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Add builder as a global flag.

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This allows all subcommands to use this flag.
Additionally reads the default value for the flag from the
`BUILDX_BUILDER` env var.

Precedence is:

CLI ARG > flag > env var > config file

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
This commit is contained in:
Brian Goff
2020-04-27 14:37:17 -07:00
parent 213d3af3b0
commit b2ec1d331c
10 changed files with 78 additions and 55 deletions
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27
commands/use.go
View File

@ -12,21 +12,22 @@ import (
type useOptions struct {
isGlobal bool
isDefault bool
builder string
}
func runUse(dockerCli command.Cli, in useOptions, name string) error {
func runUse(dockerCli command.Cli, in useOptions) error {
txn, release, err := getStore(dockerCli)
if err != nil {
return err
}
defer release()
if _, err := txn.NodeGroupByName(name); err != nil {
if _, err := txn.NodeGroupByName(in.builder); err != nil {
if os.IsNotExist(errors.Cause(err)) {
if name == "default" && name != dockerCli.CurrentContext() {
if in.builder == "default" && in.builder != dockerCli.CurrentContext() {
return errors.Errorf("run `docker context use default` to switch to default context")
}
if name == "default" || name == dockerCli.CurrentContext() {
if in.builder == "default" || in.builder == dockerCli.CurrentContext() {
ep, err := getCurrentEndpoint(dockerCli)
if err != nil {
return err
@ -41,35 +42,39 @@ func runUse(dockerCli command.Cli, in useOptions, name string) error {
return err
}
for _, l := range list {
if l.Name == name {
return errors.Errorf("run `docker context use %s` to switch to context %s", name, name)
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", name)
return errors.Wrapf(err, "failed to find instance %q", in.builder)
}
ep, err := getCurrentEndpoint(dockerCli)
if err != nil {
return err
}
if err := txn.SetCurrent(ep, name, in.isGlobal, in.isDefault); err != nil {
if err := txn.SetCurrent(ep, in.builder, in.isGlobal, in.isDefault); err != nil {
return err
}
return nil
}
func useCmd(dockerCli command.Cli) *cobra.Command {
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.ExactArgs(1),
Args: cli.RequiresMaxArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
return runUse(dockerCli, options, args[0])
options.builder = rootOpts.builder
if len(args) > 0 {
options.builder = args[0]
}
return runUse(dockerCli, options)
},
}