Add everything back into one project hood, still missing iodine

pkg/storage/donut/objectstorage_internal.go

@@ -0,0 +1,86 @@
+/*
+ * 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 (
+	"errors"
+	"fmt"
+	"path"
+	"strings"
+
+	"github.com/minio-io/iodine"
+)
+
+func (d donut) makeDonutBucket(bucketName string) error {
+	err := d.getDonutBuckets()
+	if err != nil {
+		return iodine.New(err, nil)
+	}
+	if _, ok := d.buckets[bucketName]; ok {
+		return iodine.New(errors.New("bucket exists"), nil)
+	}
+	bucket, err := NewBucket(bucketName, d.name, d.nodes)
+	if err != nil {
+		return iodine.New(err, nil)
+	}
+	nodeNumber := 0
+	d.buckets[bucketName] = bucket
+	for _, node := range d.nodes {
+		disks, err := node.ListDisks()
+		if err != nil {
+			return iodine.New(err, nil)
+		}
+		for _, disk := range disks {
+			bucketSlice := fmt.Sprintf("%s$%d$%d", bucketName, nodeNumber, disk.GetOrder())
+			err := disk.MakeDir(path.Join(d.name, bucketSlice))
+			if err != nil {
+				return iodine.New(err, nil)
+			}
+		}
+		nodeNumber = nodeNumber + 1
+	}
+	return nil
+}
+
+func (d donut) getDonutBuckets() error {
+	for _, node := range d.nodes {
+		disks, err := node.ListDisks()
+		if err != nil {
+			return iodine.New(err, nil)
+		}
+		for _, disk := range disks {
+			dirs, err := disk.ListDir(d.name)
+			if err != nil {
+				return iodine.New(err, nil)
+			}
+			for _, dir := range dirs {
+				splitDir := strings.Split(dir.Name(), "$")
+				if len(splitDir) < 3 {
+					return iodine.New(errors.New("corrupted backend"), nil)
+				}
+				bucketName := splitDir[0]
+				// we dont need this NewBucket once we cache from makeDonutBucket()
+				bucket, err := NewBucket(bucketName, d.name, d.nodes)
+				if err != nil {
+					return iodine.New(err, nil)
+				}
+				d.buckets[bucketName] = bucket
+			}
+		}
+	}
+	return nil
+}