reporeader

type RepoReader interface {
	Exists(path string) bool
	ReadFile(path string) ([]byte, error)
	// FindFiles returns a list of files that match the given patterns searching up to
	// maxDepth nested sub-directories. maxDepth of 0 limits files to the root dir.
	FindFiles(path string, patterns []string, maxDepth int) ([]string, error)
}

type TestRepoReader struct {
	Files map[string][]byte
}

type VariableExtractor interface {
	ReadDefaults(r RepoReader) (map[string]string, error)
	MatchesLanguage(lowerlang string) bool
	GetName() string
}