mirror of
https://github.com/RPCS3/rpcs3.git
synced 2024-11-22 02:32:36 +01:00
554 lines
13 KiB
C++
554 lines
13 KiB
C++
#include "bin_patch.h"
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#include "File.h"
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#include "Config.h"
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LOG_CHANNEL(patch_log);
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template <>
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void fmt_class_string<YAML::NodeType::value>::format(std::string& out, u64 arg)
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{
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format_enum(out, arg, [](YAML::NodeType::value value)
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{
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switch (value)
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{
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case YAML::NodeType::Undefined: return "Undefined";
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case YAML::NodeType::Null: return "Null";
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case YAML::NodeType::Scalar: return "Scalar";
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case YAML::NodeType::Sequence: return "Sequence";
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case YAML::NodeType::Map: return "Map";
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}
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return unknown;
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});
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}
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template <>
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void fmt_class_string<patch_type>::format(std::string& out, u64 arg)
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{
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format_enum(out, arg, [](patch_type value)
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{
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switch (value)
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{
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case patch_type::load: return "load";
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case patch_type::byte: return "byte";
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case patch_type::le16: return "le16";
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case patch_type::le32: return "le32";
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case patch_type::le64: return "le64";
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case patch_type::bef32: return "bef32";
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case patch_type::bef64: return "bef64";
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case patch_type::be16: return "be16";
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case patch_type::be32: return "be32";
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case patch_type::be64: return "be64";
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case patch_type::lef32: return "lef32";
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case patch_type::lef64: return "lef64";
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}
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return unknown;
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});
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}
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patch_engine::patch_engine()
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{
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const std::string patches_path = fs::get_config_dir() + "patches/";
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if (!fs::create_path(patches_path))
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{
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patch_log.fatal("Failed to create path: %s (%s)", patches_path, fs::g_tls_error);
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}
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}
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std::string patch_engine::get_patch_config_path()
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{
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#ifdef _WIN32
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return fs::get_config_dir() + "config/patch_config.yml";
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#else
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return fs::get_config_dir() + "patch_config.yml";
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#endif
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}
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void patch_engine::load(patch_map& patches_map, const std::string& path)
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{
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// Load patch file
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fs::file file{ path };
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if (!file)
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{
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// Do nothing
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return;
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}
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// Interpret yaml nodes
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auto [root, error] = yaml_load(file.to_string());
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if (!error.empty())
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{
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patch_log.fatal("Failed to load patch file %s:\n%s", path, error);
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return;
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}
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// Load patch config to determine which patches are enabled
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patch_config_map patch_config = load_config();
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static const std::string target_version = "1.0";
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std::string version;
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bool is_legacy_patch = false;
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if (const auto version_node = root["Version"])
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{
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version = version_node.Scalar();
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if (version != target_version)
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{
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patch_log.error("Patch engine target version %s does not match file version %s in %s", target_version, version, path);
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return;
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}
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// We don't need the Version node in local memory anymore
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root.remove("Version");
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}
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else
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{
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patch_log.warning("Patch engine version %s: Reading legacy patch file %s", target_version, path);
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is_legacy_patch = true;
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}
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// Go through each main key in the file
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for (auto pair : root)
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{
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const auto& main_key = pair.first.Scalar();
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// Use old logic and yaml layout if this is a legacy patch
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if (is_legacy_patch)
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{
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struct patch_info info{};
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info.hash = main_key;
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info.enabled = true;
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info.is_legacy = true;
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read_patch_node(info, pair.second, root);
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// Find or create an entry matching the key/hash in our map
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auto& title_info = patches_map[main_key];
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title_info.hash = main_key;
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title_info.is_legacy = true;
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title_info.patch_info_map["legacy"] = info;
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continue;
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}
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// Use new logic and yaml layout
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if (const auto yml_type = pair.second.Type(); yml_type != YAML::NodeType::Map)
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{
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patch_log.error("Skipping key %s: expected Map, found %s (file: %s)", main_key, yml_type, path);
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continue;
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}
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// Skip Anchors
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if (main_key == "Anchors")
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{
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continue;
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}
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std::string title;
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std::string serials;
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if (const auto title_node = pair.second["Title"])
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{
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title = title_node.Scalar();
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}
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if (const auto serials_node = pair.second["Serials"])
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{
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serials = serials_node.Scalar();
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}
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if (const auto patches_node = pair.second["Patches"])
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{
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if (const auto yml_type = patches_node.Type(); yml_type != YAML::NodeType::Map)
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{
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patch_log.error("Skipping Patches: expected Map, found %s (key: %s, file: %s)", yml_type, main_key, path);
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continue;
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}
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// Find or create an entry matching the key/hash in our map
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auto& title_info = patches_map[main_key];
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title_info.is_legacy = false;
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title_info.hash = main_key;
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title_info.title = title;
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title_info.serials = serials;
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title_info.version = version;
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// Go through each patch
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for (auto patches_entry : patches_node)
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{
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// Each key in "Patches" is also the patch description
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const std::string description = patches_entry.first.Scalar();
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// Find out if this patch was enabled in the patch config
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const bool enabled = patch_config[main_key][description];
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// Compile patch information
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if (const auto yml_type = patches_entry.second.Type(); yml_type != YAML::NodeType::Map)
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{
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patch_log.error("Skipping Patch key %s: expected Map, found %s (key: %s, file: %s)", description, yml_type, main_key, path);
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continue;
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}
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struct patch_info info {};
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info.enabled = enabled;
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info.description = description;
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info.hash = main_key;
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info.version = version;
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info.serials = serials;
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info.title = title;
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if (const auto author_node = patches_entry.second["Author"])
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{
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info.author = author_node.Scalar();
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}
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if (const auto patch_version_node = patches_entry.second["Version"])
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{
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info.patch_version = patch_version_node.Scalar();
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}
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if (const auto notes_node = patches_entry.second["Notes"])
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{
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info.notes = notes_node.Scalar();
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}
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if (const auto patch_node = patches_entry.second["Patch"])
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{
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read_patch_node(info, patch_node, root);
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}
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// Insert patch information
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title_info.patch_info_map[description] = info;
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}
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}
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}
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}
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patch_type patch_engine::get_patch_type(YAML::Node node)
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{
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u64 type_val = 0;
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cfg::try_to_enum_value(&type_val, &fmt_class_string<patch_type>::format, node.Scalar());
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return static_cast<patch_type>(type_val);
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}
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void patch_engine::add_patch_data(YAML::Node node, patch_info& info, u32 modifier, const YAML::Node& root)
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{
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const auto type_node = node[0];
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auto addr_node = node[1];
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const auto value_node = node[2];
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struct patch_data p_data{};
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p_data.type = get_patch_type(type_node);
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p_data.offset = addr_node.as<u32>(0) + modifier;
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switch (p_data.type)
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{
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case patch_type::load:
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{
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// Special syntax: anchors (named sequence)
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// Most legacy patches don't use the anchor syntax correctly, so try to sanitize it.
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if (info.is_legacy)
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{
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if (const auto yml_type = addr_node.Type(); yml_type == YAML::NodeType::Scalar)
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{
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const auto anchor = addr_node.Scalar();
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patch_log.warning("Incorrect anchor syntax found in legacy patch: %s (key: %s)", anchor, info.hash);
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if (!(addr_node = root[anchor]))
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{
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patch_log.error("Anchor not found in legacy patch: %s (key: %s)", anchor, info.hash);
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return;
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}
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}
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}
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// Check if the anchor was resolved.
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if (const auto yml_type = addr_node.Type(); yml_type != YAML::NodeType::Sequence)
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{
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patch_log.error("Skipping sequence: expected Sequence, found %s (key: %s)", yml_type, info.hash);
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return;
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}
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// Address modifier (optional)
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const u32 mod = value_node.as<u32>(0);
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for (const auto& item : addr_node)
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{
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add_patch_data(item, info, mod, root);
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}
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return;
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}
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case patch_type::bef32:
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case patch_type::lef32:
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{
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p_data.value = std::bit_cast<u32>(value_node.as<f32>());
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break;
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}
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case patch_type::bef64:
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case patch_type::lef64:
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{
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p_data.value = std::bit_cast<u64>(value_node.as<f64>());
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break;
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}
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default:
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{
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p_data.value = value_node.as<u64>();
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}
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}
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info.data_list.emplace_back(p_data);
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}
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void patch_engine::read_patch_node(patch_info& info, YAML::Node node, const YAML::Node& root)
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{
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if (const auto yml_type = node.Type(); yml_type != YAML::NodeType::Sequence)
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{
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patch_log.error("Skipping patch node %s: expected Sequence, found %s (key: %s)", info.description, yml_type, info.hash);
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return;
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}
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for (auto patch : node)
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{
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add_patch_data(patch, info, 0, root);
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}
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}
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void patch_engine::append(const std::string& patch)
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{
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load(m_map, patch);
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}
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void patch_engine::append_global_patches()
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{
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// Legacy patch.yml
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load(m_map, fs::get_config_dir() + "patch.yml");
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// New patch.yml
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load(m_map, fs::get_config_dir() + "patches/patch.yml");
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}
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void patch_engine::append_title_patches(const std::string& title_id)
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{
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if (title_id.empty())
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{
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return;
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}
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// Legacy patch.yml
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load(m_map, fs::get_config_dir() + "data/" + title_id + "/patch.yml");
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// New patch.yml
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load(m_map, fs::get_config_dir() + "patches/" + title_id + "_patch.yml");
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}
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std::size_t patch_engine::apply(const std::string& name, u8* dst) const
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{
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return apply_patch<false>(name, dst, 0, 0);
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}
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std::size_t patch_engine::apply_with_ls_check(const std::string& name, u8* dst, u32 filesz, u32 ls_addr) const
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{
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return apply_patch<true>(name, dst, filesz, ls_addr);
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}
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template <bool check_local_storage>
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std::size_t patch_engine::apply_patch(const std::string& name, u8* dst, u32 filesz, u32 ls_addr) const
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{
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if (m_map.find(name) == m_map.cend())
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{
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return 0;
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}
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size_t applied_total = 0;
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const auto& title_info = m_map.at(name);
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// Apply modifications sequentially
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for (const auto& [description, patch] : title_info.patch_info_map)
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{
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if (!patch.enabled)
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{
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continue;
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}
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size_t applied = 0;
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for (const auto& p : patch.data_list)
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{
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u32 offset = p.offset;
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if constexpr (check_local_storage)
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{
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offset -= ls_addr;
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if (offset < ls_addr || offset >= (ls_addr + filesz))
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{
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// This patch is out of range for this segment
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continue;
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}
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}
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auto ptr = dst + offset;
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switch (p.type)
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{
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case patch_type::load:
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{
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// Invalid in this context
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continue;
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}
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case patch_type::byte:
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{
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*ptr = static_cast<u8>(p.value);
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break;
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}
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case patch_type::le16:
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{
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*reinterpret_cast<le_t<u16, 1>*>(ptr) = static_cast<u16>(p.value);
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break;
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}
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case patch_type::le32:
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case patch_type::lef32:
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{
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*reinterpret_cast<le_t<u32, 1>*>(ptr) = static_cast<u32>(p.value);
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break;
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}
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case patch_type::le64:
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case patch_type::lef64:
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{
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*reinterpret_cast<le_t<u64, 1>*>(ptr) = static_cast<u64>(p.value);
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break;
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}
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case patch_type::be16:
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{
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*reinterpret_cast<be_t<u16, 1>*>(ptr) = static_cast<u16>(p.value);
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break;
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}
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case patch_type::be32:
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case patch_type::bef32:
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{
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*reinterpret_cast<be_t<u32, 1>*>(ptr) = static_cast<u32>(p.value);
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break;
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}
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case patch_type::be64:
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case patch_type::bef64:
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{
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*reinterpret_cast<be_t<u64, 1>*>(ptr) = static_cast<u64>(p.value);
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break;
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}
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}
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++applied;
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}
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if (title_info.is_legacy)
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{
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patch_log.notice("Applied legacy patch (<- %d)", applied);
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}
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else
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{
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patch_log.notice("Applied patch (description='%s', author='%s', patch_version='%s', file_version='%s') (<- %d)", description, patch.author, patch.patch_version, patch.version, applied);
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}
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applied_total += applied;
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}
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return applied_total;
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}
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void patch_engine::save_config(const patch_map& patches_map)
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{
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const std::string path = get_patch_config_path();
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patch_log.notice("Saving patch config file %s", path);
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fs::file file(path, fs::rewrite);
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if (!file)
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{
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patch_log.fatal("Failed to open patch config file %s", path);
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return;
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}
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YAML::Emitter out;
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out << YAML::BeginMap;
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patch_config_map config_map;
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for (const auto& [hash, title_info] : patches_map)
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{
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if (title_info.is_legacy)
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{
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continue;
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}
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for (const auto& [description, patch] : title_info.patch_info_map)
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{
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config_map[hash][description] = patch.enabled;
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}
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if (config_map[hash].size() > 0)
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{
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out << hash;
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out << YAML::BeginMap;
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for (const auto& [description, enabled] : config_map[hash])
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{
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out << description;
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out << enabled;
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}
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out << YAML::EndMap;
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}
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}
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out << YAML::EndMap;
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file.write(out.c_str(), out.size());
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}
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patch_engine::patch_config_map patch_engine::load_config()
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{
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patch_config_map config_map;
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const std::string path = get_patch_config_path();
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patch_log.notice("Loading patch config file %s", path);
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if (fs::file f{ path })
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{
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auto [root, error] = yaml_load(f.to_string());
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if (!error.empty())
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{
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patch_log.fatal("Failed to load patch config file %s:\n%s", path, error);
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return config_map;
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}
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for (auto pair : root)
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{
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auto& hash = pair.first.Scalar();
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auto& data = config_map[hash];
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if (const auto yml_type = pair.second.Type(); yml_type != YAML::NodeType::Map)
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{
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patch_log.error("Error loading patch config key %s: expected Map, found %s (file: %s)", hash, yml_type, path);
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continue;
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}
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for (auto patch : pair.second)
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{
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const auto description = patch.first.Scalar();
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const auto enabled = patch.second.as<bool>(false);
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data[description] = enabled;
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}
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}
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}
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return config_map;
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}
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