I have an update site in which I'm including my features, like this:
<?xml version="1.0" encoding="UTF-8"?>
<site>
<feature url="features/my_feature1_1.0.0.qualifier.jar" id="my_feature1" version="1.0.0.qualifier">
<category name="My Category"/>
</feature>
<feature url="features/my_feature2_1.0.0.qualifier.jar" id="my_feature2" version="1.0.0.qualifier">
<category name="My Category"/>
</feature>
...
</site>
Some of the plugins included by those features have dependencies on plugins that I download from other updates sites, right now I have to manually install those update sites before installing mine, to automate this, I can download and include those dependencies to my site.xml but at the end the .zip will contain them and the size will be too big, is there a way to link an external update site to mine so it is automatically downloaded during the installation of my update site?