Mod loading, disgusting struct parsing

core/interfaces.go

@@ -0,0 +1,15 @@
+package core
+// UpdateParsers stores all the update parsers that packwiz can use. Add your own update systems to this map.
+var UpdateParsers map[string]UpdateParser = make(map[string]UpdateParser)
+
+// UpdateParser takes an unparsed interface{}, and returns an Updater for a mod file
+type UpdateParser interface {
+	ParseUpdate(interface{}) (Updater, error)
+}
+
+// Updater checks for and does updates on a mod
+type Updater interface {
+	// DoUpdate returns true if an update was done, false otherwise
+	DoUpdate(Mod) (bool, error)
+}
+