build: minor fixes and build optimization

cmd/utils/other.go

@@ -141,3 +141,47 @@ func ParseEnv(env string) string {
 
 	return envs
 }
+
+
+type Env struct {
+	Enabled bool
+	Key string
+	Value string
+}
+
+func ParseEnvToStruct(env string) []Env {
+	re := regexp.MustCompile(`^\s*(#?)\s*([A-Z0-9_]+)\s*=\s*(?:"([^"\n]+)"|([^"\n]+))$`)
+
+	var envs []Env
+
+	for _, line := range strings.Split(string(env), "\n") {
+		matches := re.FindStringSubmatch(line)
+		var env Env
+		if matches != nil {
+			env.Enabled = matches[1] == ""
+			env.Key = matches[2]   // the key
+			env.Value = matches[3] // quoted value
+			if env.Value == "" {
+				env.Value = matches[4] // unquoted value
+			}
+			envs = append(envs, env)
+		}
+	}
+
+	return envs
+}
+
+
+func ParseEnvStruct(envs []Env) string {
+	var env string
+
+	for _, en := range envs {
+		comment := ""
+		if !en.Enabled {
+			comment = "#"
+		}
+		env += fmt.Sprintf("%v%v=%v\n", comment, en.Key, en.Value)
+	}
+
+	return env
+}