Show LND Channel DB size on Lightning page

rootfs/standard/var/www/mynode/lightning_info.py

@@ -447,6 +447,17 @@ def get_lnd_channel_backup_file():
 def lnd_channel_backup_exists():
     return os.path.isfile( get_lnd_channel_backup_file() )
 
+def lnd_get_channel_db_size():
+    path = "mainnet"
+    if is_testnet_enabled():
+        path = "testnet"
+    size = "???"
+    try:
+        size = subprocess.check_output("ls -lsah /mnt/hdd/mynode/lnd/data/graph/"+path+"/channel.db | awk '{print $6}'", shell=True)
+    except:
+        size = "ERR"
+    return size
+
 def get_lnd_status():
     #if not lnd_wallet_exists():
     #    return "Please create wallet..."

rootfs/standard/var/www/mynode/lnd.py

@@ -206,6 +206,7 @@ def page_lnd():
         "pubkey": pubkey,
         "uri": uri,
         "ip": ip,
+        "channel_db_size": lnd_get_channel_db_size(),
         "watchtower_enabled": is_watchtower_enabled(),
         "lit_password": get_lnd_lit_password(),
         "lnd_deposit_address": lnd_deposit_address,

rootfs/standard/var/www/mynode/templates/lnd.html

@@ -208,6 +208,10 @@
                             <th>Num Peers</th>
                             <td>{{num_peers}}</td>
                         </tr>
+                        <tr>
+                            <th>DB Size</th>
+                            <td>{{channel_db_size}}</td>
+                        </tr>
                         {% if is_testnet_enabled %}
                         <tr>
                             <th>Network</th>