glava-config build process and initial widget layout

glava-config/main.lua

@@ -0,0 +1,31 @@
+local window = require("glava-config.window")
+
+local function dependency(name)
+  if package.loaded[name] then
+    return
+  else
+    for _, searcher in ipairs(package.searchers or package.loaders) do
+      local loader = searcher(name)
+      if type(loader) == 'function' then
+        package.preload[name] = loader
+        return
+      end
+    end
+    print("Dependency \"" .. name .. "\" is not installed.")
+    print("Please install it through your package manager or Lua distribution.")
+    os.exit(1)
+  end
+end
+
+local main = {}
+
+function main.entry(prog, ...)
+    dependency("lgi")
+    dependency("lfs")
+    if glava.resource_path:sub(glava.resource_path:len()) ~= "/" then
+      glava.resource_path = glava.resource_path .. "/"
+    end
+    window()
+end
+
+return main