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gnosygnu_xowa/home/wiki/Dev/Command-line/Wikidata.html

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<!DOCTYPE html>
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<title>Dev/Command-line/Wikidata - XOWA</title>
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<h1 id="firstHeading" class="firstHeading"><span>Dev/Command-line/Wikidata</span></h1>
<div id="bodyContent" class="mw-body-content">
<div id="siteSub">From XOWA: the free, open-source, offline wiki application</div>
<div id="contentSub"></div>
<div id="mw-content-text" lang="en" dir="ltr" class="mw-content-ltr">
<div id="toc" class="toc">
<div id="toctitle" class="toctitle">
<h2>
Contents
</h2>
</div>
<ul>
<li class="toclevel-1 tocsection-1">
<a href="#Import_using_the_XML_dump"><span class="tocnumber">1</span> <span class="toctext">Import using the XML dump</span></a>
</li>
<li class="toclevel-1 tocsection-2">
<a href="#Import_using_the_JSON_dump"><span class="tocnumber">2</span> <span class="toctext">Import using the JSON dump</span></a>
</li>
</ul>
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<p>
XOWA can import Wikidata through the command-line
</p>
<h2>
<span class="mw-headline" id="Import_using_the_XML_dump">Import using the XML dump</span>
</h2>
<p>
XOWA can build wikidata using the XML dump at www.mediwa/wikidatawiki/. This import is basically the same as an import of any other wiki.
</p>
<p>
The script for the XML import follows.
</p>
<pre class='code'>
// build wikidata database; this only needs to be done once, whenever wikidata is updated
add ('www.wikidata.org' , 'util.cleanup') {delete_all = 'y';}
add ('www.wikidata.org' , 'util.download') {dump_type = 'pages-articles';}
add ('www.wikidata.org' , 'util.download') {dump_type = 'categorylinks';}
add ('www.wikidata.org' , 'util.download') {dump_type = 'page_props';}
add ('www.wikidata.org' , 'util.download') {dump_type = 'image';}
add ('www.wikidata.org' , 'text.init');
add ('www.wikidata.org' , 'text.page');
add ('www.wikidata.org' , 'text.cat.core');
add ('www.wikidata.org' , 'text.cat.link');
add ('www.wikidata.org' , 'text.cat.hidden');
add ('www.wikidata.org' , 'text.term');
add ('www.wikidata.org' , 'text.css');
add ('www.wikidata.org' , 'util.cleanup') {delete_tmp = 'y'; delete_by_match('*.xml|*.sql|*.bz2|*.gz');}
</pre>
<h2>
<span class="mw-headline" id="Import_using_the_JSON_dump">Import using the JSON dump</span>
</h2>
<p>
As of v2.6.3, XOWA also provides basic support for building wikidata from the JSON dump. This support was added for the following reasons:
</p>
<ul>
<li>
<b>Current delay in XML dumps</b>: The last good wikidata XML dump was 2+ months old due to problems with dump generation. See: <a href="https://phabricator.wikimedia.org/T98585" rel="nofollow" class="external free">https://phabricator.wikimedia.org/T98585</a>
</li>
<li>
<b>JSON dumps recommended</b>: Wikidata seems to prefer using the JSON dump over the XML dump. See: <a href="http://www.wikidata.org/wiki/Wikidata:Database_download" rel="nofollow" class="external free">http://www.wikidata.org/wiki/Wikidata:Database_download</a>
</li>
<li>
<b>JSON dumps are more frequent</b>: The JSON dumps have been dumping regularly on a weekly basis. In contrast the XML dumps take 3 - 4 weeks.
</li>
</ul>
<p>
Despite these reasons, there are limitations to the JSON dump.
</p>
<ul>
<li>
<b>Non-JSON pages not available</b>: The JSON dump doesn't provide other pages, such as the Main Page or MediaWiki pages. Only pages in the main and property namespaces are available. This is by design. See: <a href="https://lists.wikimedia.org/pipermail/wikidata/2015-June/006441.html" rel="nofollow" class="external free">https://lists.wikimedia.org/pipermail/wikidata/2015-June/006441.html</a>
</li>
<li>
<b>Page metadata not available</b> : Certain properties are not available, such as page_id and last_modified. XOWA provides substitutes for these values, but they will not match the Wikimedia version
</li>
</ul>
<p>
The script for the JSON import follows.
</p>
<pre class='code'>
add ('www.wikidata.org' , 'util.cleanup') {delete_all = 'y';}
// TODO: add ('www.wikidata.org' , 'util.download') {dump_type = 'wikidata-json';}
add ('www.wikidata.org' , 'wbase.json_dump');
add ('www.wikidata.org' , 'text.term');
add ('www.wikidata.org' , 'text.css');
add ('www.wikidata.org' , 'util.cleanup') {delete_tmp = 'y'; delete_by_match('*.xml|*.sql|*.bz2|*.gz|*.json');}
</pre>
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