Usage:

git clone https://github.com/quoideneuf/ojs-2xto3x-xwalk
cd ojs-2xto3x-xwalk
composer update
php transform.php --xml 2xports/articles.xml --out 3xports/testing.xml --xsl transform.xsl --test

Or, if you don't use composer, you can just run a transform

git clone https://github.com/quoideneuf/ojs-2xto3x-xwalk
cd ojs-2xto3x-xwalk
php transform.php --xml 2xports/articles.xml --out 3xports/testing.xml --xsl transform.xsl

To provide default values to the stylesheet, use the --article-defaults flag:

php transform.php --xml 2xports/articles.xml --out 3xports/testing.xml --xsl transform.xsl --article-defaults article-defaults.txt

Depending on your situation, it may be necessary to provide default values in order for the output to be importable. See the example defaults value.

You can transform whole directories:

php transform.php --xml raw-data-dir --out converted-data-dir --xsl transform.xsl