fix: Deduce mirror from URL

* fix: Deduce mirror from URL

src/install.sh

@@ -21,8 +21,19 @@ fi
 # Display wait message
 /run/server.sh 5000 install &
 
-# Detect country
+DL=""
 COUNTRY=""
+DL_CHINA="https://cndl.synology.cn/download/DSM"
+DL_GLOBAL="https://global.synologydownload.com/download/DSM"
+
+[[ "${URL,,}" == *"cndl.synology"* ]] && DL="$DL_CHINA"
+[[ "${URL,,}" == *"global.synology"* ]] && DL="$DL_GLOBAL"
+
+if [ -z "$DL" ]; then
+
+  info "Install: Selecting download mirror..."
+
+  # Detect country
   { JSON=$(curl -sfk https://ipinfo.io/json); rc=$?; } || :
 
   if (( rc == 0 )); then
@@ -40,13 +51,14 @@ fi
 
   # Select download mirror based on country
   if [ "$COUNTRY" == "CN" ]; then
-  DL="https://cndl.synology.cn/download/DSM"
+    DL="$DL_CHINA"
   else
-  DL="https://global.synologydownload.com/download/DSM"
+    DL="$DL_GLOBAL"
+  fi
 fi
 
-# Select default version based on architecture
 if [ -z "$URL" ]; then
+  # Select default version based on architecture
   if [ "$ARCH" == "amd64" ]; then
     URL="$DL/release/7.2.1/69057-1/DSM_VirtualDSM_69057.pat"
   else
@@ -68,6 +80,8 @@ rm -f "$STORAGE"/"$BASE".agent
 rm -f "$STORAGE"/"$BASE".boot.img
 rm -f "$STORAGE"/"$BASE".system.img
 
+info "Install: Checking filesystem..."
+
 [[ "${DEBUG}" == [Yy1]* ]] && set -x
 
 # Check filesystem