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main.go
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main.go
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package main
import (
"flag"
"fmt"
"github.com/fabian-z/distkv"
"log"
"os"
"path/filepath"
)
// Command line defaults
const (
DefaultRaftAddr = ":12000"
)
// Command line parameters
var raftAddr string
var joinAddr string
var raftDir string
func init() {
workingDirectory, err := os.Getwd()
if err != nil {
log.Fatal("Error getting working directory:", err)
}
defaultRaftDir := filepath.Join(workingDirectory, "/raft")
flag.StringVar(&raftAddr, "raftsocket", DefaultRaftAddr, "Set Raft bind address")
flag.StringVar(&joinAddr, "raftjoin", "", "Set join address, if any")
flag.StringVar(&raftDir, "raftdir", defaultRaftDir, "Set raft directory")
}
func main() {
if !flag.Parsed() {
flag.Parse()
}
// Ensure Raft storage exists.
if raftDir == "" {
fmt.Fprintf(os.Stderr, "No Raft storage directory specified\n")
os.Exit(1)
}
os.MkdirAll(raftDir, 0700)
s := distkv.NewStore(true)
s.RaftDir = raftDir
s.RaftBind = raftAddr
if err := s.Open(joinAddr == ""); err != nil {
log.Fatalf("failed to open store: %s", err.Error())
}
// If join was specified, make the join request.
if joinAddr != "" {
if err := s.Join(joinAddr, raftAddr); err != nil {
log.Fatalf("failed to join node at %s: %s", joinAddr, err.Error())
}
}
log.Println("distkv started successfully")
if err := s.Close(); err != nil {
log.Println("distkv shutdown error:", err)
} else {
log.Println("distkv shutdown successfully")
}
}