pbconfig/save.go

86 lines
1.8 KiB
Go

package config
import (
"fmt"
"os"
"path/filepath"
"go.wit.com/log"
"google.golang.org/protobuf/encoding/prototext"
"google.golang.org/protobuf/proto"
)
var ErrProtoFilename error = log.Errorf("proto does not have Filename")
func ConfigSave(pb proto.Message) error {
// get pb.Filename if it is there in the .proto file
fullname, ok := GetFilename(pb)
if !ok {
return ErrProtoFilename
}
s := prototext.Format(pb)
dir, name := filepath.Split(fullname)
if name == "" {
return fmt.Errorf("filename was blank")
}
err := os.MkdirAll(dir, os.ModePerm)
if err != nil {
return err
}
log.Infof("ConfigSave() filename=%s %d\n", fullname, len(s))
return configWrite(fullname, []byte(s))
}
func ConfigSaveWithHeader(pb proto.Message, header string) error {
// get pb.Filename if it is there in the .proto file
fullname, ok := GetFilename(pb)
if !ok {
return ErrProtoFilename
}
s := prototext.Format(pb)
dir, name := filepath.Split(fullname)
if name == "" {
return fmt.Errorf("filename was blank")
}
err := os.MkdirAll(dir, os.ModePerm)
if err != nil {
return err
}
log.Infof("ConfigSave() filename=%s %d\n", fullname, len(s))
return configWrite(fullname, []byte(header+s))
}
func configWrite(fullname string, data []byte) error {
cfgfile, err := os.OpenFile(fullname, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0644)
defer cfgfile.Close()
if err != nil {
log.Warn("open config file :", err)
return err
}
_, err = cfgfile.Write(data)
return err
}
/*
func (e *Events) Save() {
var fullname string
base, _ := filepath.Split(argv.Config)
fullname = filepath.Join(base, "events.pb")
data, err := e.Marshal()
if err != nil {
log.Info("proto.Marshal() failed", err)
return
}
log.Info("proto.Marshal() worked len", len(data))
configWrite(fullname, data)
}
*/