Add Statically.io CDN as middle-tier fallback

- Add CDN fallback between GitHub and local backup
- Update curl_to_dir() in lib.sh to try cdn.statically.io
- Update fetch_lib.sh with CDN fallback
- Update nextcloud_update.sh initial source with CDN fallback
- Statically.io caches main branch for 1 day (helps with rate limits)
- Fallback order: GitHub → Statically CDN → Local backup

Author: enoch85

lib.sh

@@ -627,6 +627,16 @@ fi
     then
         if ! curl -sfL "$1"/"$2" -o "$3"/"$2"
         then
+            # Try Statically.io CDN if this is a GitHub URL
+            if [[ "$1" == *"raw.githubusercontent.com"* ]]
+            then
+                local cdn_url="${1/raw.githubusercontent.com/cdn.statically.io\/gh}"
+                cdn_url="${cdn_url//\/nextcloud\/vm\//\/nextcloud\/vm\/main\/}"
+                if curl -sfL "$cdn_url"/"$2" -o "$3"/"$2"
+                then
+                    return 0
+                fi
+            fi
             # Try local backup
             try_local_backup "$1" "$2" "$3"
         fi
@@ -636,6 +646,17 @@ fi
         do
             if [ "$retries" -ge 10 ]
             then
+                # Try Statically.io CDN if this is a GitHub URL
+                if [[ "$1" == *"raw.githubusercontent.com"* ]]
+                then
+                    local cdn_url="${1/raw.githubusercontent.com/cdn.statically.io\/gh}"
+                    cdn_url="${cdn_url//\/nextcloud\/vm\//\/nextcloud\/vm\/main\/}"
+                    if curl -sfL "$cdn_url"/"$2" -o "$3"/"$2"
+                    then
+                        print_text_in_color "$IGreen" "✓ Used Statically.io CDN"
+                        break
+                    fi
+                fi
                 # Exhausted retries, try local backup
                 if try_local_backup "$1" "$2" "$3"
                 then

nextcloud_update.sh

@@ -11,7 +11,23 @@
 true
 SCRIPT_NAME="Nextcloud Update Script"
 # shellcheck source=lib.sh
-source <(curl -sL https://raw.githubusercontent.com/nextcloud/vm/main/lib.sh)
+if ! source <(curl -sL https://raw.githubusercontent.com/nextcloud/vm/main/lib.sh)
+then
+    # Try Statically.io CDN
+    if source <(curl -sL https://cdn.statically.io/gh/nextcloud/vm/main/lib.sh)
+    then
+        echo "✓ Used Statically.io CDN"
+    # Try local backup
+    elif [ -f /var/scripts/vm-repo-backup/lib.sh ]
+    then
+        echo "⚠ GitHub unavailable, using local backup: lib.sh"
+        # shellcheck source=lib.sh
+        source /var/scripts/vm-repo-backup/lib.sh
+    else
+        echo "Failed to download lib.sh from all sources. Exiting."
+        exit 1
+    fi
+fi
 
 # Get all needed variables from the library
 ncdb

static/fetch_lib.sh

@@ -22,8 +22,12 @@ if ! [ -f /var/scripts/lib.sh ]
 then
     if ! curl -sfL https://raw.githubusercontent.com/nextcloud/vm/main/lib.sh -o /var/scripts/lib.sh
     then
+        # Try Statically.io CDN
+        if curl -sfL https://cdn.statically.io/gh/nextcloud/vm/main/lib.sh -o /var/scripts/lib.sh
+        then
+            print_text_in_color "$IGreen" "✓ Used Statically.io CDN"
         # Try local backup
-        if [ -f /var/scripts/vm-repo-backup/lib.sh ]
+        elif [ -f /var/scripts/vm-repo-backup/lib.sh ]
         then
             print_text_in_color "$IYellow" "⚠ GitHub unavailable, using local backup: lib.sh"
             cp /var/scripts/vm-repo-backup/lib.sh /var/scripts/lib.sh
@@ -37,8 +41,12 @@ elif ! [ -f /var/scripts/nextcloud-startup-script.sh ]
 then
     if ! curl -sfL https://raw.githubusercontent.com/nextcloud/vm/main/lib.sh -o /var/scripts/lib.sh
     then
+        # Try Statically.io CDN
+        if curl -sfL https://cdn.statically.io/gh/nextcloud/vm/main/lib.sh -o /var/scripts/lib.sh
+        then
+            print_text_in_color "$IGreen" "✓ Used Statically.io CDN"
         # Try local backup
-        if [ -f /var/scripts/vm-repo-backup/lib.sh ]
+        elif [ -f /var/scripts/vm-repo-backup/lib.sh ]
         then
             print_text_in_color "$IYellow" "⚠ GitHub unavailable, using local backup: lib.sh"
             cp /var/scripts/vm-repo-backup/lib.sh /var/scripts/lib.sh