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versionfix.go
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versionfix.go
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// Copyright 2015 Keybase, Inc. All rights reserved. Use of
// this source code is governed by the included BSD license.
package client
import (
"fmt"
"github.com/blang/semver"
"github.com/keybase/client/go/libkb"
keybase1 "github.com/keybase/client/go/protocol"
"golang.org/x/net/context"
"os"
"time"
)
func FixVersionClash(g *libkb.GlobalContext, cl libkb.CommandLine) (err error) {
var cli keybase1.ConfigClient
var ctlCli keybase1.CtlClient
var serviceConfig keybase1.Config
g.Log.Debug("+ FixVersionClash")
defer func() {
g.Log.Debug("- FixVersionClash -> %v", err)
}()
cli, err = GetConfigClient(g)
if err != nil {
return err
}
serviceConfig, err = cli.GetConfig(context.TODO(), 0)
if err != nil {
return err
}
g.Log.Debug("| Contacted service; got version: %s", serviceConfig.Version)
// We'll check and restart the service if there is a new version.
var semverClient, semverService semver.Version
cliVersion := libkb.VersionString()
if g.Env.GetRunMode() == libkb.DevelRunMode {
tmp := os.Getenv("KEYBASE_SET_VERSION")
if len(tmp) > 0 {
cliVersion = tmp
}
}
semverClient, err = semver.Make(cliVersion)
if err != nil {
return err
}
semverService, err = semver.Make(serviceConfig.Version)
if err != nil {
return err
}
g.Log.Debug("| version check %s v %s", semverClient, semverService)
if semverClient.EQ(semverService) {
g.Log.Debug("| versions check out")
return nil
} else if semverClient.LT(semverService) {
return fmt.Errorf("Unexpected version clash; client is at v%s, which *less than* server at v%s",
semverClient, semverService)
}
g.Log.Warning("Restarting after upgrade; service is running v%s, while v%s is available",
semverService, semverClient)
ctlCli, err = GetCtlClient(g)
if err != nil {
return err
}
err = ctlCli.Stop(context.TODO(), keybase1.StopArg{})
if err != nil {
return err
}
time.Sleep(10 * time.Millisecond)
g.Log.Debug("Waiting for shutdown...")
time.Sleep(1 * time.Second)
if serviceConfig.ForkType == keybase1.ForkType_AUTO {
g.Log.Info("Restarting service...")
_, err = AutoForkServer(g, cl)
}
return err
}