73 lines
1.6 KiB
Go
73 lines
1.6 KiB
Go
package zoopb
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// functions to import and export the protobuf
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// data to and from config files
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import (
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"errors"
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"os"
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"path/filepath"
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"go.wit.com/log"
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"google.golang.org/protobuf/proto"
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)
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// writes out the cluster information it seperate files
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// to make it humanly possible to hand edit things as needed
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func (m *Machines) ConfigSave() error {
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data, err := m.Marshal()
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if err != nil {
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log.Info("proto.Marshal() failed len", len(data), err)
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return err
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}
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log.Info("proto.Marshal() worked len", len(data))
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configWrite(data)
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return nil
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}
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func ConfigSaveRaw(data []byte) error {
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configWrite(data)
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return nil
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}
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func (m *Machines) ConfigLoad() error {
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if m == nil {
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return errors.New("It's not safe to run ConfigLoad() on a nil ?")
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}
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if data, err := loadFile("zookeeper.pb"); err == nil {
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if err = proto.Unmarshal(data, m); err != nil {
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log.Warn("broken zookeeper.pb config file")
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return err
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}
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} else {
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return err
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}
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return nil
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}
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func loadFile(filename string) ([]byte, error) {
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homeDir, err := os.UserHomeDir()
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p := filepath.Join(homeDir, ".config/zookeeper")
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fullname := filepath.Join(p, filename)
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data, err := os.ReadFile(fullname)
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if err != nil {
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// log.Info("open config file :", err)
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return nil, err
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}
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return data, nil
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}
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func configWrite(data []byte) error {
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homeDir, err := os.UserHomeDir()
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p := filepath.Join(homeDir, ".config/zookeeper")
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fname := filepath.Join(p, "zookeeper.pb")
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cfgfile, err := os.OpenFile(fname, os.O_RDWR|os.O_CREATE, 0666)
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defer cfgfile.Close()
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if err != nil {
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log.Warn("open config file :", err)
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return err
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}
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cfgfile.Write(data)
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return nil
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}
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