mirror of
https://github.com/ko-build/ko.git
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53 lines
1.2 KiB
Go
53 lines
1.2 KiB
Go
// Copyright 2019 Google LLC All Rights Reserved.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package commands
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import (
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"fmt"
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"runtime/debug"
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"github.com/spf13/cobra"
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)
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// provided by govvv in compile-time
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var Version string
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// addVersion augments our CLI surface with version.
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func addVersion(topLevel *cobra.Command) {
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topLevel.AddCommand(&cobra.Command{
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Use: "version",
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Short: `Print ko version.`,
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Run: func(cmd *cobra.Command, args []string) {
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v := version()
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if v == "" {
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fmt.Println("could not determine build information")
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} else {
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fmt.Println(v)
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}
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},
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})
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}
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func version() string {
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if Version == "" {
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i, ok := debug.ReadBuildInfo()
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if !ok {
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return ""
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}
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Version = i.Main.Version
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}
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return Version
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}
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