Rework depedency management in premake lua scripts

tools/scripts/linking.lua

@@ -0,0 +1,48 @@
+-- Functions for linking projects
+Links = {}
+
+function Links:create()
+
+    list = {
+        stack = {},
+        dependencies = {}
+    }
+
+    function list:linkto(project)
+        local projectName = project:name()
+        for i, dependency in ipairs(self.stack) do
+            if dependency == projectName then
+                print "Circular dependency detected:"
+                local dependencyList = projectName
+                for j = i + 1, #self.stack do
+                    dependencyList = dependencyList .. " -> " .. self.stack[j]
+                end
+                dependencyList = dependencyList .. " -> " .. projectName
+                print(dependencyList)
+                os.exit(1)
+            end
+        end
+
+        table.insert(self.stack, projectName)
+        project:link(self)
+        table.remove(self.stack)
+    end
+
+    function list:add(name)
+        for i = 1, #self.dependencies do
+            if self.dependencies[i] == name then
+                table.remove(self.dependencies, i)
+                i = i - 1
+            end
+        end
+        table.insert(self.dependencies, name)
+    end
+
+    function list:linkall()
+        for i, dependency in ipairs(self.dependencies) do
+            links(dependency)
+        end
+    end
+
+    return list
+end