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<?xml version='1.0'?> <!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
    "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">

<!--
Copyright 2014 Anne LoVerso <anne.loverso@students.olin.edu>

SPDX-License-Identifier: LGPL-2.0+

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
-->

<refentry id="ostree">

    <refentryinfo>
        <title>ostree checkout</title>
        <productname>OSTree</productname>

        <authorgroup>
            <author>
                <contrib>Developer</contrib>
                <firstname>Colin</firstname>
                <surname>Walters</surname>
                <email>walters@verbum.org</email>
            </author>
        </authorgroup>
    </refentryinfo>

    <refmeta>
        <refentrytitle>ostree checkout</refentrytitle>
        <manvolnum>1</manvolnum>
    </refmeta>

    <refnamediv>
        <refname>ostree-checkout</refname>
        <refpurpose>Check out a commit into a filesystem</refpurpose>
    </refnamediv>

    <refsynopsisdiv>
            <cmdsynopsis>
                <command>ostree checkout</command> <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="req">COMMIT</arg> <arg choice="opt">DESTINATION</arg>
            </cmdsynopsis>
    </refsynopsisdiv>

    <refsect1>
        <title>Description</title>

        <para>
            Checks out the given commit into the filesystem under directory DESTINATION.  If DESTINATION is not specified, the COMMIT will become the destination checkout target.  If COMMIT destination already exists, command will error unless <option>--union</option> option is selected.
        </para>
    </refsect1>

    <refsect1>
        <title>Options</title>

        <variablelist>
            <varlistentry>
                <term><option>--user-mode</option>, <option>-U</option></term>

                <listitem><para>
                    Do not change file ownership or initialize extended attributes.
                </para></listitem>
            </varlistentry>

            <varlistentry>
                <term><option>--subpath</option>="PATH"</term>

                <listitem><para>
                    Checkout sub-directory PATH.
                </para></listitem>
            </varlistentry>

            <varlistentry>
                <term><option>--union</option></term>

                <listitem><para>
                    Keep existing directories and unchanged files, overwrite existing files.
                </para></listitem>
            </varlistentry>

            <varlistentry>
                <term><option>--union-add</option></term>

                <listitem><para>
                    Keep existing directories and files.
                </para></listitem>
            </varlistentry>

            <varlistentry>
                <term><option>--union-identical</option></term>

                <listitem><para>Like <literal>--union</literal>, but error out
                if a file would be replaced with a different file. Add new files
                and directories, ignore identical files, and keep existing
                directories. Requires <literal>-H</literal>.</para></listitem>
            </varlistentry>

            <varlistentry>
                <term><option>--whiteouts</option></term>

                <listitem><para>
                    Process whiteout files (Docker style).
                </para></listitem>
            </varlistentry>

            <varlistentry>
                <term><option>--allow-noent</option></term>

                <listitem><para>
                    Do nothing if specified path does not exist.
                </para></listitem>
            </varlistentry>

            <varlistentry>
                <term><option>--from-stdin</option></term>

                <listitem><para>
                    Process many checkouts from standard input.
                </para></listitem>
            </varlistentry>

            <varlistentry>
                <term><option>--from-file</option>="FILE"</term>

                <listitem><para>
                    Process many checkouts from input file.
                </para></listitem>
            </varlistentry>

            <varlistentry>
                <term><option>--fsync</option>="POLICY"</term>

                <listitem><para>
                    POLICY is a boolean which specifies whether fsync should be
                    used or not. Default to true.
                </para></listitem>
            </varlistentry>

            <varlistentry>
                <term><option>--require-hardlinks</option>,
                <option>-H</option></term>

                <listitem><para>
                    Do not fall back to full copies if hardlinking fails.
                </para></listitem>
            </varlistentry>

            <varlistentry>
                <term><option>--force-copy-zerosized</option>,
                <option>-z</option></term>

                <listitem><para>
                    This option does nothing; the functionality is now always on by default.
                </para></listitem>
            </varlistentry>

            <varlistentry>
                <term><option>--force-copy</option>, <option>-C</option></term>

                <listitem><para>
                    Never hardlink (but may reflink if available).
                </para></listitem>
            </varlistentry>

            <varlistentry>
                <term><option>--bareuseronly-dirs</option>,
                <option>-M</option></term>

                <listitem><para>
                    Suppress mode bits outside of 0775 for directories (suid,
                    world writable, etc.).
                </para></listitem>
            </varlistentry>

            <varlistentry>
                <term><option>--skip-list</option>="FILE"</term>

                <listitem><para>
                    Skip checking out the absolute file paths listed in FILE,
                    one per line.
                </para></listitem>
            </varlistentry>

            <varlistentry>
                <term><option>--selinux-policy</option></term>

                <listitem><para>
                    Set SELinux labels based on policy in root filesystem PATH
                    (may be /). This implies <literal>--force-copy</literal>.
                </para></listitem>
            </varlistentry>
        </variablelist>
    </refsect1>

<!-- check this example for accuracy-->
    <refsect1>
        <title>Example</title>
        <para><command>$ ostree checkout my-branch</command></para>
        <para><command>$ ls</command></para>
<programlisting>
        file1&nbsp;&nbsp;&nbsp;&nbsp;file2&nbsp;&nbsp;&nbsp;&nbsp;<emphasis>my-branch</emphasis>
</programlisting>
    </refsect1>
</refentry>