Package apk implements a featurefmt.Lister for APK packages.

Package dpkg implements a featurefmt.Lister for dpkg packages.

Package rpm implements a featurefmt.Lister for rpm packages.

ListFeatures produces the list of FeatureVersions in an image layer using every registered Lister.

LoadFileForTest can be used in order to obtain the []byte contents of a file that is meant to be used for test data.

RegisterLister makes a Lister available by the provided name.

RequiredFilenames returns the total list of files required for all registered Listers.

TestLister runs a Lister on each provided instance of TestData and asserts the ouput to be equal to the expected output.

TestData represents the data used to test an implementation of Lister.

Lister represents an ability to list the features present in an image layer.