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123 lines
3.4 KiB
123 lines
3.4 KiB
/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"errors"
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"fmt"
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"io"
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"os"
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"github.com/spf13/cobra"
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"google.golang.org/grpc"
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"google.golang.org/grpc/codes"
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"k8s.io/helm/pkg/helm"
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pb "k8s.io/helm/pkg/proto/hapi/version"
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"k8s.io/helm/pkg/version"
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)
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const versionDesc = `
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Show the client and server versions for Helm and tiller.
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This will print a representation of the client and server versions of Helm and
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Tiller. The output will look something like this:
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Client: &version.Version{SemVer:"v2.0.0", GitCommit:"ff52399e51bb880526e9cd0ed8386f6433b74da1", GitTreeState:"clean"}
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Server: &version.Version{SemVer:"v2.0.0", GitCommit:"b0c113dfb9f612a9add796549da66c0d294508a3", GitTreeState:"clean"}
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- SemVer is the semantic version of the release.
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- GitCommit is the SHA for the commit that this version was built from.
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- GitTreeState is "clean" if there are no local code changes when this binary was
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built, and "dirty" if the binary was built from locally modified code.
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To print just the client version, use '--client'. To print just the server version,
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use '--server'.
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`
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type versionCmd struct {
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out io.Writer
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client helm.Interface
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showClient bool
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showServer bool
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short bool
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}
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func newVersionCmd(c helm.Interface, out io.Writer) *cobra.Command {
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version := &versionCmd{
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client: c,
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out: out,
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}
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cmd := &cobra.Command{
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Use: "version",
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Short: "print the client/server version information",
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Long: versionDesc,
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RunE: func(cmd *cobra.Command, args []string) error {
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// If neither is explicitly set, show both.
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if !version.showClient && !version.showServer {
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version.showClient, version.showServer = true, true
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}
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if version.showServer {
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// We do this manually instead of in PreRun because we only
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// need a tunnel if server version is requested.
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setupConnection(cmd, args)
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}
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version.client = ensureHelmClient(version.client)
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return version.run()
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},
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}
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f := cmd.Flags()
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f.BoolVarP(&version.showClient, "client", "c", false, "client version only")
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f.BoolVarP(&version.showServer, "server", "s", false, "server version only")
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f.BoolVar(&version.short, "short", false, "print the version number")
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return cmd
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}
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func (v *versionCmd) run() error {
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if v.showClient {
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cv := version.GetVersionProto()
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fmt.Fprintf(v.out, "Client: %s\n", formatVersion(cv, v.short))
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}
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if !v.showServer {
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return nil
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}
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resp, err := v.client.GetVersion()
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if err != nil {
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if grpc.Code(err) == codes.Unimplemented {
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return errors.New("server is too old to know its version")
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}
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if flagDebug {
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fmt.Fprintln(os.Stderr, err)
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}
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return errors.New("cannot connect to Tiller")
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}
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fmt.Fprintf(v.out, "Server: %s\n", formatVersion(resp.Version, v.short))
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return nil
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}
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func formatVersion(v *pb.Version, short bool) string {
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if short {
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return fmt.Sprintf("%s+g%s", v.SemVer, v.GitCommit[:7])
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}
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return fmt.Sprintf("%#v", v)
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}
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