Add full API tests, move storage/donut to donut, add disk tests as well

pkg/donut/rebalance.go

@@ -0,0 +1,57 @@
+/*
+ * Minimalist Object Storage, (C) 2015 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package donut
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/minio/minio/pkg/donut/disk"
+	"github.com/minio/minio/pkg/iodine"
+)
+
+// Rebalance -
+func (donut API) Rebalance() error {
+	var totalOffSetLength int
+	var newDisks []disk.Disk
+	var existingDirs []os.FileInfo
+	for _, node := range donut.nodes {
+		disks, err := node.ListDisks()
+		if err != nil {
+			return iodine.New(err, nil)
+		}
+		totalOffSetLength = len(disks)
+		fmt.Println(totalOffSetLength)
+		for _, disk := range disks {
+			dirs, err := disk.ListDir(donut.config.DonutName)
+			if err != nil {
+				return iodine.New(err, nil)
+			}
+			if len(dirs) == 0 {
+				newDisks = append(newDisks, disk)
+			}
+			existingDirs = append(existingDirs, dirs...)
+		}
+	}
+	for _, dir := range existingDirs {
+		splits := strings.Split(dir.Name(), "$")
+		bucketName, segment, offset := splits[0], splits[1], splits[2]
+		fmt.Println(bucketName, segment, offset)
+	}
+	return nil
+}