Create utils.go

Author: Azumi67

1.7/client/utils.go

@@ -0,0 +1,28 @@
+import (
+	"os"
+	"os/exec"
+	"runtime"
+	"strconv"
+)
+
+func Cmd(name string, args ...string) error {
+	cmd := exec.Command(name, args...)
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	return cmd.Run()
+}
+
+func WorkerCount(workerFlag string) int {
+	if workerFlag == "default" {
+		return runtime.NumCPU()
+	}
+	count, err := strconv.Atoi(workerFlag)
+	if err != nil || count < 0 {
+		return 0
+	}
+	return count
+}
+
+func LogFile(path string) (*os.File, error) {
+	return os.OpenFile(path, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
+}