Update alpine-vaultwarden-v5-install.sh

Code refactoring

install/alpine-vaultwarden-v5-install.sh

@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/bin/sh
 
 # Copyright (c) 2021-2023 tteck
 # Author: tteck (tteckster)
@@ -7,7 +7,13 @@
 
 if [ "$VERBOSE" = "yes" ]; then set -x; STD=""; else STD="silent"; fi
 silent() { "$@" > /dev/null 2>&1; }
-if [ "$DISABLEIPV6" == "yes" ]; then echo "net.ipv6.conf.all.disable_ipv6 = 1" >>/etc/sysctl.conf; $STD sysctl -p; fi
+if [ "$DISABLEIPV6" == "yes" ]; then 
+$STD sysctl net.ipv6.conf.all.disable_ipv6=1
+$STD sysctl net.ipv6.conf.default.disable_ipv6=1
+echo "net.ipv6.conf.all.disable_ipv6 = 1" >> /etc/sysctl.d/99-sysctl.conf
+echo "net.ipv6.conf.default.disable_ipv6 = 1" >> /etc/sysctl.d/99-sysctl.conf
+$STD sysctl -p /etc/sysctl.d/99-sysctl.conf 
+fi
 YW=$(echo "\033[33m")
 RD=$(echo "\033[01;31m")
 BL=$(echo "\033[36m")
@@ -15,17 +21,18 @@ GN=$(echo "\033[1;92m")
 CL=$(echo "\033[m")
 RETRY_NUM=10
 RETRY_EVERY=3
+i=$RETRY_NUM
 CM="${GN}✓${CL}"
 CROSS="${RD}✗${CL}"
 BFR="\\r\\033[K"
 HOLD="-"
 set -Eeuo pipefail
-trap 'error_handler $LINENO' ERR
+trap 'error_handler $LINENO "$BASH_COMMAND"' ERR
 function error_handler() {
   local exit_code="$?"
   local line_number="$1"
   local command="$2"
-  local error_message="${RD}[ERROR]${CL} in line ${RD}$line_number${CL}: exit code ${RD}$exit_code${CL}"
+  local error_message="${RD}[ERROR]${CL} in line ${RD}$line_number${CL}: exit code ${RD}$exit_code${CL}: while executing command ${YW}$command${CL}"
   echo -e "\n$error_message\n"
 }
 
@@ -44,8 +51,36 @@ function msg_error() {
   echo -e "${BFR} ${CROSS} ${RD}${msg}${CL}"
 }
 
+msg_info "Setting up Container OS "
+while [ $i -gt 0 ]; do
+  if [ "$(ip addr show | grep 'inet ' | grep -v '127.0.0.1' | awk '{print $2}' | cut -d'/' -f1)" != "" ]; then
+    break
+  fi
+  echo 1>&2 -en "${CROSS}${RD} No Network! "
+  sleep $RETRY_EVERY
+  i=$((i-1))
+done
+
+if [ "$(ip addr show | grep 'inet ' | grep -v '127.0.0.1' | awk '{print $2}' | cut -d'/' -f1)" = "" ]; then
+  echo 1>&2 -e "\n${CROSS}${RD} No Network After $RETRY_NUM Tries${CL}"
+  echo -e " 🖧  Check Network Settings"
+  exit 1
+fi
+msg_ok "Set up Container OS"
+msg_ok "Network Connected: ${BL}$(ip addr show | grep 'inet ' | awk '{print $2}' | cut -d'/' -f1 | tail -n1)${CL}"
+
 set +e
 trap - ERR
+if ping -c 1 -W 1 1.1.1.1 &> /dev/null; then msg_ok "Internet Connected"; else
+  msg_error "Internet NOT Connected"
+    read -r -p "Would you like to continue anyway? <y/N> " prompt
+    if [[ $prompt == "y" || $prompt == "Y" || $prompt == "yes" || $prompt == "Yes" ]]; then
+      echo -e " ⚠️  ${RD}Expect Issues Without Internet${CL}"
+    else
+      echo -e " 🖧  Check Network Settings"
+      exit 1
+    fi
+fi
 
 RESOLVEDIP=$(getent hosts github.com | awk '{ print $1 }')
 if [[ -z "$RESOLVEDIP" ]]; then msg_error "DNS Lookup Failure"; else msg_ok "DNS Resolved github.com to ${BL}$RESOLVEDIP${CL}"; fi