Fix partial/full filter issue in `service tasks --filter`

This fix tries to address the issue related to 24108 and 24790, and
also the case from 24620#issuecomment-233715656

The reason for the failure case in the above mentioned issues is that
currently Task names are actually indexed by Service Name
(`e.ServiceAnnotations.Name`)

To fix it, a pull request in swarmkit (swarmkit/pull/1193) has been
opened separately.

This fix adds the integration tests for the above mentioned issues.
Swarmkit revendoring is needed to completely fix the issues.

This fix fixes 24108.
This fix fixes 24790.
This fix is related to 24620.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

command/task/print.go

@@ -16,7 +16,7 @@ import (
 )
 
 const (
-	psTaskItemFmt = "%s\t%s\t%s\t%s\t%s\t%s %s ago\t%s\n"
+	psTaskItemFmt = "%s\t%s\t%s\t%s\t%s %s ago\t%s\n"
 	maxErrLength  = 30
 )
 
@@ -48,11 +48,12 @@ func Print(dockerCli *command.DockerCli, ctx context.Context, tasks []swarm.Task
 
 	// Ignore flushing errors
 	defer writer.Flush()
-	fmt.Fprintln(writer, strings.Join([]string{"ID", "NAME", "IMAGE", "NODE", "DESIRED STATE", "CURRENT STATE", "ERROR"}, "\t"))
+	fmt.Fprintln(writer, strings.Join([]string{"NAME", "IMAGE", "NODE", "DESIRED STATE", "CURRENT STATE", "ERROR"}, "\t"))
 
-	prevName := ""
+	prevServiceName := ""
+	prevSlot := 0
 	for _, task := range tasks {
-		serviceValue, err := resolver.Resolve(ctx, swarm.Service{}, task.ServiceID)
+		serviceName, err := resolver.Resolve(ctx, swarm.Service{}, task.ServiceID)
 		if err != nil {
 			return err
 		}
@@ -61,17 +62,27 @@ func Print(dockerCli *command.DockerCli, ctx context.Context, tasks []swarm.Task
 			return err
 		}
 
-		name := serviceValue
+		name := task.Annotations.Name
-		if task.Slot > 0 {
+		// TODO: This is the fallback <ServiceName>.<Slot>.<taskID> in case task name is not present in
-			name = fmt.Sprintf("%s.%d", name, task.Slot)
+		// Annotations (upgraded from 1.12).
+		// We may be able to remove the following in the future.
+		if name == "" {
+			if task.Slot != 0 {
+				name = fmt.Sprintf("%v.%v.%v", serviceName, task.Slot, task.ID)
+			} else {
+				name = fmt.Sprintf("%v.%v.%v", serviceName, task.NodeID, task.ID)
+			}
 		}
 
 		// Indent the name if necessary
 		indentedName := name
-		if prevName == name {
+		// Since the new format of the task name is <ServiceName>.<Slot>.<taskID>, we should only compare
+		// <ServiceName> and <Slot> here.
+		if prevServiceName == serviceName && prevSlot == task.Slot {
 			indentedName = fmt.Sprintf(" \\_ %s", indentedName)
 		}
-		prevName = name
+		prevServiceName = serviceName
+		prevSlot = task.Slot
 
 		// Trim and quote the error message.
 		taskErr := task.Status.Err
@@ -85,7 +96,6 @@ func Print(dockerCli *command.DockerCli, ctx context.Context, tasks []swarm.Task
 		fmt.Fprintf(
 			writer,
 			psTaskItemFmt,
-			task.ID,
 			indentedName,
 			task.Spec.ContainerSpec.Image,
 			nodeValue,