61 lines
1.4 KiB
Go
61 lines
1.4 KiB
Go
package version
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"runtime"
|
|
"strings"
|
|
"text/template"
|
|
)
|
|
|
|
// Build information. Populated at build-time.
|
|
var (
|
|
Version string
|
|
Revision string
|
|
Branch string
|
|
BuildUser string
|
|
BuildDate string
|
|
GoVersion = runtime.Version()
|
|
)
|
|
|
|
// versionInfoTmpl contains the template used by Print.
|
|
var versionInfoTmpl = `
|
|
{{.program}}, version {{.version}} (branch: {{.branch}}, revision: {{.revision}})
|
|
build user: {{.buildUser}}
|
|
build date: {{.buildDate}}
|
|
go version: {{.goVersion}}
|
|
`
|
|
|
|
// Print returns version information.
|
|
func Print(program string) (string, error) {
|
|
m := map[string]string{
|
|
"program": program,
|
|
"version": Version,
|
|
"revision": Revision,
|
|
"branch": Branch,
|
|
"buildUser": BuildUser,
|
|
"buildDate": BuildDate,
|
|
"goVersion": GoVersion,
|
|
}
|
|
t, err := template.New("version").Parse(versionInfoTmpl)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
var buf bytes.Buffer
|
|
if err := t.ExecuteTemplate(&buf, "version", m); err != nil {
|
|
return "", err
|
|
}
|
|
return strings.TrimSpace(buf.String()), nil
|
|
}
|
|
|
|
// Info returns version, branch and revision information.
|
|
func Info() string {
|
|
return fmt.Sprintf("(version=%s, branch=%s, revision=%s)", Version, Branch, Revision)
|
|
}
|
|
|
|
// BuildContext returns goVersion, buildUser and buildDate information.
|
|
func BuildContext() string {
|
|
return fmt.Sprintf("(go=%s, user=%s, date=%s)", GoVersion, BuildUser, BuildDate)
|
|
}
|