Add auth command

commands/auth.go

@@ -0,0 +1,28 @@
+package commands
+
+import (
+	"flag"
+	"fmt"
+
+	"github.com/asciinema/asciinema-cli/cli"
+	"github.com/asciinema/asciinema-cli/util"
+)
+
+func Auth(flags *flag.FlagSet, cfg *util.Config) cli.Command {
+	return &AuthCommand{
+		apiUrl:   cfg.Api.Url,
+		apiToken: cfg.Api.Token,
+	}
+}
+
+type AuthCommand struct {
+	apiUrl   string
+	apiToken string
+}
+
+func (c *AuthCommand) Execute(args []string) error {
+	fmt.Println("Open the following URL in your browser to register your API token and assign any recorded asciicasts to your profile:")
+	fmt.Printf("%v/connect/%v\n", c.apiUrl, c.apiToken)
+
+	return nil
+}