mirror of
https://github.com/boykopovar/AnyPS5.git
synced 2026-10-27 00:28:14 +00:00
72 lines
2.6 KiB
C++
72 lines
2.6 KiB
C++
#include <io/FileIdentity.hpp>
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#include <chrono>
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#include <filesystem>
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#include <fstream>
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#include <iostream>
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#include <stdexcept>
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#include <string>
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namespace {
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void require(bool condition, const std::string& message) {
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if (!condition) throw std::runtime_error(message);
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}
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void write(const std::filesystem::path& path, const std::string& text) {
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std::ofstream(path, std::ios::binary) << text;
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require(std::filesystem::is_regular_file(path), "Cannot create " + path.string());
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}
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void requireMissing(
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const std::filesystem::path& first,
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const std::filesystem::path& second,
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const std::filesystem::path& missing
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) {
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try {
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Io::SameFile(first, second);
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} catch (const std::filesystem::filesystem_error& error) {
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require(error.code() == std::errc::no_such_file_or_directory, "SameFile reported the wrong error for a missing path");
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require(error.path1() == missing, "SameFile reported the wrong missing path");
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return;
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}
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throw std::runtime_error("SameFile accepted a missing file");
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}
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void run(const std::filesystem::path& directory) {
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const auto first = directory / "first.bin";
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const auto link = directory / "link.bin";
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const auto copy = directory / "copy.bin";
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const auto folder = directory / "folder";
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write(first, "same");
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write(copy, "same");
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std::filesystem::create_hard_link(first, link);
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std::filesystem::create_directory(folder);
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require(Io::SameFile(first, first), "A file differs from itself");
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require(Io::SameFile(first, folder / ".." / "first.bin"), "Two spellings of one file differ");
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require(Io::SameFile(first, link), "A hard link differs from its target");
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require(!Io::SameFile(first, copy), "A copy with the same contents is the same file");
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require(Io::SameFile(folder, directory / "folder" / "."), "Two spellings of one directory differ");
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require(!Io::SameFile(first, folder), "A file is the same as a directory");
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const auto missing = directory / "missing.bin";
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requireMissing(missing, first, missing);
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requireMissing(first, missing, missing);
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}
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}
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int main() {
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const auto directory = std::filesystem::temp_directory_path() /
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("anyps5-file-identity-" + std::to_string(std::chrono::steady_clock::now().time_since_epoch().count()));
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try {
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std::filesystem::create_directories(directory);
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run(directory);
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} catch (const std::exception& error) {
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std::cerr << error.what() << '\n';
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std::error_code ignored;
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std::filesystem::remove_all(directory, ignored);
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return 1;
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}
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std::filesystem::remove_all(directory);
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return 0;
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}
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