man/systemd-xdg-autostart-generator.xml


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<?xml version="1.0"?>
<!--*-nxml-*-->
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
<refentry id="systemd-xdg-autostart-generator" conditional="ENABLE_XDG_AUTOSTART">

  <refentryinfo>
    <title>systemd-xdg-autostart-generator</title>
    <productname>systemd</productname>
  </refentryinfo>

  <refmeta>
    <refentrytitle>systemd-xdg-autostart-generator</refentrytitle>
    <manvolnum>8</manvolnum>
  </refmeta>

  <refnamediv>
    <refname>systemd-xdg-autostart-generator</refname>
    <refpurpose>User unit generator for XDG autostart files</refpurpose>
  </refnamediv>

  <refsynopsisdiv>
    <para><filename>/usr/lib/systemd/user-generators/systemd-xdg-autostart-generator</filename></para>
  </refsynopsisdiv>

  <refsect1>
    <title>Description</title>

    <para><filename>systemd-xdg-autostart-generator</filename> is a generator
    that creates .service units for
    <ulink url="https://specifications.freedesktop.org/autostart-spec/autostart-spec-latest.html">XDG autostart</ulink>
    files.
    This permits desktop environments to delegate startup of these applications to
    <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
    .</para>

    <para>Units created by <filename>systemd-xdg-autostart-generator</filename>
    can be started by the desktop environment using <literal>xdg-desktop-autostart.target</literal>.
    See
    <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>
    for more details.</para>

    <para>XDG autostart may be conditionalized using both standardized and non-standardized keys.
    In order to handle these, the generator may create one or more <varname>ExecCondition=</varname> entries.
    For non-standardized keys, well-known helper binaries provided by Desktop Environments are used.
    All external helpers <emphasis>must</emphasis> detect their corresponding desktop environment and
    <emphasis>must</emphasis> return success when run in a different environment.
    This is important as all <varname>ExecCondition=</varname> directives must succeed for an application to be started.</para>

    <table>
      <title>
        Special XDG desktop file entries that are processed
      </title>
      <tgroup cols='2'>
        <colspec colname='entry' />
        <colspec colname='handling' />
        <thead>
          <row>
            <entry>Entry</entry>
            <entry>Handling</entry>
          </row>
        </thead>
        <tbody>
          <row>
            <entry><varname>Hidden=</varname>, <varname>X-systemd-skip=</varname></entry>
            <entry>No service will be generated if set to true</entry>
          </row>
          <row>
            <entry><varname>OnlyShowIn=</varname>, <varname>NotShowIn=</varname></entry>
            <entry><varname>ExecCondition=</varname> using <filename>systemd-xdg-autostart-condition</filename></entry>
          </row>
          <row>
            <entry><varname>TryExec=</varname></entry>
            <entry>No service will be generated if the binary does not exist or cannot be executed</entry>
          </row>
          <row>
            <entry><varname>AutostartCondition=</varname> (GNOME extension)</entry>
            <entry><varname>ExecCondition=</varname> using <filename>gnome-systemd-autostart-condition</filename></entry>
          </row>
          <row>
            <entry><varname>X-GNOME-Autostart-Phase=</varname></entry>
            <entry>No service will be generated if set to any value</entry>
          </row>
          <row>
            <entry><varname>X-KDE-autostart-condition=</varname></entry>
            <entry><varname>ExecCondition=</varname> using <filename>kde-systemd-start-condition</filename></entry>
          </row>
        </tbody>
      </tgroup>
    </table>

    <para><filename>systemd-xdg-autostart-generator</filename> implements
    <citerefentry><refentrytitle>systemd.generator</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
  </refsect1>

  <refsect1>
    <title>See Also</title>
    <para>
      <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
      <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
      <citerefentry><refentrytitle>systemd.target</refentrytitle><manvolnum>5</manvolnum></citerefentry>
    </para>
  </refsect1>

</refentry>