RosettaCodeData/Task/File-modification-time/Go/file-modification-time.go

28 lines
612 B
Go

package main
import (
"fmt"
"os"
"syscall"
"time"
)
var filename = "input.txt"
func main() {
foo, err := os.Stat(filename)
if err != nil {
fmt.Println(err)
return
}
fmt.Println("mod time was:", foo.ModTime())
mtime := time.Now()
atime := mtime // a default, because os.Chtimes has an atime parameter.
// but see if there's a real atime that we can preserve.
if ss, ok := foo.Sys().(*syscall.Stat_t); ok {
atime = time.Unix(ss.Atim.Sec, ss.Atim.Nsec)
}
os.Chtimes(filename, atime, mtime)
fmt.Println("mod time now:", mtime)
}