Add the select_best_mirror function to select the best mirror for y…

…our location

Dockerfile

@@ -8,7 +8,7 @@ RUN apt-get update && \
         curl \
         ca-certificates \
         iproute2 \
-        iputils-ping \
+        bc \
         xz-utils \
         bzip2 \
         sudo \

install.sh

@@ -57,20 +57,19 @@ select_best_mirror() {
     )
 
     local best_mirror=""
-    local lowest_ping=9999
+    local lowest_time=9999
 
     for mirror in "${mirrors[@]}"; do
-        local ping_result=$(ping -c 1 -W 1 "$mirror" 2>/dev/null | grep "time=" | awk -F'=' '{print $4}' | cut -d' ' -f1)
+        local time_result=$(curl -o /dev/null -s -w "%{time_total}" "https://$mirror" 2>/dev/null)
 
-        if [[ -z "$ping_result" ]]; then
-            echo "Could not ping $mirror"
+        if [[ -z "$time_result" ]]; then
             continue
         fi
 
-        local ping_time=$(printf "%.0f" "$ping_result")
-                
-        if (( ping_time > 0 && ping_time < lowest_ping )); then
-            lowest_ping=$ping_time
+        local connect_time=$(printf "%.0f" $(echo "$time_result * 1000" | bc))
+
+        if (( connect_time > 0 && connect_time < lowest_time )); then
+            lowest_time=$connect_time
             best_mirror=$mirror
         fi
     done