Migrate this project to minio micro services code

pkg/fs/fs-common.go

@@ -0,0 +1,75 @@
+/*
+ * Minio Cloud 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 fs
+
+import (
+	"bufio"
+	"bytes"
+	"os"
+	"sort"
+	"strings"
+	"time"
+)
+
+// Metadata - carries metadata about object
+type Metadata struct {
+	Md5sum      []byte
+	ContentType string
+}
+
+// sortUnique sort a slice in lexical order, removing duplicate elements
+func sortUnique(objects []string) []string {
+	objectMap := make(map[string]string)
+	for _, v := range objects {
+		objectMap[v] = v
+	}
+	var results []string
+	for k := range objectMap {
+		results = append(results, k)
+	}
+	sort.Strings(results)
+	return results
+}
+
+type contentInfo struct {
+	os.FileInfo
+	Prefix  string
+	Size    int64
+	Mode    os.FileMode
+	ModTime time.Time
+}
+
+type bucketDir struct {
+	files []contentInfo
+	root  string
+}
+
+func delimiter(object, delimiter string) string {
+	readBuffer := bytes.NewBufferString(object)
+	reader := bufio.NewReader(readBuffer)
+	stringReader := strings.NewReader(delimiter)
+	delimited, _ := stringReader.ReadByte()
+	delimitedStr, _ := reader.ReadString(delimited)
+	return delimitedStr
+}
+
+// byObjectMetadataKey is a sortable interface for UploadMetadata slice
+type byUploadMetadataKey []*UploadMetadata
+
+func (b byUploadMetadataKey) Len() int           { return len(b) }
+func (b byUploadMetadataKey) Swap(i, j int)      { b[i], b[j] = b[j], b[i] }
+func (b byUploadMetadataKey) Less(i, j int) bool { return b[i].Object < b[j].Object }