Merge pull request #12128 from tomasz-grobelny/fix_file_move

Fix file move operation for large number of files

apps/files/js/filelist.js

 				});
 			}
 
-			this.move(_.pluck(files, 'name'), targetPath);
+			var movePromise = this.move(_.pluck(files, 'name'), targetPath);
 
 			// re-enable td elements to be droppable
 			// sometimes the filename drop handler is still called after re-enable,
 			setTimeout(function() {
 				self.$el.find('td.filename.ui-droppable').droppable('enable');
 			}, 10);
+
+			return movePromise;
 		},
 
 		/**
 			if (!_.isArray(fileNames)) {
 				fileNames = [fileNames];
 			}
-			_.each(fileNames, function(fileName) {
+
+			function Semaphore(max) {
+				var counter = 0;
+				var waiting = [];
+
+				this.acquire = function() {
+					if(counter < max) {
+						counter++;
+						return new Promise(function(resolve) { resolve(); });
+					} else {
+						return new Promise(function(resolve) { waiting.push(resolve); });
+					}
+				};
+
+				this.release = function() {
+					counter--;
+					if (waiting.length > 0 && counter < max) {
+						counter++;
+						var promise = waiting.shift();
+						promise();
+					}
+				};
+			}
+
+			var moveFileFunction = function(fileName) {
 				var $tr = self.findFileEl(fileName);
 				self.showFileBusyState($tr, true);
 				if (targetPath.charAt(targetPath.length - 1) !== '/') {
 					// not overwrite it
 					targetPath = targetPath + '/';
 				}
-				self.filesClient.move(dir + fileName, targetPath + fileName)
+				return self.filesClient.move(dir + fileName, targetPath + fileName)
 					.done(function() {
 						// if still viewing the same directory
 						if (OC.joinPaths(self.getCurrentDirectory(), '/') === dir) {
 					.always(function() {
 						self.showFileBusyState($tr, false);
 					});
+			};
+
+			var mcSemaphore = new Semaphore(10);
+			var counter = 0;
+			var promises = _.map(fileNames, function(arg) {
+				return mcSemaphore.acquire().then(function(){
+					moveFileFunction(arg).then(function(){
+						mcSemaphore.release();
+						counter++;
+					});
+				});
+			});
+
+			return Promise.all(promises).then(function(){
 				if (callback) {
 					callback();
 				}
 			});
-
 		},
 
 		/**

apps/files/tests/js/filelistSpec.js

 			moveStub.restore();
 		});
 
-		it('Moves single file to target folder', function() {
-			fileList.move('One.txt', '/somedir');
+		it('Moves single file to target folder', function(done) {
+			return fileList.move('One.txt', '/somedir').then(function(){
 
-			expect(moveStub.calledOnce).toEqual(true);
-			expect(moveStub.getCall(0).args[0]).toEqual('/subdir/One.txt');
-			expect(moveStub.getCall(0).args[1]).toEqual('/somedir/One.txt');
+				expect(moveStub.calledOnce).toEqual(true);
+				expect(moveStub.getCall(0).args[0]).toEqual('/subdir/One.txt');
+				expect(moveStub.getCall(0).args[1]).toEqual('/somedir/One.txt');
 
-			deferredMove.resolve(201);
+				deferredMove.resolve(201);
 
-			expect(fileList.findFileEl('One.txt').length).toEqual(0);
+				expect(fileList.findFileEl('One.txt').length).toEqual(0);
 
-			// folder size has increased
-			expect(fileList.findFileEl('somedir').data('size')).toEqual(262);
-			expect(fileList.findFileEl('somedir').find('.filesize').text()).toEqual('262 B');
+				// folder size has increased
+				expect(fileList.findFileEl('somedir').data('size')).toEqual(262);
+				expect(fileList.findFileEl('somedir').find('.filesize').text()).toEqual('262 B');
 
-			expect(notificationStub.notCalled).toEqual(true);
+				expect(notificationStub.notCalled).toEqual(true);
+				done();
+			});
 		});
-		it('Moves list of files to target folder', function() {
+		it('Moves list of files to target folder', function(done) {
 			var deferredMove1 = $.Deferred();
 			var deferredMove2 = $.Deferred();
 			moveStub.onCall(0).returns(deferredMove1.promise());
 			moveStub.onCall(1).returns(deferredMove2.promise());
 
-			fileList.move(['One.txt', 'Two.jpg'], '/somedir');
+			return fileList.move(['One.txt', 'Two.jpg'], '/somedir').then(function(){
 
-			expect(moveStub.calledTwice).toEqual(true);
-			expect(moveStub.getCall(0).args[0]).toEqual('/subdir/One.txt');
-			expect(moveStub.getCall(0).args[1]).toEqual('/somedir/One.txt');
-			expect(moveStub.getCall(1).args[0]).toEqual('/subdir/Two.jpg');
-			expect(moveStub.getCall(1).args[1]).toEqual('/somedir/Two.jpg');
+				expect(moveStub.calledTwice).toEqual(true);
+				expect(moveStub.getCall(0).args[0]).toEqual('/subdir/One.txt');
+				expect(moveStub.getCall(0).args[1]).toEqual('/somedir/One.txt');
+				expect(moveStub.getCall(1).args[0]).toEqual('/subdir/Two.jpg');
+				expect(moveStub.getCall(1).args[1]).toEqual('/somedir/Two.jpg');
 
-			deferredMove1.resolve(201);
+				deferredMove1.resolve(201);
 
-			expect(fileList.findFileEl('One.txt').length).toEqual(0);
+				expect(fileList.findFileEl('One.txt').length).toEqual(0);
 
-			// folder size has increased during move
-			expect(fileList.findFileEl('somedir').data('size')).toEqual(262);
-			expect(fileList.findFileEl('somedir').find('.filesize').text()).toEqual('262 B');
+				// folder size has increased during move
+				expect(fileList.findFileEl('somedir').data('size')).toEqual(262);
+				expect(fileList.findFileEl('somedir').find('.filesize').text()).toEqual('262 B');
 
-			deferredMove2.resolve(201);
+				deferredMove2.resolve(201);
 
-			expect(fileList.findFileEl('Two.jpg').length).toEqual(0);
+				expect(fileList.findFileEl('Two.jpg').length).toEqual(0);
 
-			// folder size has increased
-			expect(fileList.findFileEl('somedir').data('size')).toEqual(12311);
-			expect(fileList.findFileEl('somedir').find('.filesize').text()).toEqual('12 KB');
+				// folder size has increased
+				expect(fileList.findFileEl('somedir').data('size')).toEqual(12311);
+				expect(fileList.findFileEl('somedir').find('.filesize').text()).toEqual('12 KB');
 
-			expect(notificationStub.notCalled).toEqual(true);
+				expect(notificationStub.notCalled).toEqual(true);
+				done();
+			});
 		});
-		it('Shows notification if a file could not be moved', function() {
-			fileList.move('One.txt', '/somedir');
+		it('Shows notification if a file could not be moved', function(done) {
+			return fileList.move('One.txt', '/somedir').then(function(){
 
-			expect(moveStub.calledOnce).toEqual(true);
+				expect(moveStub.calledOnce).toEqual(true);
 
-			deferredMove.reject(409);
+				deferredMove.reject(409);
 
-			expect(fileList.findFileEl('One.txt').length).toEqual(1);
+				expect(fileList.findFileEl('One.txt').length).toEqual(1);
 
-			expect(notificationStub.calledOnce).toEqual(true);
-			expect(notificationStub.getCall(0).args[0]).toEqual('Could not move "One.txt"');
+				expect(notificationStub.calledOnce).toEqual(true);
+				expect(notificationStub.getCall(0).args[0]).toEqual('Could not move "One.txt"');
+				done();
+			});
 		});
 		it('Restores thumbnail if a file could not be moved', function() {
-			fileList.move('One.txt', '/somedir');
+			return fileList.move('One.txt', '/somedir').then(function(){
 
-			expect(fileList.findFileEl('One.txt').find('.thumbnail').parent().attr('class'))
-				.toContain('icon-loading-small');
+				expect(fileList.findFileEl('One.txt').find('.thumbnail').parent().attr('class'))
+					.toContain('icon-loading-small');
 
-			expect(moveStub.calledOnce).toEqual(true);
+				expect(moveStub.calledOnce).toEqual(true);
 
-			deferredMove.reject(409);
+				deferredMove.reject(409);
 
-			expect(fileList.findFileEl('One.txt').length).toEqual(1);
+				expect(fileList.findFileEl('One.txt').length).toEqual(1);
 
-			expect(notificationStub.calledOnce).toEqual(true);
-			expect(notificationStub.getCall(0).args[0]).toEqual('Could not move "One.txt"');
+				expect(notificationStub.calledOnce).toEqual(true);
+				expect(notificationStub.getCall(0).args[0]).toEqual('Could not move "One.txt"');
 
-			expect(OC.TestUtil.getImageUrl(fileList.findFileEl('One.txt').find('.thumbnail')))
-				.toEqual(OC.imagePath('core', 'filetypes/text.svg'));
+				expect(OC.TestUtil.getImageUrl(fileList.findFileEl('One.txt').find('.thumbnail')))
+					.toEqual(OC.imagePath('core', 'filetypes/text.svg'));
+			});
 		});
 	});
 
 			expect(changeDirStub.getCall(0).args[0]).toEqual('/subdir/two/three with space');
 			changeDirStub.restore();
 		});
-		it('dropping files on breadcrumb calls move operation', function() {
+		it('dropping files on breadcrumb calls move operation', function(done) {
 			var testDir = '/subdir/two/three with space/four/five';
 			var moveStub = sinon.stub(filesClient, 'move').returns($.Deferred().promise());
 			fileList.changeDirectory(testDir);
 				$('<tr data-file="Two.jpg" data-dir="' + testDir + '"></tr>')
 			]);
 			// simulate drop event
-			fileList._onDropOnBreadCrumb(new $.Event('drop', {target: $crumb}), ui);
+			return fileList._onDropOnBreadCrumb(new $.Event('drop', {target: $crumb}), ui).then(function(){
 
-			expect(moveStub.callCount).toEqual(2);
-			expect(moveStub.getCall(0).args[0]).toEqual(testDir + '/One.txt');
-			expect(moveStub.getCall(0).args[1]).toEqual('/subdir/two/three with space/One.txt');
-			expect(moveStub.getCall(1).args[0]).toEqual(testDir + '/Two.jpg');
-			expect(moveStub.getCall(1).args[1]).toEqual('/subdir/two/three with space/Two.jpg');
-			moveStub.restore();
+				expect(moveStub.callCount).toEqual(2);
+				expect(moveStub.getCall(0).args[0]).toEqual(testDir + '/One.txt');
+				expect(moveStub.getCall(0).args[1]).toEqual('/subdir/two/three with space/One.txt');
+				expect(moveStub.getCall(1).args[0]).toEqual(testDir + '/Two.jpg');
+				expect(moveStub.getCall(1).args[1]).toEqual('/subdir/two/three with space/Two.jpg');
+				moveStub.restore();
+				done();
+			});
 		});
 		it('dropping files on same dir breadcrumb does nothing', function() {
 			var testDir = '/subdir/two/three with space/four/five';