add missing server path script

Author: joaopluigi

scripts/server_path.lua

@@ -0,0 +1,16 @@
+local PathFinder = require("eca.path_finder")
+
+local custom_path = _G.arg[1] or ""
+local path_finder = PathFinder:new()
+local path
+
+local ok, err = pcall(function()
+  path = path_finder:find(custom_path)
+end)
+
+if not ok then
+  io.stderr:write(tostring(err))
+  os.exit(1)
+end
+
+io.stdout:write(path)