feat(pkg/cmd): attach subcommand

pkg/cmd/attach.go

@@ -0,0 +1,55 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/davecgh/go-spew/spew"
+	"github.com/spf13/cobra"
+	"k8s.io/cli-runtime/pkg/genericclioptions"
+	// "k8s.io/kubernetes/pkg/kubectl/util/templates"
+)
+
+var (
+	attachShort = `` // Wrap with i18n.T()
+	attachLong  = attachShort + `
+
+...`
+
+	attachExamples = `
+  # ...
+  %[1]s trace attach -h
+
+  # ...
+  %[1]s trace (...) attach`
+)
+
+// AttachOptions ...
+type AttachOptions struct {
+	genericclioptions.IOStreams
+}
+
+// NewAttachOptions provides an instance of AttachOptions with default values.
+func NewAttachOptions(streams genericclioptions.IOStreams) *AttachOptions {
+	return &AttachOptions{
+		IOStreams: streams,
+	}
+}
+
+// NewAttachCommand provides the attach command wrapping AttachOptions.
+func NewAttachCommand(streams genericclioptions.IOStreams) *cobra.Command {
+	o := NewAttachOptions(streams)
+
+	cmd := &cobra.Command{
+		Use:                   "attach TRACE_ID",
+		DisableFlagsInUseLine: true,
+		Short:                 attachShort,
+		Long:                  attachLong,                             // Wrap with templates.LongDesc()
+		Example:               fmt.Sprintf(attachExamples, "kubectl"), // Wrap with templates.Examples()
+		Run: func(cmd *cobra.Command, args []string) {
+			fmt.Println("attach")
+			spew.Dump(o)
+		},
+	}
+
+	return cmd
+}