Fix and enhance update checker

_versioncheck.lua

@@ -0,0 +1,47 @@
+function parseVersion(version)
+    local parts = {}
+    for num in version:gmatch("%d+") do
+        table.insert(parts, tonumber(num))
+    end
+    return parts
+end
+
+function compareVersions(current, newest)
+    local currentParts = parseVersion(current)
+    local newestParts = parseVersion(newest)
+    for i = 1, math.max(#currentParts, #newestParts) do
+        local c = currentParts[i] or 0
+        local n = newestParts[i] or 0
+        if c < n then return -1
+        elseif c > n then return 1 end
+    end
+    return 0 -- equal
+end
+
+function CheckBridgeVersion()
+    if IsDuplicityVersion() then
+		CreateThread(function()
+			Wait(4000)
+			local currentVersionRaw = GetResourceMetadata("jim_bridge", 'version')
+			PerformHttpRequest('https://raw.githubusercontent.com/jimathy/jim_bridge/master/version.txt', function(err, newestVersionRaw, headers)
+				if not newestVersionRaw then
+					print("^1Unable to run version check for ^7'^3jim_bridge^7' (^3"..currentVersionRaw.."^7)")
+					return
+				end
+
+				newestVersionRaw = newestVersionRaw:match("[^\r\n]+")
+				local compareResult = compareVersions(currentVersionRaw, newestVersionRaw)
+
+				if compareResult == 0 then
+					print("^7'^3jim_bridge^7' - ^2You are running the latest version^7. ^7(^3"..currentVersionRaw.."^7)")
+				elseif compareResult < 0 then
+					print("^7'^3jim_bridge^7' - ^1You are running an outdated version^7! ^7(^3"..currentVersionRaw.."^7 → ^3"..newestVersionRaw.."^7)")
+				else
+					print("^7'^3jim_bridge^7' - ^5You are running a newer version ^7(^3"..currentVersionRaw.."^7 ← ^3"..newestVersionRaw.."^7)")
+				end
+			end)
+		end)
+	end
+end
+
+CheckBridgeVersion()