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package main
import (
"fmt"
"io/ioutil"
"log"
"os"
"path/filepath"
"time"
"github.com/djherbis/times"
)
func main() {
switch len(os.Args) {
case 1:
tempFile()
fmt.Println()
tempDir()
default:
printTimes(os.Args[1])
}
}
func tempDir() {
name, err := ioutil.TempDir("", "")
if err != nil {
log.Fatal(err)
}
defer os.Remove(name)
fmt.Println("# DIR: " + name)
symname := filepath.Join(filepath.Dir(name), "sym-"+filepath.Base(name))
if err := os.Symlink(name, symname); err != nil {
log.Fatal(err)
}
defer os.Remove(symname)
newAtime := time.Now().Add(-10 * time.Second)
newMtime := time.Now().Add(10 * time.Second)
if err := os.Chtimes(name, newAtime, newMtime); err != nil {
log.Fatal(err)
}
printTimes(symname)
}
func tempFile() {
f, err := ioutil.TempFile("", "")
if err != nil {
log.Fatal(err)
}
defer os.Remove(f.Name())
defer f.Close()
fmt.Println("# FILE: " + f.Name())
symname := filepath.Join(filepath.Dir(f.Name()), "sym-"+filepath.Base(f.Name()))
if err := os.Symlink(f.Name(), symname); err != nil {
log.Fatal(err)
}
defer os.Remove(symname)
newAtime := time.Now().Add(-10 * time.Second)
newMtime := time.Now().Add(10 * time.Second)
if err := os.Chtimes(f.Name(), newAtime, newMtime); err != nil {
log.Fatal(err)
}
printTimes(symname)
}
func printTimes(name string) {
fmt.Println("## Stat:", name)
printTimespec(times.Stat(name))
fmt.Println("\n## Lstat:", name)
printTimespec(times.Lstat(name))
}
func printTimespec(ts times.Timespec, err error) {
if err != nil {
log.Fatal(err)
}
fmt.Println("AccessTime:", ts.AccessTime())
fmt.Println("ModTime:", ts.ModTime())
if ts.HasChangeTime() {
fmt.Println("ChangeTime:", ts.ChangeTime())
}
if ts.HasBirthTime() {
fmt.Println("BirthTime:", ts.BirthTime())
}
}
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