Linting a podspec is different from linting a repo. I'm toying around with the idea of extracting the linter from the ´Command::Spec´ class.
Under this configuration pod spec lint will always download and fully lint a podspec and pod repo lint would perform a lightweight lint (no download) and other additional checks. Like ensuring that the folder structure of the repo is correct.
pod spec lint
pod repo lint
[Linter] Extracted the Linter and added `pod repo lint`.