/
version.go
54 lines (45 loc) · 971 Bytes
/
version.go
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package main
import (
"errors"
"fmt"
"os"
"regexp"
"runtime"
"runtime/debug"
"strings"
"time"
)
var (
version string
buildTimeStr string
buildTime time.Time
)
var sha1Regex = regexp.MustCompile("[a-f0-9]{40}")
func init() {
if len(buildTimeStr) > 0 {
var err error
buildTime, err = time.Parse("2006-01-02T15:04:05", buildTimeStr)
if err != nil {
fmt.Fprint(os.Stderr, err.Error())
os.Exit(1)
}
}
}
func isSHA1(str string) bool {
return sha1Regex.MatchString(str)
}
func getGoVersion() string {
return strings.TrimPrefix(runtime.Version(), "go")
}
func getModuleVersion(modulePath string) (string, error) {
bi, ok := debug.ReadBuildInfo()
if !ok {
return "", errors.New("couldn't retrieve build information")
}
for _, module := range bi.Deps {
if module.Path == modulePath {
return strings.TrimLeft(module.Version, "v"), nil
}
}
return "", fmt.Errorf("couldn't find %s in the build dependencies", modulePath)
}