DockerCLI/cli/command/task/print.go

94 lines
2.2 KiB
Go

package task
import (
"context"
"fmt"
"sort"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/cli/command/formatter"
"github.com/docker/cli/cli/command/idresolver"
"github.com/docker/cli/cli/config/configfile"
"github.com/docker/docker/api/types/swarm"
)
type tasksBySlot []swarm.Task
func (t tasksBySlot) Len() int {
return len(t)
}
func (t tasksBySlot) Swap(i, j int) {
t[i], t[j] = t[j], t[i]
}
func (t tasksBySlot) Less(i, j int) bool {
// Sort by slot.
if t[i].Slot != t[j].Slot {
return t[i].Slot < t[j].Slot
}
// If same slot, sort by most recent.
return t[j].Meta.CreatedAt.Before(t[i].CreatedAt)
}
// Print task information in a format.
// Besides this, command `docker node ps <node>`
// and `docker stack ps` will call this, too.
func Print(ctx context.Context, dockerCli command.Cli, tasks []swarm.Task, resolver *idresolver.IDResolver, trunc, quiet bool, format string) error {
sort.Stable(tasksBySlot(tasks))
names := map[string]string{}
nodes := map[string]string{}
tasksCtx := formatter.Context{
Output: dockerCli.Out(),
Format: NewTaskFormat(format, quiet),
Trunc: trunc,
}
prevName := ""
for _, task := range tasks {
serviceName, err := resolver.Resolve(ctx, swarm.Service{}, task.ServiceID)
if err != nil {
return err
}
nodeValue, err := resolver.Resolve(ctx, swarm.Node{}, task.NodeID)
if err != nil {
return err
}
var name string
if task.Slot != 0 {
name = fmt.Sprintf("%v.%v", serviceName, task.Slot)
} else {
name = fmt.Sprintf("%v.%v", serviceName, task.NodeID)
}
// Indent the name if necessary
indentedName := name
if name == prevName {
indentedName = fmt.Sprintf(" \\_ %s", indentedName)
}
prevName = name
names[task.ID] = name
if tasksCtx.Format.IsTable() {
names[task.ID] = indentedName
}
nodes[task.ID] = nodeValue
}
return FormatWrite(tasksCtx, tasks, names, nodes)
}
// DefaultFormat returns the default format from the config file, or table
// format if nothing is set in the config.
func DefaultFormat(configFile *configfile.ConfigFile, quiet bool) string {
if len(configFile.TasksFormat) > 0 && !quiet {
return configFile.TasksFormat
}
return formatter.TableFormatKey
}