From eecd062f9ee189579d4263be5c73b42a16f23faa Mon Sep 17 00:00:00 2001
From: EuAndreh <eu@euandre.org>
Date: Sat, 25 May 2019 14:27:46 -0300
Subject: Use apt_wait before interacting with apt-get

---
 provision.sh | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/provision.sh b/provision.sh
index b9cbb79..deb3056 100644
--- a/provision.sh
+++ b/provision.sh
@@ -2,6 +2,23 @@
 set -Eeuo pipefail
 cd "${BASH_SOURCE%/*}/"
 
-sudo apt-get update
-sudo apt-get upgrade -y
-sudo apt-get install -y docker-compose
+apt_wait() {
+  local -r i=0
+  tput sc
+  while fuser /var/lib/apt/lists/lock >/dev/null 2>&1 ; do
+    case $((i % 4)) in
+      0 ) j="-" ;;
+      1 ) j="\\" ;;
+      2 ) j="|" ;;
+      3 ) j="/" ;;
+    esac
+    tput rc
+    echo -en "\r[$j] Waiting for other software managers to finish..."
+    sleep 0.5
+    ((i=i+1))
+  done
+}
+
+apt_wait && sudo apt-get update
+apt_wait && sudo apt-get upgrade -y
+apt_wait && sudo apt-get install -y docker-compose
-- 
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