<stránka

	xmlns="https://trac.frantovo.cz/xml-web-generator/wiki/xmlns/strana"

	xmlns:m="https://trac.frantovo.cz/xml-web-generator/wiki/xmlns/makro">

	<nadpis>Reading Mercurial history using XMLTable and SQL</nadpis>

	<perex>filtering the commit log from hg VCS</perex>

	<m:pořadí-příkladu>02900</m:pořadí-příkladu>

	<text xmlns="http://www.w3.org/1999/xhtml">

		<p>

			The <a href="https://www.mercurial-scm.org/">Mercurial</a> version control system 

			can provide the repository commit log in a machine readable format – XML.

			We will transform this XML to relations using the <code>relpipe-in-xmltable</code>

			and then filter records using the SQL language in the <code>relpipe-tr-sql</code> tool.

			Everything on-the-fly, in a single shell pipeline. Of course, we can cache intermediate products in a file if needed.

		</p>

		<m:pre jazyk="bash" src="examples/mercurial-hg-xmltable-sql.sh"/>

		<p>This script will generate several lovely relations:</p>

		<m:pre jazyk="text" src="examples/mercurial-hg-xmltable-sql.txt"/>

		<p>

			Using different output filter than <code>relpipe-out-tabular</code>,

			we can serialize the relational output into other formats (XML, CSV, Recfile, ODS, ASN.1 BER etc.),

			display them in a GUI or execute some shell command for each record.

		</p>

	</text>

</stránka>