480 lines
17 KiB
C++
480 lines
17 KiB
C++
#include <hex/helpers/fs.hpp>
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#include <hex/api/content_registry.hpp>
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#include <hex/api/project_file_manager.hpp>
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#include <hex/helpers/logger.hpp>
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#include <hex/helpers/fmt.hpp>
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#include <hex/helpers/utils_linux.hpp>
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#include <xdg.hpp>
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#if defined(OS_WINDOWS)
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#include <windows.h>
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#include <shlobj.h>
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#elif defined(OS_LINUX) || defined(OS_WEB)
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#include <xdg.hpp>
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#include <limits.h>
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#endif
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#if defined(OS_WEB)
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#include <emscripten.h>
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#else
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#include <nfd.hpp>
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#endif
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#include <algorithm>
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#include <filesystem>
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#include <utility>
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#include <wolv/io/file.hpp>
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#include <wolv/io/fs.hpp>
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#include <wolv/utils/string.hpp>
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namespace hex::fs {
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static std::function<void(const std::string&)> s_fileBrowserErrorCallback;
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void setFileBrowserErrorCallback(const std::function<void(const std::string&)> &callback) {
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s_fileBrowserErrorCallback = callback;
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}
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// With help from https://github.com/owncloud/client/blob/cba22aa34b3677406e0499aadd126ce1d94637a2/src/gui/openfilemanager.cpp
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void openFileExternal(const std::fs::path &filePath) {
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// Make sure the file exists before trying to open it
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if (!wolv::io::fs::exists(filePath))
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return;
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#if defined(OS_WINDOWS)
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hex::unused(
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ShellExecute(nullptr, "open", wolv::util::toUTF8String(filePath).c_str(), nullptr, nullptr, SW_SHOWNORMAL)
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);
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#elif defined(OS_MACOS)
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hex::unused(system(
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hex::format("open {}", wolv::util::toUTF8String(filePath)).c_str()
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));
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#elif defined(OS_LINUX)
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executeCmd({"xdg-open", wolv::util::toUTF8String(filePath)});
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#endif
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}
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void openFolderExternal(const std::fs::path &dirPath) {
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// Make sure the folder exists before trying to open it
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if (!wolv::io::fs::exists(dirPath))
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return;
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#if defined(OS_WINDOWS)
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hex::unused(system(
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hex::format("explorer.exe {}", wolv::util::toUTF8String(dirPath)).c_str()
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));
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#elif defined(OS_MACOS)
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hex::unused(system(
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hex::format("open {}", wolv::util::toUTF8String(dirPath)).c_str()
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));
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#elif defined(OS_LINUX)
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executeCmd({"xdg-open", wolv::util::toUTF8String(dirPath)});
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#endif
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}
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void openFolderWithSelectionExternal(const std::fs::path &selectedFilePath) {
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// Make sure the file exists before trying to open it
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if (!wolv::io::fs::exists(selectedFilePath))
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return;
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#if defined(OS_WINDOWS)
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hex::unused(system(
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hex::format(R"(explorer.exe /select,"{}")", wolv::util::toUTF8String(selectedFilePath)).c_str()
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));
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#elif defined(OS_MACOS)
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hex::unused(system(
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hex::format(
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R"(osascript -e 'tell application "Finder" to reveal POSIX file "{}"')",
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wolv::util::toUTF8String(selectedFilePath)
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).c_str()
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));
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system(R"(osascript -e 'tell application "Finder" to activate')");
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#elif defined(OS_LINUX)
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// Fallback to only opening the folder for now
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// TODO actually select the file
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executeCmd({"xdg-open", wolv::util::toUTF8String(selectedFilePath.parent_path())});
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#endif
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}
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#if defined(OS_WEB)
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std::function<void(std::fs::path)> currentCallback;
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EMSCRIPTEN_KEEPALIVE
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extern "C" void fileBrowserCallback(char* path) {
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currentCallback(path);
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}
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EM_JS(int, callJs_saveFile, (const char *rawFilename), {
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let filename = UTF8ToString(rawFilename) || "file.bin";
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FS.createPath("/", "savedFiles");
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if (FS.analyzePath(filename).exists) {
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FS.unlink(filename);
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}
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// Call callback that will write the file
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Module._fileBrowserCallback(stringToNewUTF8("/savedFiles/" + filename));
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let data = FS.readFile("/savedFiles/" + filename);
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const reader = Object.assign(new FileReader(), {
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onload: () => {
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// Show popup to user to download
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let saver = document.createElement('a');
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saver.href = reader.result;
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saver.download = filename;
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saver.style = "display: none";
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saver.click();
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},
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onerror: () => {
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throw new Error(reader.error);
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},
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});
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reader.readAsDataURL(new File([data], "", { type: "application/octet-stream" }));
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});
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EM_JS(int, callJs_openFile, (bool multiple), {
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let selector = document.createElement("input");
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selector.type = "file";
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selector.style = "display: none";
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if (multiple) {
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selector.multiple = true;
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}
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selector.onchange = () => {
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if (selector.files.length == 0) return;
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FS.createPath("/", "openedFiles");
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for (let file of selector.files) {
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const fr = new FileReader();
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fr.onload = () => {
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let path = "/openedFiles/"+file.name;
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if (FS.analyzePath(path).exists) {
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FS.unlink(path);
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}
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FS.createDataFile("/openedFiles/", file.name, fr.result, true, true);
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Module._fileBrowserCallback(stringToNewUTF8(path));
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};
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fr.readAsBinaryString(file);
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}
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};
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selector.click();
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});
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bool openFileBrowser(DialogMode mode, const std::vector<ItemFilter> &validExtensions, const std::function<void(std::fs::path)> &callback, const std::string &defaultPath, bool multiple) {
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switch (mode) {
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case DialogMode::Open: {
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currentCallback = callback;
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callJs_openFile(multiple);
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break;
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}
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case DialogMode::Save: {
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currentCallback = callback;
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std::fs::path path;
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if (!defaultPath.empty())
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path = std::fs::path(defaultPath).filename();
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else if (!validExtensions.empty())
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path = "file." + validExtensions[0].spec;
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callJs_saveFile(path.filename().string().c_str());
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break;
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}
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case DialogMode::Folder: {
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throw std::logic_error("Selecting a folder is not implemented");
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return false;
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}
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default:
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std::unreachable();
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}
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return true;
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}
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#else
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bool openFileBrowser(DialogMode mode, const std::vector<ItemFilter> &validExtensions, const std::function<void(std::fs::path)> &callback, const std::string &defaultPath, bool multiple) {
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// Turn the content of the ItemFilter objects into something NFD understands
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std::vector<nfdfilteritem_t> validExtensionsNfd;
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for (const auto &extension : validExtensions) {
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validExtensionsNfd.emplace_back(nfdfilteritem_t{ extension.name.c_str(), extension.spec.c_str() });
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}
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// Clear errors from previous runs
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NFD::ClearError();
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// Try to initialize NFD
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if (NFD::Init() != NFD_OKAY) {
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// Handle errors if initialization failed
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log::error("NFD init returned an error: {}", NFD::GetError());
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if (s_fileBrowserErrorCallback != nullptr) {
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auto error = NFD::GetError();
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s_fileBrowserErrorCallback(error != nullptr ? error : "No details");
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}
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return false;
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}
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NFD::UniquePathU8 outPath;
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NFD::UniquePathSet outPaths;
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nfdresult_t result = NFD_ERROR;
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// Open the correct file dialog based on the mode
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switch (mode) {
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case DialogMode::Open:
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if (multiple)
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result = NFD::OpenDialogMultiple(outPaths, validExtensionsNfd.data(), validExtensionsNfd.size(), defaultPath.empty() ? nullptr : defaultPath.c_str());
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else
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result = NFD::OpenDialog(outPath, validExtensionsNfd.data(), validExtensionsNfd.size(), defaultPath.empty() ? nullptr : defaultPath.c_str());
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break;
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case DialogMode::Save:
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result = NFD::SaveDialog(outPath, validExtensionsNfd.data(), validExtensionsNfd.size(), defaultPath.empty() ? nullptr : defaultPath.c_str());
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break;
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case DialogMode::Folder:
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result = NFD::PickFolder(outPath, defaultPath.empty() ? nullptr : defaultPath.c_str());
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break;
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}
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if (result == NFD_OKAY){
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// Handle the path if the dialog was opened in single mode
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if (outPath != nullptr) {
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// Call the provided callback with the path
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callback(reinterpret_cast<char8_t*>(outPath.get()));
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}
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// Handle multiple paths if the dialog was opened in multiple mode
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if (outPaths != nullptr) {
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nfdpathsetsize_t numPaths = 0;
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if (NFD::PathSet::Count(outPaths, numPaths) == NFD_OKAY) {
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// Loop over all returned paths and call the callback with each of them
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for (size_t i = 0; i < numPaths; i++) {
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NFD::UniquePathSetPath path;
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if (NFD::PathSet::GetPath(outPaths, i, path) == NFD_OKAY)
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callback(reinterpret_cast<char8_t*>(path.get()));
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}
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}
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}
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} else if (result == NFD_ERROR) {
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// Handle errors that occurred during the file dialog call
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log::error("Requested file dialog returned an error: {}", NFD::GetError());
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if (s_fileBrowserErrorCallback != nullptr) {
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auto error = NFD::GetError();
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s_fileBrowserErrorCallback(error != nullptr ? error : "No details");
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}
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}
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NFD::Quit();
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return result == NFD_OKAY;
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}
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#endif
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std::vector<std::fs::path> getDataPaths() {
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std::vector<std::fs::path> paths;
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#if defined(OS_WINDOWS)
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// In the portable Windows version, we just use the executable directory
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// Prevent the use of the AppData folder here
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if (!ImHexApi::System::isPortableVersion()) {
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PWSTR wAppDataPath = nullptr;
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if (SUCCEEDED(SHGetKnownFolderPath(FOLDERID_LocalAppData, KF_FLAG_CREATE, nullptr, &wAppDataPath))) {
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paths.emplace_back(wAppDataPath);
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CoTaskMemFree(wAppDataPath);
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}
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}
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#elif defined(OS_MACOS)
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paths.push_back(wolv::io::fs::getApplicationSupportDirectoryPath());
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#elif defined(OS_LINUX) || defined(OS_WEB)
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paths.push_back(xdg::DataHomeDir());
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auto dataDirs = xdg::DataDirs();
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std::copy(dataDirs.begin(), dataDirs.end(), std::back_inserter(paths));
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#endif
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#if defined(OS_MACOS)
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if (auto executablePath = wolv::io::fs::getExecutablePath(); executablePath.has_value())
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paths.push_back(*executablePath);
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#else
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for (auto &path : paths)
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path = path / "imhex";
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if (auto executablePath = wolv::io::fs::getExecutablePath(); executablePath.has_value())
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paths.push_back(executablePath->parent_path());
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#endif
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// Add additional data directories to the path
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auto additionalDirs = ImHexApi::System::getAdditionalFolderPaths();
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std::copy(additionalDirs.begin(), additionalDirs.end(), std::back_inserter(paths));
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// Add the project file directory to the path, if one is loaded
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if (ProjectFile::hasPath()) {
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paths.push_back(ProjectFile::getPath().parent_path());
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}
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return paths;
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}
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static std::vector<std::fs::path> getConfigPaths() {
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#if defined(OS_WINDOWS)
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return getDataPaths();
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#elif defined(OS_MACOS)
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return getDataPaths();
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#elif defined(OS_LINUX) || defined(OS_WEB)
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return {xdg::ConfigHomeDir() / "imhex"};
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#endif
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}
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std::vector<std::fs::path> appendPath(std::vector<std::fs::path> paths, const std::fs::path &folder) {
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for (auto &path : paths)
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path = path / folder;
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return paths;
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}
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std::vector<std::fs::path> getPluginPaths() {
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std::vector<std::fs::path> paths = getDataPaths();
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// Add the system plugin directory to the path if one was provided at compile time
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#if defined(OS_LINUX) && defined(SYSTEM_PLUGINS_LOCATION)
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paths.push_back(SYSTEM_PLUGINS_LOCATION);
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#endif
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return paths;
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}
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std::vector<std::fs::path> getDefaultPaths(ImHexPath path, bool listNonExisting) {
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std::vector<std::fs::path> result;
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// Return the correct path based on the ImHexPath enum
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switch (path) {
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case ImHexPath::END:
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return { };
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case ImHexPath::Constants:
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result = appendPath(getDataPaths(), "constants");
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break;
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case ImHexPath::Config:
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result = appendPath(getConfigPaths(), "config");
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break;
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case ImHexPath::Encodings:
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result = appendPath(getDataPaths(), "encodings");
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break;
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case ImHexPath::Logs:
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result = appendPath(getDataPaths(), "logs");
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break;
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case ImHexPath::Plugins:
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result = appendPath(getPluginPaths(), "plugins");
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break;
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case ImHexPath::Libraries:
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result = appendPath(getPluginPaths(), "lib");
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break;
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case ImHexPath::Resources:
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result = appendPath(getDataPaths(), "resources");
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break;
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case ImHexPath::Magic:
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result = appendPath(getDataPaths(), "magic");
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break;
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case ImHexPath::Patterns:
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result = appendPath(getDataPaths(), "patterns");
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break;
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case ImHexPath::PatternsInclude:
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result = appendPath(getDataPaths(), "includes");
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break;
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case ImHexPath::Yara:
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result = appendPath(getDataPaths(), "yara");
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break;
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case ImHexPath::Recent:
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result = appendPath(getConfigPaths(), "recent");
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break;
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case ImHexPath::Scripts:
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result = appendPath(getDataPaths(), "scripts");
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break;
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case ImHexPath::Inspectors:
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result = appendPath(getDefaultPaths(ImHexPath::Scripts), "inspectors");
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break;
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case ImHexPath::Nodes:
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result = appendPath(getDefaultPaths(ImHexPath::Scripts), "nodes");
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break;
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case ImHexPath::Themes:
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result = appendPath(getDataPaths(), "themes");
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break;
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case ImHexPath::Layouts:
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result = appendPath(getDataPaths(), "layouts");
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break;
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}
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// Remove all paths that don't exist if requested
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if (!listNonExisting) {
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result.erase(std::remove_if(result.begin(), result.end(), [](const auto &path) {
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return !wolv::io::fs::isDirectory(path);
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}), result.end());
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}
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return result;
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}
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bool isPathWritable(const std::fs::path &path) {
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constexpr static auto TestFileName = "__imhex__tmp__";
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// Try to open the __imhex__tmp__ file in the given path
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// If one does exist already, try to delete it
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{
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wolv::io::File file(path / TestFileName, wolv::io::File::Mode::Read);
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if (file.isValid()) {
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if (!file.remove())
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return false;
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}
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}
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// Try to create a new file in the given path
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// If that fails, or the file cannot be deleted anymore afterward; the path is not writable
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wolv::io::File file(path / TestFileName, wolv::io::File::Mode::Create);
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bool result = file.isValid();
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if (!file.remove())
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return false;
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return result;
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}
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std::fs::path toShortPath(const std::fs::path &path) {
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#if defined(OS_WINDOWS)
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// Get the size of the short path
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size_t size = GetShortPathNameW(path.c_str(), nullptr, 0);
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if (size == 0)
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return path;
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// Get the short path
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std::wstring newPath(size, 0x00);
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GetShortPathNameW(path.c_str(), newPath.data(), newPath.size());
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newPath.pop_back();
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return newPath;
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#else
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// Other supported platforms don't have short paths
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return path;
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#endif
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}
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}
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