Restore shared XML files.

* man/less-variables.xml,
  man/standard-conf.xml,
  man/standard-options.xml,
  man/user-system-options.xml: Restore files from upstream (removed in
  commit d3ad6bf3).

4 files changed, 189 insertions, 0 deletions

diff --git a/man/less-variables.xml b/man/less-variables.xml
new file mode 100644
index 0000000000..0fb4d7fbcf
--- /dev/null
+++ b/man/less-variables.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0"?>
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+                 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
+
+<refsect1>
+        <title>Environment</title>
+
+        <variablelist class='environment-variables'>
+                <varlistentry id='pager'>
+                        <term><varname>$SYSTEMD_PAGER</varname></term>
+
+                        <listitem><para>Pager to use when
+                        <option>--no-pager</option> is not given;
+                        overrides <varname>$PAGER</varname>.  Setting
+                        this to an empty string or the value
+                        <literal>cat</literal> is equivalent to passing
+                        <option>--no-pager</option>.</para></listitem>
+                </varlistentry>
+
+                <varlistentry id='less'>
+                        <term><varname>$SYSTEMD_LESS</varname></term>
+
+                        <listitem><para>Override the default
+                        options passed to
+                        <command>less</command>
+                        (<literal>FRSXMK</literal>).</para></listitem>
+                </varlistentry>
+        </variablelist>
+</refsect1>
diff --git a/man/standard-conf.xml b/man/standard-conf.xml
new file mode 100644
index 0000000000..004f53f70c
--- /dev/null
+++ b/man/standard-conf.xml
@@ -0,0 +1,71 @@
+<?xml version="1.0"?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE refsection PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+          "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
+
+<refsection>
+  <refsection id='confd'>
+    <title>Configuration Directories and Precedence</title>
+
+    <para>Configuration files are read from directories in
+    <filename>/etc/</filename>, <filename>/run/</filename>, and
+    <filename>/usr/lib/</filename>, in order of precedence.
+    Each configuration file in these configuration directories shall be named in
+    the style of <filename><replaceable>filename</replaceable>.conf</filename>.
+    Files in <filename>/etc/</filename> override files with the same name in
+    <filename>/run/</filename> and <filename>/usr/lib/</filename>. Files in
+    <filename>/run/</filename> override files with the same name in
+    <filename>/usr/lib/</filename>.</para>
+
+    <para>Packages should install their configuration files in
+    <filename>/usr/lib/</filename>. Files in <filename>/etc/</filename> are
+    reserved for the local administrator, who may use this logic to override the
+    configuration files installed by vendor packages. All configuration files
+    are sorted by their filename in lexicographic order, regardless of which of
+    the directories they reside in. If multiple files specify the same option,
+    the entry in the file with the lexicographically latest name will take
+    precedence. It is recommended to prefix all filenames with a two-digit number
+    and a dash, to simplify the ordering of the files.</para>
+
+    <para>If the administrator wants to disable a configuration file supplied by
+    the vendor, the recommended way is to place a symlink to
+    <filename>/dev/null</filename> in the configuration directory in
+    <filename>/etc/</filename>, with the same filename as the vendor
+    configuration file.</para>
+  </refsection>
+
+  <refsection id='main-conf'>
+    <title>Configuration Directories and Precedence</title>
+
+    <para>Default configuration is defined during compilation, so a
+    configuration file is only needed when it is necessary to deviate
+    from those defaults. By default the configuration file in
+    <filename>/etc/systemd/</filename> contains commented out entries
+    showing the defaults as a guide to the administrator. This file
+    can be edited to create local overrides.
+    </para>
+
+    <para>When packages need to customize the configuration, they can
+    install configuration snippets in
+    <filename>/usr/lib/systemd/*.conf.d/</filename>. Files in
+    <filename>/etc/</filename> are reserved for the local
+    administrator, who may use this logic to override the
+    configuration files installed by vendor packages. The main
+    configuration file is read before any of the configuration
+    directories, and has the lowest precedence; entries in a file in
+    any configuration directory override entries in the single
+    configuration file. Files in the
+    <filename>*.conf.d/</filename> configuration subdirectories
+    are sorted by their filename in lexicographic order, regardless of
+    which of the subdirectories they reside in. If multiple files
+    specify the same option, the entry in the file with the
+    lexicographically latest name takes precedence.  It is recommended
+    to prefix all filenames in those subdirectories with a two-digit
+    number and a dash, to simplify the ordering of the files.</para>
+
+    <para>To disable a configuration file supplied by the vendor, the
+    recommended way is to place a symlink to
+    <filename>/dev/null</filename> in the configuration directory in
+    <filename>/etc/</filename>, with the same filename as the vendor
+    configuration file.</para>
+  </refsection>
+</refsection>
diff --git a/man/standard-options.xml b/man/standard-options.xml
new file mode 100644
index 0000000000..f214463392
--- /dev/null
+++ b/man/standard-options.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0"?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+          "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
+
+<variablelist>
+  <varlistentry id='help'>
+    <term><option>-h</option></term>
+    <term><option>--help</option></term>
+
+    <listitem id='help-text'>
+      <para>Print a short help text and exit.
+    </para></listitem>
+  </varlistentry>
+
+  <varlistentry id='version'>
+    <term><option>--version</option></term>
+
+    <listitem id='version-text'>
+      <para>Print a short version string and exit.</para>
+    </listitem>
+  </varlistentry>
+
+  <varlistentry id='no-pager'>
+    <term><option>--no-pager</option></term>
+
+    <listitem>
+      <para>Do not pipe output into a pager.</para>
+    </listitem>
+  </varlistentry>
+
+  <varlistentry id='no-legend'>
+    <term><option>--no-legend</option></term>
+
+    <listitem>
+      <para>Do not print the legend, i.e. column headers and the
+      footer with hints.</para>
+    </listitem>
+  </varlistentry>
+</variablelist>
diff --git a/man/user-system-options.xml b/man/user-system-options.xml
new file mode 100644
index 0000000000..8616c54249
--- /dev/null
+++ b/man/user-system-options.xml
@@ -0,0 +1,50 @@
+<?xml version="1.0"?>
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+          "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
+
+<variablelist>
+  <varlistentry id='user'>
+    <term><option>--user</option></term>
+
+    <listitem id='user-text'>
+      <para>Talk to the service manager of the calling user,
+      rather than the service manager of the system.</para>
+    </listitem>
+  </varlistentry>
+
+  <varlistentry id='system'>
+    <term><option>--system</option></term>
+
+    <listitem id='system-text'>
+      <para>Talk to the service manager of the system. This is the
+      implied default.</para>
+    </listitem>
+  </varlistentry>
+
+  <varlistentry id='host'>
+    <term><option>-H</option></term>
+    <term><option>--host=</option></term>
+
+    <listitem id='host-text'>
+      <para>Execute the operation remotely. Specify a hostname, or a
+      username and hostname separated by <literal>@</literal>, to
+      connect to. The hostname may optionally be suffixed by a
+      container name, separated by <literal>:</literal>, which
+      connects directly to a specific container on the specified
+      host. This will use SSH to talk to the remote machine manager
+      instance. Container names may be enumerated with
+      <command>machinectl -H
+      <replaceable>HOST</replaceable></command>.</para>
+    </listitem>
+  </varlistentry>
+
+  <varlistentry id='machine'>
+    <term><option>-M</option></term>
+    <term><option>--machine=</option></term>
+
+    <listitem id='machine-text'>
+      <para>Execute operation on a local container. Specify a
+      container name to connect to.</para>
+    </listitem>
+  </varlistentry>
+</variablelist>