/
cmd_client.go
53 lines (47 loc) · 1.16 KB
/
cmd_client.go
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package cmd
import (
"fmt"
"github.com/1xyz/coolbeans/cluster/client"
"github.com/1xyz/coolbeans/tools"
"github.com/docopt/docopt-go"
log "github.com/sirupsen/logrus"
"os"
"time"
)
func CmdClusterClient(argv []string, version string) {
usage := `
Usage:
cluster-client is_leader [--node-addr=<addr>] [--timeout=<secs>]
options:
-h, --help
--node-addr=<addr> Address of a cluster node [default: 127.0.0.1:11000].
--timeout=<secs> Connect timeout in seconds [default: 30]
`
opts, err := docopt.ParseArgs(usage, argv[1:], version)
if err != nil {
log.Fatalf("CmdClusterClient: error parsing arguments. err=%v", err)
}
ldr := tools.OptsBool(opts, "is_leader")
if ldr {
cmdLeader(
tools.OptsStr(opts, "--node-addr"),
tools.OptsSeconds(opts, "--timeout"))
return
}
log.Infof("Unknown command")
}
func cmdLeader(nodeAddr string, timeout time.Duration) {
c, err := client.NewClusterNodeClient(nodeAddr, timeout)
if err != nil {
log.Fatalf("cmdLeader: err = %v", err)
}
defer c.Close()
b, err := c.IsNodeLeader()
if err != nil {
log.Fatalf("cmdLeader err %v", err)
}
fmt.Printf("isNodeLeader: %v\n", b)
if !b {
os.Exit(1)
}
}