From 20d440bfd8cd4b49648b059ce0753fc8aa8edb73 Mon Sep 17 00:00:00 2001
From: surtur <a_mirre@utb.cz>
Date: Mon, 2 Mar 2020 00:03:43 +0100
Subject: [PATCH] only download and reinstall what is not present

---
 Dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Dockerfile b/Dockerfile
index 41e90ee..21f740a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,2 +1,2 @@
 FROM archlinux
-RUN pacman -Syu --noconfirm gcc cmake make git valgrind && pacman -Scc && rm -rfv /var/cache/pacman/* /var/lib/pacman/sync/*
+RUN pacman -Syu --noconfirm --needed gcc cmake make git valgrind && pacman -Scc && rm -rfv /var/cache/pacman/* /var/lib/pacman/sync/*