lnd autounlock if testnet and signet (#3212)

* lnd autounlock if testnet and signet

* check for header in the lnd.conf

* fix variables and improve output

* make grep more robust

* delete autounlock if passwordFile not present

home.admin/config.scripts/lnd.check.sh

@@ -61,6 +61,14 @@ if [ "$1" == "prestart" ]; then
     /home/admin/config.scripts/blitz.systemd.sh log lightning STARTED
   fi
 
+  ##### APPLICATION OPTIONS SECTION #####
+
+  # delete autounlock if passwordFile not present
+  passwordFile="/mnt/hdd/lnd/data/chain/${network}/${CHAIN}/password.info"
+  if ! ls ${passwordFile} &>/dev/null; then
+    sed -i "/^wallet-unlock-password-file=/d" ${lndConfFile}
+  fi
+
   ##### BITCOIN OPTIONS SECTION #####
 
   # [bitcoin]

home.admin/config.scripts/lnd.install.sh

@@ -433,6 +433,26 @@ alias ${netprefix}lndconf=\"sudo nano /home/bitcoin/.lnd/${netprefix}lnd.conf\"\
       fi
   fi
 
+  if [ "${CHAIN}" != "mainnet" ]; then
+    echo "# Setting autounlock for ${CHAIN}"
+    source <(/home/admin/config.scripts/network.aliases.sh getvars lnd ${CHAIN})
+    passwordFile="/mnt/hdd/lnd/data/chain/${network}/${CHAIN}/password.info"
+    # create passwordfile
+    if ! sudo ls ${passwordFile} &>/dev/null; then
+      echo "raspiblitz" | sudo -u bitcoin tee ${passwordFile} 1>/dev/null
+    fi
+    # add autounlock to lnd.conf
+    if ! grep "^wallet-unlock-password-file=${passwordFile}" < ${lndConfFile}; then
+      if grep "^\[Application Options\]" < ${lndConfFile} &>/dev/null; then
+        # add under header
+        sudo sed -i "/^\[Application Options\]$/awallet-unlock-password-file=${passwordFile}" ${lndConfFile}
+      else
+        # just append if no headers used
+        echo "wallet-unlock-password-file=${passwordFile}" | sudo -u bitcoin tee ${lndConfFile}
+      fi
+    fi
+  fi
+
   echo
   echo "# The installed LND version is: $(sudo -u bitcoin /usr/local/bin/lnd --version)"
   echo

home.admin/config.scripts/network.aliases.sh

@@ -18,11 +18,15 @@ if [ $# -eq 0 ] || [ "$1" = "-h" ] || [ "$1" = "-help" ];then
   exit 1
 fi
 
-source /home/admin/raspiblitz.info 
-source /mnt/hdd/raspiblitz.conf 2>/dev/null
-
 if [ "$1" = getvars ];then
-  
+
+  source /home/admin/raspiblitz.info
+  source /mnt/hdd/raspiblitz.conf 2>/dev/null
+
+  if [ ${#network} -eq 0 ];then
+    network=bitcoin
+  fi
+
   # LNTYPE is: lnd | cl
   if [ $# -gt 1 ];then
     LNTYPE=$2