switch to go vendoring

vendor/github.com/gookit/goutil/sysutil/sysutil_nonwin.go

@@ -0,0 +1,68 @@
+//go:build !windows
+// +build !windows
+
+package sysutil
+
+import (
+	"os/exec"
+	"runtime"
+	"syscall"
+)
+
+// IsWin system. linux windows darwin
+func IsWin() bool {
+	return false
+}
+
+// IsWindows system. linux windows darwin
+func IsWindows() bool {
+	return false
+}
+
+// IsMac system
+func IsMac() bool {
+	return runtime.GOOS == "darwin"
+}
+
+// IsDarwin system
+func IsDarwin() bool {
+	return runtime.GOOS == "darwin"
+}
+
+// IsLinux system
+func IsLinux() bool {
+	return runtime.GOOS == "linux"
+}
+
+// Kill a process by pid
+func Kill(pid int, signal syscall.Signal) error {
+	return syscall.Kill(pid, signal)
+}
+
+// ProcessExists check process exists by pid
+func ProcessExists(pid int) bool {
+	return nil == syscall.Kill(pid, 0)
+}
+
+// OpenBrowser Open browser URL
+//
+// Mac：
+//
+//	open 'https://github.com/inhere'
+//
+// Linux:
+//
+//	xdg-open URL
+//	x-www-browser 'https://github.com/inhere'
+//
+// Windows:
+//
+//	cmd /c start https://github.com/inhere
+func OpenBrowser(URL string) error {
+	bin := "x-www-browser"
+	if IsDarwin() {
+		bin = "open"
+	}
+
+	return exec.Command(bin, URL).Run()
+}