Start laying out the structure of gooni

internal/util/util.go

@@ -0,0 +1,19 @@
+package util
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/openobservatory/gooni/internal/colors"
+)
+
+// Log outputs a log message.
+func Log(msg string, v ...interface{}) {
+	fmt.Printf("     %s\n", colors.Purple(fmt.Sprintf(msg, v...)))
+}
+
+// Fatal error
+func Fatal(err error) {
+	fmt.Fprintf(os.Stderr, "\n     %s %s\n\n", colors.Red("Error:"), err)
+	os.Exit(1)
+}