func NewSplitStrategy(logger logutil.Logger, argsStr string) (*SplitStrategy, error) {
var args []string
if argsStr != "" {
args = strings.Split(argsStr, " ")
}
flagSet := flag.NewFlagSet("strategy", flag.ContinueOnError)
flagSet.SetOutput(logutil.NewLoggerWriter(logger))
flagSet.Usage = func() {
logger.Printf("Strategy flag has the following options:\n")
flagSet.PrintDefaults()
}
populateBlpCheckpoint := flagSet.Bool("populate_blp_checkpoint", false, "populates the blp checkpoint table")
dontStartBinlogPlayer := flagSet.Bool("dont_start_binlog_player", false, "do not start the binlog player after restore is complete")
skipSetSourceShards := flagSet.Bool("skip_set_source_shards", false, "do not set the SourceShar field on destination shards")
if err := flagSet.Parse(args); err != nil {
return nil, fmt.Errorf("cannot parse strategy: %v", err)
}
if flagSet.NArg() > 0 {
return nil, fmt.Errorf("strategy doesn't have positional arguments")
}
return &SplitStrategy{
PopulateBlpCheckpoint: *populateBlpCheckpoint,
DontStartBinlogPlayer: *dontStartBinlogPlayer,
SkipSetSourceShards: *skipSetSourceShards,
}, nil
}
func printUpdatedThrottlers(logger logutil.Logger, server string, names []string) {
table := tablewriter.NewWriter(loggerWriter{logger})
table.SetAutoFormatHeaders(false)
table.SetHeader([]string{"Name"})
for _, name := range names {
table.Append([]string{name})
}
table.Render()
logger.Printf("%d active throttler(s) on server '%v' were updated.\n", len(names), server)
}
// PrintAllCommands prints a help text for all registered commands to the given Logger.
func PrintAllCommands(logger logutil.Logger) {
for _, group := range commands {
if group.Name == "Debugging" {
continue
}
logger.Printf("%v: %v\n", group.Name, group.Description)
for _, cmd := range group.Commands {
logger.Printf(" %v %v\n", cmd.Name, cmd.Params)
}
logger.Printf("\n")
}
}