Better OS checks

osspecifics/oschecks.go

@@ -0,0 +1,17 @@
+package osspecifics
+
+import "runtime"
+
+// For some reason, `runtime` package does not provide this while
+// "goconst" linter complains about us not using constants in
+// expressions like `runtime.GOOS == "windows"`. And it is
+// not wrong, accidentally mispelling these OS IDs is a
+// matter of time.
+
+func IsWindows() bool {
+	return runtime.GOOS == "windows"
+}
+
+func IsMacOS() bool {
+	return runtime.GOOS == "darwin"
+}