Make the geoip lookup output prettier

internal/log/handlers/cli/util.go

@@ -1,10 +1,22 @@
 package cli
 
 import (
+	"regexp"
 	"strings"
 	"unicode/utf8"
 )
 
-func RightPad(str string, length int) string {
-	return str + strings.Repeat(" ", length-utf8.RuneCountInString(str))
+// Finds the control character sequences (like colors)
+var ctrlFinder = regexp.MustCompile("\x1b\x5b[0-9]+\x6d")
+
+func escapeAwareRuneCountInString(s string) int {
+	n := utf8.RuneCountInString(s)
+	for _, sm := range ctrlFinder.FindAllString(s, -1) {
+		n -= utf8.RuneCountInString(sm)
+	}
+	return n
+}
+
+func RightPad(str string, length int) string {
+	return str + strings.Repeat(" ", length-escapeAwareRuneCountInString(str))
 }