tools/build-date.go

   1 package main
   2
   3 import (
   4         "fmt"
   5         "os"
   6         "strconv"
   7         "time"
   8 )
   9
  10 func main() {
  11         var buildTime time.Time
  12         epoch := os.Getenv("SOURCE_DATE_EPOCH")
  13         if epoch != "" {
  14                 i, err := strconv.Atoi(epoch)
  15                 if err != nil {
  16                         fmt.Errorf("SOURCE_DATE_EPOCH is not a valid integer")
  17                         os.Exit(1)
  18                 }
  19                 buildTime = time.Unix(int64(i), 0)
  20         } else {
  21                 buildTime = time.Now().Local()
  22         }
  23         fmt.Println(buildTime.Format("January 02, 2006"))
  24 }