We have a declarative ruby file that must include a license ( https://github.com/CocoaPods/Specs/blob/master/ARAnalytics/1.2/ARAnalytics.podspec https://github.

We have a declarative ruby file that must include a license ( https://github.com/CocoaPods/Specs/blob/master/ARAnalytics/1.2/ARAnalytics.podspec https://github.com/CocoaPods/Specs/blob/master/ARAnalytics/1... ) which doesn't have to be OSS ( because we support closed source libraries ) but is nearly always OSS. So we have a CI linter that checks every library.