Data commit

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

@@ -0,0 +1,27 @@
+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)
+}