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mpratsakiandClaude Opus 5.5
763702c5ce
Guest module discovery skipped the input executable and the --executable check rejected an executable converted twice through std::filesystem::equivalent, which MinGW reports as false for hard links whose names give different permissions, such as .bin and .exe. Move the GetFileInformationByHandle comparison to Io::SameFile and use it for these checks and for SameOutputFile. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
38 lines
1.3 KiB
C++
38 lines
1.3 KiB
C++
#include <io/FileIdentity.hpp>
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#include <system_error>
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#include <tuple>
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#ifdef _WIN32
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#include <windows.h>
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#endif
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namespace Io {
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#ifdef _WIN32
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namespace {
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std::tuple<DWORD, DWORD, DWORD> FileIdentity(const std::filesystem::path& path) {
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const auto handle = CreateFileW(path.c_str(), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, nullptr, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, nullptr);
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if (handle == INVALID_HANDLE_VALUE)
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throw std::filesystem::filesystem_error("Cannot open file identity", path, std::error_code(static_cast<int>(GetLastError()), std::system_category()));
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BY_HANDLE_FILE_INFORMATION information{};
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const bool read = GetFileInformationByHandle(handle, &information) != 0;
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const auto error = GetLastError();
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CloseHandle(handle);
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if (!read) throw std::filesystem::filesystem_error("Cannot read file identity", path, std::error_code(static_cast<int>(error), std::system_category()));
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return {information.dwVolumeSerialNumber, information.nFileIndexHigh, information.nFileIndexLow};
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}
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}
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#endif
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bool SameFile(const std::filesystem::path& first, const std::filesystem::path& second) {
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#ifdef _WIN32
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return FileIdentity(first) == FileIdentity(second);
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#else
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return std::filesystem::equivalent(first, second);
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#endif
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}
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}
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