package main
import (
"fmt"
"os"
"os/exec"
"path/filepath"
"time"
)
func main() {
if len(os.Args) < 2 {
fmt.Printf("Usage: %s [command]\n", os.Args[0])
os.Exit(1)
}
cmdName := os.Args[1]
if filepath.Base(os.Args[1]) == os.Args[1] {
if lp, err := exec.LookPath(os.Args[1]); err != nil {
fmt.Println("look path error:", err)
os.Exit(1)
} else {
cmdName = lp
}
}
procAttr := &os.ProcAttr {
Files: []*os.File{os.Stdin, os.Stdout, os.Stderr},
}
cwd, err := os.Getwd()
if err != nil {
fmt.Println("look path error:", err)
os.Exit(1)
}
start := time.Now()
process, err := os.StartProcess(cmdName, []string{cwd}, procAttr)
if err != nil {
fmt.Println("start process error:", err)
os.Exit(2)
}
processState, err := process.Wait()
if err != nil {
fmt.Println("wait error:", err)
os.Exit(3)
}
fmt.Println()
fmt.Println("real", time.Now().Sub(start))
fmt.Println("user", processState.UserTime())
fmt.Println("system", processState.SystemTime())
}
end.
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