func Keygen(keyPath string) error {
var newKey bool
key, err := secretkey.ReadFile(keyPath)
if err != nil {
if os.IsNotExist(err) {
newKey = true
key = secretkey.New()
} else {
return fmt.Errorf("secretkey.ReadFile: %s", err)
}
}
if newKey {
fmt.Fprintf(os.Stderr, "\nCreating new key file: %s\n", keyPath)
} else {
fmt.Fprintf(os.Stderr, "\nUpdating passphrase for key file: %s\n", keyPath)
}
if err = secretkey.WriteFile(key, keyPath); err != nil {
return fmt.Errorf("secretkey.WriteFile: %s", err)
}
if newKey {
fmt.Fprintf(os.Stderr, "\nKey file created successfully: %s\n", keyPath)
} else {
fmt.Fprintf(os.Stderr, "\nPassphrase updated successfully: %s\n", keyPath)
}
fmt.Fprintf(os.Stderr, "You should now write down your key file and store it somewhere safe!\n")
return nil
}
func main() {
c, err := parseArgs(os.Args[1:])
if err != nil {
log.Fatalf("usage error: %s", err)
}
if c.help {
fmt.Printf(shortUsage, os.Args[0])
fmt.Print(longUsage)
return
}
if c.version {
fmt.Println(version)
return
}
if c.keygen {
if err = Keygen(c.keyPath); err != nil {
log.Fatalf("keygen error: %s", err)
}
return
}
bb, err := openBucket(c.bucketPath)
if err != nil {
log.Fatalf("error opening bucket: %s", err)
}
key, err := secretkey.ReadFile(c.keyPath)
if err != nil {
log.Fatalf("error reading key file: %s", err)
}
b := upgradeBucket(bb, key)
if len(c.deletes) > 0 {
err := deleteBuckets(b, c.deletes)
if err != nil {
log.Fatalf("error deleting backups: %s", err)
}
return
}
if len(c.commands) == 0 {
_, children, err := b.List()
if err != nil {
log.Fatalf("error listing bucket: %s", err)
}
for _, child := range children {
fmt.Println(child)
}
return
}
var wg sync.WaitGroup
wg.Add(len(c.commands))
for _, cmd := range c.commands {
go func(cmd Command) {
defer wg.Done()
start := time.Now()
n, err := cmd.Run(b)
if err != nil {
plog.Printf("command %q failed: %s", cmd.String(), err.Error())
return
}
elapsed := time.Now().Sub(start)
rounded := time.Duration(int64(elapsed/time.Millisecond)) * time.Millisecond
mb := float64(n) / 1e6
mbs := fmt.Sprintf("%.2f MB/s", mb/elapsed.Seconds())
plog.Printf("%s success: transferred %.2f MB in %s (%s)", cmd.String(), mb, rounded.String(), mbs)
}(cmd)
}
wg.Wait()
}