Refactoring file storage driver to fsstorage

pkgs/storage/fsstorage/fs_storage.go

@@ -0,0 +1,22 @@
+package fsstorage
+
+import (
+	"io/ioutil"
+	"os"
+	"path"
+	"path/filepath"
+)
+
+type FileSystemStorage struct {
+	RootDir string
+}
+
+func (storage FileSystemStorage) Get(objectPath string) ([]byte, error) {
+	return ioutil.ReadFile(path.Join(storage.RootDir, objectPath))
+
+}
+
+func (storage FileSystemStorage) Put(objectPath string, object []byte) error {
+	os.MkdirAll(filepath.Dir(path.Join(storage.RootDir, objectPath)), 0700)
+	return ioutil.WriteFile(path.Join(storage.RootDir, objectPath), object, 0600)
+}

pkgs/storage/fsstorage/fs_storage_test.go

@@ -0,0 +1,51 @@
+package fsstorage
+
+import (
+	. "gopkg.in/check.v1"
+	"io/ioutil"
+	"os"
+)
+
+type FileSystemStorageSuite struct{}
+
+var _ = Suite(&FileStorageSuite{})
+
+func makeTempTestDir() (string, error) {
+	return ioutil.TempDir("/tmp", "minio-test-")
+}
+
+func (s *FileStorageSuite) TestFileStoragePutAtRootPath(c *C) {
+	rootDir, err := makeTempTestDir()
+	c.Assert(err, IsNil)
+	defer os.RemoveAll(rootDir)
+
+	var storage ObjectStorage
+	storage = FileStorage{
+		RootDir: rootDir,
+	}
+
+	storage.Put("path1", []byte("object1"))
+
+	// assert object1 was created in correct path
+	object1, err := storage.Get("path1")
+	c.Assert(err, IsNil)
+	c.Assert(string(object1), Equals, "object1")
+}
+
+func (s *FileStorageSuite) TestFileStoragePutDirPath(c *C) {
+	rootDir, err := makeTempTestDir()
+	c.Assert(err, IsNil)
+	defer os.RemoveAll(rootDir)
+
+	var storage ObjectStorage
+	storage = FileStorage{
+		RootDir: rootDir,
+	}
+
+	storage.Put("path1/path2/path3", []byte("object"))
+
+	// assert object1 was created in correct path
+	object1, err := storage.Get("path1/path2/path3")
+	c.Assert(err, IsNil)
+	c.Assert(string(object1), Equals, "object")
+}