add script to enable flashlights

technic-enable-flashlights.sh

@@ -0,0 +1,34 @@
+#!/bin/sh
+
+
+#region paste this part into terminal to get some great environment variables
+if [ ! -f minetestenv.rc ]; then
+  if [ -f "$HOME/GitHub/EnlivenMinetest" ]; then
+    cd "$HOME/GitHub/EnlivenMinetest"
+  elif [ -f "$HOME/git/EnlivenMinetest" ]; then
+    cd "$HOME/git/EnlivenMinetest"
+  elif [ -f "$HOME/Documents/GitHub/EnlivenMinetest" ]; then
+    cd "$HOME/Documents/GitHub/EnlivenMinetest"
+  fi
+fi
+if [ ! -f minetestenv.rc ]; then
+  echo "ERROR: Nothing done since missing minetestenv.rc (must be in same directory). Press Ctrl-C or allow this session to exit."
+  sleep 5
+  exit 1
+fi
+source minetestenv.rc
+#endregion paste this part into terminal to get some great environment variables
+
+
+#enable flashlights by replacing
+#enable_flashlight = "false",
+#with
+#enable_flashlight = "true",
+#such as in: /usr/local/share/minetest/games/ENLIVEN/mods/technic/technic/config.lua
+patch_dest="$MT_MINETEST_GAME_PATH/mods/technic/technic/config.lua"
+if [ -f "$patch_dest" ]; then
+  sudo sed -i '/enable_flashlight/c\\tenable_flashlight = "true",' "$patch_dest"
+else
+  echo "ERROR: cannot enable flashlight since missing $patch_dest"
+fi
+#as per Todd's answer on https://stackoverflow.com/questions/11245144/replace-whole-line-containing-a-string-using-sed