miniobrowser: Bring Minio browser source into minio repo. (#3617)

browser/app/js/utils.js

@@ -0,0 +1,85 @@
+/*
+ * Minio Browser (C) 2016 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.
+ */
+
+import { minioBrowserPrefix } from './constants.js'
+
+export const sortObjectsByName = (objects, order) => {
+  let folders = objects.filter(object => object.name.endsWith('/'))
+  let files = objects.filter(object => !object.name.endsWith('/'))
+  folders = folders.sort((a, b) => {
+    if (a.name.toLowerCase() < b.name.toLowerCase()) return -1
+    if (a.name.toLowerCase() > b.name.toLowerCase()) return 1
+    return 0
+  })
+  files = files.sort((a, b) => {
+    if (a.name.toLowerCase() < b.name.toLowerCase()) return -1
+    if (a.name.toLowerCase() > b.name.toLowerCase()) return 1
+    return 0
+  })
+  if (order) {
+    folders = folders.reverse()
+    files = files.reverse()
+  }
+  return [...folders, ...files]
+}
+
+export const sortObjectsBySize = (objects, order) => {
+  let folders = objects.filter(object => object.name.endsWith('/'))
+  let files = objects.filter(object => !object.name.endsWith('/'))
+  files = files.sort((a, b) => a.size - b.size)
+  if (order)
+    files = files.reverse()
+  return [...folders, ...files]
+}
+
+export const sortObjectsByDate = (objects, order) => {
+  let folders = objects.filter(object => object.name.endsWith('/'))
+  let files = objects.filter(object => !object.name.endsWith('/'))
+  files = files.sort((a, b) => new Date(a.lastModified).getTime() - new Date(b.lastModified).getTime())
+  if (order)
+    files = files.reverse()
+  return [...folders, ...files]
+}
+
+export const pathSlice = (path) => {
+  path = path.replace(minioBrowserPrefix, '')
+  let prefix = ''
+  let bucket = ''
+  if (!path) return {
+      bucket,
+      prefix
+  }
+  let objectIndex = path.indexOf('/', 1)
+  if (objectIndex == -1) {
+    bucket = path.slice(1)
+    return {
+      bucket,
+      prefix
+    }
+  }
+  bucket = path.slice(1, objectIndex)
+  prefix = path.slice(objectIndex + 1)
+  return {
+    bucket,
+    prefix
+  }
+}
+
+export const pathJoin = (bucket, prefix) => {
+  if (!prefix)
+    prefix = ''
+  return minioBrowserPrefix + '/' + bucket + '/' + prefix
+}