forked from go-ini/ini
/
helper.go
79 lines (71 loc) · 1.48 KB
/
helper.go
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package ini
import (
"os"
"path/filepath"
"reflect"
"strings"
"sync"
"github.com/henrylee2cn/goutil"
"github.com/henrylee2cn/goutil/errors"
)
// SyncINI quickly create your own configuration files.
// Struct tags reference `https://github.com/henrylee2cn/ini`
func SyncINI(structPtr interface{}, f func(onecUpdateFunc func() error) error, filename ...string) error {
t := reflect.TypeOf(structPtr)
if t.Kind() != reflect.Ptr {
return errors.New("SyncINI's param must be struct pointer type.")
}
t = t.Elem()
if t.Kind() != reflect.Struct {
return errors.New("SyncINI's param must be struct pointer type.")
}
var fname string
if len(filename) > 0 {
fname = filename[0]
} else {
fname = strings.TrimSuffix(t.Name(), "Config")
fname = strings.TrimSuffix(fname, "INI")
fname = goutil.SnakeString(fname) + ".ini"
}
var cfg *File
var err error
var existed bool
cfg, err = Load(fname)
if err != nil {
os.MkdirAll(filepath.Dir(fname), 0777)
cfg, err = LooseLoad(fname)
if err != nil {
return err
}
} else {
existed = true
}
err = cfg.MapTo(structPtr)
if err != nil {
return err
}
var once sync.Once
var onecUpdateFunc = func() error {
var err error
once.Do(func() {
err = cfg.ReflectFrom(structPtr)
if err != nil {
return
}
err = cfg.SaveTo(fname)
if err != nil {
return
}
})
return err
}
if f != nil {
if err = f(onecUpdateFunc); err != nil {
return err
}
}
if !existed {
return onecUpdateFunc()
}
return nil
}