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|
package config
import (
"errors"
"fmt"
"net/url"
"os"
"path/filepath"
"reflect"
"gopkg.in/ini.v1"
)
type Serve struct {
Addr string `ini:"addr"`
}
type Database struct {
Name string `ini:"name"`
User string `ini:"user"`
Password string `ini:"password"`
Port string `ini:"port"`
}
type Instance struct {
Name string `ini:"name"`
ContactEmail string `ini:"contact-email"`
BaseURL string `ini:"base-url"`
}
type Config struct {
Serve Serve `ini:"serve"`
Database Database `ini:"database"`
Instance Instance `ini:"instance"`
}
var (
ErrBadConfig = errors.New("no database configuration found")
ErrBadConfigUrl = errors.New("bad url in config")
)
var systemConfigPath = "/etc/openstore/openstore.conf"
func DefaultPath() (string, error) {
dir, err := os.UserConfigDir()
if err != nil {
return "", err
}
return filepath.Join(dir, "openstore", "openstore.conf"), nil
}
func Load(filename string) (*Config, error) {
cfg, err := ini.LoadSources(ini.LoadOptions{
Loose: true,
KeyValueDelimiters: "=",
}, systemConfigPath, filename)
if err != nil {
return nil, err
}
config := new(Config)
err = cfg.MapTo(config)
if err != nil {
return nil, err
}
u, err := url.Parse(config.Instance.BaseURL)
if err != nil || u.Host == "" || u.Scheme == "" {
return nil, fmt.Errorf(
"%w: base-url must be an absolute url, got %s",
ErrBadConfigUrl,
config.Instance.BaseURL,
)
}
v := reflect.ValueOf(config).Elem()
t := v.Type()
for i := 0; i < v.NumField(); i++ {
key := t.Field(i).Name
value := v.Field(i).Interface()
if value == nil || value == "" {
return nil, fmt.Errorf(
"%w: config field %s empty",
ErrBadConfig, key,
)
}
}
return config, nil
}
|
