256 lines
7.7 KiB
C++
256 lines
7.7 KiB
C++
#include "engine_paths.hpp"
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#include <algorithm>
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#include <array>
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#include <filesystem>
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#include <sstream>
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#include <stack>
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#include "typedefs.hpp"
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#include "util/stringutil.hpp"
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#include <utility>
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#include "WorldFiles.hpp"
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/// @brief ENUM for accessing folder and file names
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enum F_F_NAME {
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SCREENSHOTS_FOLDER,
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CONTENT_FOLDER,
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CONTROLS_FILE,
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SETTINGS_FILE,
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COUNT
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};
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/// @brief array for get file or folder name by enum `F_F_NAME`
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///
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/// example:
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/// `std::filesystem::path settings = f_f_names[SETTINGS_FILE];`
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static std::array<std::string, F_F_NAME::COUNT> f_f_names {
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"screenshots", "content", "controls.toml", "settings.toml"};
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static std::filesystem::path toCanonic(std::filesystem::path path) {
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std::stack<std::string> parts;
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path = path.lexically_normal();
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do {
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parts.push(path.filename().u8string());
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path = path.parent_path();
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} while (!path.empty());
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path = fs::u8path("");
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while (!parts.empty()) {
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const std::string part = parts.top();
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parts.pop();
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if (part == ".") {
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continue;
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}
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if (part == "..") {
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throw files_access_error("entry point reached");
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}
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path = path / std::filesystem::path(part);
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}
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return path;
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}
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void EnginePaths::prepare() {
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auto contentFolder =
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userFilesFolder / std::filesystem::path(f_f_names[CONTENT_FOLDER]);
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if (!fs::is_directory(contentFolder)) {
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fs::create_directories(contentFolder);
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}
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}
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std::filesystem::path EnginePaths::getUserFilesFolder() const {
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return userFilesFolder;
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}
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std::filesystem::path EnginePaths::getResourcesFolder() const {
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return resourcesFolder;
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}
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std::filesystem::path EnginePaths::getNewScreenshotFile(const std::string& ext) {
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auto folder =
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userFilesFolder / std::filesystem::path(f_f_names[SCREENSHOTS_FOLDER]);
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if (!fs::is_directory(folder)) {
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fs::create_directory(folder);
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}
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auto t = std::time(nullptr);
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auto tm = *std::localtime(&t);
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const char* format = "%Y-%m-%d_%H-%M-%S";
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std::stringstream ss;
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ss << std::put_time(&tm, format);
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std::string datetimestr = ss.str();
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auto filename = folder / fs::u8path("screenshot-" + datetimestr + "." + ext);
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uint index = 0;
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while (fs::exists(filename)) {
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filename = folder / fs::u8path(
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"screenshot-" + datetimestr + "-" +
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std::to_string(index) + "." + ext
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);
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index++;
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}
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return filename;
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}
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std::filesystem::path EnginePaths::getWorldsFolder() {
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return userFilesFolder / std::filesystem::path("worlds");
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}
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std::filesystem::path EnginePaths::getCurrentWorldFolder() {
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return currentWorldFolder;
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}
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std::filesystem::path EnginePaths::getWorldFolderByName(const std::string& name) {
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return getWorldsFolder() / std::filesystem::path(name);
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}
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std::filesystem::path EnginePaths::getControlsFile() {
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return userFilesFolder / std::filesystem::path(f_f_names[CONTROLS_FILE]);
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}
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std::filesystem::path EnginePaths::getSettingsFile() {
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return userFilesFolder / std::filesystem::path(f_f_names[SETTINGS_FILE]);
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}
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std::vector<std::filesystem::path> EnginePaths::scanForWorlds() {
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std::vector<std::filesystem::path> folders;
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auto folder = getWorldsFolder();
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if (!fs::is_directory(folder)) return folders;
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for (const auto& entry : fs::directory_iterator(folder)) {
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if (!entry.is_directory()) {
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continue;
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}
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const auto& worldFolder = entry.path();
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auto worldFile = worldFolder / fs::u8path(WorldFiles::WORLD_FILE);
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if (!fs::is_regular_file(worldFile)) {
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continue;
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}
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folders.push_back(worldFolder);
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}
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std::sort(
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folders.begin(),
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folders.end(),
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[](std::filesystem::path a, std::filesystem::path b) {
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a = a / fs::u8path(WorldFiles::WORLD_FILE);
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b = b / fs::u8path(WorldFiles::WORLD_FILE);
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return fs::last_write_time(a) > fs::last_write_time(b);
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}
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);
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return folders;
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}
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void EnginePaths::setUserFilesFolder(std::filesystem::path folder) {
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this->userFilesFolder = std::move(folder);
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}
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void EnginePaths::setResourcesFolder(std::filesystem::path folder) {
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this->resourcesFolder = std::move(folder);
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}
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void EnginePaths::setCurrentWorldFolder(std::filesystem::path folder) {
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this->currentWorldFolder = std::move(folder);
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}
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void EnginePaths::setContentPacks(std::vector<ContentPack>* contentPacks) {
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this->contentPacks = contentPacks;
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}
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std::filesystem::path EnginePaths::resolve(
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const std::string& path, bool throwErr
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) {
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size_t separator = path.find(':');
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if (separator == std::string::npos) {
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throw files_access_error("no entry point specified");
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}
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std::string prefix = path.substr(0, separator);
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std::string filename = path.substr(separator + 1);
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filename = toCanonic(fs::u8path(filename)).u8string();
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if (prefix == "res" || prefix == "core") {
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return resourcesFolder / fs::u8path(filename);
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}
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if (prefix == "user") {
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return userFilesFolder / fs::u8path(filename);
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}
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if (prefix == "world") {
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return currentWorldFolder / fs::u8path(filename);
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}
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if (contentPacks) {
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for (auto& pack : *contentPacks) {
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if (pack.id == prefix) {
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return pack.folder / fs::u8path(filename);
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}
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}
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}
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if (throwErr) {
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throw files_access_error("unknown entry point '" + prefix + "'");
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}
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return std::filesystem::path(filename);
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}
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ResPaths::ResPaths(std::filesystem::path mainRoot, std::vector<PathsRoot> roots)
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: mainRoot(std::move(mainRoot)), roots(std::move(roots)) {
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}
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std::filesystem::path ResPaths::find(const std::string& filename) const {
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for (int i = roots.size() - 1; i >= 0; i--) {
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auto& root = roots[i];
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auto file = root.path / fs::u8path(filename);
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if (fs::exists(file)) {
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return file;
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}
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}
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return mainRoot / fs::u8path(filename);
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}
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std::string ResPaths::findRaw(const std::string& filename) const {
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for (int i = roots.size() - 1; i >= 0; i--) {
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auto& root = roots[i];
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if (fs::exists(root.path / std::filesystem::path(filename))) {
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return root.name + ":" + filename;
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}
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}
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throw std::runtime_error("could not to find file " + util::quote(filename));
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}
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std::vector<std::string> ResPaths::listdirRaw(const std::string& folderName) const {
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std::vector<std::string> entries;
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for (int i = roots.size() - 1; i >= 0; i--) {
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auto& root = roots[i];
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auto folder = root.path / fs::u8path(folderName);
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if (!fs::is_directory(folder)) continue;
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for (const auto& entry : fs::directory_iterator(folder)) {
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auto name = entry.path().filename().u8string();
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entries.emplace_back(root.name + ":" + folderName + "/" + name);
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}
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}
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return entries;
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}
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std::vector<std::filesystem::path> ResPaths::listdir(
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const std::string& folderName
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) const {
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std::vector<std::filesystem::path> entries;
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for (int i = roots.size() - 1; i >= 0; i--) {
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auto& root = roots[i];
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std::filesystem::path folder = root.path / fs::u8path(folderName);
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if (!fs::is_directory(folder)) continue;
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for (const auto& entry : fs::directory_iterator(folder)) {
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entries.push_back(entry.path());
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}
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}
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return entries;
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}
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const std::filesystem::path& ResPaths::getMainRoot() const {
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return mainRoot;
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}
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