uses conf file now

conf.yaml

@@ -0,0 +1,7 @@
+p: 54243
+r: 
+- echo:http://localhost:49982,echo2:http://localhost:49983
+crt: ./testdata/rproxy3server.crt
+key: ./testdata/rproxy3server.key
+user: bel
+pass: bel

config/config.go

@@ -8,7 +8,7 @@ import (
 func GetPort() string {
 	v := packable.NewString()
 	conf.Get(nsConf, flagPort, v)
-	return v.String()
+	return ":" + strings.TrimPrefix(v.String(), ":")
 }
 
 func GetRoutes() map[string]string {

config/new.go

@@ -6,6 +6,7 @@ import (
 	"local/rproxy3/storage"
 	"local/rproxy3/storage/packable"
 	"log"
+	"os"
 	"strings"
 
 	yaml "gopkg.in/yaml.v2"
@@ -28,9 +29,9 @@ type toBind struct {
 }
 
 type fileConf struct {
-	Port     string   `yaml:"port"`
-	Routes   []string `yaml:"routes"`
-	CertPath string   `yaml:"cert"`
+	Port     string   `yaml:"p"`
+	Routes   []string `yaml:"r"`
+	CertPath string   `yaml:"crt"`
 	KeyPath  string   `yaml:"key"`
 	Username string   `yaml:"user"`
 	Password string   `yaml:"pass"`
@@ -48,7 +49,12 @@ func Init() error {
 }
 
 func fromFile() error {
+	flag.CommandLine = flag.NewFlagSet(os.Args[0], flag.ContinueOnError)
+	defer func() {
+		flag.CommandLine = flag.NewFlagSet(os.Args[0], flag.ExitOnError)
+	}()
 	flag.String(flagConf, "/dev/null", "yaml config file path")
+	flag.Parse()
 	confFlag := flag.Lookup(flagConf)
 	if confFlag == nil || confFlag.Value.String() == "" {
 		return nil
@@ -85,6 +91,7 @@ func fromFile() error {
 func fromFlags() error {
 	binds := make([]toBind, 0)
 	binds = append(binds, addFlag(flagPort, "51555", "port to bind to"))
+	binds = append(binds, addFlag(flagConf, "", "configuration file path"))
 	binds = append(binds, addFlag(flagRoutes, "", "comma-separated routes to map, each as from:scheme://to.tld:port"))
 	binds = append(binds, addFlag(flagCert, "", "path to .crt"))
 	binds = append(binds, addFlag(flagKey, "", "path to .key"))
@@ -106,9 +113,18 @@ func fromFlags() error {
 }
 
 func addFlag(key, def, help string) toBind {
+	def = getFlagOrDefault(key, def)
 	v := flag.String(key, def, help)
 	return toBind{
 		flag:  key,
 		value: v,
 	}
 }
+
+func getFlagOrDefault(key, def string) string {
+	v := packable.NewString()
+	if err := conf.Get(nsConf, key, v); err != nil {
+		return def
+	}
+	return v.String()
+}