Merge pull request #84 from OpenVicProject/move/vic2-path-search

1 files changed, 0 insertions, 305 deletions

diff --git a/src/openvic-simulation/dataloader/Dataloader.cpp b/src/openvic-simulation/dataloader/Dataloader.cpp
index 6bf43f6..6aee67d 100644
--- a/src/openvic-simulation/dataloader/Dataloader.cpp
+++ b/src/openvic-simulation/dataloader/Dataloader.cpp
@@ -11,16 +11,6 @@
 #include "openvic-simulation/utility/ConstexprIntToStr.hpp"
 #include "openvic-simulation/utility/Logger.hpp"
 
-#ifdef _WIN32
-#include <Windows.h>
-
-#include "Dataloader_Windows.hpp"
-#endif
-
-#if defined(__APPLE__) && defined(__MACH__)
-#include <TargetConditionals.h>
-#endif
-
 using namespace OpenVic;
 using namespace OpenVic::NodeTools;
 using namespace ovdl;
@@ -42,301 +32,6 @@ static constexpr bool path_equals_case_insensitive(std::string_view lhs, std::st
 	return std::equal(lhs.begin(), lhs.end(), rhs.begin(), rhs.end(), ichar_equals);
 }
 
-// Windows and Mac by default act like case insensitive filesystems
-static constexpr bool path_equals(std::string_view lhs, std::string_view rhs) {
-#if defined(FILESYSTEM_CASE_INSENSITIVE)
-	return path_equals_case_insensitive(lhs, rhs);
-#else
-	return std::equal(lhs.begin(), lhs.end(), rhs.begin(), rhs.end());
-#endif
-}
-
-template<typename T>
-concept is_filename = std::same_as<T, std::filesystem::path> || std::convertible_to<T, std::string_view>;
-
-static bool filename_equals(const is_filename auto& lhs, const is_filename auto& rhs) {
-	auto left = [&lhs] {
-		if constexpr (std::same_as<std::decay_t<decltype(lhs)>, std::filesystem::path>) {
-			return lhs.filename().string();
-		} else {
-			return lhs;
-		}
-	}();
-	auto right = [&rhs] {
-		if constexpr (std::same_as<std::decay_t<decltype(rhs)>, std::filesystem::path>) {
-			return rhs.filename().string();
-		} else {
-			return rhs;
-		}
-	}();
-	return path_equals(left, right);
-}
-
-static fs::path _search_for_game_path(fs::path hint_path = {}) {
-	// Apparently max amount of steam libraries is 8, if incorrect please correct it to the correct max amount
-	static constexpr int max_amount_of_steam_libraries = 8;
-	static constexpr std::string_view Victoria_2_folder = "Victoria 2";
-	static constexpr std::string_view v2_game_exe = "v2game.exe";
-	static constexpr std::string_view steamapps = "steamapps";
-	static constexpr std::string_view libraryfolders = "libraryfolders.vdf";
-	static constexpr std::string_view vic2_appmanifest = "appmanifest_42960.acf";
-	static constexpr std::string_view common_folder = "common";
-
-	std::error_code error_code;
-
-	// Don't waste time trying to search for Victoria 2 when supplied a valid looking Victoria 2 game directory
-	if (filename_equals(Victoria_2_folder, hint_path)) {
-		if (fs::is_regular_file(hint_path / v2_game_exe, error_code)) {
-			return hint_path;
-		}
-	}
-
-	const bool hint_path_was_empty = hint_path.empty();
-	if (hint_path_was_empty) {
-#if defined(_WIN32)
-		static const fs::path registry_path =
-			Windows::ReadRegValue<char>(HKEY_LOCAL_MACHINE, "SOFTWARE\\WOW6432Node\\Paradox Interactive\\Victoria 2", "path");
-
-		if (!registry_path.empty()) {
-			return registry_path;
-		}
-
-#pragma warning(push)
-#pragma warning(disable : 4996)
-		static const fs::path prog_files = std::string(std::getenv("ProgramFiles"));
-		hint_path = prog_files / "Steam";
-		if (!fs::is_directory(hint_path, error_code)) {
-			static const fs::path prog_files_x86 = std::string(std::getenv("ProgramFiles(x86)"));
-			hint_path = prog_files_x86 / "Steam";
-			if (!fs::is_directory(hint_path, error_code)) {
-				Logger::warning("Could not find path for Steam installation on Windows.");
-				return "";
-			}
-		}
-#pragma warning(pop)
-		// Cannot support Android
-		// Only FreeBSD currently unofficially supports emulating Linux
-#elif (defined(__linux__) && !defined(__ANDROID__)) || defined(__FreeBSD__)
-		static const fs::path home = std::getenv("HOME");
-		hint_path = home / ".steam" / "steam";
-		if (fs::is_symlink(hint_path, error_code)) {
-			hint_path = fs::read_symlink(hint_path, error_code);
-		} else if (!fs::is_directory(hint_path, error_code)) {
-			hint_path = home / ".local" / "share" / "Steam";
-			if (!fs::is_directory(hint_path, error_code)) {
-#ifdef __FreeBSD__
-				Logger::warning("Could not find path for Steam installation on FreeBSD.");
-#else
-				Logger::warning("Could not find path for Steam installation on Linux.");
-#endif
-				return "";
-			}
-		}
-		// Support only Mac, cannot support iOS
-#elif (defined(__APPLE__) && defined(__MACH__)) && TARGET_OS_MAC == 1
-		static const fs::path home = std::getenv("HOME");
-		hint_path = home / "Library" / "Application Support" / "Steam";
-		if (!fs::is_directory(hint_path, error_code)) {
-			Logger::warning("Could not find path for Steam installation on Mac.");
-			return "";
-		}
-		// All platforms that reach this point do not seem to even have unofficial Steam support
-#else
-		Logger::warning("Could not find path for Steam installation on unsupported platform.");
-#endif
-	}
-
-	// Could not determine Steam install on platform
-	if (hint_path.empty()) {
-		return "";
-	}
-
-	// Supplied path was useless, ignore hint_path
-	if (!hint_path_was_empty && !fs::exists(hint_path, error_code)) {
-		return _search_for_game_path();
-	}
-
-	// Steam Library's directory that will contain Victoria 2
-	fs::path vic2_steam_lib_directory;
-	fs::path current_path = hint_path;
-
-	// If hinted path is directory that contains steamapps
-	bool is_steamapps = false;
-	if (fs::is_directory(current_path / steamapps, error_code)) {
-		current_path /= steamapps;
-		is_steamapps = true;
-	}
-
-	// If hinted path is steamapps directory
-	bool is_libraryfolders_vdf = false;
-	if (is_steamapps || (filename_equals(steamapps, current_path) && fs::is_directory(current_path, error_code))) {
-		current_path /= libraryfolders;
-		is_libraryfolders_vdf = true;
-	}
-
-	bool vic2_install_confirmed = false;
-	// if current_path is not a regular file, this is a non-default Steam Library, skip this parser evaluation
-	if (fs::is_regular_file(current_path, error_code) &&
-		(is_libraryfolders_vdf || filename_equals(libraryfolders, current_path))) {
-		lexy_vdf::Parser parser;
-
-		std::string buffer;
-		auto error_log_stream = detail::CallbackStream {
-			[](void const* s, std::streamsize n, void* user_data) -> std::streamsize {
-				if (s != nullptr && n > 0 && user_data != nullptr) {
-					static_cast<std::string*>(user_data)->append(static_cast<char const*>(s), n);
-					return n;
-				} else {
-					Logger::warning("Invalid input to parser error log callback: ", s, " / ", n, " / ", user_data);
-					return 0;
-				}
-			},
-			&buffer
-		};
-		parser.set_error_log_to(error_log_stream);
-
-		parser.load_from_file(current_path);
-		if (!parser.parse()) {
-			// Could not find or load libraryfolders.vdf, report error as warning
-			if (!buffer.empty()) {
-				Logger::warning _(buffer);
-			}
-			return "";
-		}
-		std::optional current_node = *(parser.get_key_values());
-
-		// check "libraryfolders" list
-		auto it = current_node.value().find("libraryfolders");
-		if (it == current_node.value().end()) {
-			Logger::warning("Expected libraryfolders.vdf to contain a libraryfolders key.");
-			return "";
-		}
-
-		static constexpr auto visit_node = [](auto&& arg) -> std::optional<lexy_vdf::KeyValues> {
-			using T = std::decay_t<decltype(arg)>;
-			if constexpr (std::is_same_v<T, lexy_vdf::KeyValues>) {
-				return arg;
-			} else {
-				return std::nullopt;
-			}
-		};
-
-		current_node = std::visit(visit_node, it->second);
-
-		if (!current_node.has_value()) {
-			Logger::warning("Expected libraryfolders.vdf's libraryfolders key to be a KeyValue dictionary.");
-			return "";
-		}
-
-		// Array of strings contain "0" to std::to_string(max_amount_of_steam_libraries - 1)
-		static constexpr auto library_indexes = OpenVic::ConstexprIntToStr::make_itosv_array<max_amount_of_steam_libraries>();
-
-		for (const auto& index : library_indexes) {
-			decltype(current_node) node = std::nullopt;
-
-			auto it = current_node.value().find(index);
-			if (it != current_node.value().end()) {
-				node = std::visit(visit_node, it->second);
-			}
-
-			// check "apps" list
-			decltype(node) apps_node = std::nullopt;
-			if (node.has_value()) {
-				it = node.value().find("apps");
-				if (it != node.value().end()) {
-					apps_node = std::visit(visit_node, it->second);
-				}
-			}
-
-			bool lib_contains_victoria_2 = false;
-			if (apps_node.has_value()) {
-				lib_contains_victoria_2 = apps_node.value().find("42960") != node.value().end();
-			}
-
-			if (lib_contains_victoria_2) {
-				it = node.value().find("path");
-				if (it != node.value().end()) {
-					vic2_steam_lib_directory = std::visit(
-						[](auto&& arg) -> std::string_view {
-							using T = std::decay_t<decltype(arg)>;
-							if constexpr (std::is_same_v<T, std::string>) {
-								return arg;
-							} else {
-								return "";
-							}
-						},
-						it->second
-					);
-					vic2_install_confirmed = true;
-					break;
-				}
-			}
-		}
-
-		if (vic2_steam_lib_directory.empty()) {
-			Logger::info("Steam installation appears not to contain Victoria 2.");
-			return "";
-		}
-	}
-
-	// If current_path points to steamapps/libraryfolders.vdf
-	if (vic2_steam_lib_directory.empty()) {
-		if (is_libraryfolders_vdf || filename_equals(libraryfolders, current_path)) {
-			vic2_steam_lib_directory = current_path.parent_path() / vic2_appmanifest;
-		} else if (filename_equals(vic2_appmanifest, current_path)) {
-			vic2_steam_lib_directory = current_path;
-		}
-	}
-
-	// If we could not confirm Victoria 2 was installed via the default Steam installation
-	bool is_common_folder = false;
-	if (!vic2_install_confirmed) {
-		auto parser = lexy_vdf::Parser::from_file(vic2_steam_lib_directory);
-		if (!parser.parse()) {
-			// Could not find or load appmanifest_42960.acf, report error as warning
-			for (auto& error : parser.get_errors()) {
-				Logger::warning(error.message);
-			}
-			return "";
-		}
-
-		// we can pretty much assume the Victoria 2 directory on Steam is valid from here
-		vic2_steam_lib_directory /= common_folder;
-		is_common_folder = true;
-	} else if (fs::is_directory(vic2_steam_lib_directory / steamapps, error_code)) {
-		vic2_steam_lib_directory /= fs::path(steamapps) / common_folder;
-		is_common_folder = true;
-	}
-
-	bool is_Victoria_2_folder = false;
-	if ((is_common_folder || filename_equals(common_folder, vic2_steam_lib_directory)) &&
-		fs::is_directory(vic2_steam_lib_directory, error_code)) {
-		vic2_steam_lib_directory /= Victoria_2_folder;
-		is_Victoria_2_folder = true;
-	}
-	if ((is_Victoria_2_folder || filename_equals(Victoria_2_folder, vic2_steam_lib_directory)) &&
-		fs::is_regular_file(vic2_steam_lib_directory / v2_game_exe, error_code)) {
-		return vic2_steam_lib_directory;
-	}
-
-	// Hail Mary check ignoring the hint_path
-	if (!hint_path_was_empty) {
-		return _search_for_game_path();
-	}
-
-	Logger::warning("Could not find Victoria 2 game path, this requires manually supplying one.");
-	return ""; // The supplied path fits literally none of the criteria
-}
-
-fs::path Dataloader::search_for_game_path(fs::path hint_path) {
-	auto it = _cached_paths.find(hint_path);
-	if (it != _cached_paths.end()) {
-		return it->second;
-	}
-
-	return _cached_paths[hint_path] = _search_for_game_path(hint_path);
-}
-
 bool Dataloader::set_roots(path_vector_t const& new_roots) {
 	if (!roots.empty()) {
 		Logger::error("Overriding existing dataloader roots!");