6fd72c6333
For now, these are not exported and included in the cli/commands/contexts
package; a copy of this also lives in cmd/docker, but we need to find a
good place for these completions, as some of them bring in additional
dependencies.
Commands that accept multiple arguments provide completion, but removing
duplicates:
docker context inspect<TAB>
default desktop-linux (current) production tcd
docker context inspec default<TAB>
desktop-linux (current) production tcd
docker context inspect default tcd<TAB>
desktop-linux (current) production
For "context export", we provide completion for the first argument, after
which file-completion is provided:
# provides context names completion for the first argument
docker context export production<TAB>
default desktop-linux (current) production tcd
# then provides completion for filenames
docker context export desktop-linux<TAB>
build/ man/ TESTING.md
cli/ docker.Makefile go.mod
...
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
58 lines
1.8 KiB
Go
58 lines
1.8 KiB
Go
package context
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import (
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"fmt"
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"os"
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"github.com/docker/cli/cli/command"
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"github.com/docker/cli/cli/context/store"
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"github.com/docker/docker/client"
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"github.com/spf13/cobra"
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)
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func newUseCommand(dockerCLI command.Cli) *cobra.Command {
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cmd := &cobra.Command{
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Use: "use CONTEXT",
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Short: "Set the current docker context",
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Args: cobra.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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name := args[0]
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return RunUse(dockerCLI, name)
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},
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ValidArgsFunction: completeContextNames(dockerCLI, 1, false),
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}
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return cmd
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}
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// RunUse set the current Docker context
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func RunUse(dockerCLI command.Cli, name string) error {
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// configValue uses an empty string for "default"
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var configValue string
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if name != command.DefaultContextName {
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if err := store.ValidateContextName(name); err != nil {
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return err
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}
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if _, err := dockerCLI.ContextStore().GetMetadata(name); err != nil {
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return err
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}
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configValue = name
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}
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dockerConfig := dockerCLI.ConfigFile()
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// Avoid updating the config-file if nothing changed. This also prevents
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// creating the file and config-directory if the default is used and
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// no config-file existed yet.
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if dockerConfig.CurrentContext != configValue {
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dockerConfig.CurrentContext = configValue
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if err := dockerConfig.Save(); err != nil {
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return err
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}
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}
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_, _ = fmt.Fprintln(dockerCLI.Out(), name)
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_, _ = fmt.Fprintf(dockerCLI.Err(), "Current context is now %q\n", name)
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if name != command.DefaultContextName && os.Getenv(client.EnvOverrideHost) != "" {
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_, _ = fmt.Fprintf(dockerCLI.Err(), "Warning: %[1]s environment variable overrides the active context. "+
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"To use %[2]q, either set the global --context flag, or unset %[1]s environment variable.\n", client.EnvOverrideHost, name)
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}
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return nil
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}
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