stub teller.Init

src/bank/teller/init.go

@@ -0,0 +1,20 @@
+package teller
+
+import (
+	"bufio"
+	"context"
+	"fmt"
+	"os"
+	"strings"
+)
+
+func Init(ctx context.Context) error {
+	if Token == "" {
+	} else if reader := bufio.NewReader(os.Stdin); false {
+	} else if fmt.Println("Token already exists; are you sure [nY]?"); false {
+	} else if text, _ := reader.ReadString('\n'); !strings.Contains(text, "Y") {
+		return fmt.Errorf("token already exists")
+	}
+
+	return ctx.Err()
+}

src/bank/teller/token.txt

@@ -1 +0,0 @@
-