bitraft/main.go

128 lines
3.1 KiB
Go

package main
import (
"fmt"
"os"
"strings"
"github.com/hashicorp/go-sockaddr/template"
"github.com/rs/zerolog"
flag "github.com/spf13/pflag"
"github.com/tidwall/finn"
)
var (
debug bool
version bool
nocolor bool
trace bool
maxDatafileSize int
bind string
dir string
logdir string
join string
consistency string
durability string
parseSnapshot string
log zerolog.Logger
)
func init() {
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "Usage: %s [options]\n", os.Args[0])
flag.PrintDefaults()
}
flag.BoolVarP(&version, "version", "V", false, "display version information")
flag.BoolVarP(&debug, "debug", "D", false, "enable debug logging")
flag.BoolVarP(&trace, "trace", "T", false, "enable trace logging")
// TODO: stop underlying logger from using colors from.. kvnode? when this is called.
flag.BoolVar(&nocolor, "no-color", false, "do not use colors during logging")
flag.IntVar(&maxDatafileSize, "max-datafile-size", 1<<20, "maximum datafile size in bytes")
flag.StringVarP(&bind, "bind", "b", ":4920", "bind/discoverable ip:port")
flag.StringVarP(&dir, "data", "d", "data", "data directory")
flag.StringVarP(&logdir, "log-dir", "l", "", "log directory. If blank it will equals --data")
flag.StringVarP(&join, "join", "j", "", "Join a cluster by providing an address")
flag.StringVar(&consistency, "consistency", "high", "Consistency (low,medium,high)")
flag.StringVar(&durability, "durability", "high", "Durability (low,medium,high)")
flag.StringVar(&parseSnapshot, "parse-snapshot", "", "Parse and output a snapshot to Redis format")
log = zerolog.New(&zerolog.ConsoleWriter{NoColor: nocolor, Out: os.Stdout}).With().Timestamp().Logger()
}
func main() {
flag.Parse()
switch {
case trace:
zerolog.SetGlobalLevel(zerolog.TraceLevel)
case debug:
zerolog.SetGlobalLevel(zerolog.DebugLevel)
default:
zerolog.SetGlobalLevel(zerolog.InfoLevel)
}
if version {
fmt.Printf("bitraft version %s", FullVersion())
os.Exit(0)
}
if parseSnapshot != "" {
err := WriteRedisCommandsFromSnapshot(os.Stdout, parseSnapshot)
if err != nil {
log.Warn().Err(err).Msg("failed to parse snapshot")
os.Exit(1)
}
return
}
var lconsistency finn.Level
switch strings.ToLower(consistency) {
default:
log.Warn().Msg("invalid --consistency")
case "low":
lconsistency = finn.Low
case "medium", "med":
lconsistency = finn.Medium
case "high":
lconsistency = finn.High
}
var ldurability finn.Level
switch strings.ToLower(durability) {
default:
log.Warn().Msg("invalid --durability")
case "low":
ldurability = finn.Low
case "medium", "med":
ldurability = finn.Medium
case "high":
ldurability = finn.High
}
if logdir == "" {
logdir = dir
}
mustParse := func(addr string) string {
r, err := template.Parse(addr)
if err != nil {
log.Fatal().Err(err).Msgf("error parsing addr %s: %s", addr, err)
}
return r
}
log.Debug().Str("bind", bind).Msg("bind raw")
bind = mustParse(bind)
log.Debug().Str("bind", bind).Msg("bind parsed")
if err := ListenAndServe(bind, join, dir, logdir, lconsistency, ldurability); err != nil {
log.Warn().Msgf("%v", err)
}
}