commits in the current
 925   commit-graph file along with those reachable from <code>HEAD</code>.
 926 </p>
 927 <div class="listingblock">
 928 <div class="content">
 929 <pre><code>$ git rev-parse HEAD | git commit-graph write --stdin-commits --append</code></pre>
 930 </div></div>
 931 </li>
 932 </ul></div>
 933 </div>
 934 </div>
 935 <div class="sect1">
 936 <h2 id="_configuration">CONFIGURATION</h2>
 937 <div class="sectionbody">
 938 <div class="paragraph"><p>Everything below this line in this section is selectively included
 939 from the <a href="git-config.html">git-config(1)</a> documentation. The content is the same
 940 as what&#8217;s found there:</p></div>
 941 <div class="dlist"><dl>
 942 <dt class="hdlist1">
 943 commitGraph.generationVersion
 944 </dt>
 945 <dd>
 946 <p>
 947         Specifies the type of generation number version to use when writing
 948         or reading the commit-graph file. If version 1 is specified, then
 949         the corrected commit dates will not be written or read. Defaults to
 950         2.
 951 </p>
 952 </dd>
 953 <dt class="hdlist1">
 954 commitGraph.maxNewFilters
 955 </dt>
 956 <dd>
 957 <p>
 958         Specifies the default value for the <code>--max-new-filters</code> option of <code>git
 959         commit-graph write</code> (c.f., <a href="git-commit-graph.html">git-commit-graph(1)</a>).
 960 </p>
 961 </dd>
 962 <dt class="hdlist1">
 963 commitGraph.readChangedPaths
 964 </dt>
 965 <dd>
 966 <p>
 967         If true, then git will use the changed-path Bloom filters in the
 968         commit-graph file (if it exists, and they are present). Defaults to
 969         true. See <a href="git-commit-graph.html">git-commit-graph(1)</a> for more information.
 970 </p>
 971 </dd>
 972 </dl></div>
 973 </div>
 974 </div>
 975 <div class="sect1">
 976 <h2 id="_file_format">FILE FORMAT</h2>
 977 <div class="sectionbody">
 978 <div class="paragraph"><p>see <a href="gitformat-commit-graph.html">gitformat-commit-graph(5)</a>.</p></div>
 979 </div>
 980 </div>
 981 <div class="sect1">
 982 <h2 id="_git">GIT</h2>
 983 <div class="sectionbody">
 984 <div class="paragraph"><p>Part of the <a href="git.html">git(1)</a> suite</p></div>
 985 </div>
 986 </div>
 987 </div>
 988 <div id="footnotes"><hr /></div>
 989 <div id="footer">
 990 <div id="footer-text">
 991 Last updated
 992  2024-02-08 15:45:59 PST
 993 </div>
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