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package commands
import (
"os"
"github.com/docker/buildx/store/storeutil"
"github.com/docker/buildx/util/cobrautil/completion"
"github.com/docker/buildx/util/dockerutil"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
type useOptions struct {
isGlobal bool
isDefault bool
builder string
}
func runUse(dockerCli command.Cli, in useOptions) error {
txn, release, err := storeutil.GetStore(dockerCli)
if err != nil {
return err
}
defer release()
if _, err := txn.NodeGroupByName(in.builder); err != nil {
if os.IsNotExist(errors.Cause(err)) {
if in.builder == "default" && in.builder != dockerCli.CurrentContext() {
return errors.Errorf("run `docker context use default` to switch to default context")
}
if in.builder == "default" || in.builder == dockerCli.CurrentContext() {
ep, err := dockerutil.GetCurrentEndpoint(dockerCli)
if err != nil {
return err
}
return txn.SetCurrent(ep, "", false, false)
}
list, err := dockerCli.ContextStore().List()
if err != nil {
return err
}
for _, l := range list {
if l.Name == in.builder {
return errors.Errorf("run `docker context use %s` to switch to context %s", in.builder, in.builder)
}
}
}
return errors.Wrapf(err, "failed to find instance %q", in.builder)
}
ep, err := dockerutil.GetCurrentEndpoint(dockerCli)
if err != nil {
return err
}
return txn.SetCurrent(ep, in.builder, in.isGlobal, in.isDefault)
}
func useCmd(dockerCli command.Cli, rootOpts *rootOptions) *cobra.Command {
var options useOptions
cmd := &cobra.Command{
Use: "use [OPTIONS] NAME",
Short: "Set the current builder instance",
Args: cli.RequiresMaxArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
options.builder = rootOpts.builder
if len(args) > 0 {
options.builder = args[0]
}
return runUse(dockerCli, options)
},
ValidArgsFunction: completion.BuilderNames(dockerCli),
}
flags := cmd.Flags()
flags.BoolVar(&options.isGlobal, "global", false, "Builder persists context changes")
flags.BoolVar(&options.isDefault, "default", false, "Set builder as default for current context")
return cmd
}
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