refactor: patch only necessary update manager sections upon webif install

Signed-off-by: Dominik Willner th33xitus@gmail.com

scripts/mainsail.sh

@@ -74,9 +74,12 @@ function install_mainsail(){
   ### symlink nginx log
   symlink_webui_nginx_log "mainsail"
 
-  ### install mainsail/fluidd
+  ### install mainsail
   mainsail_setup
 
+  ### add mainsail to the update manager in moonraker.conf
+  patch_mainsail_update_manager
+
   ### install mjpg-streamer
   [ "${install_mjpg_streamer}" = "true" ] && install_mjpg-streamer
 
@@ -490,4 +493,25 @@ function enable_mainsail_remotemode(){
   [ ! -f "${MAINSAIL_DIR}/config.json" ] && return
   rm -f "${MAINSAIL_DIR}/config.json"
   echo -e "{\n    \"remoteMode\":true\n}" >> "${MAINSAIL_DIR}/config.json"
+}
+
+function patch_mainsail_update_manager(){
+  local moonraker_configs
+  moonraker_configs=$(find "$(get_klipper_cfg_dir)" -type f -name "moonraker.conf")
+  for conf in ${moonraker_configs}; do
+    status_msg "Adding Mainsail to update manager in file:\n       ${conf}"
+    ### add new line to conf if it doesn't end with one
+    [[ $(tail -c1 "${conf}" | wc -l) -eq 0 ]] && echo "" >> "${conf}"
+    ### add Mainsails update manager section to moonraker.conf
+    if grep -Eq "[update_manager mainsail]" "${conf}"; then
+      /bin/sh -c "cat >> ${conf}" << MOONRAKER_CONF
+
+[update_manager mainsail]
+type: web
+channel: stable
+repo: mainsail-crew/mainsail
+path: ~/mainsail
+MOONRAKER_CONF
+    fi
+  done
 }