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