1db2da57c8
It's slightly more verbose, but helps finding the purpose of each of the environment variables. In tests, I kept the fixed strings. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
51 lines
1.4 KiB
Go
51 lines
1.4 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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}
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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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if err := store.ValidateContextName(name); err != nil && name != "default" {
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return err
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}
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if _, err := dockerCli.ContextStore().GetMetadata(name); err != nil && name != "default" {
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return err
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}
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configValue := name
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if configValue == "default" {
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configValue = ""
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}
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dockerConfig := dockerCli.ConfigFile()
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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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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 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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