type File interface {

	// Filename gets the full path and filename to the file.
	Filename() string

	// Path gets the relative path including file name and extension.
	// The directory is relative to the content root.
	Path() string

	// Dir gets the name of the directory that contains this file.
	// The directory is relative to the content root.
	Dir() string

	// Extension gets the file extension, i.e "myblogpost.md" will return "md".
	Extension() string
	// Ext is an alias for Extension.
	Ext() string // Hmm... Deprecate Extension

	// Lang for this page, if `Multilingual` is enabled on your site.
	Lang() string

	// LogicalName is filename and extension of the file.
	LogicalName() string

	// Section is first directory below the content root.
	// For page bundles in root, the Section will be empty.
	Section() string

	// BaseFileName is a filename without extension.
	BaseFileName() string

	// TranslationBaseName is a filename with no extension,
	// not even the optional language extension part.
	TranslationBaseName() string

	// UniqueID is the MD5 hash of the file's path and is for most practical applications,
	// Hugo content files being one of them, considered to be unique.
	UniqueID() string

	FileInfo() os.FileInfo

	String() string
}

type FileInfo struct {
	// contains filtered or unexported fields
}

type Filesystem struct {
	Base string

	SourceSpec
	// contains filtered or unexported fields
}

type Input interface {
	Files() []ReadableFile
}

type ReadableFile interface {
	File
	Open() (io.ReadCloser, error)
}

type SourceSpec struct {
	*helpers.PathSpec

	SourceFs afero.Fs

	Languages              map[string]interface{}
	DefaultContentLanguage string
	DisabledLanguages      map[string]bool
	// contains filtered or unexported fields
}