DockerCLI/cli/command/completion/functions.go

113 lines
3.6 KiB
Go

package completion
import (
"os"
"github.com/docker/cli/cli/command/formatter"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/image"
"github.com/docker/docker/api/types/network"
"github.com/docker/docker/api/types/volume"
"github.com/docker/docker/client"
"github.com/spf13/cobra"
)
// ValidArgsFn a function to be used by cobra command as `ValidArgsFunction` to offer command line completion
type ValidArgsFn func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective)
// APIClientProvider provides a method to get an [client.APIClient], initializing
// it if needed.
//
// It's a smaller interface than [command.Cli], and used in situations where an
// APIClient is needed, but we want to postpone initializing the client until
// it's used.
type APIClientProvider interface {
Client() client.APIClient
}
// ImageNames offers completion for images present within the local store
func ImageNames(dockerCLI APIClientProvider) ValidArgsFn {
return func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
list, err := dockerCLI.Client().ImageList(cmd.Context(), image.ListOptions{})
if err != nil {
return nil, cobra.ShellCompDirectiveError
}
var names []string
for _, img := range list {
names = append(names, img.RepoTags...)
}
return names, cobra.ShellCompDirectiveNoFileComp
}
}
// ContainerNames offers completion for container names and IDs
// By default, only names are returned.
// Set DOCKER_COMPLETION_SHOW_CONTAINER_IDS=yes to also complete IDs.
func ContainerNames(dockerCLI APIClientProvider, all bool, filters ...func(types.Container) bool) ValidArgsFn {
return func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
list, err := dockerCLI.Client().ContainerList(cmd.Context(), container.ListOptions{
All: all,
})
if err != nil {
return nil, cobra.ShellCompDirectiveError
}
showContainerIDs := os.Getenv("DOCKER_COMPLETION_SHOW_CONTAINER_IDS") == "yes"
var names []string
for _, ctr := range list {
skip := false
for _, fn := range filters {
if !fn(ctr) {
skip = true
break
}
}
if skip {
continue
}
if showContainerIDs {
names = append(names, ctr.ID)
}
names = append(names, formatter.StripNamePrefix(ctr.Names)...)
}
return names, cobra.ShellCompDirectiveNoFileComp
}
}
// VolumeNames offers completion for volumes
func VolumeNames(dockerCLI APIClientProvider) ValidArgsFn {
return func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
list, err := dockerCLI.Client().VolumeList(cmd.Context(), volume.ListOptions{})
if err != nil {
return nil, cobra.ShellCompDirectiveError
}
var names []string
for _, vol := range list.Volumes {
names = append(names, vol.Name)
}
return names, cobra.ShellCompDirectiveNoFileComp
}
}
// NetworkNames offers completion for networks
func NetworkNames(dockerCLI APIClientProvider) ValidArgsFn {
return func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
list, err := dockerCLI.Client().NetworkList(cmd.Context(), network.ListOptions{})
if err != nil {
return nil, cobra.ShellCompDirectiveError
}
var names []string
for _, nw := range list {
names = append(names, nw.Name)
}
return names, cobra.ShellCompDirectiveNoFileComp
}
}
// NoComplete is used for commands where there's no relevant completion
func NoComplete(_ *cobra.Command, _ []string, _ string) ([]string, cobra.ShellCompDirective) {
return nil, cobra.ShellCompDirectiveNoFileComp
}