/
version.go
52 lines (46 loc) · 1.25 KB
/
version.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
// Copyright 2019 ko Build Authors All Rights Reserved.
//
// 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 commands
import (
"fmt"
"runtime/debug"
"github.com/spf13/cobra"
)
// Version is provided by govvv at compile-time
var Version string
// addVersion augments our CLI surface with version.
func addVersion(topLevel *cobra.Command) {
topLevel.AddCommand(&cobra.Command{
Use: "version",
Short: `Print ko version.`,
Run: func(_ *cobra.Command, _ []string) {
v := version()
if v == "" {
fmt.Println("could not determine build information")
} else {
fmt.Println(v)
}
},
})
}
func version() string {
if Version == "" {
i, ok := debug.ReadBuildInfo()
if !ok {
return ""
}
Version = i.Main.Version
}
return Version
}