/
backup.go
140 lines (106 loc) · 2.99 KB
/
backup.go
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package cmd
import (
"os/exec"
"github.com/maetthu/restic-wrap/lib/profile"
"github.com/spf13/cobra"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
func init() {
rootCmd.AddCommand(backupCmd)
}
type LogWriter struct {
Logger *zap.SugaredLogger
Level zapcore.Level
Fields []string
}
func (w LogWriter) Write(p []byte) (int, error) {
w.Logger.Log(w.Level, string(p))
return len(p), nil
}
var backupCmd = &cobra.Command{
Use: "backup -p <path-to-profile.yaml> [flags]",
Short: "Executes configured backup stages for all backends",
RunE: func(cmd *cobra.Command, args []string) error {
profilePath, err := cmd.Flags().GetString("profile")
if err != nil {
return err
}
prof, err := initConfig(profilePath)
if err != nil {
return err
}
zc := zap.NewProductionConfig()
zc.DisableStacktrace = true
logger, _ := zc.Build()
defer func() {
_ = logger.Sync()
}()
sugar := logger.Sugar()
logWriterInfo := LogWriter{
Logger: sugar,
Level: zapcore.InfoLevel,
Fields: []string{},
}
logWriterError := LogWriter{
Logger: sugar,
Level: zapcore.ErrorLevel,
Fields: []string{},
}
run := func(b *profile.Backend, args []string) error {
r := exec.Command("restic", args...)
r.Env = prof.BuildEnv(b)
r.Stdout = logWriterInfo
r.Stderr = logWriterError
err := r.Run()
return err
}
notify := func(b *profile.Backend, stage string, level string, msg string) error {
for _, command := range prof.Notify {
n := exec.Command(command, b.Name, stage, level, msg)
n.Env = prof.BuildEnv(b)
n.Stdout = logWriterInfo
n.Stderr = logWriterError
err := n.Run()
if err != nil {
return err
}
}
return nil
}
backends := prof.Backends
if name, err := cmd.Flags().GetString("backend"); err == nil && name != "" {
b, err := prof.Backend(name)
if err != nil {
return err
}
backends = []*profile.Backend{b}
}
for _, b := range backends {
sugar.Infow("Start backup", "backend", b.Name)
for _, s := range prof.Stages {
sugar.Infow("Start backup stage", "backend", b.Name, "stage", s.Command)
logWriterInfo.Fields = []string{"backend", b.Name, "stage", s.Command}
logWriterError.Fields = logWriterInfo.Fields
args := []string{s.Command}
args = append(args, s.Args...)
err := run(b, args)
if err != nil {
sugar.Errorw("Failed backup stage", "error", err.Error(), "backend", b.Name, "stage", s.Command)
err = notify(b, s.Command, "error", err.Error())
if err != nil {
sugar.Warnw("Failed invoking notification command", "error", err.Error(), "backend", b.Name, "stage", s.Command)
}
break
}
sugar.Infow("Finished backup stage", "backend", b.Name, "stage", s.Command)
err = notify(b, s.Command, "success", "")
if err != nil {
sugar.Warnw("Failed invoking notification command", "error", err.Error(), "backend", b.Name, "stage", s.Command)
}
}
sugar.Infow("Finished backup", "backend", b.Name)
}
return nil
},
}