mirror of
https://github.com/gravitational/teleport
synced 2024-10-22 18:23:25 +00:00
52 lines
1.6 KiB
Go
52 lines
1.6 KiB
Go
/*
|
|
Copyright 2018 Gravitational, Inc.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package utils
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/gravitational/trace"
|
|
|
|
"github.com/coreos/go-semver/semver"
|
|
)
|
|
|
|
// CheckVersions compares client and server versions and makes sure that the
|
|
// client version is greater than or equal to the minimum version supported
|
|
// by the server.
|
|
func CheckVersions(clientVersion string, minClientVersion string) error {
|
|
clientSemver, err := semver.NewVersion(clientVersion)
|
|
if err != nil {
|
|
return trace.Wrap(err,
|
|
"unsupported version format, need semver format: %q, e.g 1.0.0", clientVersion)
|
|
}
|
|
|
|
minClientSemver, err := semver.NewVersion(minClientVersion)
|
|
if err != nil {
|
|
return trace.Wrap(err,
|
|
"unsupported version format, need semver format: %q, e.g 1.0.0", minClientVersion)
|
|
}
|
|
|
|
if clientSemver.Compare(*minClientSemver) < 0 {
|
|
errorMessage := fmt.Sprintf("minimum client version supported by the server "+
|
|
"is %v. Please upgrade the client, downgrade the server, or use the "+
|
|
"--skip-version-check flag to by-pass this check.", minClientVersion)
|
|
return trace.BadParameter(errorMessage)
|
|
}
|
|
|
|
return nil
|
|
}
|