server added

internal/config/.gitignore

@@ -0,0 +1,3 @@
+*~
+path.go
+user.go

internal/config/config.go

@@ -0,0 +1,97 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	//"errors"
+	"flag"
+
+	"github.com/go-yaml/yaml"
+)
+
+const (
+	defaultPort int = 9001
+)
+
+type ServiceConfig struct {
+	PortNum    int    `json:"port"    yaml:"port"`
+	WebDir     string `json:"webdir"  yaml:"webdir"`
+	AccessPath string `json:"accessLog"  yaml:"accessLog"`
+}
+
+type Config struct {
+	Service ServiceConfig `json:"service" yaml:"service"`
+	LogPath string        `json:"logfile"  yaml:"logfile"`
+	RunPath string        `json:"runfile"  yaml:"runfile"`
+	Daemon  bool          `json:"daemon"   yaml:"daemon"`
+	User    string        `yaml:"user"         json:"user"`
+	Group   string        `yaml:"group"        json:"group"`
+	Debug   bool          `yaml:"debug"        json:"debug"`
+}
+
+func NewConfig() *Config {
+	conf := &Config{
+		Service: ServiceConfig{
+			PortNum: defaultPort,
+			WebDir:  webdir,
+		},
+		LogPath: logPath,
+		RunPath: runPath,
+		User:    user,
+		Group:   group,
+	}
+	return conf
+}
+
+func (conf *Config) ReadFile() error {
+	var err error
+
+	confBytes, err := os.ReadFile(configPath)
+	if err != nil {
+		return err
+	}
+	err = yaml.Unmarshal(confBytes, conf)
+	if err != nil {
+		return err
+	}
+	return err
+}
+
+func (conf *Config) ReadEnv() error {
+	var err error
+	return err
+}
+
+func (conf *Config) ReadOpts() error {
+	var err error
+
+	exeName := filepath.Base(os.Args[0])
+
+	flag.IntVar(&conf.Service.PortNum, "port", conf.Service.PortNum, "listen port")
+	flag.BoolVar(&conf.Daemon, "daemon", conf.Daemon, "run as daemon")
+
+	help := func() {
+		fmt.Println("")
+		fmt.Printf("Usage: %s [option]\n", exeName)
+		fmt.Println("")
+		fmt.Println("Options:")
+		flag.PrintDefaults()
+		fmt.Println("")
+	}
+	flag.Usage = help
+	flag.Parse()
+
+	return err
+}
+
+func (conf *Config) Yaml() (string, error) {
+	var err error
+	var res string
+	yamlBytes, err := yaml.Marshal(conf)
+	if err != nil {
+		return res, err
+	}
+	res = string(yamlBytes)
+	return res, err
+}

internal/config/path.go.in

@@ -0,0 +1,9 @@
+package config
+
+
+const (
+    webdir     = "@srv_sharedir@"
+    configPath = "@srv_confdir@/@srv_name@d.yaml"
+    runPath    = "@srv_rundir@/@srv_name@.pid"
+    logPath    = "@srv_logdir@/common.log"
+)

internal/config/user.go.in

@@ -0,0 +1,6 @@
+package config
+
+const (
+    user  = "@srv_user@"
+    group = "@srv_group@"
+)