Rename API calls in the storage backend

src/storage/interface.js

@@ -7,10 +7,11 @@
 // -------------------------------------------
 
 exports = module.exports = {
-    backup: backup,
-    restore: restore,
-    copyBackup: copyBackup,
-    removeBackups: removeBackups,
+    upload: upload,
+    download: download,
+    copy: copy,
+
+    removeMany: removeMany,
 
     backupDone: backupDone,
 
@@ -19,7 +20,7 @@ exports = module.exports = {
 
 var assert = require('assert');
 
-function backup(apiConfig, backupId, sourceDir, callback) {
+function upload(apiConfig, backupId, sourceDir, callback) {
     assert.strictEqual(typeof apiConfig, 'object');
     assert.strictEqual(typeof backupId, 'string');
     assert.strictEqual(typeof sourceDir, 'string');
@@ -30,7 +31,7 @@ function backup(apiConfig, backupId, sourceDir, callback) {
     callback(new Error('not implemented'));
 }
 
-function restore(apiConfig, backupId, destination, callback) {
+function download(apiConfig, backupId, destination, callback) {
     assert.strictEqual(typeof apiConfig, 'object');
     assert.strictEqual(typeof backupId, 'string');
     assert.strictEqual(typeof destination, 'string');
@@ -41,7 +42,7 @@ function restore(apiConfig, backupId, destination, callback) {
     callback(new Error('not implemented'));
 }
 
-function copyBackup(apiConfig, oldBackupId, newBackupId, callback) {
+function copy(apiConfig, oldBackupId, newBackupId, callback) {
     assert.strictEqual(typeof apiConfig, 'object');
     assert.strictEqual(typeof oldBackupId, 'string');
     assert.strictEqual(typeof newBackupId, 'string');
@@ -52,7 +53,7 @@ function copyBackup(apiConfig, oldBackupId, newBackupId, callback) {
     callback(new Error('not implemented'));
 }
 
-function removeBackups(apiConfig, backupIds, callback) {
+function removeMany(apiConfig, backupIds, callback) {
     assert.strictEqual(typeof apiConfig, 'object');
     assert(Array.isArray(backupIds));
     assert.strictEqual(typeof callback, 'function');