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<div class="title">;appdata Code 12 Application Metadata </div> </div>
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<div class="textblock"><dl class="section author"><dt>Author</dt><dd>Michael Andres <a href="#" onclick="location.href='mai'+'lto:'+'ma@'+'su'+'se.'+'de'; return false;">ma@su<span style="display: none;">.nosp@m.</span>se.d<span style="display: none;">.nosp@m.</span>e</a></dd></dl>
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<h1><a class="anchor" id="zypp-appdata_intro"></a>
Intro</h1>
<p>Since Code12 we support <code>application</code> as new kind of resolvable object (see e.g. <a href="http://worldofgnome.org/gnome-software-on-opensuse">http://worldofgnome.org/gnome-software-on-opensuse</a>). This is short abstract about how a <code>package</code> and it's associated <code>application</code> are connected metadata wise.</p>
<div class="fragment"><div class="line"><span class="preprocessor"># zypper download virt-manager</span></div><div class="line">...</div><div class="line">Retrieving <span class="keyword">package </span>virt-manager-1.2.1-8.1.noarch (1/1), 354.8 KiB ( 2.6 MiB unpacked)</div><div class="line">(1/1) /var/cache/zypp/packages/server/suse/noarch/virt-manager-1.2.1-8.1.noarch.rpm .......[done]</div></div><!-- fragment --> <div class="fragment"><div class="line"><span class="preprocessor"># rpm -qplv /var/cache/zypp/packages/server/suse/noarch/virt-manager-1.2.1-8.1.noarch.rpm | grep /usr/share/appdata</span></div><div class="line"><span class="preprocessor">-rw-r--r-- 1 root root 1119 Sep 18 09:47 /usr/share/appdata/virt-manager.appdata.xml</span></div></div><!-- fragment --><p>The <code>package:virt-manager</code> provides <code>application</code> metadata in its file <code>/usr/share/appdata/virt-manager.appdata.xml</code>. After installation the presence of <code>/usr/share/appdata/virt-manager.appdata.xml</code> indicates the installed <code>application:'Virtual Machine Manager'</code>. The connection is provided by the <code>package:virt-manager</code> <code>appdata</code> provides...</p>
<div class="fragment"><div class="line"><span class="preprocessor"># zypp-NameReqPrv -D virt-manager</span></div><div class="line">...</div><div class="line">(976)virt-manager-1.2.1-8.1.noarch(@System)</div><div class="line"> PROVIDES (5){</div><div class="line"> application()</div><div class="line"> appdata()</div><div class="line"> appdata(virt-manager.appdata.<a class="code" href="namespacexml.html">xml</a>)</div><div class="line"> ^^^^^^^^^^^^</div></div><!-- fragment --><p>...matching the content of <code>/usr/share/appdata/virt-manager</code>.appdata.xml:</p>
<div class="fragment"><div class="line"><span class="preprocessor"># less /usr/share/appdata/virt-manager.appdata.xml</span></div><div class="line"><application></div><div class="line"> <<span class="keywordtype">id</span> type=<span class="stringliteral">"desktop"</span>>virt-manager.desktop</<span class="keywordtype">id</span>></div><div class="line"> ^^ ^^^^^^^^^^^^</div><div class="line"> <metadata_license>CC0-1.0</metadata_license></div><div class="line"> <project_license>GPL-2.0+</project_license></div><div class="line"> <name>Virtual Machine Manager</name></div></div><!-- fragment --><p>To establish this connection for uninstalled <code>package/application</code> pairs, the repository metadata must provide the <code>appdata.xml</code> files for the included packages. This is done in for <code>susetags</code> repos in <code>suse/setup/descr/appdata.xml.gz</code>, for <code>rpmmd</code> in <code>repodata/CHCKSUM-appdata.xml.gz</code>.</p>
<h1><a class="anchor" id="zypp-appdata_wrong_appdata"></a>
Missing or wrong appdata</h1>
<div class="fragment"><div class="line"><span class="preprocessor"># zypper se -s -t application 'Virtual Machine Manager'</span></div><div class="line">...</div><div class="line">S | Name | Type | Version | Arch | Repository</div><div class="line">--+-------------------------+-------------+---------+--------+------------------</div><div class="line">i | Virtual Machine Manager | application | | noarch | (System Packages)</div></div><!-- fragment --> <div class="fragment"><div class="line"><span class="preprocessor"># zypper se -s virt-manager</span></div><div class="line">...</div><div class="line">S | Name | Type | Version | Arch | Repository</div><div class="line">--+---------------------+------------+-----------+--------+------------------</div><div class="line">i | virt-manager | <span class="keyword">package </span>| 1.2.1-8.1 | noarch | SLE-12-SP1-Server</div></div><!-- fragment --><dl class="section note"><dt>Note</dt><dd>While the <code>package:virt-manager</code> is installed and also available in the SLE-12-SP1-Server repository, <code>(System Packages)</code> indicates that the <code>application</code> is installed, but not provided by any repository. This usually happens if the repository provides wrong appdata, or no appdata at all.</dd></dl>
<div class="fragment"><div class="line"><span class="preprocessor"># zypper in -f virt-manager</span></div><div class="line">...</div><div class="line">Forcing installation of <span class="stringliteral">'virt-manager-1.2.1-8.1.noarch'</span> from repository <span class="stringliteral">'SLE-12-SP1-Server'</span>.</div><div class="line">Resolving <span class="keyword">package </span>dependencies...</div><div class="line"></div><div class="line">The following application is going to be REMOVED:</div><div class="line"> "Virtual Machine Manager"</div><div class="line"></div><div class="line">The following package is going to be reinstalled:</div><div class="line"> virt-manager</div></div><!-- fragment --><p><code>Zypper</code> can not 'see' that the new package also transports a new application. Due to this <code>zypper</code> must assume the installed application gets deleted, when the package is reinstalled or updated.</p>
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