vendor/github.com/coreos/etcd/clientv3/balancer/resolver/endpoint/endpoint.go:114:78: undefined: resolver.BuildOption

[frodriguez-sr]

There's an issue when try to vendoring the client

package main
import (
	"context"
	"flag"
	"fmt"
	"log"
	"time"

	"go.etcd.io/etcd/clientv3"
	"go.etcd.io/etcd/clientv3/concurrency"
)

func main() {
	var name = flag.String("name", "", "give a name")
	flag.Parse() // Create a etcd client
	cli, err := clientv3.New(clientv3.Config{Endpoints: []string{"localhost:2379"}})
	if err != nil {
		log.Fatal(err)
	}
	defer cli.Close() // create a sessions to aqcuire a lock
	s, _ := concurrency.NewSession(cli)
	defer s.Close()
	l := concurrency.NewMutex(s, "/distributed-lock/")
	ctx := context.Background() // acquire lock (or wait to have it)
	if err := l.Lock(ctx); err != nil {
		log.Fatal("cannot get lock")
	}
	fmt.Println("acquired lock for ", *name)
	fmt.Println("Do some work in", *name)
	time.Sleep(5 * time.Second)
	if err := l.Unlock(ctx); err != nil {
		log.Fatal(err)
	}
	fmt.Println("released lock for ", *name)
}

Works when I run
go run main.go -name first

But at the time to vendoring it has the same issue
go mod init && go mod tidy
and then

I got

go: src.srconnect.io/frodriguez/etcd_poc imports
        go.etcd.io/etcd/clientv3 tested by
        go.etcd.io/etcd/clientv3.test imports
        github.com/coreos/etcd/auth imports
        github.com/coreos/etcd/mvcc/backend imports
        github.com/coreos/bbolt: github.com/coreos/[email protected]: parsing go.mod:
        module declares its path as: go.etcd.io/bbolt
                but was required as: github.com/coreos/bbolt

If I run
go mod vendor
and then
go run -mod=vendor main.go -name first

I get

# github.com/coreos/etcd/clientv3/balancer/resolver/endpoint
vendor/github.com/coreos/etcd/clientv3/balancer/resolver/endpoint/endpoint.go:114:78: undefined: resolver.BuildOption
vendor/github.com/coreos/etcd/clientv3/balancer/resolver/endpoint/endpoint.go:182:31: undefined: resolver.ResolveNowOption
# github.com/coreos/etcd/clientv3/balancer/picker
vendor/github.com/coreos/etcd/clientv3/balancer/picker/err.go:37:44: undefined: balancer.PickOptions
vendor/github.com/coreos/etcd/clientv3/balancer/picker/roundrobin_balanced.go:55:54: undefined: balancer.PickOptions

Looks like some dependencies are broken or needs to be updated

[cfc4n]

go get go.etcd.io/etcd/[email protected]

via : #12068

[frodriguez-sr]

@cfc4n

-> go get -v go.etcd.io/etcd/[email protected]       
get "go.etcd.io/etcd/clientv3": found meta tag get.metaImport{Prefix:"go.etcd.io/etcd", VCS:"git", RepoRoot:"https:/etcd-io/etcd"} at //go.etcd.io/etcd/clientv3?go-get=1
get "go.etcd.io/etcd": found meta tag get.metaImport{Prefix:"go.etcd.io/etcd", VCS:"git", RepoRoot:"https:/etcd-io/etcd"} at //go.etcd.io/etcd?go-get=1
get "go.etcd.io/etcd/clientv3": verifying non-authoritative meta tag
go get go.etcd.io/etcd/[email protected]: go.etcd.io/[email protected]: invalid version: module contains a go.mod file, so major version must be compatible: should be v0 or v1, not v3

[cfc4n]

use command go get go.etcd.io/etcd/clientv3@4873f5516

cfc4n@cnxct$: ~/Project/golang/gotest/src/etcd_clientv3                                                (11:22:13)
$ GOPROXY="" go get go.etcd.io/etcd/clientv3@4873f5516
go: found go.etcd.io/etcd/clientv3 in go.etcd.io/etcd v0.5.0-alpha.5.0.20200716221548-4873f5516bd9
cfc4n@cnxct$: ~/Project/golang/gotest/src/etcd_clientv3                                                (11:22:18)
$ go mod tidy
cfc4n@cnxct$: ~/Project/golang/gotest/src/etcd_clientv3                                                (11:22:26)
$ cat go.mod
module etcd_clientv3

go 1.14

require go.etcd.io/etcd v0.5.0-alpha.5.0.20200716221548-4873f5516bd9

[frodriguez-sr]

I tried with a replacement of the grpc library.
I made this and worked fine

replace (
        github.com/coreos/etcd => github.com/coreos/etcd v3.3.10+incompatible
        google.golang.org/grpc v1.30.0 => google.golang.org/grpc v1.27.0
)

Then
go get -v
go mod vendor
go run -mod=vendor main.go -name first
And worked fine

Thanks for the help

[oldthreefeng]

i just change the require. use tag v3.4.3 to slove. thanks for this issue.

require (
	go.etcd.io/etcd v0.0.0-20191023171146-3cf2f69b5738
)