zrepl/rpc/dataconn/timeoutconn/internal/wireevaluator/wireevaluator.go
Christian Schwarz 796c5ad42d rpc rewrite: control RPCs using gRPC + separate RPC for data transfer
transport/ssh: update go-netssh to new version
    => supports CloseWrite and Deadlines
    => build: require Go 1.11 (netssh requires it)
2019-03-13 13:53:48 +01:00

112 lines
2.5 KiB
Go

// a tool to test whether a given transport implements the timeoutconn.Wire interface
package main
import (
"context"
"flag"
"fmt"
"io/ioutil"
"os"
"path"
netssh "github.com/problame/go-netssh"
"github.com/zrepl/yaml-config"
"github.com/zrepl/zrepl/config"
"github.com/zrepl/zrepl/transport"
transportconfig "github.com/zrepl/zrepl/transport/fromconfig"
)
func noerror(err error) {
if err != nil {
panic(err)
}
}
type Config struct {
Connect config.ConnectEnum
Serve config.ServeEnum
}
var args struct {
mode string
configPath string
testCase string
}
var conf Config
type TestCase interface {
Client(wire transport.Wire)
Server(wire transport.Wire)
}
func main() {
flag.StringVar(&args.mode, "mode", "", "connect|serve")
flag.StringVar(&args.configPath, "config", "", "config file path")
flag.StringVar(&args.testCase, "testcase", "", "")
flag.Parse()
bytes, err := ioutil.ReadFile(args.configPath)
noerror(err)
err = yaml.UnmarshalStrict(bytes, &conf)
noerror(err)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
global := &config.Global{
Serve: &config.GlobalServe{
StdinServer: &config.GlobalStdinServer{
SockDir: "/tmp/wireevaluator_stdinserver",
},
},
}
switch args.mode {
case "connect":
tc, err := getTestCase(args.testCase)
noerror(err)
connecter, err := transportconfig.ConnecterFromConfig(global, conf.Connect)
noerror(err)
wire, err := connecter.Connect(ctx)
noerror(err)
tc.Client(wire)
case "serve":
tc, err := getTestCase(args.testCase)
noerror(err)
lf, err := transportconfig.ListenerFactoryFromConfig(global, conf.Serve)
noerror(err)
l, err := lf()
noerror(err)
conn, err := l.Accept(ctx)
noerror(err)
tc.Server(conn)
case "stdinserver":
identity := flag.Arg(0)
unixaddr := path.Join(global.Serve.StdinServer.SockDir, identity)
err := netssh.Proxy(ctx, unixaddr)
if err == nil {
os.Exit(0)
}
panic(err)
default:
panic(fmt.Sprintf("unknown mode %q", args.mode))
}
}
func getTestCase(tcName string) (TestCase, error) {
switch tcName {
case "closewrite_server":
return &CloseWrite{mode: CloseWriteServerSide}, nil
case "closewrite_client":
return &CloseWrite{mode: CloseWriteClientSide}, nil
case "readdeadline_client":
return &Deadlines{mode: DeadlineModeClientTimeout}, nil
case "readdeadline_server":
return &Deadlines{mode: DeadlineModeServerTimeout}, nil
default:
return nil, fmt.Errorf("unknown test case %q", tcName)
}
}