Refactor libespm references out of GameSettings

So it's all contained within Plugin now.

src/backend/game/game_settings.cpp

@@ -96,19 +96,6 @@ GameType GameSettings::Type() const {
   return type_;
 }
 
-libespm::GameId GameSettings::LibespmId() const {
-  if (type_ == GameType::tes4)
-    return libespm::GameId::OBLIVION;
-  else if (type_ == GameType::tes5 || type_ == GameType::tes5se)
-    return libespm::GameId::SKYRIM;
-  else if (type_ == GameType::fo3)
-    return libespm::GameId::FALLOUT3;
-  else if (type_ == GameType::fonv)
-    return libespm::GameId::FALLOUTNV;
-  else
-    return libespm::GameId::FALLOUT4;
-}
-
 std::string GameSettings::Name() const {
   return name_;
 }

src/backend/game/game_settings.h

@@ -29,7 +29,6 @@
 #include <list>
 
 #include <boost/filesystem.hpp>
-#include <libespm/GameId.h>
 #include <yaml-cpp/yaml.h>
 
 #include "loot/enum/game_type.h"
@@ -45,7 +44,6 @@ public:
   bool operator == (const GameSettings& rhs) const;  //Compares names and folder names.
 
   GameType Type() const;
-  libespm::GameId LibespmId() const;
   std::string Name() const;  //Returns the game's name, eg. "TES IV: Oblivion".
   std::string FolderName() const;
   std::string Master() const;

src/backend/plugin/plugin.cpp

@@ -42,7 +42,7 @@ using std::string;
 namespace loot {
 Plugin::Plugin(const Game& game, const std::string& name, const bool headerOnly) :
   PluginMetadata(name),
-  libespm::Plugin(game.LibespmId()),
+  libespm::Plugin(Plugin::GetLibespmGameId(game.Type())),
   isEmpty_(true),
   isActive_(false),
   loadsArchive_(false),
@@ -180,7 +180,7 @@ bool Plugin::IsValid(const std::string& filename, const Game& game) {
   if (!boost::filesystem::exists(filepath) && boost::filesystem::exists(filepath.string() + ".ghost"))
     filepath += ".ghost";
 
-  if (libespm::Plugin::isValid(filepath, game.LibespmId(), true))
+  if (libespm::Plugin::isValid(filepath, GetLibespmGameId(game.Type()), true))
     return true;
 
   BOOST_LOG_TRIVIAL(warning) << "The .es(p|m) file \"" << filename << "\" is not a valid plugin.";
@@ -249,4 +249,17 @@ void Plugin::CheckInstallValidity(const Game& game) {
 bool Plugin::LoadsArchive() const {
   return loadsArchive_;
 }
+
+libespm::GameId Plugin::GetLibespmGameId(GameType gameType) {
+  if (gameType == GameType::tes4)
+    return libespm::GameId::OBLIVION;
+  else if (gameType == GameType::tes5 || gameType == GameType::tes5se)
+    return libespm::GameId::SKYRIM;
+  else if (gameType == GameType::fo3)
+    return libespm::GameId::FALLOUT3;
+  else if (gameType == GameType::fonv)
+    return libespm::GameId::FALLOUTNV;
+  else
+    return libespm::GameId::FALLOUT4;
+}
 }

src/backend/plugin/plugin.h

@@ -34,6 +34,7 @@
 #include <libespm/Plugin.h>
 
 #include "backend/metadata/plugin_metadata.h"
+#include "loot/enum/game_type.h"
 
 namespace loot {
 class Game;
@@ -66,6 +67,7 @@ public:
 
   bool operator < (const Plugin& rhs) const;
 private:
+  static libespm::GameId GetLibespmGameId(GameType gameType);
   bool isEmpty_;  // Does the plugin contain any records other than the TES4 header?
   bool isActive_;
   bool loadsArchive_;