From e2b42cf6fad4110a194e90bd0296604121cdd49c Mon Sep 17 00:00:00 2001
From: Henrik Lissner <henrik@lissner.net>
Date: Thu, 10 Nov 2016 18:38:35 +0100
Subject: [PATCH] docker: add --needed flag to pacman in install script

---
 docker/install | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/docker/install b/docker/install
index c5bb6f25..69f9ade6 100755
--- a/docker/install
+++ b/docker/install
@@ -1,14 +1,13 @@
 #!/usr/bin/env bash
 
-case "$OSTYPE" in
+case $OSTYPE in
     darwin*)
         brew cask install virtualbox
         brew install docker docker-compose docker-machine
         ;;
     linux*)
-        if [[ -f /etc/arch-release ]]
-        then
-            sudo pacman --noconfirm -S docker docker-compose
+        if [[ -f /etc/arch-release ]]; then
+            sudo pacman --needed --noconfirm -S docker docker-compose
             sudo systemctl enable docker.service
             sudo systemctl start docker.service
         fi