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config.go
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/
config.go
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package conf
import (
"errors"
"io/ioutil"
"os"
"github.com/coreservice-io/utils/path_util"
"github.com/pelletier/go-toml"
)
/////////////////////////////
type Config struct {
Toml_config *TomlConfig
Abs_path string
}
var config *Config
func Get_config() *Config {
return config
}
func (config *Config) Read_config_file() (string, error) {
doc, err := ioutil.ReadFile(config.Abs_path)
if err != nil {
return "", err
}
return string(doc), nil
}
func (config *Config) Save_config() error {
result, err := toml.Marshal(config.Toml_config)
if err != nil {
return err
}
f, err := os.OpenFile(config.Abs_path, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0755)
if err != nil {
return err
}
defer f.Close()
err = f.Truncate(0)
if err != nil {
return err
}
_, err = f.Seek(0, 0)
if err != nil {
return err
}
_, err = f.Write(result)
if err != nil {
return err
}
return nil
}
func Init_config(config_path string) error {
if config != nil {
return nil
}
c_p, c_p_exist, _ := path_util.SmartPathExist(config_path)
if !c_p_exist {
return errors.New("no config file:" + config_path)
}
var cfg Config
cfg.Abs_path = c_p
cfg.Toml_config = &TomlConfig{}
config_str, err := cfg.Read_config_file()
if err != nil {
return err
}
err = toml.Unmarshal([]byte(config_str), cfg.Toml_config)
if err != nil {
return err
}
//fmt.Println("using config:", cfg.Abs_path)
config = &cfg
return nil
}