Update install.sh

install.sh

@@ -1,17 +1,85 @@
 #!/usr/bin/env bash
 
-if ! which lsb_release >/dev/null
-then
-sudo apt-get install -y lsb-core > null
+# Get username
+USER=$(whoami)
+
+ARCH=$(uname -m)
+
+# Identify OS
+if [ -f /etc/os-release ]; then
+    # freedesktop.org and systemd
+    . /etc/os-release
+    OS=$NAME
+    VER=$VERSION_ID
+    UPSTREAM_ID=${ID_LIKE,,}
+
+    # Fallback to ID_LIKE if ID was not 'ubuntu' or 'debian'
+    if [ "${UPSTREAM_ID}" != "debian" ] && [ "${UPSTREAM_ID}" != "ubuntu" ]; then
+        UPSTREAM_ID="$(echo ${ID_LIKE,,} | sed s/\"//g | cut -d' ' -f1)"
+    fi
+
+elif type lsb_release >/dev/null 2>&1; then
+    # linuxbase.org
+    OS=$(lsb_release -si)
+    VER=$(lsb_release -sr)
+elif [ -f /etc/lsb-release ]; then
+    # For some versions of Debian/Ubuntu without lsb_release command
+    . /etc/lsb-release
+    OS=$DISTRIB_ID
+    VER=$DISTRIB_RELEASE
+elif [ -f /etc/debian_version ]; then
+    # Older Debian, Ubuntu, etc.
+    OS=Debian
+    VER=$(cat /etc/debian_version)
+elif [ -f /etc/SuSE-release ]; then
+    # Older SuSE, etc.
+    OS=SuSE
+    VER=$(cat /etc/SuSE-release)
+elif [ -f /etc/redhat-release ]; then
+    # Older Red Hat, CentOS, etc.
+    OS=RedHat
+    VER=$(cat /etc/redhat-release)
+else
+    # Fall back to uname, e.g. "Linux <version>", also works for BSD, etc.
+    OS=$(uname -s)
+    VER=$(uname -r)
 fi
 
-sudo apt-get install -y curl sudo  > null
+# Output debugging info if $DEBUG set
+if [ "$DEBUG" = "true" ]; then
+    echo "OS: $OS"
+    echo "VER: $VER"
+    echo "UPSTREAM_ID: $UPSTREAM_ID"
+    exit 0
+fi
+
+# Setup prereqs for server
+# Common named prereqs
+PREREQ="curl sudo gcc g++ make nodejs"
+PREREQDEB="dnsutils ufw"
+PREREQRPM="bind-utils"
+PREREQARCH="bind"
+
+echo "Installing prerequisites"
+if [ "${ID}" = "debian" ] || [ "$OS" = "Ubuntu" ] || [ "$OS" = "Debian" ] || [ "${UPSTREAM_ID}" = "ubuntu" ] || [ "${UPSTREAM_ID}" = "debian" ]; then
+    curl -sL https://deb.nodesource.com/setup_18.x | sudo -E bash -
+    sudo apt-get update
+    sudo apt-get install -y ${PREREQ} ${PREREQDEB} # git
+elif [ "$OS" = "CentOS" ] || [ "$OS" = "RedHat" ] || [ "${UPSTREAM_ID}" = "rhel" ] || [ "${OS}" = "Almalinux" ] || [ "${UPSTREAM_ID}" = "Rocky*" ] || [ "${UPSTREAM_ID}" = "suse" ]; then
+    sudo yum update -y
+    sudo yum install -y ${PREREQ} ${PREREQRPM} # git
+elif [ "${ID}" = "arch" ] || [ "${UPSTREAM_ID}" = "arch" ]; then
+    sudo pacman -Syu
+    sudo pacman -S ${PREREQ} ${PREREQARCH}
+else
+    echo "Unsupported OS"
+    # Here you could ask the user for permission to try and install anyway
+    # If they say yes, then do the install
+    # If they say no, exit the script
+    exit 1
+fi
 
 echo "Installing MeshCentral"
-curl -sL https://deb.nodesource.com/setup_18.x | sudo -E bash -
-sudo apt update > null
-sudo apt install -y gcc g++ make
-sudo apt install -y nodejs
 sudo npm install -g npm
 
 sudo mkdir -p /opt/meshcentral/meshcentral-data