mirror of
https://github.com/geode-sdk/geode.git
synced 2024-11-26 17:36:05 -05:00
113 lines
3.5 KiB
C++
113 lines
3.5 KiB
C++
#include <Windows.h>
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#include <iostream>
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#include <array>
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#include <filesystem>
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std::filesystem::path workingDir;
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std::filesystem::path geodeDir;
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std::filesystem::path updatesDir;
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std::filesystem::path resourcesDir;
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void showError(std::string const& error) {
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MessageBoxA(nullptr, error.c_str(), "Error Loading Geode", MB_ICONERROR);
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}
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bool waitForFile(std::filesystem::path const& path) {
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if (!path.has_filename())
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return false;
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int delay = 10;
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HANDLE hFile;
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while ((hFile = CreateFileA(path.string().c_str(), FILE_GENERIC_WRITE, FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL)) == INVALID_HANDLE_VALUE) {
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if (GetLastError() == ERROR_SHARING_VIOLATION) {
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Sleep(delay);
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// the delay would raise and go up to about 5 seconds, after which it will fail
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if (delay < 5120)
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delay *= 2;
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}
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else
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break;
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}
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if (hFile)
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CloseHandle(hFile);
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else {
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showError("Unable to update Geode: " + path.filename().string() + " is open by another process.");
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return false;
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}
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return true;
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}
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void updateFile(std::string const& name) {
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std::error_code error;
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if (!std::filesystem::exists(updatesDir / name, error) || error)
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return;
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if (!waitForFile(workingDir / name))
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return;
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std::filesystem::rename(updatesDir / name, workingDir / name, error);
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if (error) {
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showError("Unable to update Geode: Unable to move " + name + " - " + error.message());
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return;
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}
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}
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void removePath(std::filesystem::path const& path) {
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std::error_code error;
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if (!std::filesystem::exists(path, error) || error)
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return;
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if (path.has_filename() && !waitForFile(path))
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return;
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if (std::filesystem::is_directory(path) && !std::filesystem::is_empty(path))
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std::filesystem::remove_all(path, error);
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std::filesystem::remove(path, error);
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if (error) {
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if (path.has_filename())
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showError("Unable to update Geode: Unable to remove " + path.filename().string() + " - " + error.message());
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else
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showError("Unable to update Geode: Unable to remove " + path.string() + " - " + error.message());
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return;
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}
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}
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void updateResources() {
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std::error_code error;
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if (!std::filesystem::exists(updatesDir / "resources", error) || error)
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return;
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std::filesystem::remove_all(resourcesDir / "geode.loader", error);
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if (error) {
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showError("Unable to update Geode resources:" + error.message());
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return;
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}
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std::filesystem::rename(updatesDir / "resources", resourcesDir / "geode.loader", error);
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if (error) {
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showError("Unable to update Geode resources: " + error.message());
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return;
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}
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}
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int main(int argc, char* argv[]) {
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workingDir = std::filesystem::current_path();
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geodeDir = workingDir / "geode";
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updatesDir = geodeDir / "update";
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resourcesDir = geodeDir / "resources";
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if (std::filesystem::exists(workingDir / "GeodeBootstrapper.dll"))
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removePath(workingDir / "GeodeBootstrapper.dll");
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if (std::filesystem::exists(geodeDir) && std::filesystem::exists(updatesDir)) {
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updateFile("XInput9_1_0.dll");
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updateFile("Geode.dll");
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updateResources();
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removePath(updatesDir);
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}
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if (argc < 2)
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return 0;
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// restart gd using the provided path
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ShellExecuteA(NULL, "open", (workingDir / argv[1]).string().c_str(), "", workingDir.string().c_str(), TRUE);
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return 0;
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}
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