126 lines
2.4 KiB
Go
126 lines
2.4 KiB
Go
package version
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import (
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"fmt"
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"runtime"
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"runtime/debug"
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"strings"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/spf13/cobra"
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"go.ntppool.org/common/logger"
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"golang.org/x/mod/semver"
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)
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// VERSION has the current software version (set in the build process)
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var VERSION string
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var buildTime string
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var gitVersion string
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var gitModified bool
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var info Info
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type Info struct {
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Version string `json:",omitempty"`
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GitRev string `json:",omitempty"`
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BuildTime string `json:",omitempty"`
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}
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func init() {
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info.BuildTime = buildTime
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info.GitRev = gitVersion
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if len(VERSION) == 0 {
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VERSION = "dev-snapshot"
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} else {
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if !strings.HasPrefix(VERSION, "v") {
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VERSION = "v" + VERSION
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}
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if !semver.IsValid(VERSION) {
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logger.Setup().Warn("invalid version number", "version", VERSION)
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}
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}
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if bi, ok := debug.ReadBuildInfo(); ok {
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for _, h := range bi.Settings {
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// logger.Setup().Info("build info", "k", h.Key, "v", h.Value)
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switch h.Key {
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case "vcs.time":
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buildTime = h.Value
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info.BuildTime = h.Value
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case "vcs.revision":
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// https://blog.carlmjohnson.net/post/2023/golang-git-hash-how-to/
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// todo: use BuildInfo.Main.Version if revision is empty
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gitVersion = h.Value
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info.GitRev = h.Value
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case "vcs.modified":
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if h.Value == "true" {
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gitModified = true
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}
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}
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}
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}
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info.Version = VERSION
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Version()
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}
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func VersionCmd(name string) *cobra.Command {
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versionCmd := &cobra.Command{
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Use: "version",
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Short: "Print version and build information",
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Run: func(cmd *cobra.Command, args []string) {
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ver := Version()
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fmt.Printf("%s %s\n", name, ver)
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},
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}
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return versionCmd
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}
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func RegisterMetric(registry prometheus.Registerer) {
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buildInfo := prometheus.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "build_info",
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Help: "Build information",
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},
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[]string{"version", "build"},
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)
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registry.MustRegister(buildInfo)
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info := VersionInfo()
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buildInfo.WithLabelValues(fmt.Sprintf("%s/%s", info.Version, info.GitRev), info.BuildTime).Set(1)
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}
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var v string
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func VersionInfo() Info {
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return info
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}
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func Version() string {
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if len(v) > 0 {
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return v
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}
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extra := []string{}
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if len(buildTime) > 0 {
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extra = append(extra, buildTime)
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}
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extra = append(extra, runtime.Version())
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v := VERSION
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if len(gitVersion) > 0 {
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g := gitVersion
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if len(g) > 7 {
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g = g[0:7]
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}
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v += "/" + g
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if gitModified {
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v += "-M"
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}
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}
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v = fmt.Sprintf("%s (%s)", v, strings.Join(extra, ", "))
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return v
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}
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