luacheck and fixes

.github/workflows/luacheck.yml

@@ -0,0 +1,17 @@
+name: luacheck
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: apt
+      run: sudo apt-get install -y luarocks
+    - name: luacheck install
+      run: luarocks install --local luacheck
+    - name: luacheck run
+      run: $HOME/.luarocks/bin/luacheck ./

.luacheckrc

@@ -0,0 +1,20 @@
+unused_args = false
+allow_defined_top = true
+
+globals = {
+	"telemosaic"
+}
+
+read_globals = {
+	-- Stdlib
+	string = {fields = {"split"}},
+	table = {fields = {"copy", "getn"}},
+
+	-- Minetest
+	"minetest",
+	"vector", "ItemStack",
+	"dump",
+
+	-- Deps
+	"default"
+}

teleport.lua

@@ -81,7 +81,10 @@ local function extender_place(placepos, placer, itemstack, pointed_thing)
 
                     else
                         local count = math.ceil(dist - (C.beacon_range + extended))
-                        minetest.chat_send_player(placer:get_player_name(), "You still need to add extensions for "..count.." nodes" )
+                        minetest.chat_send_player(
+                          placer:get_player_name(),
+                          "You still need to add extensions for "..count.." nodes"
+                        )
 
                     end
                 end
@@ -229,7 +232,7 @@ function do_teleport(pos, player)
 				recent_teleports[name] = nil
 			end,
 			player_name)
-		else
+		-- else
 		-- beacon is in error, one way or another.
 		-- but don't swap it out - we won't get it back otherwise!
 		end
@@ -403,7 +406,11 @@ for num, strength in ipairs(strengths) do
                     string.format('telemosaic_extender_%s.png^[colorize:%s', strength, c.value),
                 },
                 paramtype = 'light',
-                groups = { cracky = 2, [string.format('telemosaic_extender_%s', strength)] = 1, not_in_creative_inventory = 1 },
+                groups = {
+                  cracky = 2,
+                  [string.format('telemosaic_extender_%s', strength)] = 1,
+                  not_in_creative_inventory = 1
+                },
                 after_place_node = extender_place,
                 after_dig_node   = extender_dig,
             })