git-sh-setup.html

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 735 <body class="manpage">
 736 <div id="header">
 737 <h1>
 738 git-sh-setup(1) Manual Page
 739 </h1>
 740 <h2>NAME</h2>
 741 <div class="sectionbody">
 742 <p>git-sh-setup -
 743    Common Git shell script setup code
 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 --exec-path)/git-sh-setup"</em></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>This is not a command the end user would want to run.  Ever.
 761 This documentation is meant for people who are studying the
 762 Porcelain-ish scripts and/or are writing new ones.</p></div>
 763 <div class="paragraph"><p>The <em>git sh-setup</em> scriptlet is designed to be sourced (using
 764 <code>.</code>) by other shell scripts to set up some variables pointing at
 765 the normal Git directories and a few helper shell functions.</p></div>
 766 <div class="paragraph"><p>Before sourcing it, your script should set up a few variables;
 767 <code>USAGE</code> (and <code>LONG_USAGE</code>, if any) is used to define the message
 768 given by <code>usage()</code> shell function.  <code>SUBDIRECTORY_OK</code> can be set
 769 if the script can run from a subdirectory of the working tree
 770 (some commands do not).</p></div>
 771 <div class="paragraph"><p>The scriptlet sets <code>GIT_DIR</code> and <code>GIT_OBJECT_DIRECTORY</code> shell
 772 variables, but does <strong>not</strong> export them to the environment.</p></div>
 773 </div>
 774 </div>
 775 <div class="sect1">
 776 <h2 id="_functions">FUNCTIONS</h2>
 777 <div class="sectionbody">
 778 <div class="dlist"><dl>
 779 <dt class="hdlist1">
 780 die
 781 </dt>
 782 <dd>
 783 <p>
 784         exit after emitting the supplied error message to the
 785         standard error stream.
 786 </p>
 787 </dd>
 788 <dt class="hdlist1">
 789 usage
 790 </dt>
 791 <dd>
 792 <p>
 793         die with the usage message.
 794 </p>
 795 </dd>
 796 <dt class="hdlist1">
 797 set_reflog_action
 798 </dt>
 799 <dd>
 800 <p>
 801         Set <code>GIT_REFLOG_ACTION</code> environment to a given string (typically
 802         the name of the program) unless it is already set.  Whenever
 803         the script runs a <code>git</code> command that updates refs, a reflog
 804         entry is created using the value of this string to leave the
 805         record of what command updated the ref.
 806 </p>
 807 </dd>
 808 <dt class="hdlist1">
 809 git_editor
 810 </dt>
 811 <dd>
 812 <p>
 813         runs an editor of user&#8217;s choice (GIT_EDITOR, core.editor, VISUAL or
 814         EDITOR) on a given file, but error out if no editor is specified
 815         and the terminal is dumb.
 816 </p>
 817 </dd>
 818 <dt class="hdlist1">
 819 is_bare_repository
 820 </dt>
 821 <dd>
 822 <p>
 823         outputs <code>true</code> or <code>false</code> to the standard output stream
 824         to indicate if the repository is a bare repository
 825         (i.e. without an associated working tree).
 826 </p>
 827 </dd>
 828 <dt class="hdlist1">
 829 cd_to_toplevel
 830 </dt>
 831 <dd>
 832 <p>
 833         runs chdir to the toplevel of the working tree.
 834 </p>
 835 </dd>
 836 <dt class="hdlist1">
 837 require_work_tree
 838 </dt>
 839 <dd>
 840 <p>
 841         checks if the current directory is within the working tree
 842         of the repository, and otherwise dies.
 843 </p>
 844 </dd>
 845 <dt class="hdlist1">
 846 require_work_tree_exists
 847 </dt>
 848 <dd>
 849 <p>
 850         checks if the working tree associated with the repository
 851         exists, and otherwise dies.  Often done before calling
 852         cd_to_toplevel, which is impossible to do if there is no
 853         working tree.
 854 </p>
 855 </dd>
 856 <dt class="hdlist1">
 857 require_clean_work_tree &lt;action&gt; [&lt;hint&gt;]
 858 </dt>
 859 <dd>
 860 <p>
 861         checks that the working tree and index associated with the
 862         repository have no uncommitted changes to tracked files.
 863         Otherwise it emits an error message of the form <code>Cannot
 864         &lt;action&gt;: &lt;reason&gt;. &lt;hint&gt;</code>, and dies.  Example:
 865 </p>
 866 <div class="listingblock">
 867 <div class="content">
 868 <pre><code>require_clean_work_tree rebase "Please commit or stash them."</code></pre>
 869 </div></div>
 870 </dd>
 871 <dt class="hdlist1">
 872 get_author_ident_from_commit
 873 </dt>
 874 <dd>
 875 <p>
 876         outputs code for use with eval to set the GIT_AUTHOR_NAME,
 877         GIT_AUTHOR_EMAIL and GIT_AUTHOR_DATE variables for a given commit.
 878 </p>
 879 </dd>
 880 <dt class="hdlist1">
 881 create_virtual_base
 882 </dt>
 883 <dd>
 884 <p>
 885         modifies the first file so only lines in common with the
 886         second file remain. If there is insufficient common material,
 887         then the first file is left empty. The result is suitable
 888         as a virtual base input for a 3-way merge.
 889 </p>
 890 </dd>
 891 </dl></div>
 892 </div>
 893 </div>
 894 <div class="sect1">
 895 <h2 id="_git">GIT</h2>
 896 <div class="sectionbody">
 897 <div class="paragraph"><p>Part of the <a href="git.html">git(1)</a> suite</p></div>
 898 </div>
 899 </div>
 900 </div>
 901 <div id="footnotes"><hr /></div>
 902 <div id="footer">
 903 <div id="footer-text">
 904 Last updated
 905  2023-10-23 14:43:46 PDT
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