70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
/*
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Copyright (c) 2014-2015 VMware, Inc. 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 version
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import (
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"context"
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"flag"
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"fmt"
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"log"
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"github.com/vmware/govmomi/govc/cli"
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"github.com/vmware/govmomi/govc/flags"
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)
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var gitVersion string
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type version struct {
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*flags.EmptyFlag
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require string
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}
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func init() {
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// Check that git tag in the release builds match the hardcoded version
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if gitVersion != "" && gitVersion[1:] != flags.Version {
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log.Panicf("version mismatch: git=%s vs govc=%s", gitVersion[1:], flags.Version)
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}
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cli.Register("version", &version{})
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}
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func (cmd *version) Register(ctx context.Context, f *flag.FlagSet) {
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f.StringVar(&cmd.require, "require", "", "Require govc version >= this value")
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}
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func (cmd *version) Run(ctx context.Context, f *flag.FlagSet) error {
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if cmd.require != "" {
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v, err := flags.ParseVersion(flags.Version)
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if err != nil {
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panic(err)
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}
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rv, err := flags.ParseVersion(cmd.require)
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if err != nil {
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return fmt.Errorf("failed to parse required version '%s': %s", cmd.require, err)
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}
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if !rv.Lte(v) {
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return fmt.Errorf("version %s or higher is required, this is version %s", cmd.require, flags.Version)
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}
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}
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fmt.Printf("govc %s\n", flags.Version)
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return nil
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}
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