From 108f98b6da06e4df4d247095f92eb38e12b6412c Mon Sep 17 00:00:00 2001
From: Bob Mottram <bob@freedombone.net>
Date: Tue, 20 Jun 2017 14:09:42 +0100
Subject: [PATCH] Check RAM availability before install of matrix

---
 src/freedombone-app-etherpad |  7 +------
 src/freedombone-app-matrix   |  2 ++
 src/freedombone-utils-setup  | 11 +++++++++++
 3 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/src/freedombone-app-etherpad b/src/freedombone-app-etherpad
index bae5a0f0..8ba4ccd8 100755
--- a/src/freedombone-app-etherpad
+++ b/src/freedombone-app-etherpad
@@ -452,12 +452,7 @@ function install_etherpad {
         exit 7359
     fi
 
-    # Check the amount of RAM
-    ram_available=$(grep MemTotal /proc/meminfo | awk '{print $2}')
-    if [ $ram_available -lt 2000000 ]; then
-        echo $'Need at least 2GB RAM to install etherpad'
-        exit 783524
-    fi
+    check_ram_availability 2
 
     if [ -f $IMAGE_PASSWORD_FILE ]; then
         ETHERPAD_ADMIN_PASSWORD="$(printf `cat $IMAGE_PASSWORD_FILE`)"
diff --git a/src/freedombone-app-matrix b/src/freedombone-app-matrix
index 56cd7175..938e1c07 100755
--- a/src/freedombone-app-matrix
+++ b/src/freedombone-app-matrix
@@ -621,6 +621,8 @@ function install_home_server {
 }
 
 function install_matrix {
+    check_ram_availability 1.5
+
     if [ ! -d $INSTALL_DIR ]; then
         mkdir -p $INSTALL_DIR
     fi
diff --git a/src/freedombone-utils-setup b/src/freedombone-utils-setup
index f31fadc7..d98c94c1 100755
--- a/src/freedombone-utils-setup
+++ b/src/freedombone-utils-setup
@@ -1028,4 +1028,15 @@ function combine_all_scripts {
     done
 }
 
+function check_ram_availability {
+    minimum_ram_gb="$1"
+    minimum_ram_bytes=$((minimum_ram_gb * 1024 * 1024))
+
+    ram_available=$(grep MemTotal /proc/meminfo | awk '{print $2}')
+    if [ $ram_available -lt $minimum_ram_bytes ]; then
+        echo $"Need at least ${minimum_ram_gb}GB RAM to install this app"
+        exit 783524
+    fi
+}
+
 # NOTE: deliberately no exit 0