Trim leading invalid chars from names (#151)

Signed-off-by: Reinhard Nägele <[email protected]>

pkg/util/util.go

@@ -219,13 +219,13 @@ func PrintDelimiterLine(delimiterChar string) {
 
 func SanitizeName(s string, maxLength int) string {
 	reg := regexp.MustCompile("^[^a-zA-Z0-9]+")
-	processed := reg.ReplaceAllString(s, "")
 
-	excess := len(processed) - maxLength
+	excess := len(s) - maxLength
+	result := s
 	if excess > 0 {
-		return processed[excess:]
+		result = s[excess:]
 	}
-	return processed
+	return reg.ReplaceAllString(result, "")
 }
 
 func GetRandomPort() (int, error) {

pkg/util/util_test.go

@@ -79,7 +79,7 @@ func TestSanitizeName(t *testing.T) {
 		{"way-longer-than-max-length", 10, "max-length"},
 		{"one-shorter-than-max-length", len("one-shorter-than-max-length") + 1, "one-shorter-than-max-length"},
 		{"oone-longer-than-max-length", len("oone-longer-than-max-length") - 1, "one-longer-than-max-length"},
-		{"-starts-with-invalid-char", 63, "starts-with-invalid-char"},
+		{"foo-would-start-with-hyphen-after-trimming", len("foo-would-start-with-hyphen-after-trimming") - 3, "would-start-with-hyphen-after-trimming"},
 	}
 
 	for index, testData := range testDataSlice {