source: gnome/platform/tracker3-miners.xml@ 4aa2043

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../../general.ent">
  %general-entities;

  <!ENTITY tracker3-miners-download-http "&gnome-download-http;/tracker-miners/3.6/tracker-miners-&tracker3-miners-version;.tar.xz">
  <!ENTITY tracker3-miners-download-ftp  " ">
  <!ENTITY tracker3-miners-md5sum        "36b1149a9b10ee3db3e3aa6d8a95c5dc">
  <!ENTITY tracker3-miners-size          "7.2 MB">
  <!ENTITY tracker3-miners-buildsize     "85 MB (with tests)">
  <!ENTITY tracker3-miners-time          "0.3 SBU (with parallelism=4; add as much as 1.0 SBU for tests, dependent on disk speed)">
]>

<sect1 id="tracker3-miners" xreflabel="tracker-miners-&tracker3-miners-version;">
  <?dbhtml filename="tracker3-miners.html"?>


  <title>Tracker-miners-&tracker3-miners-version;</title>

  <indexterm zone="tracker3-miners">
    <primary sortas="a-tracker3-miners">tracker3-miners</primary>
  </indexterm>

  <sect2 role="package">
    <title>Introduction to Tracker-miners</title>

    <para>
      The <application>Tracker-miners</application> package contains a set of
      data extractors for Tracker.
    </para>

    &lfs120_checked;

    <bridgehead renderas="sect3">Package Information</bridgehead>
    <itemizedlist spacing="compact">
      <listitem>
        <para>
          Download (HTTP): <ulink url="&tracker3-miners-download-http;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download (FTP): <ulink url="&tracker3-miners-download-ftp;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download MD5 sum: &tracker3-miners-md5sum;
        </para>
      </listitem>
      <listitem>
        <para>
          Download size: &tracker3-miners-size;
        </para>
      </listitem>
      <listitem>
        <para>
          Estimated disk space required: &tracker3-miners-buildsize;
        </para>
      </listitem>
      <listitem>
        <para>
          Estimated build time: &tracker3-miners-time;
        </para>
      </listitem>
    </itemizedlist>

<!--
    <bridgehead renderas="sect3">Additional Downloads</bridgehead>
    <itemizedlist spacing="compact">
      <listitem>
        <para>
          Required patch:
          <ulink url="&patch-root;/tracker-miners-&tracker3-miners-version;-upstream_fixes-1.patch"/>
        </para>
      </listitem>
    </itemizedlist>
-->

    <bridgehead renderas="sect3">Tracker-miners Dependencies</bridgehead>

    <bridgehead renderas="sect4">Required</bridgehead>
    <para role="required">
      <xref linkend="gst10-plugins-base"/>,
      <xref linkend="tracker3"/>,
      <xref linkend="exempi"/>, and
      <xref linkend="gexiv2"/>
    </para>

    <bridgehead renderas="sect4">Recommended</bridgehead>
    <para role="recommended">
      <xref linkend="giflib"/>,
      <xref role='runtime' linkend="gst10-plugins-good"/> (runtime),
      <xref role='runtime' linkend="gst10-libav"/> (runtime),
      <xref linkend="icu"/>,
      <xref linkend="libexif"/>,
      <xref linkend="libgrss"/>,
      <xref linkend="libgxps"/>,
      <xref linkend="libseccomp"/>,
      <xref linkend="poppler"/>, and
      <xref linkend="upower"/>
    </para>

    <bridgehead renderas="sect4">Optional</bridgehead>
    <para role="optional">
      <xref linkend="asciidoc"/>,
      <xref linkend="cmake"/>,
      <xref linkend="dconf"/>,
      <xref linkend="ffmpeg"/>,
      <xref linkend="libgsf"/>,
      <xref linkend="NetworkManager"/>,
      <xref linkend="taglib"/>,
      <xref linkend="totem-pl-parser"/>,
      <ulink url="https://github.com/lipnitsk/libcue">libcue</ulink>,
      <ulink url="https://libiptcdata.sourceforge.net/">libitpcdata</ulink>,
      <ulink url="https://libosinfo.org">libosinfo</ulink>, and
      <ulink url="https://gitlab.gnome.org/GNOME/gupnp">gupnp</ulink>
    </para>

  </sect2>

  <sect2 role="installation">
    <title>Installation of Tracker-miners</title>

    <note>
      <para>
        If you plan to run the tests, some timeouts are too short when
        using spinning disks. There are two places where timeouts are
        used: first, individual tests inside a group of tests have a
        default timeout of 10s. This can be changed by setting the environment
        variable <envar>TRACKER_TESTS_AWAIT_TIMEOUT</envar> to the desired
        value when running the tests (see below). Second, a global timeout
        for a group of tests is fixed at configuration time. The default value
        in the <filename class="directory">functional-tests</filename>
        directory (other directories have only short lived tests) may be
        increased with the following command (replace 200 with a value
        suitable for your machine):
      </para>

<screen remap="test"><userinput>sed -i s/120/<replaceable>200</replaceable>/ tests/functional-tests/meson.build</userinput></screen>
    </note>

<!-- Applied in 3.6.2
    <para>
      First, fix some problems with the recent tightening of the seccomp
      sandbox:
    </para>

<screen><userinput remap="pre">patch -Np1 -i ../tracker-miners-&tracker3-miners-version;-upstream_fixes-1.patch</userinput></screen>
-->

    <para>
      First, fix some crashes introduced by gstreamer-1.22.9:
      <!-- https://gitlab.gnome.org/GNOME/tracker-miners/-/issues/252 and
      https://gitlab.gnome.org/GNOME/tracker-miners/-/issues/299 -->
    </para>

<screen><userinput remap="pre">sed -i '/ALLOW_RULE (shutdown);/a ALLOW_RULE (getsockopt);' src/libtracker-miners-common/tracker-seccomp.c</userinput></screen>

    <para>
      Install <application>Tracker-miners</application> by running the following
      commands:
    </para>


<screen revision="systemd"><userinput>mkdir build &amp;&amp;
cd    build &amp;&amp;

meson setup --prefix=/usr       \
            --buildtype=release \
            -Dman=false         \
            ..                  &amp;&amp;
ninja</userinput></screen>

<screen revision="sysv"><userinput>mkdir build &amp;&amp;
cd    build &amp;&amp;

meson setup --prefix=/usr                 \
            --buildtype=release           \
            -Dsystemd_user_services=false \
            -Dman=false                   \
            ..                            &amp;&amp;
ninja</userinput></screen>

    <para>
      <!-- Some tests fail in 3.6.1 due to seccomp sandbox changes.
      See https://github.blog/2023-10-09-coordinated-disclosure-1-click-rce-on-gnome-cve-2023-43641/ -->
      To test the results, issue (adjust the individual test timeout to a
      value suitable for your machine, see the note above):
    </para>

<screen remap="test"><userinput>dbus-run-session env TRACKER_TESTS_AWAIT_TIMEOUT=<replaceable>20</replaceable> ninja test &amp;&amp;
rm -rf ~/tracker-tests</userinput></screen>

    <note>
      <para>
        The tests create files in the user directory (up to 24 MB), so
        they have to be removed afterwards.
      </para>
    </note>

    <para>
      Now, as the <systemitem class="username">root</systemitem> user:
    </para>

<screen role="root"><userinput>ninja install</userinput></screen>
  </sect2>

  <sect2 role="commands">
    <title>Command Explanations</title>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
      href="../../xincludes/meson-buildtype-release.xml"/>

    <para>
      <parameter>-Dman=false</parameter>: This switch prevents the build process
      from generating man pages. Omit this switch if you have
      <xref linkend="asciidoc" role="nodep"/> installed and wish to generate and
      install the man pages.
    </para>

    <para revision="sysv">
      <parameter>-Dsystemd_user_services=false</parameter>: This switch prevents
      the build process from installing systemd units since they are useless
      on SysV systems.
    </para>

    <para>
      <option>-Dseccomp=false</option>: This option disables the seccomp system
      call filter. On some architectures, such as i686 and ARM, the functions
      that tracker-miners uses are not guarded properly, and tracker-miners
      will get killed with a SIGSYS as a result.
    </para>

    <para>
      <option>-Dminer_rss=false</option>: Use this option if you have not
      installed the recommended dependency libgrss.
    </para>

    <para>
      <option>-Dbattery_detection=none</option>: Use this option if you have
      not installed the recommended dependency upower.  Do not use this
      option if your system has a battery (laptop battery or UPS), or
      tracker miners may waste the battery power and lifespan when the A/C
      power is unavailable.
    </para>

  </sect2>

  <sect2 role="content">
    <title>Contents</title>

    <segmentedlist>
      <segtitle>Installed Programs</segtitle>
      <segtitle>Installed Libraries</segtitle>
      <segtitle>Installed Directories</segtitle>

      <seglistitem>
        <seg>
          None
        </seg>
        <seg>
          Several modules under /usr/lib/tracker-miners-3.0
        </seg>
        <seg>
          /usr/lib/tracker-miners-3.0,
          /usr/libexec/tracker3, and
          /usr/share/tracker3-miners
        </seg>
      </seglistitem>
    </segmentedlist>
  </sect2>

</sect1>