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add.go
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add.go
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package users
import (
"errors"
"fmt"
"github.com/spf13/cobra"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/kubernetes/pkg/kubectl/cmd/templates"
kcmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
"k8s.io/kubernetes/pkg/kubectl/genericclioptions"
"k8s.io/kubernetes/pkg/kubectl/genericclioptions/printers"
"k8s.io/kubernetes/pkg/kubectl/scheme"
userv1 "github.com/openshift/api/user/v1"
userv1typedclient "github.com/openshift/client-go/user/clientset/versioned/typed/user/v1"
)
const AddRecommendedName = "add-users"
var (
addLong = templates.LongDesc(`
Add users to a group.
This command will append unique users to the list of members for a group.`)
addExample = templates.Examples(`
# Add user1 and user2 to my-group
%[1]s my-group user1 user2`)
)
type AddUsersOptions struct {
GroupModificationOptions *GroupModificationOptions
}
func NewCmdAddUsers(name, fullName string, f kcmdutil.Factory, streams genericclioptions.IOStreams) *cobra.Command {
o := &AddUsersOptions{
GroupModificationOptions: NewGroupModificationOptions(streams),
}
cmd := &cobra.Command{
Use: name + " GROUP USER [USER ...]",
Short: "Add users to a group",
Long: addLong,
Example: fmt.Sprintf(addExample, fullName),
Run: func(cmd *cobra.Command, args []string) {
kcmdutil.CheckErr(o.Complete(f, cmd, args))
kcmdutil.CheckErr(o.Run())
},
}
o.GroupModificationOptions.PrintFlags.AddFlags(cmd)
kcmdutil.AddDryRunFlag(cmd)
return cmd
}
func (o *AddUsersOptions) Complete(f kcmdutil.Factory, cmd *cobra.Command, args []string) error {
return o.GroupModificationOptions.Complete(f, cmd, args)
}
func (o *AddUsersOptions) Run() error {
group, err := o.GroupModificationOptions.GroupClient.Groups().Get(o.GroupModificationOptions.Group, metav1.GetOptions{})
if err != nil {
return err
}
existingUsers := sets.NewString(group.Users...)
for _, user := range o.GroupModificationOptions.Users {
if existingUsers.Has(user) {
continue
}
group.Users = append(group.Users, user)
}
if !o.GroupModificationOptions.DryRun {
group, err = o.GroupModificationOptions.GroupClient.Groups().Update(group)
if err != nil {
return err
}
}
return o.GroupModificationOptions.PrintObj("added", group)
}
type GroupModificationOptions struct {
PrintFlags *genericclioptions.PrintFlags
ToPrinter func(string) (printers.ResourcePrinter, error)
GroupClient userv1typedclient.GroupsGetter
Group string
Users []string
DryRun bool
genericclioptions.IOStreams
}
func NewGroupModificationOptions(streams genericclioptions.IOStreams) *GroupModificationOptions {
return &GroupModificationOptions{
PrintFlags: genericclioptions.NewPrintFlags("").WithTypeSetter(scheme.Scheme),
IOStreams: streams,
}
}
func (o *GroupModificationOptions) Complete(f kcmdutil.Factory, cmd *cobra.Command, args []string) error {
if len(args) < 2 {
return errors.New("you must specify at least two arguments: GROUP USER [USER ...]")
}
o.Group = args[0]
o.Users = append(o.Users, args[1:]...)
clientConfig, err := f.ToRESTConfig()
if err != nil {
return err
}
o.GroupClient, err = userv1typedclient.NewForConfig(clientConfig)
if err != nil {
return err
}
o.DryRun = kcmdutil.GetDryRunFlag(cmd)
o.ToPrinter = func(operation string) (printers.ResourcePrinter, error) {
o.PrintFlags.NamePrintFlags.Operation = operation
if o.DryRun {
o.PrintFlags.Complete("%s (dry run)")
}
return o.PrintFlags.ToPrinter()
}
return nil
}
func (o *GroupModificationOptions) PrintObj(operation string, group *userv1.Group) error {
allTargets := fmt.Sprintf("%q", o.Users)
if len(o.Users) == 1 {
allTargets = fmt.Sprintf("%q", o.Users[0])
}
printer, err := o.ToPrinter(fmt.Sprintf("%s: %s", operation, allTargets))
if err != nil {
return err
}
return printer.PrintObj(group, o.Out)
}