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Pulp Licensing FAQ » History » Sprint/Milestone 1

bmbouter, 02/04/2019 10:49 PM
An initial buildout of FAQ info

1 1 bmbouter 
# Pulp3 Licensing FAQ
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### Why would Pulp3 Plugins be affected by the license of the pulpcore-plugin package?





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The GPL FAQ states that subclassing as a mechansism is creating a derivative work. https://www.gnu.org/licenses/gpl-faq.en.html#OOPLang





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Coupled with the fact that theplugin API uses subclassing as a mechansism ( https://docs.pulpproject.org/en/pulpcore-plugin/nightly/plugin-writer/concepts/index.html#subclassing ) plugin code must be a GPLv2 or compatible license.





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### Why GPLv2?





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Because pulpcore-plugin and pulpcore both currently use GPLv2.





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https://github.com/pulp/pulp/blob/master/LICENSE  





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https://github.com/pulp/pulpcore-plugin/blob/master/LICENSE





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### Why does the pulpcore package matter? Plugin code is only imported from pulpcore-plugin, not pulpcore?





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For technical reasons, many of the objects in pulpcore-plugin are imported and offered from the pulpcore asset itself. There are enough of these cases that offering pulpcore and pulpcore-plugin as separate license types is infeasible.





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### What are the GPLv2 compatible license types?





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The gnu website has lots of info on this. This is a good place to start. https://www.gnu.org/licenses/gpl-faq.html#WhatDoesCompatMean