filesystem.go

package filesystem

// See: https://talks.golang.org/2012/10things.slide#1
// Also see github.com/spf13/afero

// Playground for testing some fake / TDD ideas around filesystem bits
// With https://github.com/maxbrunsfeld/counterfeiter can be used
// to Stub out various os.* bits to focus tests

import (
	"io"
	"os"
)

//go:generate counterfeiter . Filesystem
type Filesystem interface {
	Open(name string) (File, error)
	OpenFile(name string, flag int, perm os.FileMode) (File, error)
}

type File interface {
	io.Closer
	io.Reader
	io.Writer
}

type localFilesystem struct{}

func (localFS *localFilesystem) Open(name string) (File, error) {
	return os.Open(name)
}

func (localFS *localFilesystem) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
	return os.OpenFile(name, flag, perm)
}

func NewLocalFilesystem() FileSystem {
  return &localFilesystem{}
}