refactor(code): Cleaned-up the code base

lib/config/parse.go

@@ -0,0 +1,47 @@
+package config
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+func parseBool(value string) (bool, error) {
+	switch strings.ToLower(strings.TrimSpace(value)) {
+	case "1", "t", "true", "y", "yes", "on":
+		return true, nil
+	case "0", "f", "false", "n", "no", "off":
+		return false, nil
+	default:
+		return false, fmt.Errorf("must be a boolean")
+	}
+}
+
+func parseInt64(value string, min int64) (int64, error) {
+	parsed, err := strconv.ParseInt(strings.TrimSpace(value), 10, 64)
+	if err != nil {
+		return 0, fmt.Errorf("must be an integer")
+	}
+	if parsed < min {
+		return 0, fmt.Errorf("must be at least %d", min)
+	}
+	return parsed, nil
+}
+
+func parseInt(value string, min int) (int, error) {
+	parsed64, err := parseInt64(value, int64(min))
+	if err != nil {
+		return 0, err
+	}
+	if parsed64 > int64(^uint(0)>>1) {
+		return 0, fmt.Errorf("is too large")
+	}
+	return int(parsed64), nil
+}
+
+func formatBool(value bool) string {
+	if value {
+		return "true"
+	}
+	return "false"
+}