Add self command (and whoami alias)

CHANGELOG

@@ -4,6 +4,7 @@ Changelog
 ### To be Released
 
 * [env-set] Advise to restart after setting the environment #373
+* [self] Add `self` (and `whoami` alias) #350
 * Better error message if 401 Unauthorized #352
 
 ### 1.9.0

cmd/commands.go

@@ -95,6 +95,8 @@ var (
 		LoginCommand,
 		LogoutCommand,
 		SignUpCommand,
+		selfCommand,
+		whoamiCommand, // `self` alias
 
 		// Version
 		UpdateCommand,

cmd/self.go

@@ -0,0 +1,32 @@
+package cmd
+
+import (
+	"github.com/Scalingo/cli/config"
+	"github.com/Scalingo/cli/io"
+	"github.com/urfave/cli"
+)
+
+var (
+	selfCommand = cli.Command{
+		Name:        "self",
+		Category:    "Global",
+		Usage:       "Get the logged in profile",
+		Description: "Returns the logged in profile and print its username. Comes in handy when owning multiple accounts.",
+		Before:      AuthenticateHook,
+		Action: func(c *cli.Context) {
+			if config.AuthenticatedUser != nil {
+				io.Statusf("You are logged in as %s (%s)\n", config.AuthenticatedUser.Username, config.AuthenticatedUser.Email)
+				return
+			}
+			io.Status("Currently unauthenticated")
+		},
+	}
+	whoamiCommand = cli.Command{
+		Name:        "whoami",
+		Category:    selfCommand.Category,
+		Usage:       selfCommand.Usage,
+		Description: selfCommand.Description,
+		Before:      selfCommand.Before,
+		Action:      selfCommand.Action,
+	}
+)