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buildinfo.go
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buildinfo.go
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/*
Copyright 2019 The Vitess Authors.
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 servenv
import (
"fmt"
"runtime"
"strconv"
"time"
"github.com/spf13/pflag"
"vitess.io/vitess/go/stats"
)
var (
buildHost = ""
buildUser = ""
buildTime = ""
buildGitRev = ""
buildGitBranch = ""
jenkinsBuildNumberStr = ""
// version registers the command line flag to expose build info.
version bool
)
func registerVersionFlag(fs *pflag.FlagSet) {
fs.BoolVarP(&version, "version", "v", version, "print binary version")
}
// AppVersion is the struct to store build info.
var AppVersion versionInfo
type versionInfo struct {
buildHost string
buildUser string
buildTime int64
buildTimePretty string
buildGitRev string
buildGitBranch string
jenkinsBuildNumber int64
goVersion string
goOS string
goArch string
version string
}
// ToStringMap returns the version info as a map[string]string, allowing version
// info to be used in things like arbitrary string-tag maps (e.g. tablet tags
// in the topo).
func (v *versionInfo) ToStringMap() map[string]string {
return map[string]string{
"build_host": v.buildHost,
"build_user": v.buildUser,
"build_time": v.buildTimePretty,
"build_git_rev": v.buildGitRev,
"build_git_branch": v.buildGitBranch,
"go_version": v.goVersion,
"goos": v.goOS,
"goarch": v.goArch,
"version": v.version,
}
}
func (v *versionInfo) Print() {
fmt.Println(v)
}
func (v *versionInfo) String() string {
jenkins := ""
if v.jenkinsBuildNumber != 0 {
jenkins = fmt.Sprintf(" (Jenkins build %d)", v.jenkinsBuildNumber)
}
return fmt.Sprintf("Version: %s%s (Git revision %s branch '%s') built on %s by %s@%s using %s %s/%s",
v.version, jenkins, v.buildGitRev, v.buildGitBranch, v.buildTimePretty, v.buildUser, v.buildHost, v.goVersion, v.goOS, v.goArch)
}
func (v *versionInfo) MySQLVersion() string {
return mySQLServerVersion
}
func init() {
t, err := time.Parse(time.UnixDate, buildTime)
if buildTime != "" && err != nil {
panic(fmt.Sprintf("Couldn't parse build timestamp %q: %v", buildTime, err))
}
jenkinsBuildNumber, err := strconv.ParseInt(jenkinsBuildNumberStr, 10, 64)
if err != nil {
jenkinsBuildNumber = 0
}
AppVersion = versionInfo{
buildHost: buildHost,
buildUser: buildUser,
buildTime: t.Unix(),
buildTimePretty: buildTime,
buildGitRev: buildGitRev,
buildGitBranch: buildGitBranch,
jenkinsBuildNumber: jenkinsBuildNumber,
goVersion: runtime.Version(),
goOS: runtime.GOOS,
goArch: runtime.GOARCH,
version: versionName,
}
stats.NewString("BuildHost").Set(AppVersion.buildHost)
stats.NewString("BuildUser").Set(AppVersion.buildUser)
stats.NewGauge("BuildTimestamp", "build timestamp").Set(AppVersion.buildTime)
stats.NewString("BuildGitRev").Set(AppVersion.buildGitRev)
stats.NewString("BuildGitBranch").Set(AppVersion.buildGitBranch)
stats.NewGauge("BuildNumber", "build number").Set(AppVersion.jenkinsBuildNumber)
stats.NewString("GoVersion").Set(AppVersion.goVersion)
stats.NewString("GoOS").Set(AppVersion.goOS)
stats.NewString("GoArch").Set(AppVersion.goArch)
buildLabels := []string{"BuildHost", "BuildUser", "BuildTimestamp", "BuildGitRev", "BuildGitBranch", "BuildNumber"}
buildValues := []string{
AppVersion.buildHost,
AppVersion.buildUser,
fmt.Sprintf("%v", AppVersion.buildTime),
AppVersion.buildGitRev,
AppVersion.buildGitBranch,
fmt.Sprintf("%v", AppVersion.jenkinsBuildNumber),
}
stats.NewGaugesWithMultiLabels("BuildInformation", "build information exposed via label", buildLabels).Set(buildValues, 1)
OnParse(registerVersionFlag)
}