From 6e1af3a3a061ab1c5227248dba44f9a185b6debb Mon Sep 17 00:00:00 2001
From: Christian Rotzoll <christian@geektank.de>
Date: Mon, 15 Apr 2019 14:59:53 +0100
Subject: [PATCH] #437 basic background backup script

---
 home.admin/_background.sh | 69 +++++++++++++++++++++++++++------------
 1 file changed, 48 insertions(+), 21 deletions(-)

diff --git a/home.admin/_background.sh b/home.admin/_background.sh
index bb4c95a6d..33beaf659 100644
--- a/home.admin/_background.sh
+++ b/home.admin/_background.sh
@@ -151,6 +151,33 @@ do
   fi
 
 
+  ###############################
+  # SCB Monitoring
+  ###############################
+
+  # check every 1min
+  recheckSCB=$(($counter % 60))
+  if [ ${recheckSCB} -eq 1 ]; then
+    echo "SCB Monitoring ..."
+    # check if channel.backup exists
+    scbExists=$(sudo ls /mnt/hdd/lnd/data/chain/${network}/${chain}net/channel.backup 2>/dev/null | grep -c 'channel.backup')
+    if [ ${scbExists} -eq 1 ]; then
+      echo "Found Channel Backup File .. check if changed .."
+      md5checksumORG=$(sudo md5sum /mnt/hdd/lnd/data/chain/${network}/${chain}net/channel.backup 2>/dev/null | head -n1 | cut -d " " -f1)
+      md5checksumCPY=$(sudo md5sum /home/admin/.lnd/data/chain/${network}/${chain}net/channel.backup 2>/dev/null | head -n1 | cut -d " " -f1)
+      if [ "${md5checksumORG}" != "${md5checksumCPY}" ]; then
+        echo "--> Channel Backup File changed"
+        sudo mkdir -p /home/admin/.lnd/data/chain/${network}/${chain}net/ 2>/dev/null
+        sudp cp /mnt/hdd/lnd/data/chain/${network}/${chain}net/channel.backup /home/admin/.lnd/data/chain/${network}/${chain}net/channel.backup
+        echo "OK channel.backup copied to '/home/admin/.lnd/data/chain/${network}/${chain}net/channel.backup'"
+      else
+        echo "Channel Backup File not changed."
+      fi
+    else
+      echo "No Channel Backup File .."
+    fi
+  fi
+
   ###############################
   # LND MONITOR LOST SYNC
   ###############################
@@ -159,78 +186,78 @@ do
   recheckSync=$(($counter % 300))
   if [ ${recheckSync} -eq 1 ]; then
     source ${configFile}
-    echo "LND MONITOR LOST SYNC ..."
+    #echo "LND MONITOR LOST SYNC ..."
     lndSynced=$(sudo -u bitcoin /usr/local/bin/lncli --chain=${network} --network=${chain}net getinfo 2>/dev/null | jq -r '.synced_to_chain' | grep -c true)
-    echo "lndSynced(${lndSynced})"
-    echo "syncedSince(${syncedSince})"
-    echo "lastSyncState(${lastSyncState})"
+    #echo "lndSynced(${lndSynced})"
+    #echo "syncedSince(${syncedSince})"
+    #echo "lastSyncState(${lastSyncState})"
     if [ ${lndSynced} -eq ${lastSyncState} ]; then
 
       echo "no sync change"
       if [ ${lndSynced} -eq 1 ]; then
-        echo "all is good - LND still in sync now for:"
+        #echo "all is good - LND still in sync now for:"
         actualSecondsTimestamp=$(date +%s)
         secondsInSync=$(echo "${actualSecondsTimestamp}-"${syncedSince} | bc)
-        echo "${secondsInSync} seconds"
+        #echo "${secondsInSync} seconds"
 
         # when >10min in sync
-        if [ ${secondsInSync} -gt 600 ]; then
-          echo "LND in sync for longer then 10 minutes"
+        if [ ${secondsInSync} -gt 3600 ]; then
+          #echo "LND in sync for longer then 1 hour"
           if [ "${backupTorrentSeeding}" == "on" ]; then
-            echo "Backup Torrent Seeding is ON - check if already running"
+            #echo "Backup Torrent Seeding is ON - check if already running"
             source <(sudo -u admin /home/admin/50torrentHDD.sh status)
             if [ "${baseSeeding}" == "0" ] || [ "${updateSeeding}" == "0" ]; then
               echo "---> STARTING Backup Torrent Seeding"
               sudo -u admin /home/admin/50torrentHDD.sh backup-torrent-hosting
             else
-              echo "Backup Torrent Seeding - already running"
+              #echo "Backup Torrent Seeding - already running"
             fi
           else
-            echo "Backup Torrent Seeding is OFF"
+            #echo "Backup Torrent Seeding is OFF"
           fi
         fi
 
       else
-        echo "still not in sync"
+        #echo "still not in sync"
         if [ ${syncedSince} -gt 0 ]; then
 
-          echo "was in sync at least once since rinning but lost now for:"
+          #echo "was in sync at least once since rinning but lost now for:"
           actualSecondsTimestamp=$(date +%s)
           secondsOutOfSync=$(echo "${actualSecondsTimestamp}-"${syncedSince} | bc)
-          echo "${secondsOutOfSync} seconds"
+          #echo "${secondsOutOfSync} seconds"
 
           # when >10min out of sync
           if [ ${secondsOutOfSync} -gt 600 ]; then
-            echo "! LND fell out of sync for longer then 10 minutes !"
+            #echo "! LND fell out of sync for longer then 10 minutes !"
             if [ "${backupTorrentSeeding}" == "on" ]; then
-              echo "Backup Torrent Seeding is ON - check if still running"
+              #echo "Backup Torrent Seeding is ON - check if still running"
               source <(sudo -u admin /home/admin/50torrentHDD.sh status)
               if [ "${baseSeeding}" == "1" ] || [ "${updateSeeding}" == "1" ]; then
                 echo "---> STOPPING Backup Torrent Seeding"
                 sudo -u admin /home/admin/50torrentHDD.sh stop
               else
-                echo "No Backup Torrent Seeding - already stopped"
+                #echo "No Backup Torrent Seeding - already stopped"
               fi
             else
-              echo "Backup Torrent Seeding is OFF"
+              #echo "Backup Torrent Seeding is OFF"
             fi
           fi
 
           # when >1h out of sync
           if [ ${secondsOutOfSync} -gt 3600 ]; then
-            echo "!!!! LND fell out of sync for longer then 1 hour !!!"
+            # echo "!!!! LND fell out of sync for longer then 1 hour !!!"
             # TODO: When auto-unlock is ON --> consider implementing restart (this sometimes help)
           fi
 
         else
-          echo "LND was never in sync since since started (could be multiple reasons - dont act)"
+          #echo "LND was never in sync since since started (could be multiple reasons - dont act)"
         fi
       fi
 
     else
       echo "sync change detected"
       if [ ${lastSyncState} -eq 1 ] && [ ${lndSynced} -eq 0 ]; then
-        echo "--> LND SNC LOST"
+        echo "--> LND SYNC LOST"
       else
         if [ ${syncedSince} -eq 0 ]; then
           echo "--> LND SYNC GAINED"