diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | src/filesystem.hpp | 5809 |
2 files changed, 1 insertions, 5809 deletions
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 12efd52..22ced1e 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -2,6 +2,7 @@ include_directories( ${PROJECT_SOURCE_DIR}/qtools + ${PROJECT_SOURCE_DIR}/filesystem ${PROJECT_SOURCE_DIR}/libmd5 ${PROJECT_SOURCE_DIR}/liblodepng ${PROJECT_SOURCE_DIR}/libmscgen diff --git a/src/filesystem.hpp b/src/filesystem.hpp deleted file mode 100644 index e45f296..0000000 --- a/src/filesystem.hpp +++ /dev/null @@ -1,5809 +0,0 @@ -//--------------------------------------------------------------------------------------- -// -// ghc::filesystem - A C++17-like filesystem implementation for C++11/C++14/C++17/C++20 -// -//--------------------------------------------------------------------------------------- -// -// Copyright (c) 2018, Steffen Schümann <s.schuemann@pobox.com> -// -// Permission is hereby granted, free of charge, to any person obtaining a copy -// of this software and associated documentation files (the "Software"), to deal -// in the Software without restriction, including without limitation the rights -// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -// copies of the Software, and to permit persons to whom the Software is -// furnished to do so, subject to the following conditions: -// -// The above copyright notice and this permission notice shall be included in all -// copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -// SOFTWARE. -// -//--------------------------------------------------------------------------------------- -// -// To dynamically select std::filesystem where available on most platforms, -// you could use: -// -// #if ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) || (defined(__cplusplus) && __cplusplus >= 201703L)) && defined(__has_include) -// #if __has_include(<filesystem>) && (!defined(__MAC_OS_X_VERSION_MIN_REQUIRED) || __MAC_OS_X_VERSION_MIN_REQUIRED >= 101500) -// #define GHC_USE_STD_FS -// #include <filesystem> -// namespace fs = std::filesystem; -// #endif -// #endif -// #ifndef GHC_USE_STD_FS -// #include <ghc/filesystem.hpp> -// namespace fs = ghc::filesystem; -// #endif -// -//--------------------------------------------------------------------------------------- -#ifndef GHC_FILESYSTEM_H -#define GHC_FILESYSTEM_H - -// #define BSD manifest constant only in -// sys/param.h -#ifndef _WIN32 -#include <sys/param.h> -#endif - -#ifndef GHC_OS_DETECTED -#if defined(__APPLE__) && defined(__MACH__) -#define GHC_OS_MACOS -#elif defined(__linux__) || defined(__CYGWIN__) -#define GHC_OS_LINUX -#if defined(__ANDROID__) -#define GHC_OS_ANDROID -#endif -#elif defined(_WIN64) -#define GHC_OS_WINDOWS -#define GHC_OS_WIN64 -#elif defined(_WIN32) -#define GHC_OS_WINDOWS -#define GHC_OS_WIN32 -#elif defined(__svr4__) -#define GHC_OS_SYS5R4 -#elif defined(BSD) -#define GHC_OS_BSD -#elif defined(__EMSCRIPTEN__) -#define GHC_OS_WEB -#include <wasi/api.h> -#else -#error "Operating system currently not supported!" -#endif -#define GHC_OS_DETECTED -#if (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) -#if _MSVC_LANG == 201703L -#define GHC_FILESYSTEM_RUNNING_CPP17 -#else -#define GHC_FILESYSTEM_RUNNING_CPP20 -#endif -#elif (defined(__cplusplus) && __cplusplus >= 201703L) -#if __cplusplus == 201703L -#define GHC_FILESYSTEM_RUNNING_CPP17 -#else -#define GHC_FILESYSTEM_RUNNING_CPP20 -#endif -#endif -#endif - -#if defined(GHC_FILESYSTEM_IMPLEMENTATION) -#define GHC_EXPAND_IMPL -#define GHC_INLINE -#ifdef GHC_OS_WINDOWS -#ifndef GHC_FS_API -#define GHC_FS_API -#endif -#ifndef GHC_FS_API_CLASS -#define GHC_FS_API_CLASS -#endif -#else -#ifndef GHC_FS_API -#define GHC_FS_API __attribute__((visibility("default"))) -#endif -#ifndef GHC_FS_API_CLASS -#define GHC_FS_API_CLASS __attribute__((visibility("default"))) -#endif -#endif -#elif defined(GHC_FILESYSTEM_FWD) -#define GHC_INLINE -#ifdef GHC_OS_WINDOWS -#ifndef GHC_FS_API -#define GHC_FS_API extern -#endif -#ifndef GHC_FS_API_CLASS -#define GHC_FS_API_CLASS -#endif -#else -#ifndef GHC_FS_API -#define GHC_FS_API extern -#endif -#ifndef GHC_FS_API_CLASS -#define GHC_FS_API_CLASS -#endif -#endif -#else -#define GHC_EXPAND_IMPL -#define GHC_INLINE inline -#ifndef GHC_FS_API -#define GHC_FS_API -#endif -#ifndef GHC_FS_API_CLASS -#define GHC_FS_API_CLASS -#endif -#endif - -#ifdef GHC_EXPAND_IMPL - -#ifdef GHC_OS_WINDOWS -#include <windows.h> -// additional includes -#include <shellapi.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <wchar.h> -#include <winioctl.h> -#else -#include <dirent.h> -#include <fcntl.h> -#include <limits.h> -#include <sys/param.h> -#include <sys/stat.h> -#include <sys/time.h> -#include <sys/types.h> -#include <unistd.h> -#ifdef GHC_OS_ANDROID -#include <android/api-level.h> -#if __ANDROID_API__ < 12 -#include <sys/syscall.h> -#endif -#include <sys/vfs.h> -#define statvfs statfs -#else -#include <sys/statvfs.h> -#endif -#if !defined(__ANDROID__) || __ANDROID_API__ >= 26 -#include <langinfo.h> -#endif -#endif -#ifdef GHC_OS_MACOS -#include <Availability.h> -#endif - -#if defined(__cpp_impl_three_way_comparison) && defined(__has_include) -#if __has_include(<compare>) -#define GHC_HAS_THREEWAY_COMP -#include <compare> -#endif -#endif - -#include <algorithm> -#include <cctype> -#include <chrono> -#include <clocale> -#include <cstdlib> -#include <cstring> -#include <fstream> -#include <functional> -#include <memory> -#include <stack> -#include <stdexcept> -#include <string> -#include <system_error> -#include <type_traits> -#include <utility> -#include <vector> - -#else // GHC_EXPAND_IMPL - -#if defined(__cpp_impl_three_way_comparison) && defined(__has_include) -#if __has_include(<compare>) -#define GHC_HAS_THREEWAY_COMP -#include <compare> -#endif -#endif -#include <chrono> -#include <fstream> -#include <memory> -#include <stack> -#include <stdexcept> -#include <string> -#include <system_error> -#ifdef GHC_OS_WINDOWS -#include <vector> -#endif -#endif // GHC_EXPAND_IMPL - -// After standard library includes. -// Standard library support for std::string_view. -#if defined(__cpp_lib_string_view) -#define GHC_HAS_STD_STRING_VIEW -#elif defined(_LIBCPP_VERSION) && (_LIBCPP_VERSION >= 4000) && (__cplusplus >= 201402) -#define GHC_HAS_STD_STRING_VIEW -#elif defined(_GLIBCXX_RELEASE) && (_GLIBCXX_RELEASE >= 7) && (__cplusplus >= 201703) -#define GHC_HAS_STD_STRING_VIEW -#elif defined(_MSC_VER) && (_MSC_VER >= 1910 && _MSVC_LANG >= 201703) -#define GHC_HAS_STD_STRING_VIEW -#endif - -// Standard library support for std::experimental::string_view. -#if defined(_LIBCPP_VERSION) && (_LIBCPP_VERSION >= 3700 && _LIBCPP_VERSION < 7000) && (__cplusplus >= 201402) -#define GHC_HAS_STD_EXPERIMENTAL_STRING_VIEW -#elif defined(__GNUC__) && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 9)) || (__GNUC__ > 4)) && (__cplusplus >= 201402) -#define GHC_HAS_STD_EXPERIMENTAL_STRING_VIEW -#endif - -#if defined(GHC_HAS_STD_STRING_VIEW) -#include <string_view> -#elif defined(GHC_HAS_STD_EXPERIMENTAL_STRING_VIEW) -#include <experimental/string_view> -#endif - -//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -// Behaviour Switches (see README.md, should match the config in test/filesystem_test.cpp): -//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -// Enforce C++17 API where possible when compiling for C++20, handles the following cases: -// * fs::path::u8string() returns std::string instead of std::u8string -// #define GHC_FILESYSTEM_ENFORCE_CPP17_API -//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -// LWG #2682 disables the since then invalid use of the copy option create_symlinks on directories -// configure LWG conformance () -#define LWG_2682_BEHAVIOUR -//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -// LWG #2395 makes crate_directory/create_directories not emit an error if there is a regular -// file with that name, it is superseded by P1164R1, so only activate if really needed -// #define LWG_2935_BEHAVIOUR -//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -// LWG #2936 enables new element wise (more expensive) path comparison -// * if this->root_name().native().compare(p.root_name().native()) != 0 return result -// * if this->has_root_directory() and !p.has_root_directory() return -1 -// * if !this->has_root_directory() and p.has_root_directory() return -1 -// * else result of element wise comparison of path iteration where first comparison is != 0 or 0 -// if all comparisons are 0 (on Windows this implementation does case insensitive root_name() -// comparison) -#define LWG_2936_BEHAVIOUR -//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -// LWG #2937 enforces that fs::equivalent emits an error, if !fs::exists(p1)||!exists(p2) -#define LWG_2937_BEHAVIOUR -//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -// UTF8-Everywhere is the original behaviour of ghc::filesystem. But since v1.5 the windows -// version defaults to std::wstring storage backend. Still all std::string will be interpreted -// as UTF-8 encoded. With this define you can enfoce the old behavior on Windows, using -// std::string as backend and for fs::path::native() and char for fs::path::c_str(). This -// needs more conversions so it is (an was before v1.5) slower, bot might help keeping source -// homogeneous in a multi platform project. -// #define GHC_WIN_DISABLE_WSTRING_STORAGE_TYPE -//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -// Raise errors/exceptions when invalid unicode codepoints or UTF-8 sequences are found, -// instead of replacing them with the unicode replacement character (U+FFFD). -// #define GHC_RAISE_UNICODE_ERRORS -//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -// Automatic prefix windows path with "\\?\" if they would break the MAX_PATH length. -// instead of replacing them with the unicode replacement character (U+FFFD). -#ifndef GHC_WIN_DISABLE_AUTO_PREFIXES -#define GHC_WIN_AUTO_PREFIX_LONG_PATH -#endif // GHC_WIN_DISABLE_AUTO_PREFIXES -//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -// ghc::filesystem version in decimal (major * 10000 + minor * 100 + patch) -#define GHC_FILESYSTEM_VERSION 10502L - -#if !defined(GHC_WITH_EXCEPTIONS) && (defined(__EXCEPTIONS) || defined(__cpp_exceptions) || defined(_CPPUNWIND)) -#define GHC_WITH_EXCEPTIONS -#endif -#if !defined(GHC_WITH_EXCEPTIONS) && defined(GHC_RAISE_UNICODE_ERRORS) -#error "Can't raise unicode errors with exception support disabled" -#endif - -namespace ghc { -namespace filesystem { - -#if defined(GHC_HAS_CUSTOM_STRING_VIEW) -#define GHC_WITH_STRING_VIEW -#elif defined(GHC_HAS_STD_STRING_VIEW) -#define GHC_WITH_STRING_VIEW -using std::basic_string_view; -#elif defined(GHC_HAS_STD_EXPERIMENTAL_STRING_VIEW) -#define GHC_WITH_STRING_VIEW -using std::experimental::basic_string_view; -#endif - -// temporary existing exception type for yet unimplemented parts -class GHC_FS_API_CLASS not_implemented_exception : public std::logic_error -{ -public: - not_implemented_exception() - : std::logic_error("function not implemented yet.") - { - } -}; - -template <typename char_type> -class path_helper_base -{ -public: - using value_type = char_type; -#ifdef GHC_OS_WINDOWS - static constexpr value_type preferred_separator = '\\'; -#else - static constexpr value_type preferred_separator = '/'; -#endif -}; - -#if __cplusplus < 201703L -template <typename char_type> -constexpr char_type path_helper_base<char_type>::preferred_separator; -#endif - -#ifdef GHC_OS_WINDOWS -class path; -namespace detail { -bool has_executable_extension(const path& p); -} -#endif - -// 30.10.8 class path -class GHC_FS_API_CLASS path -#if defined(GHC_OS_WINDOWS) && !defined(GHC_WIN_DISABLE_WSTRING_STORAGE_TYPE) -#define GHC_USE_WCHAR_T -#define GHC_NATIVEWP(p) p.c_str() -#define GHC_PLATFORM_LITERAL(str) L##str - : private path_helper_base<std::wstring::value_type> -{ -public: - using path_helper_base<std::wstring::value_type>::value_type; -#else -#define GHC_NATIVEWP(p) p.wstring().c_str() -#define GHC_PLATFORM_LITERAL(str) str - : private path_helper_base<std::string::value_type> -{ -public: - using path_helper_base<std::string::value_type>::value_type; -#endif - using string_type = std::basic_string<value_type>; - using path_helper_base<value_type>::preferred_separator; - - // 30.10.10.1 enumeration format - /// The path format in which the constructor argument is given. - enum format { - generic_format, ///< The generic format, internally used by - ///< ghc::filesystem::path with slashes - native_format, ///< The format native to the current platform this code - ///< is build for - auto_format, ///< Try to auto-detect the format, fallback to native - }; - - template <class T> - struct _is_basic_string : std::false_type - { - }; - template <class CharT, class Traits, class Alloc> - struct _is_basic_string<std::basic_string<CharT, Traits, Alloc>> : std::true_type - { - }; - template <class CharT> - struct _is_basic_string<std::basic_string<CharT, std::char_traits<CharT>, std::allocator<CharT>>> : std::true_type - { - }; -#ifdef GHC_WITH_STRING_VIEW - template <class CharT, class Traits> - struct _is_basic_string<basic_string_view<CharT, Traits>> : std::true_type - { - }; - template <class CharT> - struct _is_basic_string<basic_string_view<CharT, std::char_traits<CharT>>> : std::true_type - { - }; -#endif - - template <typename T1, typename T2 = void> - using path_type = typename std::enable_if<!std::is_same<path, T1>::value, path>::type; - template <typename T> - using path_from_string = typename std::enable_if<_is_basic_string<T>::value || std::is_same<char const*, typename std::decay<T>::type>::value || std::is_same<char*, typename std::decay<T>::type>::value || - std::is_same<wchar_t const*, typename std::decay<T>::type>::value || std::is_same<wchar_t*, typename std::decay<T>::type>::value, - path>::type; - template <typename T> - using path_type_EcharT = typename std::enable_if<std::is_same<T, char>::value || std::is_same<T, char16_t>::value || std::is_same<T, char32_t>::value || std::is_same<T, wchar_t>::value, path>::type; - // 30.10.8.4.1 constructors and destructor - path() noexcept; - path(const path& p); - path(path&& p) noexcept; - path(string_type&& source, format fmt = auto_format); - template <class Source, typename = path_from_string<Source>> - path(const Source& source, format fmt = auto_format); - template <class InputIterator> - path(InputIterator first, InputIterator last, format fmt = auto_format); -#ifdef GHC_WITH_EXCEPTIONS - template <class Source, typename = path_from_string<Source>> - path(const Source& source, const std::locale& loc, format fmt = auto_format); - template <class InputIterator> - path(InputIterator first, InputIterator last, const std::locale& loc, format fmt = auto_format); -#endif - ~path(); - - // 30.10.8.4.2 assignments - path& operator=(const path& p); - path& operator=(path&& p) noexcept; - path& operator=(string_type&& source); - path& assign(string_type&& source); - template <class Source> - path& operator=(const Source& source); - template <class Source> - path& assign(const Source& source); - template <class InputIterator> - path& assign(InputIterator first, InputIterator last); - - // 30.10.8.4.3 appends - path& operator/=(const path& p); - template <class Source> - path& operator/=(const Source& source); - template <class Source> - path& append(const Source& source); - template <class InputIterator> - path& append(InputIterator first, InputIterator last); - - // 30.10.8.4.4 concatenation - path& operator+=(const path& x); - path& operator+=(const string_type& x); -#ifdef GHC_WITH_STRING_VIEW - path& operator+=(basic_string_view<value_type> x); -#endif - path& operator+=(const value_type* x); - path& operator+=(value_type x); - template <class Source> - path_from_string<Source>& operator+=(const Source& x); - template <class EcharT> - path_type_EcharT<EcharT>& operator+=(EcharT x); - template <class Source> - path& concat(const Source& x); - template <class InputIterator> - path& concat(InputIterator first, InputIterator last); - - // 30.10.8.4.5 modifiers - void clear() noexcept; - path& make_preferred(); - path& remove_filename(); - path& replace_filename(const path& replacement); - path& replace_extension(const path& replacement = path()); - void swap(path& rhs) noexcept; - - // 30.10.8.4.6 native format observers - const string_type& native() const noexcept; - const value_type* c_str() const noexcept; - operator string_type() const; - template <class EcharT, class traits = std::char_traits<EcharT>, class Allocator = std::allocator<EcharT>> - std::basic_string<EcharT, traits, Allocator> string(const Allocator& a = Allocator()) const; - std::string string() const; - std::wstring wstring() const; -#if defined(__cpp_lib_char8_t) && !defined(GHC_FILESYSTEM_ENFORCE_CPP17_API) - std::u8string u8string() const; -#else - std::string u8string() const; -#endif - std::u16string u16string() const; - std::u32string u32string() const; - - // 30.10.8.4.7 generic format observers - template <class EcharT, class traits = std::char_traits<EcharT>, class Allocator = std::allocator<EcharT>> - std::basic_string<EcharT, traits, Allocator> generic_string(const Allocator& a = Allocator()) const; - std::string generic_string() const; - std::wstring generic_wstring() const; -#if defined(__cpp_lib_char8_t) && !defined(GHC_FILESYSTEM_ENFORCE_CPP17_API) - std::u8string generic_u8string() const; -#else - std::string generic_u8string() const; -#endif - std::u16string generic_u16string() const; - std::u32string generic_u32string() const; - - // 30.10.8.4.8 compare - int compare(const path& p) const noexcept; - int compare(const string_type& s) const; -#ifdef GHC_WITH_STRING_VIEW - int compare(basic_string_view<value_type> s) const; -#endif - int compare(const value_type* s) const; - - // 30.10.8.4.9 decomposition - path root_name() const; - path root_directory() const; - path root_path() const; - path relative_path() const; - path parent_path() const; - path filename() const; - path stem() const; - path extension() const; - - // 30.10.8.4.10 query - bool empty() const noexcept; - bool has_root_name() const; - bool has_root_directory() const; - bool has_root_path() const; - bool has_relative_path() const; - bool has_parent_path() const; - bool has_filename() const; - bool has_stem() const; - bool has_extension() const; - bool is_absolute() const; - bool is_relative() const; - - // 30.10.8.4.11 generation - path lexically_normal() const; - path lexically_relative(const path& base) const; - path lexically_proximate(const path& base) const; - - // 30.10.8.5 iterators - class iterator; - using const_iterator = iterator; - iterator begin() const; - iterator end() const; - -private: - using impl_value_type = value_type; - using impl_string_type = std::basic_string<impl_value_type>; - friend class directory_iterator; - void append_name(const value_type* name); - static constexpr impl_value_type generic_separator = '/'; - template <typename InputIterator> - class input_iterator_range - { - public: - typedef InputIterator iterator; - typedef InputIterator const_iterator; - typedef typename InputIterator::difference_type difference_type; - - input_iterator_range(const InputIterator& first, const InputIterator& last) - : _first(first) - , _last(last) - { - } - - InputIterator begin() const { return _first; } - InputIterator end() const { return _last; } - - private: - InputIterator _first; - InputIterator _last; - }; - friend void swap(path& lhs, path& rhs) noexcept; - friend size_t hash_value(const path& p) noexcept; - friend path canonical(const path& p, std::error_code& ec); - string_type::size_type root_name_length() const noexcept; - void postprocess_path_with_format(format fmt); - void check_long_path(); - impl_string_type _path; -#ifdef GHC_OS_WINDOWS - void handle_prefixes(); - friend bool detail::has_executable_extension(const path& p); -#ifdef GHC_WIN_AUTO_PREFIX_LONG_PATH - string_type::size_type _prefixLength{0}; -#else // GHC_WIN_AUTO_PREFIX_LONG_PATH - static const string_type::size_type _prefixLength{0}; -#endif // GHC_WIN_AUTO_PREFIX_LONG_PATH -#else - static const string_type::size_type _prefixLength{0}; -#endif -}; - -// 30.10.8.6 path non-member functions -GHC_FS_API void swap(path& lhs, path& rhs) noexcept; -GHC_FS_API size_t hash_value(const path& p) noexcept; -#ifdef GHC_HAS_THREEWAY_COMP -GHC_FS_API std::strong_ordering operator<=>(const path& lhs, const path& rhs) noexcept; -#endif -GHC_FS_API bool operator==(const path& lhs, const path& rhs) noexcept; -GHC_FS_API bool operator!=(const path& lhs, const path& rhs) noexcept; -GHC_FS_API bool operator<(const path& lhs, const path& rhs) noexcept; -GHC_FS_API bool operator<=(const path& lhs, const path& rhs) noexcept; -GHC_FS_API bool operator>(const path& lhs, const path& rhs) noexcept; -GHC_FS_API bool operator>=(const path& lhs, const path& rhs) noexcept; -GHC_FS_API path operator/(const path& lhs, const path& rhs); - -// 30.10.8.6.1 path inserter and extractor -template <class charT, class traits> -std::basic_ostream<charT, traits>& operator<<(std::basic_ostream<charT, traits>& os, const path& p); -template <class charT, class traits> -std::basic_istream<charT, traits>& operator>>(std::basic_istream<charT, traits>& is, path& p); - -// 30.10.8.6.2 path factory functions -template <class Source, typename = path::path_from_string<Source>> -#if defined(__cpp_lib_char8_t) && !defined(GHC_FILESYSTEM_ENFORCE_CPP17_API) -[[deprecated("use ghc::filesystem::path::path() with std::u8string instead")]] -#endif -path u8path(const Source& source); -template <class InputIterator> -#if defined(__cpp_lib_char8_t) && !defined(GHC_FILESYSTEM_ENFORCE_CPP17_API) -[[deprecated("use ghc::filesystem::path::path() with std::u8string instead")]] -#endif -path u8path(InputIterator first, InputIterator last); - -// 30.10.9 class filesystem_error -class GHC_FS_API_CLASS filesystem_error : public std::system_error -{ -public: - filesystem_error(const std::string& what_arg, std::error_code ec); - filesystem_error(const std::string& what_arg, const path& p1, std::error_code ec); - filesystem_error(const std::string& what_arg, const path& p1, const path& p2, std::error_code ec); - const path& path1() const noexcept; - const path& path2() const noexcept; - const char* what() const noexcept override; - -private: - std::string _what_arg; - std::error_code _ec; - path _p1, _p2; -}; - -class GHC_FS_API_CLASS path::iterator -{ -public: - using value_type = const path; - using difference_type = std::ptrdiff_t; - using pointer = const path*; - using reference = const path&; - using iterator_category = std::bidirectional_iterator_tag; - - iterator(); - iterator(const path& p, const impl_string_type::const_iterator& pos); - iterator& operator++(); - iterator operator++(int); - iterator& operator--(); - iterator operator--(int); - bool operator==(const iterator& other) const; - bool operator!=(const iterator& other) const; - reference operator*() const; - pointer operator->() const; - -private: - friend class path; - impl_string_type::const_iterator increment(const impl_string_type::const_iterator& pos) const; - impl_string_type::const_iterator decrement(const impl_string_type::const_iterator& pos) const; - void updateCurrent(); - impl_string_type::const_iterator _first; - impl_string_type::const_iterator _last; - impl_string_type::const_iterator _prefix; - impl_string_type::const_iterator _root; - impl_string_type::const_iterator _iter; - path _current; -}; - -struct space_info -{ - uintmax_t capacity; - uintmax_t free; - uintmax_t available; -}; - -// 30.10.10, enumerations -enum class file_type { - none, - not_found, - regular, - directory, - symlink, - block, - character, - fifo, - socket, - unknown, -}; - -enum class perms : uint16_t { - none = 0, - - owner_read = 0400, - owner_write = 0200, - owner_exec = 0100, - owner_all = 0700, - - group_read = 040, - group_write = 020, - group_exec = 010, - group_all = 070, - - others_read = 04, - others_write = 02, - others_exec = 01, - others_all = 07, - - all = 0777, - set_uid = 04000, - set_gid = 02000, - sticky_bit = 01000, - - mask = 07777, - unknown = 0xffff -}; - -enum class perm_options : uint16_t { - replace = 3, - add = 1, - remove = 2, - nofollow = 4, -}; - -enum class copy_options : uint16_t { - none = 0, - - skip_existing = 1, - overwrite_existing = 2, - update_existing = 4, - - recursive = 8, - - copy_symlinks = 0x10, - skip_symlinks = 0x20, - - directories_only = 0x40, - create_symlinks = 0x80, -#ifndef GHC_OS_WEB - create_hard_links = 0x100 -#endif -}; - -enum class directory_options : uint16_t { - none = 0, - follow_directory_symlink = 1, - skip_permission_denied = 2, -}; - -// 30.10.11 class file_status -class GHC_FS_API_CLASS file_status -{ -public: - // 30.10.11.1 constructors and destructor - file_status() noexcept; - explicit file_status(file_type ft, perms prms = perms::unknown) noexcept; - file_status(const file_status&) noexcept; - file_status(file_status&&) noexcept; - ~file_status(); - // assignments: - file_status& operator=(const file_status&) noexcept; - file_status& operator=(file_status&&) noexcept; - // 30.10.11.3 modifiers - void type(file_type ft) noexcept; - void permissions(perms prms) noexcept; - // 30.10.11.2 observers - file_type type() const noexcept; - perms permissions() const noexcept; - friend bool operator==(const file_status& lhs, const file_status& rhs) noexcept { return lhs.type() == rhs.type() && lhs.permissions() == rhs.permissions(); } -private: - file_type _type; - perms _perms; -}; - -using file_time_type = std::chrono::time_point<std::chrono::system_clock>; - -// 30.10.12 Class directory_entry -class GHC_FS_API_CLASS directory_entry -{ -public: - // 30.10.12.1 constructors and destructor - directory_entry() noexcept = default; - directory_entry(const directory_entry&) = default; - directory_entry(directory_entry&&) noexcept = default; -#ifdef GHC_WITH_EXCEPTIONS - explicit directory_entry(const path& p); -#endif - directory_entry(const path& p, std::error_code& ec); - ~directory_entry(); - - // assignments: - directory_entry& operator=(const directory_entry&) = default; - directory_entry& operator=(directory_entry&&) noexcept = default; - - // 30.10.12.2 modifiers -#ifdef GHC_WITH_EXCEPTIONS - void assign(const path& p); - void replace_filename(const path& p); - void refresh(); -#endif - void assign(const path& p, std::error_code& ec); - void replace_filename(const path& p, std::error_code& ec); - void refresh(std::error_code& ec) noexcept; - - // 30.10.12.3 observers - const filesystem::path& path() const noexcept; - operator const filesystem::path&() const noexcept; -#ifdef GHC_WITH_EXCEPTIONS - bool exists() const; - bool is_block_file() const; - bool is_character_file() const; - bool is_directory() const; - bool is_fifo() const; - bool is_other() const; - bool is_regular_file() const; - bool is_socket() const; - bool is_symlink() const; - uintmax_t file_size() const; - file_time_type last_write_time() const; - file_status status() const; - file_status symlink_status() const; -#endif - bool exists(std::error_code& ec) const noexcept; - bool is_block_file(std::error_code& ec) const noexcept; - bool is_character_file(std::error_code& ec) const noexcept; - bool is_directory(std::error_code& ec) const noexcept; - bool is_fifo(std::error_code& ec) const noexcept; - bool is_other(std::error_code& ec) const noexcept; - bool is_regular_file(std::error_code& ec) const noexcept; - bool is_socket(std::error_code& ec) const noexcept; - bool is_symlink(std::error_code& ec) const noexcept; - uintmax_t file_size(std::error_code& ec) const noexcept; - file_time_type last_write_time(std::error_code& ec) const noexcept; - file_status status(std::error_code& ec) const noexcept; - file_status symlink_status(std::error_code& ec) const noexcept; - -#ifndef GHC_OS_WEB -#ifdef GHC_WITH_EXCEPTIONS - uintmax_t hard_link_count() const; -#endif - uintmax_t hard_link_count(std::error_code& ec) const noexcept; -#endif - -#ifdef GHC_HAS_THREEWAY_COMP - std::strong_ordering operator<=>(const directory_entry& rhs) const noexcept; -#endif - bool operator<(const directory_entry& rhs) const noexcept; - bool operator==(const directory_entry& rhs) const noexcept; - bool operator!=(const directory_entry& rhs) const noexcept; - bool operator<=(const directory_entry& rhs) const noexcept; - bool operator>(const directory_entry& rhs) const noexcept; - bool operator>=(const directory_entry& rhs) const noexcept; - -private: - friend class directory_iterator; - filesystem::path _path; - file_status _status; - file_status _symlink_status; - uintmax_t _file_size = 0; -#ifndef GHC_OS_WINDOWS - uintmax_t _hard_link_count = 0; -#endif - time_t _last_write_time = 0; -}; - -// 30.10.13 Class directory_iterator -class GHC_FS_API_CLASS directory_iterator -{ -public: - class GHC_FS_API_CLASS proxy - { - public: - const directory_entry& operator*() const& noexcept { return _dir_entry; } - directory_entry operator*() && noexcept { return std::move(_dir_entry); } - - private: - explicit proxy(const directory_entry& dir_entry) - : _dir_entry(dir_entry) - { - } - friend class directory_iterator; - friend class recursive_directory_iterator; - directory_entry _dir_entry; - }; - using iterator_category = std::input_iterator_tag; - using value_type = directory_entry; - using difference_type = std::ptrdiff_t; - using pointer = const directory_entry*; - using reference = const directory_entry&; - - // 30.10.13.1 member functions - directory_iterator() noexcept; -#ifdef GHC_WITH_EXCEPTIONS - explicit directory_iterator(const path& p); - directory_iterator(const path& p, directory_options options); -#endif - directory_iterator(const path& p, std::error_code& ec) noexcept; - directory_iterator(const path& p, directory_options options, std::error_code& ec) noexcept; - directory_iterator(const directory_iterator& rhs); - directory_iterator(directory_iterator&& rhs) noexcept; - ~directory_iterator(); - directory_iterator& operator=(const directory_iterator& rhs); - directory_iterator& operator=(directory_iterator&& rhs) noexcept; - const directory_entry& operator*() const; - const directory_entry* operator->() const; -#ifdef GHC_WITH_EXCEPTIONS - directory_iterator& operator++(); -#endif - directory_iterator& increment(std::error_code& ec) noexcept; - - // other members as required by 27.2.3, input iterators -#ifdef GHC_WITH_EXCEPTIONS - proxy operator++(int) - { - proxy p{**this}; - ++*this; - return p; - } -#endif - bool operator==(const directory_iterator& rhs) const; - bool operator!=(const directory_iterator& rhs) const; - -private: - friend class recursive_directory_iterator; - class impl; - std::shared_ptr<impl> _impl; -}; - -// 30.10.13.2 directory_iterator non-member functions -GHC_FS_API directory_iterator begin(directory_iterator iter) noexcept; -GHC_FS_API directory_iterator end(const directory_iterator&) noexcept; - -// 30.10.14 class recursive_directory_iterator -class GHC_FS_API_CLASS recursive_directory_iterator -{ -public: - using iterator_category = std::input_iterator_tag; - using value_type = directory_entry; - using difference_type = std::ptrdiff_t; - using pointer = const directory_entry*; - using reference = const directory_entry&; - - // 30.10.14.1 constructors and destructor - recursive_directory_iterator() noexcept; -#ifdef GHC_WITH_EXCEPTIONS - explicit recursive_directory_iterator(const path& p); - recursive_directory_iterator(const path& p, directory_options options); -#endif - recursive_directory_iterator(const path& p, directory_options options, std::error_code& ec) noexcept; - recursive_directory_iterator(const path& p, std::error_code& ec) noexcept; - recursive_directory_iterator(const recursive_directory_iterator& rhs); - recursive_directory_iterator(recursive_directory_iterator&& rhs) noexcept; - ~recursive_directory_iterator(); - - // 30.10.14.1 observers - directory_options options() const; - int depth() const; - bool recursion_pending() const; - - const directory_entry& operator*() const; - const directory_entry* operator->() const; - - // 30.10.14.1 modifiers recursive_directory_iterator& - recursive_directory_iterator& operator=(const recursive_directory_iterator& rhs); - recursive_directory_iterator& operator=(recursive_directory_iterator&& rhs) noexcept; -#ifdef GHC_WITH_EXCEPTIONS - recursive_directory_iterator& operator++(); -#endif - recursive_directory_iterator& increment(std::error_code& ec) noexcept; - -#ifdef GHC_WITH_EXCEPTIONS - void pop(); -#endif - void pop(std::error_code& ec); - void disable_recursion_pending(); - - // other members as required by 27.2.3, input iterators -#ifdef GHC_WITH_EXCEPTIONS - directory_iterator::proxy operator++(int) - { - directory_iterator::proxy proxy{**this}; - ++*this; - return proxy; - } -#endif - bool operator==(const recursive_directory_iterator& rhs) const; - bool operator!=(const recursive_directory_iterator& rhs) const; - -private: - struct recursive_directory_iterator_impl - { - directory_options _options; - bool _recursion_pending; - std::stack<directory_iterator> _dir_iter_stack; - recursive_directory_iterator_impl(directory_options options, bool recursion_pending) - : _options(options) - , _recursion_pending(recursion_pending) - { - } - }; - std::shared_ptr<recursive_directory_iterator_impl> _impl; -}; - -// 30.10.14.2 directory_iterator non-member functions -GHC_FS_API recursive_directory_iterator begin(recursive_directory_iterator iter) noexcept; -GHC_FS_API recursive_directory_iterator end(const recursive_directory_iterator&) noexcept; - -// 30.10.15 filesystem operations -#ifdef GHC_WITH_EXCEPTIONS -GHC_FS_API path absolute(const path& p); -GHC_FS_API path canonical(const path& p); -GHC_FS_API void copy(const path& from, const path& to); -GHC_FS_API void copy(const path& from, const path& to, copy_options options); -GHC_FS_API bool copy_file(const path& from, const path& to); -GHC_FS_API bool copy_file(const path& from, const path& to, copy_options option); -GHC_FS_API void copy_symlink(const path& existing_symlink, const path& new_symlink); -GHC_FS_API bool create_directories(const path& p); -GHC_FS_API bool create_directory(const path& p); -GHC_FS_API bool create_directory(const path& p, const path& attributes); -GHC_FS_API void create_directory_symlink(const path& to, const path& new_symlink); -GHC_FS_API void create_symlink(const path& to, const path& new_symlink); -GHC_FS_API path current_path(); -GHC_FS_API void current_path(const path& p); -GHC_FS_API bool exists(const path& p); -GHC_FS_API bool equivalent(const path& p1, const path& p2); -GHC_FS_API uintmax_t file_size(const path& p); -GHC_FS_API bool is_block_file(const path& p); -GHC_FS_API bool is_character_file(const path& p); -GHC_FS_API bool is_directory(const path& p); -GHC_FS_API bool is_empty(const path& p); -GHC_FS_API bool is_fifo(const path& p); -GHC_FS_API bool is_other(const path& p); -GHC_FS_API bool is_regular_file(const path& p); -GHC_FS_API bool is_socket(const path& p); -GHC_FS_API bool is_symlink(const path& p); -GHC_FS_API file_time_type last_write_time(const path& p); -GHC_FS_API void last_write_time(const path& p, file_time_type new_time); -GHC_FS_API void permissions(const path& p, perms prms, perm_options opts = perm_options::replace); -GHC_FS_API path proximate(const path& p, const path& base = current_path()); -GHC_FS_API path read_symlink(const path& p); -GHC_FS_API path relative(const path& p, const path& base = current_path()); -GHC_FS_API bool remove(const path& p); -GHC_FS_API uintmax_t remove_all(const path& p); -GHC_FS_API void rename(const path& from, const path& to); -GHC_FS_API void resize_file(const path& p, uintmax_t size); -GHC_FS_API space_info space(const path& p); -GHC_FS_API file_status status(const path& p); -GHC_FS_API file_status symlink_status(const path& p); -GHC_FS_API path temp_directory_path(); -GHC_FS_API path weakly_canonical(const path& p); -#endif -GHC_FS_API path absolute(const path& p, std::error_code& ec); -GHC_FS_API path canonical(const path& p, std::error_code& ec); -GHC_FS_API void copy(const path& from, const path& to, std::error_code& ec) noexcept; -GHC_FS_API void copy(const path& from, const path& to, copy_options options, std::error_code& ec) noexcept; -GHC_FS_API bool copy_file(const path& from, const path& to, std::error_code& ec) noexcept; -GHC_FS_API bool copy_file(const path& from, const path& to, copy_options option, std::error_code& ec) noexcept; -GHC_FS_API void copy_symlink(const path& existing_symlink, const path& new_symlink, std::error_code& ec) noexcept; -GHC_FS_API bool create_directories(const path& p, std::error_code& ec) noexcept; -GHC_FS_API bool create_directory(const path& p, std::error_code& ec) noexcept; -GHC_FS_API bool create_directory(const path& p, const path& attributes, std::error_code& ec) noexcept; -GHC_FS_API void create_directory_symlink(const path& to, const path& new_symlink, std::error_code& ec) noexcept; -GHC_FS_API void create_symlink(const path& to, const path& new_symlink, std::error_code& ec) noexcept; -GHC_FS_API path current_path(std::error_code& ec); -GHC_FS_API void current_path(const path& p, std::error_code& ec) noexcept; -GHC_FS_API bool exists(file_status s) noexcept; -GHC_FS_API bool exists(const path& p, std::error_code& ec) noexcept; -GHC_FS_API bool equivalent(const path& p1, const path& p2, std::error_code& ec) noexcept; -GHC_FS_API uintmax_t file_size(const path& p, std::error_code& ec) noexcept; -GHC_FS_API bool is_block_file(file_status s) noexcept; -GHC_FS_API bool is_block_file(const path& p, std::error_code& ec) noexcept; -GHC_FS_API bool is_character_file(file_status s) noexcept; -GHC_FS_API bool is_character_file(const path& p, std::error_code& ec) noexcept; -GHC_FS_API bool is_directory(file_status s) noexcept; -GHC_FS_API bool is_directory(const path& p, std::error_code& ec) noexcept; -GHC_FS_API bool is_empty(const path& p, std::error_code& ec) noexcept; -GHC_FS_API bool is_fifo(file_status s) noexcept; -GHC_FS_API bool is_fifo(const path& p, std::error_code& ec) noexcept; -GHC_FS_API bool is_other(file_status s) noexcept; -GHC_FS_API bool is_other(const path& p, std::error_code& ec) noexcept; -GHC_FS_API bool is_regular_file(file_status s) noexcept; -GHC_FS_API bool is_regular_file(const path& p, std::error_code& ec) noexcept; -GHC_FS_API bool is_socket(file_status s) noexcept; -GHC_FS_API bool is_socket(const path& p, std::error_code& ec) noexcept; -GHC_FS_API bool is_symlink(file_status s) noexcept; -GHC_FS_API bool is_symlink(const path& p, std::error_code& ec) noexcept; -GHC_FS_API file_time_type last_write_time(const path& p, std::error_code& ec) noexcept; -GHC_FS_API void last_write_time(const path& p, file_time_type new_time, std::error_code& ec) noexcept; -GHC_FS_API void permissions(const path& p, perms prms, std::error_code& ec) noexcept; -GHC_FS_API void permissions(const path& p, perms prms, perm_options opts, std::error_code& ec) noexcept; -GHC_FS_API path proximate(const path& p, std::error_code& ec); -GHC_FS_API path proximate(const path& p, const path& base, std::error_code& ec); -GHC_FS_API path read_symlink(const path& p, std::error_code& ec); -GHC_FS_API path relative(const path& p, std::error_code& ec); -GHC_FS_API path relative(const path& p, const path& base, std::error_code& ec); -GHC_FS_API bool remove(const path& p, std::error_code& ec) noexcept; -GHC_FS_API uintmax_t remove_all(const path& p, std::error_code& ec) noexcept; -GHC_FS_API void rename(const path& from, const path& to, std::error_code& ec) noexcept; -GHC_FS_API void resize_file(const path& p, uintmax_t size, std::error_code& ec) noexcept; -GHC_FS_API space_info space(const path& p, std::error_code& ec) noexcept; -GHC_FS_API file_status status(const path& p, std::error_code& ec) noexcept; -GHC_FS_API bool status_known(file_status s) noexcept; -GHC_FS_API file_status symlink_status(const path& p, std::error_code& ec) noexcept; -GHC_FS_API path temp_directory_path(std::error_code& ec) noexcept; -GHC_FS_API path weakly_canonical(const path& p, std::error_code& ec) noexcept; - -#ifndef GHC_OS_WEB -#ifdef GHC_WITH_EXCEPTIONS -GHC_FS_API void create_hard_link(const path& to, const path& new_hard_link); -GHC_FS_API uintmax_t hard_link_count(const path& p); -#endif -GHC_FS_API void create_hard_link(const path& to, const path& new_hard_link, std::error_code& ec) noexcept; -GHC_FS_API uintmax_t hard_link_count(const path& p, std::error_code& ec) noexcept; -#endif - -// Non-C++17 add-on std::fstream wrappers with path -template <class charT, class traits = std::char_traits<charT>> -class basic_filebuf : public std::basic_filebuf<charT, traits> -{ -public: - basic_filebuf() {} - ~basic_filebuf() override {} - basic_filebuf(const basic_filebuf&) = delete; - const basic_filebuf& operator=(const basic_filebuf&) = delete; - basic_filebuf<charT, traits>* open(const path& p, std::ios_base::openmode mode) - { -#if defined(GHC_OS_WINDOWS) && !defined(__GLIBCXX__) - return std::basic_filebuf<charT, traits>::open(p.wstring().c_str(), mode) ? this : 0; -#else - return std::basic_filebuf<charT, traits>::open(p.string().c_str(), mode) ? this : 0; -#endif - } -}; - -template <class charT, class traits = std::char_traits<charT>> -class basic_ifstream : public std::basic_ifstream<charT, traits> -{ -public: - basic_ifstream() {} -#if defined(GHC_OS_WINDOWS) && !defined(__GLIBCXX__) - explicit basic_ifstream(const path& p, std::ios_base::openmode mode = std::ios_base::in) - : std::basic_ifstream<charT, traits>(p.wstring().c_str(), mode) - { - } - void open(const path& p, std::ios_base::openmode mode = std::ios_base::in) { std::basic_ifstream<charT, traits>::open(p.wstring().c_str(), mode); } -#else - explicit basic_ifstream(const path& p, std::ios_base::openmode mode = std::ios_base::in) - : std::basic_ifstream<charT, traits>(p.string().c_str(), mode) - { - } - void open(const path& p, std::ios_base::openmode mode = std::ios_base::in) { std::basic_ifstream<charT, traits>::open(p.string().c_str(), mode); } -#endif - basic_ifstream(const basic_ifstream&) = delete; - const basic_ifstream& operator=(const basic_ifstream&) = delete; - ~basic_ifstream() override {} -}; - -template <class charT, class traits = std::char_traits<charT>> -class basic_ofstream : public std::basic_ofstream<charT, traits> -{ -public: - basic_ofstream() {} -#if defined(GHC_OS_WINDOWS) && !defined(__GLIBCXX__) - explicit basic_ofstream(const path& p, std::ios_base::openmode mode = std::ios_base::out) - : std::basic_ofstream<charT, traits>(p.wstring().c_str(), mode) - { - } - void open(const path& p, std::ios_base::openmode mode = std::ios_base::out) { std::basic_ofstream<charT, traits>::open(p.wstring().c_str(), mode); } -#else - explicit basic_ofstream(const path& p, std::ios_base::openmode mode = std::ios_base::out) - : std::basic_ofstream<charT, traits>(p.string().c_str(), mode) - { - } - void open(const path& p, std::ios_base::openmode mode = std::ios_base::out) { std::basic_ofstream<charT, traits>::open(p.string().c_str(), mode); } -#endif - basic_ofstream(const basic_ofstream&) = delete; - const basic_ofstream& operator=(const basic_ofstream&) = delete; - ~basic_ofstream() override {} -}; - -template <class charT, class traits = std::char_traits<charT>> -class basic_fstream : public std::basic_fstream<charT, traits> -{ -public: - basic_fstream() {} -#if defined(GHC_OS_WINDOWS) && !defined(__GLIBCXX__) - explicit basic_fstream(const path& p, std::ios_base::openmode mode = std::ios_base::in | std::ios_base::out) - : std::basic_fstream<charT, traits>(p.wstring().c_str(), mode) - { - } - void open(const path& p, std::ios_base::openmode mode = std::ios_base::in | std::ios_base::out) { std::basic_fstream<charT, traits>::open(p.wstring().c_str(), mode); } -#else - explicit basic_fstream(const path& p, std::ios_base::openmode mode = std::ios_base::in | std::ios_base::out) - : std::basic_fstream<charT, traits>(p.string().c_str(), mode) - { - } - void open(const path& p, std::ios_base::openmode mode = std::ios_base::in | std::ios_base::out) { std::basic_fstream<charT, traits>::open(p.string().c_str(), mode); } -#endif - basic_fstream(const basic_fstream&) = delete; - const basic_fstream& operator=(const basic_fstream&) = delete; - ~basic_fstream() override {} -}; - -typedef basic_filebuf<char> filebuf; -typedef basic_filebuf<wchar_t> wfilebuf; -typedef basic_ifstream<char> ifstream; -typedef basic_ifstream<wchar_t> wifstream; -typedef basic_ofstream<char> ofstream; -typedef basic_ofstream<wchar_t> wofstream; -typedef basic_fstream<char> fstream; -typedef basic_fstream<wchar_t> wfstream; - -class GHC_FS_API_CLASS u8arguments -{ -public: - u8arguments(int& argc, char**& argv); - ~u8arguments() - { - _refargc = _argc; - _refargv = _argv; - } - - bool valid() const { return _isvalid; } - -private: - int _argc; - char** _argv; - int& _refargc; - char**& _refargv; - bool _isvalid; -#ifdef GHC_OS_WINDOWS - std::vector<std::string> _args; - std::vector<char*> _argp; -#endif -}; - -//------------------------------------------------------------------------------------------------- -// Implementation -//------------------------------------------------------------------------------------------------- - -namespace detail { -enum utf8_states_t { S_STRT = 0, S_RJCT = 8 }; -GHC_FS_API void appendUTF8(std::string& str, uint32_t unicode); -GHC_FS_API bool is_surrogate(uint32_t c); -GHC_FS_API bool is_high_surrogate(uint32_t c); -GHC_FS_API bool is_low_surrogate(uint32_t c); -GHC_FS_API unsigned consumeUtf8Fragment(const unsigned state, const uint8_t fragment, uint32_t& codepoint); -enum class portable_error { - none = 0, - exists, - not_found, - not_supported, - not_implemented, - invalid_argument, - is_a_directory, -}; -GHC_FS_API std::error_code make_error_code(portable_error err); -#ifdef GHC_OS_WINDOWS -GHC_FS_API std::error_code make_system_error(uint32_t err = 0); -#else -GHC_FS_API std::error_code make_system_error(int err = 0); -#endif -} // namespace detail - -namespace detail { - -#ifdef GHC_EXPAND_IMPL - -GHC_INLINE std::error_code make_error_code(portable_error err) -{ -#ifdef GHC_OS_WINDOWS - switch (err) { - case portable_error::none: - return std::error_code(); - case portable_error::exists: - return std::error_code(ERROR_ALREADY_EXISTS, std::system_category()); - case portable_error::not_found: - return std::error_code(ERROR_PATH_NOT_FOUND, std::system_category()); - case portable_error::not_supported: - return std::error_code(ERROR_NOT_SUPPORTED, std::system_category()); - case portable_error::not_implemented: - return std::error_code(ERROR_CALL_NOT_IMPLEMENTED, std::system_category()); - case portable_error::invalid_argument: - return std::error_code(ERROR_INVALID_PARAMETER, std::system_category()); - case portable_error::is_a_directory: -#ifdef ERROR_DIRECTORY_NOT_SUPPORTED - return std::error_code(ERROR_DIRECTORY_NOT_SUPPORTED, std::system_category()); -#else - return std::error_code(ERROR_NOT_SUPPORTED, std::system_category()); -#endif - } -#else - switch (err) { - case portable_error::none: - return std::error_code(); - case portable_error::exists: - return std::error_code(EEXIST, std::system_category()); - case portable_error::not_found: - return std::error_code(ENOENT, std::system_category()); - case portable_error::not_supported: - return std::error_code(ENOTSUP, std::system_category()); - case portable_error::not_implemented: - return std::error_code(ENOSYS, std::system_category()); - case portable_error::invalid_argument: - return std::error_code(EINVAL, std::system_category()); - case portable_error::is_a_directory: - return std::error_code(EISDIR, std::system_category()); - } -#endif - return std::error_code(); -} - -#ifdef GHC_OS_WINDOWS -GHC_INLINE std::error_code make_system_error(uint32_t err) -{ - return std::error_code(err ? static_cast<int>(err) : static_cast<int>(::GetLastError()), std::system_category()); -} -#else -GHC_INLINE std::error_code make_system_error(int err) -{ - return std::error_code(err ? err : errno, std::system_category()); -} -#endif - -#endif // GHC_EXPAND_IMPL - -template <typename Enum> -using EnableBitmask = typename std::enable_if<std::is_same<Enum, perms>::value || std::is_same<Enum, perm_options>::value || std::is_same<Enum, copy_options>::value || std::is_same<Enum, directory_options>::value, Enum>::type; -} // namespace detail - -template <typename Enum> -constexpr detail::EnableBitmask<Enum> operator&(Enum X, Enum Y) -{ - using underlying = typename std::underlying_type<Enum>::type; - return static_cast<Enum>(static_cast<underlying>(X) & static_cast<underlying>(Y)); -} - -template <typename Enum> -constexpr detail::EnableBitmask<Enum> operator|(Enum X, Enum Y) -{ - using underlying = typename std::underlying_type<Enum>::type; - return static_cast<Enum>(static_cast<underlying>(X) | static_cast<underlying>(Y)); -} - -template <typename Enum> -constexpr detail::EnableBitmask<Enum> operator^(Enum X, Enum Y) -{ - using underlying = typename std::underlying_type<Enum>::type; - return static_cast<Enum>(static_cast<underlying>(X) ^ static_cast<underlying>(Y)); -} - -template <typename Enum> -constexpr detail::EnableBitmask<Enum> operator~(Enum X) -{ - using underlying = typename std::underlying_type<Enum>::type; - return static_cast<Enum>(~static_cast<underlying>(X)); -} - -template <typename Enum> -detail::EnableBitmask<Enum>& operator&=(Enum& X, Enum Y) -{ - X = X & Y; - return X; -} - -template <typename Enum> -detail::EnableBitmask<Enum>& operator|=(Enum& X, Enum Y) -{ - X = X | Y; - return X; -} - -template <typename Enum> -detail::EnableBitmask<Enum>& operator^=(Enum& X, Enum Y) -{ - X = X ^ Y; - return X; -} - -#ifdef GHC_EXPAND_IMPL - -namespace detail { - -GHC_INLINE bool in_range(uint32_t c, uint32_t lo, uint32_t hi) -{ - return (static_cast<uint32_t>(c - lo) < (hi - lo + 1)); -} - -GHC_INLINE bool is_surrogate(uint32_t c) -{ - return in_range(c, 0xd800, 0xdfff); -} - -GHC_INLINE bool is_high_surrogate(uint32_t c) -{ - return (c & 0xfffffc00) == 0xd800; -} - -GHC_INLINE bool is_low_surrogate(uint32_t c) -{ - return (c & 0xfffffc00) == 0xdc00; -} - -GHC_INLINE void appendUTF8(std::string& str, uint32_t unicode) -{ - if (unicode <= 0x7f) { - str.push_back(static_cast<char>(unicode)); - } - else if (unicode >= 0x80 && unicode <= 0x7ff) { - str.push_back(static_cast<char>((unicode >> 6) + 192)); - str.push_back(static_cast<char>((unicode & 0x3f) + 128)); - } - else if ((unicode >= 0x800 && unicode <= 0xd7ff) || (unicode >= 0xe000 && unicode <= 0xffff)) { - str.push_back(static_cast<char>((unicode >> 12) + 224)); - str.push_back(static_cast<char>(((unicode & 0xfff) >> 6) + 128)); - str.push_back(static_cast<char>((unicode & 0x3f) + 128)); - } - else if (unicode >= 0x10000 && unicode <= 0x10ffff) { - str.push_back(static_cast<char>((unicode >> 18) + 240)); - str.push_back(static_cast<char>(((unicode & 0x3ffff) >> 12) + 128)); - str.push_back(static_cast<char>(((unicode & 0xfff) >> 6) + 128)); - str.push_back(static_cast<char>((unicode & 0x3f) + 128)); - } - else { -#ifdef GHC_RAISE_UNICODE_ERRORS - throw filesystem_error("Illegal code point for unicode character.", str, std::make_error_code(std::errc::illegal_byte_sequence)); -#else - appendUTF8(str, 0xfffd); -#endif - } -} - -// Thanks to Bjoern Hoehrmann (https://bjoern.hoehrmann.de/utf-8/decoder/dfa/) -// and Taylor R Campbell for the ideas to this DFA approach of UTF-8 decoding; -// Generating debugging and shrinking my own DFA from scratch was a day of fun! -GHC_INLINE unsigned consumeUtf8Fragment(const unsigned state, const uint8_t fragment, uint32_t& codepoint) -{ - static const uint32_t utf8_state_info[] = { - // encoded states - 0x11111111u, 0x11111111u, 0x77777777u, 0x77777777u, 0x88888888u, 0x88888888u, 0x88888888u, 0x88888888u, 0x22222299u, 0x22222222u, 0x22222222u, 0x22222222u, 0x3333333au, 0x33433333u, 0x9995666bu, 0x99999999u, - 0x88888880u, 0x22818108u, 0x88888881u, 0x88888882u, 0x88888884u, 0x88888887u, 0x88888886u, 0x82218108u, 0x82281108u, 0x88888888u, 0x88888883u, 0x88888885u, 0u, 0u, 0u, 0u, - }; - uint8_t category = fragment < 128 ? 0 : (utf8_state_info[(fragment >> 3) & 0xf] >> ((fragment & 7) << 2)) & 0xf; - codepoint = (state ? (codepoint << 6) | (fragment & 0x3fu) : (0xffu >> category) & fragment); - return state == S_RJCT ? static_cast<unsigned>(S_RJCT) : static_cast<unsigned>((utf8_state_info[category + 16] >> (state << 2)) & 0xf); -} - -GHC_INLINE bool validUtf8(const std::string& utf8String) -{ - std::string::const_iterator iter = utf8String.begin(); - unsigned utf8_state = S_STRT; - std::uint32_t codepoint = 0; - while (iter < utf8String.end()) { - if ((utf8_state = consumeUtf8Fragment(utf8_state, static_cast<uint8_t>(*iter++), codepoint)) == S_RJCT) { - return false; - } - } - if (utf8_state) { - return false; - } - return true; -} - -} // namespace detail - -#endif - -namespace detail { - -template <class StringType, class Utf8String, typename std::enable_if<path::_is_basic_string<Utf8String>::value && (sizeof(typename Utf8String::value_type) == 1) && (sizeof(typename StringType::value_type) == 1)>::type* = nullptr> -inline StringType fromUtf8(const Utf8String& utf8String, const typename StringType::allocator_type& alloc = typename StringType::allocator_type()) -{ - return StringType(utf8String.begin(), utf8String.end(), alloc); -} - -template <class StringType, class Utf8String, typename std::enable_if<path::_is_basic_string<Utf8String>::value && (sizeof(typename Utf8String::value_type) == 1) && (sizeof(typename StringType::value_type) == 2)>::type* = nullptr> -inline StringType fromUtf8(const Utf8String& utf8String, const typename StringType::allocator_type& alloc = typename StringType::allocator_type()) -{ - StringType result(alloc); - result.reserve(utf8String.length()); - auto iter = utf8String.cbegin(); - unsigned utf8_state = S_STRT; - std::uint32_t codepoint = 0; - while (iter < utf8String.cend()) { - if ((utf8_state = consumeUtf8Fragment(utf8_state, static_cast<uint8_t>(*iter++), codepoint)) == S_STRT) { - if (codepoint <= 0xffff) { - result += static_cast<typename StringType::value_type>(codepoint); - } - else { - codepoint -= 0x10000; - result += static_cast<typename StringType::value_type>((codepoint >> 10) + 0xd800); - result += static_cast<typename StringType::value_type>((codepoint & 0x3ff) + 0xdc00); - } - codepoint = 0; - } - else if (utf8_state == S_RJCT) { -#ifdef GHC_RAISE_UNICODE_ERRORS - throw filesystem_error("Illegal byte sequence for unicode character.", utf8String, std::make_error_code(std::errc::illegal_byte_sequence)); -#else - result += static_cast<typename StringType::value_type>(0xfffd); - utf8_state = S_STRT; - codepoint = 0; -#endif - } - } - if (utf8_state) { -#ifdef GHC_RAISE_UNICODE_ERRORS - throw filesystem_error("Illegal byte sequence for unicode character.", utf8String, std::make_error_code(std::errc::illegal_byte_sequence)); -#else - result += static_cast<typename StringType::value_type>(0xfffd); -#endif - } - return result; -} - -template <class StringType, class Utf8String, typename std::enable_if<path::_is_basic_string<Utf8String>::value && (sizeof(typename Utf8String::value_type) == 1) && (sizeof(typename StringType::value_type) == 4)>::type* = nullptr> -inline StringType fromUtf8(const Utf8String& utf8String, const typename StringType::allocator_type& alloc = typename StringType::allocator_type()) -{ - StringType result(alloc); - result.reserve(utf8String.length()); - auto iter = utf8String.cbegin(); - unsigned utf8_state = S_STRT; - std::uint32_t codepoint = 0; - while (iter < utf8String.cend()) { - if ((utf8_state = consumeUtf8Fragment(utf8_state, static_cast<uint8_t>(*iter++), codepoint)) == S_STRT) { - result += static_cast<typename StringType::value_type>(codepoint); - codepoint = 0; - } - else if (utf8_state == S_RJCT) { -#ifdef GHC_RAISE_UNICODE_ERRORS - throw filesystem_error("Illegal byte sequence for unicode character.", utf8String, std::make_error_code(std::errc::illegal_byte_sequence)); -#else - result += static_cast<typename StringType::value_type>(0xfffd); - utf8_state = S_STRT; - codepoint = 0; -#endif - } - } - if (utf8_state) { -#ifdef GHC_RAISE_UNICODE_ERRORS - throw filesystem_error("Illegal byte sequence for unicode character.", utf8String, std::make_error_code(std::errc::illegal_byte_sequence)); -#else - result += static_cast<typename StringType::value_type>(0xfffd); -#endif - } - return result; -} - -template <class StringType, typename charT, std::size_t N> -inline StringType fromUtf8(const charT (&utf8String)[N]) -{ -#ifdef GHC_WITH_STRING_VIEW - return fromUtf8<StringType>(basic_string_view<charT>(utf8String, N - 1)); -#else - return fromUtf8<StringType>(std::basic_string<charT>(utf8String, N - 1)); -#endif -} - -template <typename strT, typename std::enable_if<path::_is_basic_string<strT>::value && (sizeof(typename strT::value_type) == 1), int>::type size = 1> -inline std::string toUtf8(const strT& unicodeString) -{ - return std::string(unicodeString.begin(), unicodeString.end()); -} - -template <typename strT, typename std::enable_if<path::_is_basic_string<strT>::value && (sizeof(typename strT::value_type) == 2), int>::type size = 2> -inline std::string toUtf8(const strT& unicodeString) -{ - std::string result; - for (auto iter = unicodeString.begin(); iter != unicodeString.end(); ++iter) { - char32_t c = *iter; - if (is_surrogate(c)) { - ++iter; - if (iter != unicodeString.end() && is_high_surrogate(c) && is_low_surrogate(*iter)) { - appendUTF8(result, (char32_t(c) << 10) + *iter - 0x35fdc00); - } - else { -#ifdef GHC_RAISE_UNICODE_ERRORS - throw filesystem_error("Illegal code point for unicode character.", result, std::make_error_code(std::errc::illegal_byte_sequence)); -#else - appendUTF8(result, 0xfffd); - if (iter == unicodeString.end()) { - break; - } -#endif - } - } - else { - appendUTF8(result, c); - } - } - return result; -} - -template <typename strT, typename std::enable_if<path::_is_basic_string<strT>::value && (sizeof(typename strT::value_type) == 4), int>::type size = 4> -inline std::string toUtf8(const strT& unicodeString) -{ - std::string result; - for (auto c : unicodeString) { - appendUTF8(result, static_cast<uint32_t>(c)); - } - return result; -} - -template <typename charT> -inline std::string toUtf8(const charT* unicodeString) -{ -#ifdef GHC_WITH_STRING_VIEW - return toUtf8(basic_string_view<charT, std::char_traits<charT>>(unicodeString)); -#else - return toUtf8(std::basic_string<charT, std::char_traits<charT>>(unicodeString)); -#endif -} - -#ifdef GHC_USE_WCHAR_T -template <class StringType, class WString, typename std::enable_if<path::_is_basic_string<WString>::value && (sizeof(typename WString::value_type) == 2) && (sizeof(typename StringType::value_type) == 1), bool>::type = false> -inline StringType fromWChar(const WString& wString, const typename StringType::allocator_type& alloc = typename StringType::allocator_type()) -{ - auto temp = toUtf8(wString); - return StringType(temp.begin(), temp.end(), alloc); -} - -template <class StringType, class WString, typename std::enable_if<path::_is_basic_string<WString>::value && (sizeof(typename WString::value_type) == 2) && (sizeof(typename StringType::value_type) == 2), bool>::type = false> -inline StringType fromWChar(const WString& wString, const typename StringType::allocator_type& alloc = typename StringType::allocator_type()) -{ - return StringType(wString.begin(), wString.end(), alloc); -} - -template <class StringType, class WString, typename std::enable_if<path::_is_basic_string<WString>::value && (sizeof(typename WString::value_type) == 2) && (sizeof(typename StringType::value_type) == 4), bool>::type = false> -inline StringType fromWChar(const WString& wString, const typename StringType::allocator_type& alloc = typename StringType::allocator_type()) -{ - auto temp = toUtf8(wString); - return fromUtf8<StringType>(temp, alloc); -} - -template <typename strT, typename std::enable_if<path::_is_basic_string<strT>::value && (sizeof(typename strT::value_type) == 1), bool>::type = false> -inline std::wstring toWChar(const strT& unicodeString) -{ - return fromUtf8<std::wstring>(unicodeString); -} - -template <typename strT, typename std::enable_if<path::_is_basic_string<strT>::value && (sizeof(typename strT::value_type) == 2), bool>::type = false> -inline std::wstring toWChar(const strT& unicodeString) -{ - return std::wstring(unicodeString.begin(), unicodeString.end()); -} - -template <typename strT, typename std::enable_if<path::_is_basic_string<strT>::value && (sizeof(typename strT::value_type) == 4), bool>::type = false> -inline std::wstring toWChar(const strT& unicodeString) -{ - auto temp = toUtf8(unicodeString); - return fromUtf8<std::wstring>(temp); -} - -template <typename charT> -inline std::wstring toWChar(const charT* unicodeString) -{ -#ifdef GHC_WITH_STRING_VIEW - return toWChar(basic_string_view<charT, std::char_traits<charT>>(unicodeString)); -#else - return toWChar(std::basic_string<charT, std::char_traits<charT>>(unicodeString)); -#endif -} -#endif // GHC_USE_WCHAR_T - -} // namespace detail - -#ifdef GHC_EXPAND_IMPL - -namespace detail { - -template <typename strT, typename std::enable_if<path::_is_basic_string<strT>::value, bool>::type = true> -GHC_INLINE bool startsWith(const strT& what, const strT& with) -{ - return with.length() <= what.length() && equal(with.begin(), with.end(), what.begin()); -} - -template <typename strT, typename std::enable_if<path::_is_basic_string<strT>::value, bool>::type = true> -GHC_INLINE bool endsWith(const strT& what, const strT& with) -{ - return with.length() <= what.length() && what.compare(what.length() - with.length(), with.size(), with) == 0; -} - -} // namespace detail - -GHC_INLINE void path::check_long_path() -{ -#if defined(GHC_OS_WINDOWS) && defined(GHC_WIN_AUTO_PREFIX_LONG_PATH) - if (is_absolute() && _path.length() >= MAX_PATH - 12 && !detail::startsWith(_path, impl_string_type(GHC_PLATFORM_LITERAL("\\\\?\\")))) { - postprocess_path_with_format(native_format); - } -#endif -} - -GHC_INLINE void path::postprocess_path_with_format(path::format fmt) -{ -#ifdef GHC_RAISE_UNICODE_ERRORS - if (!detail::validUtf8(_path)) { - path t; - t._path = _path; - throw filesystem_error("Illegal byte sequence for unicode character.", t, std::make_error_code(std::errc::illegal_byte_sequence)); - } -#endif - switch (fmt) { -#ifdef GHC_OS_WINDOWS - case path::native_format: - case path::auto_format: - case path::generic_format: - for (auto& c : _path) { - if (c == generic_separator) { - c = preferred_separator; - } - } -#ifdef GHC_WIN_AUTO_PREFIX_LONG_PATH - if (is_absolute() && _path.length() >= MAX_PATH - 12 && !detail::startsWith(_path, impl_string_type(GHC_PLATFORM_LITERAL("\\\\?\\")))) { - _path = GHC_PLATFORM_LITERAL("\\\\?\\") + _path; - } -#endif - handle_prefixes(); - break; -#else - case path::auto_format: - case path::native_format: - case path::generic_format: - // nothing to do - break; -#endif - } - if (_path.length() > _prefixLength + 2 && _path[_prefixLength] == preferred_separator && _path[_prefixLength + 1] == preferred_separator && _path[_prefixLength + 2] != preferred_separator) { - impl_string_type::iterator new_end = std::unique(_path.begin() + static_cast<string_type::difference_type>(_prefixLength) + 2, _path.end(), [](path::value_type lhs, path::value_type rhs) { return lhs == rhs && lhs == preferred_separator; }); - _path.erase(new_end, _path.end()); - } - else { - impl_string_type::iterator new_end = std::unique(_path.begin() + static_cast<string_type::difference_type>(_prefixLength), _path.end(), [](path::value_type lhs, path::value_type rhs) { return lhs == rhs && lhs == preferred_separator; }); - _path.erase(new_end, _path.end()); - } -} - -#endif // GHC_EXPAND_IMPL - -template <class Source, typename> -inline path::path(const Source& source, format fmt) -#ifdef GHC_USE_WCHAR_T - : _path(detail::toWChar(source)) -#else - : _path(detail::toUtf8(source)) -#endif -{ - postprocess_path_with_format(fmt); -} - -template <class Source, typename> -inline path u8path(const Source& source) -{ - return path(source); -} -template <class InputIterator> -inline path u8path(InputIterator first, InputIterator last) -{ - return path(first, last); -} - -template <class InputIterator> -inline path::path(InputIterator first, InputIterator last, format fmt) - : path(std::basic_string<typename std::iterator_traits<InputIterator>::value_type>(first, last), fmt) -{ - // delegated -} - -#ifdef GHC_EXPAND_IMPL - -namespace detail { - -GHC_INLINE bool equals_simple_insensitive(const path::value_type* str1, const path::value_type* str2) -{ -#ifdef GHC_OS_WINDOWS -#ifdef __GNUC__ - while (::tolower((unsigned char)*str1) == ::tolower((unsigned char)*str2++)) { - if (*str1++ == 0) - return true; - } - return false; -#else // __GNUC__ -#ifdef GHC_USE_WCHAR_T - return 0 == ::_wcsicmp(str1, str2); -#else // GHC_USE_WCHAR_T - return 0 == ::_stricmp(str1, str2); -#endif // GHC_USE_WCHAR_T -#endif // __GNUC__ -#else // GHC_OS_WINDOWS - return 0 == ::strcasecmp(str1, str2); -#endif // GHC_OS_WINDOWS -} - -GHC_INLINE int compare_simple_insensitive(const path::value_type* str1, size_t len1, const path::value_type* str2, size_t len2) -{ - while (len1 > 0 && len2 > 0 && ::tolower((unsigned char)*str1) == ::tolower((unsigned char)*str2)) { - --len1; - --len2; - ++str1; - ++str2; - } - if (len1 && len2) { - return *str1 < *str2 ? -1 : 1; - } - if (len1 == 0 && len2 == 0) { - return 0; - } - return len1 == 0 ? -1 : 1; -} - -GHC_INLINE const char* strerror_adapter(char* gnu, char*) -{ - return gnu; -} - -GHC_INLINE const char* strerror_adapter(int posix, char* buffer) -{ - if (posix) { - return "Error in strerror_r!"; - } - return buffer; -} - -template <typename ErrorNumber> -GHC_INLINE std::string systemErrorText(ErrorNumber code = 0) -{ -#if defined(GHC_OS_WINDOWS) - LPVOID msgBuf; - DWORD dw = code ? static_cast<DWORD>(code) : ::GetLastError(); - FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dw, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPWSTR)&msgBuf, 0, NULL); - std::string msg = toUtf8(std::wstring((LPWSTR)msgBuf)); - LocalFree(msgBuf); - return msg; -#else - char buffer[512]; - return strerror_adapter(strerror_r(code ? code : errno, buffer, sizeof(buffer)), buffer); -#endif -} - -#ifdef GHC_OS_WINDOWS -using CreateSymbolicLinkW_fp = BOOLEAN(WINAPI*)(LPCWSTR, LPCWSTR, DWORD); -using CreateHardLinkW_fp = BOOLEAN(WINAPI*)(LPCWSTR, LPCWSTR, LPSECURITY_ATTRIBUTES); - -GHC_INLINE void create_symlink(const path& target_name, const path& new_symlink, bool to_directory, std::error_code& ec) -{ - std::error_code tec; - auto fs = status(target_name, tec); - if ((fs.type() == file_type::directory && !to_directory) || (fs.type() == file_type::regular && to_directory)) { - ec = detail::make_error_code(detail::portable_error::not_supported); - return; - } -#if defined(__GNUC__) && __GNUC__ >= 8 -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wcast-function-type" -#endif - static CreateSymbolicLinkW_fp api_call = reinterpret_cast<CreateSymbolicLinkW_fp>(GetProcAddress(GetModuleHandleW(L"kernel32.dll"), "CreateSymbolicLinkW")); -#if defined(__GNUC__) && __GNUC__ >= 8 -#pragma GCC diagnostic pop -#endif - if (api_call) { - if (api_call(detail::fromUtf8<std::wstring>(new_symlink.u8string()).c_str(), detail::fromUtf8<std::wstring>(target_name.u8string()).c_str(), to_directory ? 1 : 0) == 0) { - auto result = ::GetLastError(); - if (result == ERROR_PRIVILEGE_NOT_HELD && api_call(detail::fromUtf8<std::wstring>(new_symlink.u8string()).c_str(), detail::fromUtf8<std::wstring>(target_name.u8string()).c_str(), to_directory ? 3 : 2) != 0) { - return; - } - ec = detail::make_system_error(result); - } - } - else { - ec = detail::make_system_error(ERROR_NOT_SUPPORTED); - } -} - -GHC_INLINE void create_hardlink(const path& target_name, const path& new_hardlink, std::error_code& ec) -{ -#if defined(__GNUC__) && __GNUC__ >= 8 -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wcast-function-type" -#endif - static CreateHardLinkW_fp api_call = reinterpret_cast<CreateHardLinkW_fp>(GetProcAddress(GetModuleHandleW(L"kernel32.dll"), "CreateHardLinkW")); -#if defined(__GNUC__) && __GNUC__ >= 8 -#pragma GCC diagnostic pop -#endif - if (api_call) { - if (api_call(GHC_NATIVEWP(new_hardlink), GHC_NATIVEWP(target_name), NULL) == 0) { - ec = detail::make_system_error(); - } - } - else { - ec = detail::make_system_error(ERROR_NOT_SUPPORTED); - } -} - -GHC_INLINE path getFullPathName(const wchar_t* p, std::error_code& ec) -{ - ULONG size = ::GetFullPathNameW(p, 0, 0, 0); - if (size) { - std::vector<wchar_t> buf(size, 0); - ULONG s2 = GetFullPathNameW(p, size, buf.data(), nullptr); - if (s2 && s2 < size) { - return path(std::wstring(buf.data(), s2)); - } - } - ec = detail::make_system_error(); - return path(); -} - -#else -GHC_INLINE void create_symlink(const path& target_name, const path& new_symlink, bool, std::error_code& ec) -{ - if (::symlink(target_name.c_str(), new_symlink.c_str()) != 0) { - ec = detail::make_system_error(); - } -} - -#ifndef GHC_OS_WEB -GHC_INLINE void create_hardlink(const path& target_name, const path& new_hardlink, std::error_code& ec) -{ - if (::link(target_name.c_str(), new_hardlink.c_str()) != 0) { - ec = detail::make_system_error(); - } -} -#endif -#endif - -template <typename T> -GHC_INLINE file_status file_status_from_st_mode(T mode) -{ -#ifdef GHC_OS_WINDOWS - file_type ft = file_type::unknown; - if ((mode & _S_IFDIR) == _S_IFDIR) { - ft = file_type::directory; - } - else if ((mode & _S_IFREG) == _S_IFREG) { - ft = file_type::regular; - } - else if ((mode & _S_IFCHR) == _S_IFCHR) { - ft = file_type::character; - } - perms prms = static_cast<perms>(mode & 0xfff); - return file_status(ft, prms); -#else - file_type ft = file_type::unknown; - if (S_ISDIR(mode)) { - ft = file_type::directory; - } - else if (S_ISREG(mode)) { - ft = file_type::regular; - } - else if (S_ISCHR(mode)) { - ft = file_type::character; - } - else if (S_ISBLK(mode)) { - ft = file_type::block; - } - else if (S_ISFIFO(mode)) { - ft = file_type::fifo; - } - else if (S_ISLNK(mode)) { - ft = file_type::symlink; - } - else if (S_ISSOCK(mode)) { - ft = file_type::socket; - } - perms prms = static_cast<perms>(mode & 0xfff); - return file_status(ft, prms); -#endif -} - -GHC_INLINE path resolveSymlink(const path& p, std::error_code& ec) -{ -#ifdef GHC_OS_WINDOWS -#ifndef REPARSE_DATA_BUFFER_HEADER_SIZE - typedef struct _REPARSE_DATA_BUFFER - { - ULONG ReparseTag; - USHORT ReparseDataLength; - USHORT Reserved; - union - { - struct - { - USHORT SubstituteNameOffset; - USHORT SubstituteNameLength; - USHORT PrintNameOffset; - USHORT PrintNameLength; - ULONG Flags; - WCHAR PathBuffer[1]; - } SymbolicLinkReparseBuffer; - struct - { - USHORT SubstituteNameOffset; - USHORT SubstituteNameLength; - USHORT PrintNameOffset; - USHORT PrintNameLength; - WCHAR PathBuffer[1]; - } MountPointReparseBuffer; - struct - { - UCHAR DataBuffer[1]; - } GenericReparseBuffer; - } DUMMYUNIONNAME; - } REPARSE_DATA_BUFFER; -#ifndef MAXIMUM_REPARSE_DATA_BUFFER_SIZE -#define MAXIMUM_REPARSE_DATA_BUFFER_SIZE (16 * 1024) -#endif -#endif - - std::shared_ptr<void> file(CreateFileW(GHC_NATIVEWP(p), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS, 0), CloseHandle); - if (file.get() == INVALID_HANDLE_VALUE) { - ec = detail::make_system_error(); - return path(); - } - - std::shared_ptr<REPARSE_DATA_BUFFER> reparseData((REPARSE_DATA_BUFFER*)std::calloc(1, MAXIMUM_REPARSE_DATA_BUFFER_SIZE), std::free); - ULONG bufferUsed; - path result; - if (DeviceIoControl(file.get(), FSCTL_GET_REPARSE_POINT, 0, 0, reparseData.get(), MAXIMUM_REPARSE_DATA_BUFFER_SIZE, &bufferUsed, 0)) { - if (IsReparseTagMicrosoft(reparseData->ReparseTag)) { - switch (reparseData->ReparseTag) { - case IO_REPARSE_TAG_SYMLINK: { - auto printName = std::wstring(&reparseData->SymbolicLinkReparseBuffer.PathBuffer[reparseData->SymbolicLinkReparseBuffer.PrintNameOffset / sizeof(WCHAR)], reparseData->SymbolicLinkReparseBuffer.PrintNameLength / sizeof(WCHAR)); - auto substituteName = - std::wstring(&reparseData->SymbolicLinkReparseBuffer.PathBuffer[reparseData->SymbolicLinkReparseBuffer.SubstituteNameOffset / sizeof(WCHAR)], reparseData->SymbolicLinkReparseBuffer.SubstituteNameLength / sizeof(WCHAR)); - if (detail::endsWith(substituteName, printName) && detail::startsWith(substituteName, std::wstring(L"\\??\\"))) { - result = printName; - } - else { - result = substituteName; - } - if (reparseData->SymbolicLinkReparseBuffer.Flags & 0x1 /*SYMLINK_FLAG_RELATIVE*/) { - result = p.parent_path() / result; - } - break; - } - case IO_REPARSE_TAG_MOUNT_POINT: - result = std::wstring(&reparseData->MountPointReparseBuffer.PathBuffer[reparseData->MountPointReparseBuffer.SubstituteNameOffset / sizeof(WCHAR)], reparseData->MountPointReparseBuffer.SubstituteNameLength / sizeof(WCHAR)); - break; - default: - break; - } - } - } - else { - ec = detail::make_system_error(); - } - return result; -#else - size_t bufferSize = 256; - while (true) { - std::vector<char> buffer(bufferSize, static_cast<char>(0)); - auto rc = ::readlink(p.c_str(), buffer.data(), buffer.size()); - if (rc < 0) { - ec = detail::make_system_error(); - return path(); - } - else if (rc < static_cast<int>(bufferSize)) { - return path(std::string(buffer.data(), static_cast<std::string::size_type>(rc))); - } - bufferSize *= 2; - } - return path(); -#endif -} - -#ifdef GHC_OS_WINDOWS -GHC_INLINE time_t timeFromFILETIME(const FILETIME& ft) -{ - ULARGE_INTEGER ull; - ull.LowPart = ft.dwLowDateTime; - ull.HighPart = ft.dwHighDateTime; - return static_cast<time_t>(ull.QuadPart / 10000000ULL - 11644473600ULL); -} - -GHC_INLINE void timeToFILETIME(time_t t, FILETIME& ft) -{ - LONGLONG ll; - ll = Int32x32To64(t, 10000000) + 116444736000000000; - ft.dwLowDateTime = static_cast<DWORD>(ll); - ft.dwHighDateTime = static_cast<DWORD>(ll >> 32); -} - -template <typename INFO> -GHC_INLINE uintmax_t hard_links_from_INFO(const INFO* info) -{ - return static_cast<uintmax_t>(-1); -} - -template <> -GHC_INLINE uintmax_t hard_links_from_INFO<BY_HANDLE_FILE_INFORMATION>(const BY_HANDLE_FILE_INFORMATION* info) -{ - return info->nNumberOfLinks; -} - -template <typename INFO> -GHC_INLINE file_status status_from_INFO(const path& p, const INFO* info, std::error_code&, uintmax_t* sz = nullptr, time_t* lwt = nullptr) -{ - file_type ft = file_type::unknown; - if ((info->dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)) { - ft = file_type::symlink; - } - else { - if ((info->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) { - ft = file_type::directory; - } - else { - ft = file_type::regular; - } - } - perms prms = perms::owner_read | perms::group_read | perms::others_read; - if (!(info->dwFileAttributes & FILE_ATTRIBUTE_READONLY)) { - prms = prms | perms::owner_write | perms::group_write | perms::others_write; - } - if (has_executable_extension(p)) { - prms = prms | perms::owner_exec | perms::group_exec | perms::others_exec; - } - if (sz) { - *sz = static_cast<uintmax_t>(info->nFileSizeHigh) << (sizeof(info->nFileSizeHigh) * 8) | info->nFileSizeLow; - } - if (lwt) { - *lwt = detail::timeFromFILETIME(info->ftLastWriteTime); - } - return file_status(ft, prms); -} - -#endif - -GHC_INLINE bool is_not_found_error(std::error_code& ec) -{ -#ifdef GHC_OS_WINDOWS - return ec.value() == ERROR_FILE_NOT_FOUND || ec.value() == ERROR_PATH_NOT_FOUND || ec.value() == ERROR_INVALID_NAME; -#else - return ec.value() == ENOENT || ec.value() == ENOTDIR; -#endif -} - -GHC_INLINE file_status symlink_status_ex(const path& p, std::error_code& ec, uintmax_t* sz = nullptr, uintmax_t* nhl = nullptr, time_t* lwt = nullptr) noexcept -{ -#ifdef GHC_OS_WINDOWS - file_status fs; - WIN32_FILE_ATTRIBUTE_DATA attr; - if (!GetFileAttributesExW(GHC_NATIVEWP(p), GetFileExInfoStandard, &attr)) { - ec = detail::make_system_error(); - } - else { - ec.clear(); - fs = detail::status_from_INFO(p, &attr, ec, sz, lwt); - if (nhl) { - *nhl = 0; - } - if (attr.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) { - fs.type(file_type::symlink); - } - } - if (detail::is_not_found_error(ec)) { - return file_status(file_type::not_found); - } - return ec ? file_status(file_type::none) : fs; -#else - (void)sz; - (void)nhl; - (void)lwt; - struct ::stat fs; - auto result = ::lstat(p.c_str(), &fs); - if (result == 0) { - ec.clear(); - file_status f_s = detail::file_status_from_st_mode(fs.st_mode); - return f_s; - } - ec = detail::make_system_error(); - if (detail::is_not_found_error(ec)) { - return file_status(file_type::not_found, perms::unknown); - } - return file_status(file_type::none); -#endif -} - -GHC_INLINE file_status status_ex(const path& p, std::error_code& ec, file_status* sls = nullptr, uintmax_t* sz = nullptr, uintmax_t* nhl = nullptr, time_t* lwt = nullptr, int recurse_count = 0) noexcept -{ - ec.clear(); -#ifdef GHC_OS_WINDOWS - if (recurse_count > 16) { - ec = detail::make_system_error(0x2A9 /*ERROR_STOPPED_ON_SYMLINK*/); - return file_status(file_type::unknown); - } - WIN32_FILE_ATTRIBUTE_DATA attr; - if (!::GetFileAttributesExW(GHC_NATIVEWP(p), GetFileExInfoStandard, &attr)) { - ec = detail::make_system_error(); - } - else if (attr.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) { - path target = resolveSymlink(p, ec); - file_status result; - if (!ec && !target.empty()) { - if (sls) { - *sls = status_from_INFO(p, &attr, ec); - } - return detail::status_ex(target, ec, nullptr, sz, nhl, lwt, recurse_count + 1); - } - return file_status(file_type::unknown); - } - if (ec) { - if (detail::is_not_found_error(ec)) { - return file_status(file_type::not_found); - } - return file_status(file_type::none); - } - if (nhl) { - *nhl = 0; - } - return detail::status_from_INFO(p, &attr, ec, sz, lwt); -#else - (void)recurse_count; - struct ::stat st; - auto result = ::lstat(p.c_str(), &st); - if (result == 0) { - ec.clear(); - file_status fs = detail::file_status_from_st_mode(st.st_mode); - if (sls) { - *sls = fs; - } - if (fs.type() == file_type::symlink) { - result = ::stat(p.c_str(), &st); - if (result == 0) { - fs = detail::file_status_from_st_mode(st.st_mode); - } - } - if (sz) { - *sz = static_cast<uintmax_t>(st.st_size); - } - if (nhl) { - *nhl = st.st_nlink; - } - if (lwt) { - *lwt = st.st_mtime; - } - return fs; - } - else { - ec = detail::make_system_error(); - if (detail::is_not_found_error(ec)) { - return file_status(file_type::not_found, perms::unknown); - } - return file_status(file_type::none); - } -#endif -} - -} // namespace detail - -GHC_INLINE u8arguments::u8arguments(int& argc, char**& argv) - : _argc(argc) - , _argv(argv) - , _refargc(argc) - , _refargv(argv) - , _isvalid(false) -{ -#ifdef GHC_OS_WINDOWS - LPWSTR* p; - p = ::CommandLineToArgvW(::GetCommandLineW(), &argc); - _args.reserve(static_cast<size_t>(argc)); - _argp.reserve(static_cast<size_t>(argc)); - for (size_t i = 0; i < static_cast<size_t>(argc); ++i) { - _args.push_back(detail::toUtf8(std::wstring(p[i]))); - _argp.push_back((char*)_args[i].data()); - } - argv = _argp.data(); - ::LocalFree(p); - _isvalid = true; -#else - std::setlocale(LC_ALL, ""); -#if defined(__ANDROID__) && __ANDROID_API__ < 26 - _isvalid = true; -#else - if (detail::equals_simple_insensitive(::nl_langinfo(CODESET), "UTF-8")) { - _isvalid = true; - } -#endif -#endif -} - -//----------------------------------------------------------------------------- -// 30.10.8.4.1 constructors and destructor - -GHC_INLINE path::path() noexcept {} - -GHC_INLINE path::path(const path& p) - : _path(p._path) -#if defined(GHC_OS_WINDOWS) && defined(GHC_WIN_AUTO_PREFIX_LONG_PATH) - , _prefixLength(p._prefixLength) -#endif -{ -} - -GHC_INLINE path::path(path&& p) noexcept - : _path(std::move(p._path)) -#if defined(GHC_OS_WINDOWS) && defined(GHC_WIN_AUTO_PREFIX_LONG_PATH) - , _prefixLength(p._prefixLength) -#endif -{ -} - -GHC_INLINE path::path(string_type&& source, format fmt) - : _path(std::move(source)) -{ - postprocess_path_with_format(fmt); -} - -#endif // GHC_EXPAND_IMPL - -#ifdef GHC_WITH_EXCEPTIONS -template <class Source, typename> -inline path::path(const Source& source, const std::locale& loc, format fmt) - : path(source, fmt) -{ - std::string locName = loc.name(); - if (!(locName.length() >= 5 && (locName.substr(locName.length() - 5) == "UTF-8" || locName.substr(locName.length() - 5) == "utf-8"))) { - throw filesystem_error("This implementation only supports UTF-8 locales!", path(_path), detail::make_error_code(detail::portable_error::not_supported)); - } -} - -template <class InputIterator> -inline path::path(InputIterator first, InputIterator last, const std::locale& loc, format fmt) - : path(std::basic_string<typename std::iterator_traits<InputIterator>::value_type>(first, last), fmt) -{ - std::string locName = loc.name(); - if (!(locName.length() >= 5 && (locName.substr(locName.length() - 5) == "UTF-8" || locName.substr(locName.length() - 5) == "utf-8"))) { - throw filesystem_error("This implementation only supports UTF-8 locales!", path(_path), detail::make_error_code(detail::portable_error::not_supported)); - } -} -#endif - -#ifdef GHC_EXPAND_IMPL - -GHC_INLINE path::~path() {} - -//----------------------------------------------------------------------------- -// 30.10.8.4.2 assignments - -GHC_INLINE path& path::operator=(const path& p) -{ - _path = p._path; -#if defined(GHC_OS_WINDOWS) && defined(GHC_WIN_AUTO_PREFIX_LONG_PATH) - _prefixLength = p._prefixLength; -#endif - return *this; -} - -GHC_INLINE path& path::operator=(path&& p) noexcept -{ - _path = std::move(p._path); -#if defined(GHC_OS_WINDOWS) && defined(GHC_WIN_AUTO_PREFIX_LONG_PATH) - _prefixLength = p._prefixLength; -#endif - return *this; -} - -GHC_INLINE path& path::operator=(path::string_type&& source) -{ - return assign(source); -} - -GHC_INLINE path& path::assign(path::string_type&& source) -{ - _path = std::move(source); - postprocess_path_with_format(native_format); - return *this; -} - -#endif // GHC_EXPAND_IMPL - -template <class Source> -inline path& path::operator=(const Source& source) -{ - return assign(source); -} - -template <class Source> -inline path& path::assign(const Source& source) -{ -#ifdef GHC_USE_WCHAR_T - _path.assign(detail::toWChar(source)); -#else - _path.assign(detail::toUtf8(source)); -#endif - postprocess_path_with_format(native_format); - return *this; -} - -template <> -inline path& path::assign<path>(const path& source) -{ - _path = source._path; -#if defined(GHC_OS_WINDOWS) && defined(GHC_WIN_AUTO_PREFIX_LONG_PATH) - _prefixLength = source._prefixLength; -#endif - return *this; -} - -template <class InputIterator> -inline path& path::assign(InputIterator first, InputIterator last) -{ - _path.assign(first, last); - postprocess_path_with_format(native_format); - return *this; -} - -#ifdef GHC_EXPAND_IMPL - -//----------------------------------------------------------------------------- -// 30.10.8.4.3 appends - -GHC_INLINE path& path::operator/=(const path& p) -{ - if (p.empty()) { - // was: if ((!has_root_directory() && is_absolute()) || has_filename()) - if (!_path.empty() && _path[_path.length() - 1] != preferred_separator && _path[_path.length() - 1] != ':') { - _path += preferred_separator; - } - return *this; - } - if ((p.is_absolute() && (_path != root_name()._path || p._path != "/")) || (p.has_root_name() && p.root_name() != root_name())) { - assign(p); - return *this; - } - if (p.has_root_directory()) { - assign(root_name()); - } - else if ((!has_root_directory() && is_absolute()) || has_filename()) { - _path += preferred_separator; - } - auto iter = p.begin(); - bool first = true; - if (p.has_root_name()) { - ++iter; - } - while (iter != p.end()) { - if (!first && !(!_path.empty() && _path[_path.length() - 1] == preferred_separator)) { - _path += preferred_separator; - } - first = false; - _path += (*iter++).native(); - } - check_long_path(); - return *this; -} - -GHC_INLINE void path::append_name(const value_type* name) -{ - if (_path.empty()) { - this->operator/=(path(name)); - } - else { - if (_path.back() != path::preferred_separator) { - _path.push_back(path::preferred_separator); - } - _path += name; - check_long_path(); - } -} - -#endif // GHC_EXPAND_IMPL - -template <class Source> -inline path& path::operator/=(const Source& source) -{ - return append(source); -} - -template <class Source> -inline path& path::append(const Source& source) -{ - return this->operator/=(path(source)); -} - -template <> -inline path& path::append<path>(const path& p) -{ - return this->operator/=(p); -} - -template <class InputIterator> -inline path& path::append(InputIterator first, InputIterator last) -{ - std::basic_string<typename std::iterator_traits<InputIterator>::value_type> part(first, last); - return append(part); -} - -#ifdef GHC_EXPAND_IMPL - -//----------------------------------------------------------------------------- -// 30.10.8.4.4 concatenation - -GHC_INLINE path& path::operator+=(const path& x) -{ - return concat(x._path); -} - -GHC_INLINE path& path::operator+=(const string_type& x) -{ - return concat(x); -} - -#ifdef GHC_WITH_STRING_VIEW -GHC_INLINE path& path::operator+=(basic_string_view<value_type> x) -{ - return concat(x); -} -#endif - -GHC_INLINE path& path::operator+=(const value_type* x) -{ -#ifdef GHC_WITH_STRING_VIEW - basic_string_view<value_type> part(x); -#else - string_type part(x); -#endif - return concat(part); -} - -GHC_INLINE path& path::operator+=(value_type x) -{ -#ifdef GHC_OS_WINDOWS - if (x == generic_separator) { - x = preferred_separator; - } -#endif - if (_path.empty() || _path.back() != preferred_separator) { - _path += x; - } - check_long_path(); - return *this; -} - -#endif // GHC_EXPAND_IMPL - -template <class Source> -inline path::path_from_string<Source>& path::operator+=(const Source& x) -{ - return concat(x); -} - -template <class EcharT> -inline path::path_type_EcharT<EcharT>& path::operator+=(EcharT x) -{ -#ifdef GHC_WITH_STRING_VIEW - basic_string_view<EcharT> part(&x, 1); -#else - std::basic_string<EcharT> part(1, x); -#endif - concat(part); - return *this; -} - -template <class Source> -inline path& path::concat(const Source& x) -{ - path p(x); - _path += p._path; - postprocess_path_with_format(native_format); - return *this; -} -template <class InputIterator> -inline path& path::concat(InputIterator first, InputIterator last) -{ - _path.append(first, last); - postprocess_path_with_format(native_format); - return *this; -} - -#ifdef GHC_EXPAND_IMPL - -//----------------------------------------------------------------------------- -// 30.10.8.4.5 modifiers -GHC_INLINE void path::clear() noexcept -{ - _path.clear(); -#if defined(GHC_OS_WINDOWS) && defined(GHC_WIN_AUTO_PREFIX_LONG_PATH) - _prefixLength = 0; -#endif -} - -GHC_INLINE path& path::make_preferred() -{ - // as this filesystem implementation only uses generic_format - // internally, this must be a no-op - return *this; -} - -GHC_INLINE path& path::remove_filename() -{ - if (has_filename()) { - _path.erase(_path.size() - filename()._path.size()); - } - return *this; -} - -GHC_INLINE path& path::replace_filename(const path& replacement) -{ - remove_filename(); - return append(replacement); -} - -GHC_INLINE path& path::replace_extension(const path& replacement) -{ - if (has_extension()) { - _path.erase(_path.size() - extension()._path.size()); - } - if (!replacement.empty() && replacement._path[0] != '.') { - _path += '.'; - } - return concat(replacement); -} - -GHC_INLINE void path::swap(path& rhs) noexcept -{ - _path.swap(rhs._path); -#if defined(GHC_OS_WINDOWS) && defined(GHC_WIN_AUTO_PREFIX_LONG_PATH) - std::swap(_prefixLength, rhs._prefixLength); -#endif -} - -//----------------------------------------------------------------------------- -// 30.10.8.4.6, native format observers -GHC_INLINE const path::string_type& path::native() const noexcept -{ - return _path; -} - -GHC_INLINE const path::value_type* path::c_str() const noexcept -{ - return native().c_str(); -} - -GHC_INLINE path::operator path::string_type() const -{ - return native(); -} - -#endif // GHC_EXPAND_IMPL - -template <class EcharT, class traits, class Allocator> -inline std::basic_string<EcharT, traits, Allocator> path::string(const Allocator& a) const -{ -#ifdef GHC_USE_WCHAR_T - return detail::fromWChar<std::basic_string<EcharT, traits, Allocator>>(_path, a); -#else - return detail::fromUtf8<std::basic_string<EcharT, traits, Allocator>>(_path, a); -#endif -} - -#ifdef GHC_EXPAND_IMPL - -GHC_INLINE std::string path::string() const -{ -#ifdef GHC_USE_WCHAR_T - return detail::toUtf8(native()); -#else - return native(); -#endif -} - -GHC_INLINE std::wstring path::wstring() const -{ -#ifdef GHC_USE_WCHAR_T - return native(); -#else - return detail::fromUtf8<std::wstring>(native()); -#endif -} - -#if defined(__cpp_lib_char8_t) && !defined(GHC_FILESYSTEM_ENFORCE_CPP17_API) -GHC_INLINE std::u8string path::u8string() const -{ -#ifdef GHC_USE_WCHAR_T - return std::u8string(reinterpret_cast<const char8_t*>(detail::toUtf8(native()).c_str())); -#else - return std::u8string(reinterpret_cast<const char8_t*>(c_str())); -#endif -} -#else -GHC_INLINE std::string path::u8string() const -{ -#ifdef GHC_USE_WCHAR_T - return detail::toUtf8(native()); -#else - return native(); -#endif -} -#endif - -GHC_INLINE std::u16string path::u16string() const -{ - // TODO: optimize - return detail::fromUtf8<std::u16string>(string()); -} - -GHC_INLINE std::u32string path::u32string() const -{ - // TODO: optimize - return detail::fromUtf8<std::u32string>(string()); -} - -#endif // GHC_EXPAND_IMPL - -//----------------------------------------------------------------------------- -// 30.10.8.4.7, generic format observers -template <class EcharT, class traits, class Allocator> -inline std::basic_string<EcharT, traits, Allocator> path::generic_string(const Allocator& a) const -{ -#ifdef GHC_OS_WINDOWS -#ifdef GHC_USE_WCHAR_T - auto result = detail::fromWChar<std::basic_string<EcharT, traits, Allocator>, path::string_type>(_path, a); -#else - auto result = detail::fromUtf8<std::basic_string<EcharT, traits, Allocator>>(_path, a); -#endif - for (auto& c : result) { - if (c == preferred_separator) { - c = generic_separator; - } - } - return result; -#else - return detail::fromUtf8<std::basic_string<EcharT, traits, Allocator>>(_path, a); -#endif -} - -#ifdef GHC_EXPAND_IMPL - -GHC_INLINE std::string path::generic_string() const -{ -#ifdef GHC_OS_WINDOWS - return generic_string<std::string::value_type, std::string::traits_type, std::string::allocator_type>(); -#else - return _path; -#endif -} - -GHC_INLINE std::wstring path::generic_wstring() const -{ -#ifdef GHC_OS_WINDOWS - return generic_string<std::wstring::value_type, std::wstring::traits_type, std::wstring::allocator_type>(); -#else - return detail::fromUtf8<std::wstring>(_path); -#endif -} // namespace filesystem - -#if defined(__cpp_lib_char8_t) && !defined(GHC_FILESYSTEM_ENFORCE_CPP17_API) -GHC_INLINE std::u8string path::generic_u8string() const -{ -#ifdef GHC_OS_WINDOWS - return generic_string<std::u8string::value_type, std::u8string::traits_type, std::u8string::allocator_type>(); -#else - return std::u8string(reinterpret_cast<const char8_t*>(_path.c_str())); -#endif -} -#else -GHC_INLINE std::string path::generic_u8string() const -{ -#ifdef GHC_OS_WINDOWS - return generic_string<std::string::value_type, std::string::traits_type, std::string::allocator_type>(); -#else - return _path; -#endif -} -#endif - -GHC_INLINE std::u16string path::generic_u16string() const -{ -#ifdef GHC_OS_WINDOWS - return generic_string<std::u16string::value_type, std::u16string::traits_type, std::u16string::allocator_type>(); -#else - return detail::fromUtf8<std::u16string>(_path); -#endif -} - -GHC_INLINE std::u32string path::generic_u32string() const -{ -#ifdef GHC_OS_WINDOWS - return generic_string<std::u32string::value_type, std::u32string::traits_type, std::u32string::allocator_type>(); -#else - return detail::fromUtf8<std::u32string>(_path); -#endif -} - -//----------------------------------------------------------------------------- -// 30.10.8.4.8, compare -GHC_INLINE int path::compare(const path& p) const noexcept -{ -#ifdef LWG_2936_BEHAVIOUR - auto rnl1 = root_name_length(); - auto rnl2 = p.root_name_length(); -#ifdef GHC_OS_WINDOWS - auto rnc = detail::compare_simple_insensitive(_path.c_str(), rnl1, p._path.c_str(), rnl2); -#else - auto rnc = _path.compare(0, rnl1, p._path, 0, (std::min(rnl1, rnl2))); -#endif - if (rnc) { - return rnc; - } - bool hrd1 = has_root_directory(), hrd2 = p.has_root_directory(); - if (hrd1 != hrd2) { - return hrd1 ? 1 : -1; - } - if (hrd1) { - ++rnl1; - ++rnl2; - } - auto iter1 = _path.begin() + static_cast<int>(rnl1); - auto iter2 = p._path.begin() + static_cast<int>(rnl2); - while (iter1 != _path.end() && iter2 != p._path.end() && *iter1 == *iter2) { - ++iter1; - ++iter2; - } - if (iter1 == _path.end()) { - return iter2 == p._path.end() ? 0 : -1; - } - if (iter2 == p._path.end()) { - return 1; - } - if (*iter1 == preferred_separator) { - return -1; - } - if (*iter2 == preferred_separator) { - return 1; - } - return *iter1 < *iter2 ? -1 : 1; -#else // LWG_2936_BEHAVIOUR -#ifdef GHC_OS_WINDOWS - auto rnl1 = root_name_length(); - auto rnl2 = p.root_name_length(); - auto rnc = detail::compare_simple_insensitive(_path.c_str(), rnl1, p._path.c_str(), rnl2); - if (rnc) { - return rnc; - } - return _path.compare(rnl1, std::string::npos, p._path, rnl2, std::string::npos); -#else - return _path.compare(p._path); -#endif -#endif -} - -GHC_INLINE int path::compare(const string_type& s) const -{ - return compare(path(s)); -} - -#ifdef GHC_WITH_STRING_VIEW -GHC_INLINE int path::compare(basic_string_view<value_type> s) const -{ - return compare(path(s)); -} -#endif - -GHC_INLINE int path::compare(const value_type* s) const -{ - return compare(path(s)); -} - -//----------------------------------------------------------------------------- -// 30.10.8.4.9, decomposition -#ifdef GHC_OS_WINDOWS -GHC_INLINE void path::handle_prefixes() -{ -#if defined(GHC_WIN_AUTO_PREFIX_LONG_PATH) - _prefixLength = 0; - if (_path.length() >= 6 && _path[2] == '?' && std::toupper(static_cast<unsigned char>(_path[4])) >= 'A' && std::toupper(static_cast<unsigned char>(_path[4])) <= 'Z' && _path[5] == ':') { - if (detail::startsWith(_path, impl_string_type(GHC_PLATFORM_LITERAL("\\\\?\\"))) || detail::startsWith(_path, impl_string_type(GHC_PLATFORM_LITERAL("\\??\\")))) { - _prefixLength = 4; - } - } -#endif // GHC_WIN_AUTO_PREFIX_LONG_PATH -} -#endif - -GHC_INLINE path::string_type::size_type path::root_name_length() const noexcept -{ -#ifdef GHC_OS_WINDOWS - if (_path.length() >= _prefixLength + 2 && std::toupper(static_cast<unsigned char>(_path[_prefixLength])) >= 'A' && std::toupper(static_cast<unsigned char>(_path[_prefixLength])) <= 'Z' && _path[_prefixLength + 1] == ':') { - return 2; - } -#endif - if (_path.length() > _prefixLength + 2 && _path[_prefixLength] == preferred_separator && _path[_prefixLength + 1] == preferred_separator && _path[_prefixLength + 2] != preferred_separator && std::isprint(_path[_prefixLength + 2])) { - impl_string_type::size_type pos = _path.find(preferred_separator, _prefixLength + 3); - if (pos == impl_string_type::npos) { - return _path.length(); - } - else { - return pos; - } - } - return 0; -} - -GHC_INLINE path path::root_name() const -{ - return path(_path.substr(_prefixLength, root_name_length()), native_format); -} - -GHC_INLINE path path::root_directory() const -{ - if (has_root_directory()) { - static const path _root_dir(std::string(1, preferred_separator), native_format); - return _root_dir; - } - return path(); -} - -GHC_INLINE path path::root_path() const -{ - return path(root_name().string() + root_directory().string(), native_format); -} - -GHC_INLINE path path::relative_path() const -{ - auto rootPathLen = _prefixLength + root_name_length() + (has_root_directory() ? 1 : 0); - return path(_path.substr((std::min)(rootPathLen, _path.length())), generic_format); -} - -GHC_INLINE path path::parent_path() const -{ - auto rootPathLen = _prefixLength + root_name_length() + (has_root_directory() ? 1 : 0); - if (rootPathLen < _path.length()) { - if (empty()) { - return path(); - } - else { - auto piter = end(); - auto iter = piter.decrement(_path.end()); - if (iter > _path.begin() + static_cast<long>(rootPathLen) && *iter != preferred_separator) { - --iter; - } - return path(_path.begin(), iter, native_format); - } - } - else { - return *this; - } -} - -GHC_INLINE path path::filename() const -{ - return !has_relative_path() ? path() : path(*--end()); -} - -GHC_INLINE path path::stem() const -{ - impl_string_type fn = filename().native(); - if (fn != "." && fn != "..") { - impl_string_type::size_type pos = fn.rfind('.'); - if (pos != impl_string_type::npos && pos > 0) { - return path{fn.substr(0, pos), native_format}; - } - } - return path{fn, native_format}; -} - -GHC_INLINE path path::extension() const -{ - if (has_relative_path()) { - auto iter = end(); - const auto& fn = *--iter; - impl_string_type::size_type pos = fn._path.rfind('.'); - if (pos != std::string::npos && pos > 0) { - return path(fn._path.substr(pos), native_format); - } - } - return path(); -} - -#ifdef GHC_OS_WINDOWS -namespace detail { -GHC_INLINE bool has_executable_extension(const path& p) -{ - if (p.has_relative_path()) { - auto iter = p.end(); - const auto& fn = *--iter; - auto pos = fn._path.find_last_of('.'); - if (pos == std::string::npos || pos == 0 || fn._path.length() - pos != 3) { - return false; - } - const path::value_type* ext = fn._path.c_str() + pos + 1; - if (detail::equals_simple_insensitive(ext, GHC_PLATFORM_LITERAL("exe")) || detail::equals_simple_insensitive(ext, GHC_PLATFORM_LITERAL("cmd")) || detail::equals_simple_insensitive(ext, GHC_PLATFORM_LITERAL("bat")) || detail::equals_simple_insensitive(ext, GHC_PLATFORM_LITERAL("com"))) { - return true; - } - } - return false; -} -} // namespace detail -#endif - -//----------------------------------------------------------------------------- -// 30.10.8.4.10, query -GHC_INLINE bool path::empty() const noexcept -{ - return _path.empty(); -} - -GHC_INLINE bool path::has_root_name() const -{ - return root_name_length() > 0; -} - -GHC_INLINE bool path::has_root_directory() const -{ - auto rootLen = _prefixLength + root_name_length(); - return (_path.length() > rootLen && _path[rootLen] == preferred_separator); -} - -GHC_INLINE bool path::has_root_path() const -{ - return has_root_name() || has_root_directory(); -} - -GHC_INLINE bool path::has_relative_path() const -{ - auto rootPathLen = _prefixLength + root_name_length() + (has_root_directory() ? 1 : 0); - return rootPathLen < _path.length(); -} - -GHC_INLINE bool path::has_parent_path() const -{ - return !parent_path().empty(); -} - -GHC_INLINE bool path::has_filename() const -{ - return has_relative_path() && !filename().empty(); -} - -GHC_INLINE bool path::has_stem() const -{ - return !stem().empty(); -} - -GHC_INLINE bool path::has_extension() const -{ - return !extension().empty(); -} - -GHC_INLINE bool path::is_absolute() const -{ -#ifdef GHC_OS_WINDOWS - return has_root_name() && has_root_directory(); -#else - return has_root_directory(); -#endif -} - -GHC_INLINE bool path::is_relative() const -{ - return !is_absolute(); -} - -//----------------------------------------------------------------------------- -// 30.10.8.4.11, generation -GHC_INLINE path path::lexically_normal() const -{ - path dest; - bool lastDotDot = false; - for (string_type s : *this) { - if (s == ".") { - dest /= ""; - continue; - } - else if (s == ".." && !dest.empty()) { - auto root = root_path(); - if (dest == root) { - continue; - } - else if (*(--dest.end()) != "..") { - if (dest._path.back() == preferred_separator) { - dest._path.pop_back(); - } - dest.remove_filename(); - continue; - } - } - if (!(s.empty() && lastDotDot)) { - dest /= s; - } - lastDotDot = s == ".."; - } - if (dest.empty()) { - dest = "."; - } - return dest; -} - -GHC_INLINE path path::lexically_relative(const path& base) const -{ - if (root_name() != base.root_name() || is_absolute() != base.is_absolute() || (!has_root_directory() && base.has_root_directory())) { - return path(); - } - const_iterator a = begin(), b = base.begin(); - while (a != end() && b != base.end() && *a == *b) { - ++a; - ++b; - } - if (a == end() && b == base.end()) { - return path("."); - } - int count = 0; - for (const auto& element : input_iterator_range<const_iterator>(b, base.end())) { - if (element != "." && element != "" && element != "..") { - ++count; - } - else if (element == "..") { - --count; - } - } - if (count < 0) { - return path(); - } - path result; - for (int i = 0; i < count; ++i) { - result /= ".."; - } - for (const auto& element : input_iterator_range<const_iterator>(a, end())) { - result /= element; - } - return result; -} - -GHC_INLINE path path::lexically_proximate(const path& base) const -{ - path result = lexically_relative(base); - return result.empty() ? *this : result; -} - -//----------------------------------------------------------------------------- -// 30.10.8.5, iterators -GHC_INLINE path::iterator::iterator() {} - -GHC_INLINE path::iterator::iterator(const path& p, const impl_string_type::const_iterator& pos) - : _first(p._path.begin()) - , _last(p._path.end()) - , _prefix(_first + static_cast<string_type::difference_type>(p._prefixLength)) - , _root(p.has_root_directory() ? _first + static_cast<string_type::difference_type>(p._prefixLength + p.root_name_length()) : _last) - , _iter(pos) -{ - if(pos != _last) { - updateCurrent(); - } -} - -GHC_INLINE path::impl_string_type::const_iterator path::iterator::increment(const path::impl_string_type::const_iterator& pos) const -{ - path::impl_string_type::const_iterator i = pos; - bool fromStart = i == _first || i == _prefix; - if (i != _last) { - if (fromStart && i == _first && _prefix > _first) { - i = _prefix; - } - else if (*i++ == preferred_separator) { - // we can only sit on a slash if it is a network name or a root - if (i != _last && *i == preferred_separator) { - if (fromStart && !(i + 1 != _last && *(i + 1) == preferred_separator)) { - // leadind double slashes detected, treat this and the - // following until a slash as one unit - i = std::find(++i, _last, preferred_separator); - } - else { - // skip redundant slashes - while (i != _last && *i == preferred_separator) { - ++i; - } - } - } - } - else { - if (fromStart && i != _last && *i == ':') { - ++i; - } - else { - i = std::find(i, _last, preferred_separator); - } - } - } - return i; -} - -GHC_INLINE path::impl_string_type::const_iterator path::iterator::decrement(const path::impl_string_type::const_iterator& pos) const -{ - path::impl_string_type::const_iterator i = pos; - if (i != _first) { - --i; - // if this is now the root slash or the trailing slash, we are done, - // else check for network name - if (i != _root && (pos != _last || *i != preferred_separator)) { -#ifdef GHC_OS_WINDOWS - static const impl_string_type seps = GHC_PLATFORM_LITERAL("\\:"); - i = std::find_first_of(std::reverse_iterator<path::impl_string_type::const_iterator>(i), std::reverse_iterator<path::impl_string_type::const_iterator>(_first), seps.begin(), seps.end()).base(); - if (i > _first && *i == ':') { - i++; - } -#else - i = std::find(std::reverse_iterator<path::impl_string_type::const_iterator>(i), std::reverse_iterator<path::impl_string_type::const_iterator>(_first), preferred_separator).base(); -#endif - // Now we have to check if this is a network name - if (i - _first == 2 && *_first == preferred_separator && *(_first + 1) == preferred_separator) { - i -= 2; - } - } - } - return i; -} - -GHC_INLINE void path::iterator::updateCurrent() -{ - if ((_iter == _last) || (_iter != _first && _iter != _last && (*_iter == preferred_separator && _iter != _root) && (_iter + 1 == _last))) { - _current.clear(); - } - else { - _current.assign(_iter, increment(_iter)); - } -} - -GHC_INLINE path::iterator& path::iterator::operator++() -{ - _iter = increment(_iter); - while (_iter != _last && // we didn't reach the end - _iter != _root && // this is not a root position - *_iter == preferred_separator && // we are on a separator - (_iter + 1) != _last // the slash is not the last char - ) { - ++_iter; - } - updateCurrent(); - return *this; -} - -GHC_INLINE path::iterator path::iterator::operator++(int) -{ - path::iterator i{*this}; - ++(*this); - return i; -} - -GHC_INLINE path::iterator& path::iterator::operator--() -{ - _iter = decrement(_iter); - updateCurrent(); - return *this; -} - -GHC_INLINE path::iterator path::iterator::operator--(int) -{ - auto i = *this; - --(*this); - return i; -} - -GHC_INLINE bool path::iterator::operator==(const path::iterator& other) const -{ - return _iter == other._iter; -} - -GHC_INLINE bool path::iterator::operator!=(const path::iterator& other) const -{ - return _iter != other._iter; -} - -GHC_INLINE path::iterator::reference path::iterator::operator*() const -{ - return _current; -} - -GHC_INLINE path::iterator::pointer path::iterator::operator->() const -{ - return &_current; -} - -GHC_INLINE path::iterator path::begin() const -{ - return iterator(*this, _path.begin()); -} - -GHC_INLINE path::iterator path::end() const -{ - return iterator(*this, _path.end()); -} - -//----------------------------------------------------------------------------- -// 30.10.8.6, path non-member functions -GHC_INLINE void swap(path& lhs, path& rhs) noexcept -{ - swap(lhs._path, rhs._path); -} - -GHC_INLINE size_t hash_value(const path& p) noexcept -{ - return std::hash<std::string>()(p.generic_string()); -} - -#ifdef GHC_HAS_THREEWAY_COMP -GHC_INLINE std::strong_ordering operator<=>(const path& lhs, const path& rhs) noexcept -{ - return lhs.compare(rhs) <=> 0; -} -#endif - -GHC_INLINE bool operator==(const path& lhs, const path& rhs) noexcept -{ - return lhs.compare(rhs) == 0; -} - -GHC_INLINE bool operator!=(const path& lhs, const path& rhs) noexcept -{ - return !(lhs == rhs); -} - -GHC_INLINE bool operator<(const path& lhs, const path& rhs) noexcept -{ - return lhs.compare(rhs) < 0; -} - -GHC_INLINE bool operator<=(const path& lhs, const path& rhs) noexcept -{ - return lhs.compare(rhs) <= 0; -} - -GHC_INLINE bool operator>(const path& lhs, const path& rhs) noexcept -{ - return lhs.compare(rhs) > 0; -} - -GHC_INLINE bool operator>=(const path& lhs, const path& rhs) noexcept -{ - return lhs.compare(rhs) >= 0; -} - -GHC_INLINE path operator/(const path& lhs, const path& rhs) -{ - path result(lhs); - result /= rhs; - return result; -} - -#endif // GHC_EXPAND_IMPL - -//----------------------------------------------------------------------------- -// 30.10.8.6.1 path inserter and extractor -template <class charT, class traits> -inline std::basic_ostream<charT, traits>& operator<<(std::basic_ostream<charT, traits>& os, const path& p) -{ - os << "\""; - auto ps = p.string<charT, traits>(); - for (auto c : ps) { - if (c == '"' || c == '\\') { - os << '\\'; - } - os << c; - } - os << "\""; - return os; -} - -template <class charT, class traits> -inline std::basic_istream<charT, traits>& operator>>(std::basic_istream<charT, traits>& is, path& p) -{ - std::basic_string<charT, traits> tmp; - charT c; - is >> c; - if (c == '"') { - auto sf = is.flags(); - is >> std::noskipws; - while (is) { - auto c2 = is.get(); - if (is) { - if (c2 == '\\') { - c2 = is.get(); - if (is) { - tmp += static_cast<charT>(c2); - } - } - else if (c2 == '"') { - break; - } - else { - tmp += static_cast<charT>(c2); - } - } - } - if ((sf & std::ios_base::skipws) == std::ios_base::skipws) { - is >> std::skipws; - } - p = path(tmp); - } - else { - is >> tmp; - p = path(static_cast<charT>(c) + tmp); - } - return is; -} - -#ifdef GHC_EXPAND_IMPL - -//----------------------------------------------------------------------------- -// 30.10.9 Class filesystem_error -GHC_INLINE filesystem_error::filesystem_error(const std::string& what_arg, std::error_code ec) - : std::system_error(ec, what_arg) - , _what_arg(what_arg) - , _ec(ec) -{ -} - -GHC_INLINE filesystem_error::filesystem_error(const std::string& what_arg, const path& p1, std::error_code ec) - : std::system_error(ec, what_arg) - , _what_arg(what_arg) - , _ec(ec) - , _p1(p1) -{ - if (!_p1.empty()) { - _what_arg += ": '" + _p1.string() + "'"; - } -} - -GHC_INLINE filesystem_error::filesystem_error(const std::string& what_arg, const path& p1, const path& p2, std::error_code ec) - : std::system_error(ec, what_arg) - , _what_arg(what_arg) - , _ec(ec) - , _p1(p1) - , _p2(p2) -{ - if (!_p1.empty()) { - _what_arg += ": '" + _p1.string() + "'"; - } - if (!_p2.empty()) { - _what_arg += ", '" + _p2.string() + "'"; - } -} - -GHC_INLINE const path& filesystem_error::path1() const noexcept -{ - return _p1; -} - -GHC_INLINE const path& filesystem_error::path2() const noexcept -{ - return _p2; -} - -GHC_INLINE const char* filesystem_error::what() const noexcept -{ - return _what_arg.c_str(); -} - -//----------------------------------------------------------------------------- -// 30.10.15, filesystem operations -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE path absolute(const path& p) -{ - std::error_code ec; - path result = absolute(p, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } - return result; -} -#endif - -GHC_INLINE path absolute(const path& p, std::error_code& ec) -{ - ec.clear(); -#ifdef GHC_OS_WINDOWS - if (p.empty()) { - return absolute(current_path(ec), ec) / ""; - } - ULONG size = ::GetFullPathNameW(GHC_NATIVEWP(p), 0, 0, 0); - if (size) { - std::vector<wchar_t> buf(size, 0); - ULONG s2 = GetFullPathNameW(GHC_NATIVEWP(p), size, buf.data(), nullptr); - if (s2 && s2 < size) { - path result = path(std::wstring(buf.data(), s2)); - if (p.filename() == ".") { - result /= "."; - } - return result; - } - } - ec = detail::make_system_error(); - return path(); -#else - path base = current_path(ec); - if (!ec) { - if (p.empty()) { - return base / p; - } - if (p.has_root_name()) { - if (p.has_root_directory()) { - return p; - } - else { - return p.root_name() / base.root_directory() / base.relative_path() / p.relative_path(); - } - } - else { - if (p.has_root_directory()) { - return base.root_name() / p; - } - else { - return base / p; - } - } - } - ec = detail::make_system_error(); - return path(); -#endif -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE path canonical(const path& p) -{ - std::error_code ec; - auto result = canonical(p, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } - return result; -} -#endif - -GHC_INLINE path canonical(const path& p, std::error_code& ec) -{ - if (p.empty()) { - ec = detail::make_error_code(detail::portable_error::not_found); - return path(); - } - path work = p.is_absolute() ? p : absolute(p, ec); - path result; - - auto fs = status(work, ec); - if (ec) { - return path(); - } - if (fs.type() == file_type::not_found) { - ec = detail::make_error_code(detail::portable_error::not_found); - return path(); - } - bool redo; - do { - auto rootPathLen = work._prefixLength + work.root_name_length() + (work.has_root_directory() ? 1 : 0); - redo = false; - result.clear(); - for (auto pe : work) { - if (pe.empty() || pe == ".") { - continue; - } - else if (pe == "..") { - result = result.parent_path(); - continue; - } - else if ((result / pe).string().length() <= rootPathLen) { - result /= pe; - continue; - } - auto sls = symlink_status(result / pe, ec); - if (ec) { - return path(); - } - if (is_symlink(sls)) { - redo = true; - auto target = read_symlink(result / pe, ec); - if (ec) { - return path(); - } - if (target.is_absolute()) { - result = target; - continue; - } - else { - result /= target; - continue; - } - } - else { - result /= pe; - } - } - work = result; - } while (redo); - ec.clear(); - return result; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE void copy(const path& from, const path& to) -{ - copy(from, to, copy_options::none); -} - -GHC_INLINE void copy(const path& from, const path& to, copy_options options) -{ - std::error_code ec; - copy(from, to, options, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), from, to, ec); - } -} -#endif - -GHC_INLINE void copy(const path& from, const path& to, std::error_code& ec) noexcept -{ - copy(from, to, copy_options::none, ec); -} - -GHC_INLINE void copy(const path& from, const path& to, copy_options options, std::error_code& ec) noexcept -{ - std::error_code tec; - file_status fs_from, fs_to; - ec.clear(); - if ((options & (copy_options::skip_symlinks | copy_options::copy_symlinks | copy_options::create_symlinks)) != copy_options::none) { - fs_from = symlink_status(from, ec); - } - else { - fs_from = status(from, ec); - } - if (!exists(fs_from)) { - if (!ec) { - ec = detail::make_error_code(detail::portable_error::not_found); - } - return; - } - if ((options & (copy_options::skip_symlinks | copy_options::create_symlinks)) != copy_options::none) { - fs_to = symlink_status(to, tec); - } - else { - fs_to = status(to, tec); - } - if (is_other(fs_from) || is_other(fs_to) || (is_directory(fs_from) && is_regular_file(fs_to)) || (exists(fs_to) && equivalent(from, to, ec))) { - ec = detail::make_error_code(detail::portable_error::invalid_argument); - } - else if (is_symlink(fs_from)) { - if ((options & copy_options::skip_symlinks) == copy_options::none) { - if (!exists(fs_to) && (options & copy_options::copy_symlinks) != copy_options::none) { - copy_symlink(from, to, ec); - } - else { - ec = detail::make_error_code(detail::portable_error::invalid_argument); - } - } - } - else if (is_regular_file(fs_from)) { - if ((options & copy_options::directories_only) == copy_options::none) { - if ((options & copy_options::create_symlinks) != copy_options::none) { - create_symlink(from.is_absolute() ? from : canonical(from, ec), to, ec); - } -#ifndef GHC_OS_WEB - else if ((options & copy_options::create_hard_links) != copy_options::none) { - create_hard_link(from, to, ec); - } -#endif - else if (is_directory(fs_to)) { - copy_file(from, to / from.filename(), options, ec); - } - else { - copy_file(from, to, options, ec); - } - } - } -#ifdef LWG_2682_BEHAVIOUR - else if (is_directory(fs_from) && (options & copy_options::create_symlinks) != copy_options::none) { - ec = detail::make_error_code(detail::portable_error::is_a_directory); - } -#endif - else if (is_directory(fs_from) && (options == copy_options::none || (options & copy_options::recursive) != copy_options::none)) { - if (!exists(fs_to)) { - create_directory(to, from, ec); - if (ec) { - return; - } - } - for (auto iter = directory_iterator(from, ec); iter != directory_iterator(); iter.increment(ec)) { - if (!ec) { - copy(iter->path(), to / iter->path().filename(), options | static_cast<copy_options>(0x8000), ec); - } - if (ec) { - return; - } - } - } - return; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool copy_file(const path& from, const path& to) -{ - return copy_file(from, to, copy_options::none); -} - -GHC_INLINE bool copy_file(const path& from, const path& to, copy_options option) -{ - std::error_code ec; - auto result = copy_file(from, to, option, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), from, to, ec); - } - return result; -} -#endif - -GHC_INLINE bool copy_file(const path& from, const path& to, std::error_code& ec) noexcept -{ - return copy_file(from, to, copy_options::none, ec); -} - -GHC_INLINE bool copy_file(const path& from, const path& to, copy_options options, std::error_code& ec) noexcept -{ - std::error_code tecf, tect; - auto sf = status(from, tecf); - auto st = status(to, tect); - bool overwrite = false; - ec.clear(); - if (!is_regular_file(sf)) { - ec = tecf; - return false; - } - if (exists(st) && (!is_regular_file(st) || equivalent(from, to, ec) || (options & (copy_options::skip_existing | copy_options::overwrite_existing | copy_options::update_existing)) == copy_options::none)) { - ec = tect ? tect : detail::make_error_code(detail::portable_error::exists); - return false; - } - if (exists(st)) { - if ((options & copy_options::update_existing) == copy_options::update_existing) { - auto from_time = last_write_time(from, ec); - if (ec) { - ec = detail::make_system_error(); - return false; - } - auto to_time = last_write_time(to, ec); - if (ec) { - ec = detail::make_system_error(); - return false; - } - if (from_time <= to_time) { - return false; - } - } - overwrite = true; - } -#ifdef GHC_OS_WINDOWS - if (!::CopyFileW(GHC_NATIVEWP(from), GHC_NATIVEWP(to), !overwrite)) { - ec = detail::make_system_error(); - return false; - } - return true; -#else - std::vector<char> buffer(16384, '\0'); - int in = -1, out = -1; - if ((in = ::open(from.c_str(), O_RDONLY)) < 0) { - ec = detail::make_system_error(); - return false; - } - int mode = O_CREAT | O_WRONLY | O_TRUNC; - if (!overwrite) { - mode |= O_EXCL; - } - if ((out = ::open(to.c_str(), mode, static_cast<int>(sf.permissions() & perms::all))) < 0) { - ec = detail::make_system_error(); - ::close(in); - return false; - } - ssize_t br, bw; - while ((br = ::read(in, buffer.data(), buffer.size())) > 0) { - ssize_t offset = 0; - do { - if ((bw = ::write(out, buffer.data() + offset, static_cast<size_t>(br))) > 0) { - br -= bw; - offset += bw; - } - else if (bw < 0) { - ec = detail::make_system_error(); - ::close(in); - ::close(out); - return false; - } - } while (br); - } - ::close(in); - ::close(out); - return true; -#endif -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE void copy_symlink(const path& existing_symlink, const path& new_symlink) -{ - std::error_code ec; - copy_symlink(existing_symlink, new_symlink, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), existing_symlink, new_symlink, ec); - } -} -#endif - -GHC_INLINE void copy_symlink(const path& existing_symlink, const path& new_symlink, std::error_code& ec) noexcept -{ - ec.clear(); - auto to = read_symlink(existing_symlink, ec); - if (!ec) { - if (exists(to, ec) && is_directory(to, ec)) { - create_directory_symlink(to, new_symlink, ec); - } - else { - create_symlink(to, new_symlink, ec); - } - } -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool create_directories(const path& p) -{ - std::error_code ec; - auto result = create_directories(p, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } - return result; -} -#endif - -GHC_INLINE bool create_directories(const path& p, std::error_code& ec) noexcept -{ - path current; - ec.clear(); - bool didCreate = false; - for (path::string_type part : p) { - current /= part; - if (current != p.root_name() && current != p.root_path()) { - std::error_code tec; - auto fs = status(current, tec); - if (tec && fs.type() != file_type::not_found) { - ec = tec; - return false; - } - if (!exists(fs)) { - create_directory(current, ec); - if (ec) { - std::error_code tmp_ec; - if (is_directory(current, tmp_ec)) { - ec.clear(); - } - else { - return false; - } - } - didCreate = true; - } -#ifndef LWG_2935_BEHAVIOUR - else if (!is_directory(fs)) { - ec = detail::make_error_code(detail::portable_error::exists); - return false; - } -#endif - } - } - return didCreate; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool create_directory(const path& p) -{ - std::error_code ec; - auto result = create_directory(p, path(), ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } - return result; -} -#endif - -GHC_INLINE bool create_directory(const path& p, std::error_code& ec) noexcept -{ - return create_directory(p, path(), ec); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool create_directory(const path& p, const path& attributes) -{ - std::error_code ec; - auto result = create_directory(p, attributes, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } - return result; -} -#endif - -GHC_INLINE bool create_directory(const path& p, const path& attributes, std::error_code& ec) noexcept -{ - std::error_code tec; - ec.clear(); - auto fs = status(p, tec); -#ifdef LWG_2935_BEHAVIOUR - if (status_known(fs) && exists(fs)) { - return false; - } -#else - if (status_known(fs) && exists(fs) && is_directory(fs)) { - return false; - } -#endif -#ifdef GHC_OS_WINDOWS - if (!attributes.empty()) { - if (!::CreateDirectoryExW(GHC_NATIVEWP(attributes), GHC_NATIVEWP(p), NULL)) { - ec = detail::make_system_error(); - return false; - } - } - else if (!::CreateDirectoryW(GHC_NATIVEWP(p), NULL)) { - ec = detail::make_system_error(); - return false; - } -#else - ::mode_t attribs = static_cast<mode_t>(perms::all); - if (!attributes.empty()) { - struct ::stat fileStat; - if (::stat(attributes.c_str(), &fileStat) != 0) { - ec = detail::make_system_error(); - return false; - } - attribs = fileStat.st_mode; - } - if (::mkdir(p.c_str(), attribs) != 0) { - ec = detail::make_system_error(); - return false; - } -#endif - return true; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE void create_directory_symlink(const path& to, const path& new_symlink) -{ - std::error_code ec; - create_directory_symlink(to, new_symlink, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), to, new_symlink, ec); - } -} -#endif - -GHC_INLINE void create_directory_symlink(const path& to, const path& new_symlink, std::error_code& ec) noexcept -{ - detail::create_symlink(to, new_symlink, true, ec); -} - -#ifndef GHC_OS_WEB -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE void create_hard_link(const path& to, const path& new_hard_link) -{ - std::error_code ec; - create_hard_link(to, new_hard_link, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), to, new_hard_link, ec); - } -} -#endif - -GHC_INLINE void create_hard_link(const path& to, const path& new_hard_link, std::error_code& ec) noexcept -{ - detail::create_hardlink(to, new_hard_link, ec); -} -#endif - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE void create_symlink(const path& to, const path& new_symlink) -{ - std::error_code ec; - create_symlink(to, new_symlink, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), to, new_symlink, ec); - } -} -#endif - -GHC_INLINE void create_symlink(const path& to, const path& new_symlink, std::error_code& ec) noexcept -{ - detail::create_symlink(to, new_symlink, false, ec); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE path current_path() -{ - std::error_code ec; - auto result = current_path(ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), ec); - } - return result; -} -#endif - -GHC_INLINE path current_path(std::error_code& ec) -{ - ec.clear(); -#ifdef GHC_OS_WINDOWS - DWORD pathlen = ::GetCurrentDirectoryW(0, 0); - std::unique_ptr<wchar_t[]> buffer(new wchar_t[size_t(pathlen) + 1]); - if (::GetCurrentDirectoryW(pathlen, buffer.get()) == 0) { - ec = detail::make_system_error(); - return path(); - } - return path(std::wstring(buffer.get()), path::native_format); -#else - size_t pathlen = static_cast<size_t>(std::max(int(::pathconf(".", _PC_PATH_MAX)), int(PATH_MAX))); - std::unique_ptr<char[]> buffer(new char[pathlen + 1]); - if (::getcwd(buffer.get(), pathlen) == nullptr) { - ec = detail::make_system_error(); - return path(); - } - return path(buffer.get()); -#endif -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE void current_path(const path& p) -{ - std::error_code ec; - current_path(p, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } -} -#endif - -GHC_INLINE void current_path(const path& p, std::error_code& ec) noexcept -{ - ec.clear(); -#ifdef GHC_OS_WINDOWS - if (!::SetCurrentDirectoryW(GHC_NATIVEWP(p))) { - ec = detail::make_system_error(); - } -#else - if (::chdir(p.string().c_str()) == -1) { - ec = detail::make_system_error(); - } -#endif -} - -GHC_INLINE bool exists(file_status s) noexcept -{ - return status_known(s) && s.type() != file_type::not_found; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool exists(const path& p) -{ - return exists(status(p)); -} -#endif - -GHC_INLINE bool exists(const path& p, std::error_code& ec) noexcept -{ - file_status s = status(p, ec); - if (status_known(s)) { - ec.clear(); - } - return exists(s); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool equivalent(const path& p1, const path& p2) -{ - std::error_code ec; - bool result = equivalent(p1, p2, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p1, p2, ec); - } - return result; -} -#endif - -GHC_INLINE bool equivalent(const path& p1, const path& p2, std::error_code& ec) noexcept -{ - ec.clear(); -#ifdef GHC_OS_WINDOWS - std::shared_ptr<void> file1(::CreateFileW(GHC_NATIVEWP(p1), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0), CloseHandle); - auto e1 = ::GetLastError(); - std::shared_ptr<void> file2(::CreateFileW(GHC_NATIVEWP(p2), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0), CloseHandle); - if (file1.get() == INVALID_HANDLE_VALUE || file2.get() == INVALID_HANDLE_VALUE) { -#ifdef LWG_2937_BEHAVIOUR - ec = detail::make_system_error(e1 ? e1 : ::GetLastError()); -#else - if (file1 == file2) { - ec = detail::make_system_error(e1 ? e1 : ::GetLastError()); - } -#endif - return false; - } - BY_HANDLE_FILE_INFORMATION inf1, inf2; - if (!::GetFileInformationByHandle(file1.get(), &inf1)) { - ec = detail::make_system_error(); - return false; - } - if (!::GetFileInformationByHandle(file2.get(), &inf2)) { - ec = detail::make_system_error(); - return false; - } - return inf1.ftLastWriteTime.dwLowDateTime == inf2.ftLastWriteTime.dwLowDateTime && inf1.ftLastWriteTime.dwHighDateTime == inf2.ftLastWriteTime.dwHighDateTime && inf1.nFileIndexHigh == inf2.nFileIndexHigh && inf1.nFileIndexLow == inf2.nFileIndexLow && - inf1.nFileSizeHigh == inf2.nFileSizeHigh && inf1.nFileSizeLow == inf2.nFileSizeLow && inf1.dwVolumeSerialNumber == inf2.dwVolumeSerialNumber; -#else - struct ::stat s1, s2; - auto rc1 = ::stat(p1.c_str(), &s1); - auto e1 = errno; - auto rc2 = ::stat(p2.c_str(), &s2); - if (rc1 || rc2) { -#ifdef LWG_2937_BEHAVIOUR - ec = detail::make_system_error(e1 ? e1 : errno); -#else - if (rc1 && rc2) { - ec = detail::make_system_error(e1 ? e1 : errno); - } -#endif - return false; - } - return s1.st_dev == s2.st_dev && s1.st_ino == s2.st_ino && s1.st_size == s2.st_size && s1.st_mtime == s2.st_mtime; -#endif -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE uintmax_t file_size(const path& p) -{ - std::error_code ec; - auto result = file_size(p, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } - return result; -} -#endif - -GHC_INLINE uintmax_t file_size(const path& p, std::error_code& ec) noexcept -{ - ec.clear(); -#ifdef GHC_OS_WINDOWS - WIN32_FILE_ATTRIBUTE_DATA attr; - if (!GetFileAttributesExW(GHC_NATIVEWP(p), GetFileExInfoStandard, &attr)) { - ec = detail::make_system_error(); - return static_cast<uintmax_t>(-1); - } - return static_cast<uintmax_t>(attr.nFileSizeHigh) << (sizeof(attr.nFileSizeHigh) * 8) | attr.nFileSizeLow; -#else - struct ::stat fileStat; - if (::stat(p.c_str(), &fileStat) == -1) { - ec = detail::make_system_error(); - return static_cast<uintmax_t>(-1); - } - return static_cast<uintmax_t>(fileStat.st_size); -#endif -} - -#ifndef GHC_OS_WEB -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE uintmax_t hard_link_count(const path& p) -{ - std::error_code ec; - auto result = hard_link_count(p, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } - return result; -} -#endif - -GHC_INLINE uintmax_t hard_link_count(const path& p, std::error_code& ec) noexcept -{ - ec.clear(); -#ifdef GHC_OS_WINDOWS - uintmax_t result = static_cast<uintmax_t>(-1); - std::shared_ptr<void> file(::CreateFileW(GHC_NATIVEWP(p), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0), CloseHandle); - BY_HANDLE_FILE_INFORMATION inf; - if (file.get() == INVALID_HANDLE_VALUE) { - ec = detail::make_system_error(); - } - else { - if (!::GetFileInformationByHandle(file.get(), &inf)) { - ec = detail::make_system_error(); - } - else { - result = inf.nNumberOfLinks; - } - } - return result; -#else - uintmax_t result = 0; - file_status fs = detail::status_ex(p, ec, nullptr, nullptr, &result, nullptr); - if (fs.type() == file_type::not_found) { - ec = detail::make_error_code(detail::portable_error::not_found); - } - return ec ? static_cast<uintmax_t>(-1) : result; -#endif -} -#endif - -GHC_INLINE bool is_block_file(file_status s) noexcept -{ - return s.type() == file_type::block; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool is_block_file(const path& p) -{ - return is_block_file(status(p)); -} -#endif - -GHC_INLINE bool is_block_file(const path& p, std::error_code& ec) noexcept -{ - return is_block_file(status(p, ec)); -} - -GHC_INLINE bool is_character_file(file_status s) noexcept -{ - return s.type() == file_type::character; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool is_character_file(const path& p) -{ - return is_character_file(status(p)); -} -#endif - -GHC_INLINE bool is_character_file(const path& p, std::error_code& ec) noexcept -{ - return is_character_file(status(p, ec)); -} - -GHC_INLINE bool is_directory(file_status s) noexcept -{ - return s.type() == file_type::directory; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool is_directory(const path& p) -{ - return is_directory(status(p)); -} -#endif - -GHC_INLINE bool is_directory(const path& p, std::error_code& ec) noexcept -{ - return is_directory(status(p, ec)); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool is_empty(const path& p) -{ - if (is_directory(p)) { - return directory_iterator(p) == directory_iterator(); - } - else { - return file_size(p) == 0; - } -} -#endif - -GHC_INLINE bool is_empty(const path& p, std::error_code& ec) noexcept -{ - auto fs = status(p, ec); - if (ec) { - return false; - } - if (is_directory(fs)) { - directory_iterator iter(p, ec); - if (ec) { - return false; - } - return iter == directory_iterator(); - } - else { - auto sz = file_size(p, ec); - if (ec) { - return false; - } - return sz == 0; - } -} - -GHC_INLINE bool is_fifo(file_status s) noexcept -{ - return s.type() == file_type::fifo; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool is_fifo(const path& p) -{ - return is_fifo(status(p)); -} -#endif - -GHC_INLINE bool is_fifo(const path& p, std::error_code& ec) noexcept -{ - return is_fifo(status(p, ec)); -} - -GHC_INLINE bool is_other(file_status s) noexcept -{ - return exists(s) && !is_regular_file(s) && !is_directory(s) && !is_symlink(s); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool is_other(const path& p) -{ - return is_other(status(p)); -} -#endif - -GHC_INLINE bool is_other(const path& p, std::error_code& ec) noexcept -{ - return is_other(status(p, ec)); -} - -GHC_INLINE bool is_regular_file(file_status s) noexcept -{ - return s.type() == file_type::regular; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool is_regular_file(const path& p) -{ - return is_regular_file(status(p)); -} -#endif - -GHC_INLINE bool is_regular_file(const path& p, std::error_code& ec) noexcept -{ - return is_regular_file(status(p, ec)); -} - -GHC_INLINE bool is_socket(file_status s) noexcept -{ - return s.type() == file_type::socket; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool is_socket(const path& p) -{ - return is_socket(status(p)); -} -#endif - -GHC_INLINE bool is_socket(const path& p, std::error_code& ec) noexcept -{ - return is_socket(status(p, ec)); -} - -GHC_INLINE bool is_symlink(file_status s) noexcept -{ - return s.type() == file_type::symlink; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool is_symlink(const path& p) -{ - return is_symlink(symlink_status(p)); -} -#endif - -GHC_INLINE bool is_symlink(const path& p, std::error_code& ec) noexcept -{ - return is_symlink(symlink_status(p, ec)); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE file_time_type last_write_time(const path& p) -{ - std::error_code ec; - auto result = last_write_time(p, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } - return result; -} -#endif - -GHC_INLINE file_time_type last_write_time(const path& p, std::error_code& ec) noexcept -{ - time_t result = 0; - ec.clear(); - file_status fs = detail::status_ex(p, ec, nullptr, nullptr, nullptr, &result); - return ec ? (file_time_type::min)() : std::chrono::system_clock::from_time_t(result); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE void last_write_time(const path& p, file_time_type new_time) -{ - std::error_code ec; - last_write_time(p, new_time, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } -} -#endif - -GHC_INLINE void last_write_time(const path& p, file_time_type new_time, std::error_code& ec) noexcept -{ - ec.clear(); - auto d = new_time.time_since_epoch(); -#ifdef GHC_OS_WINDOWS - std::shared_ptr<void> file(::CreateFileW(GHC_NATIVEWP(p), FILE_WRITE_ATTRIBUTES, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL), ::CloseHandle); - FILETIME ft; - auto tt = std::chrono::duration_cast<std::chrono::microseconds>(d).count() * 10 + 116444736000000000; - ft.dwLowDateTime = static_cast<DWORD>(tt); - ft.dwHighDateTime = static_cast<DWORD>(tt >> 32); - if (!::SetFileTime(file.get(), 0, 0, &ft)) { - ec = detail::make_system_error(); - } -#elif defined(GHC_OS_MACOS) -#ifdef __MAC_OS_X_VERSION_MIN_REQUIRED -#if __MAC_OS_X_VERSION_MIN_REQUIRED < 101300 - struct ::stat fs; - if (::stat(p.c_str(), &fs) == 0) { - struct ::timeval tv[2]; - tv[0].tv_sec = fs.st_atimespec.tv_sec; - tv[0].tv_usec = static_cast<int>(fs.st_atimespec.tv_nsec / 1000); - tv[1].tv_sec = std::chrono::duration_cast<std::chrono::seconds>(d).count(); - tv[1].tv_usec = static_cast<int>(std::chrono::duration_cast<std::chrono::microseconds>(d).count() % 1000000); - if (::utimes(p.c_str(), tv) == 0) { - return; - } - } - ec = detail::make_system_error(); - return; -#else - struct ::timespec times[2]; - times[0].tv_sec = 0; - times[0].tv_nsec = UTIME_OMIT; - times[1].tv_sec = std::chrono::duration_cast<std::chrono::seconds>(d).count(); - times[1].tv_nsec = 0; // std::chrono::duration_cast<std::chrono::nanoseconds>(d).count() % 1000000000; - if (::utimensat(AT_FDCWD, p.c_str(), times, AT_SYMLINK_NOFOLLOW) != 0) { - ec = detail::make_system_error(); - } - return; -#endif -#endif -#else -#ifndef UTIME_OMIT -#define UTIME_OMIT ((1l << 30) - 2l) -#endif - struct ::timespec times[2]; - times[0].tv_sec = 0; - times[0].tv_nsec = UTIME_OMIT; - times[1].tv_sec = static_cast<decltype(times[1].tv_sec)>(std::chrono::duration_cast<std::chrono::seconds>(d).count()); - times[1].tv_nsec = static_cast<decltype(times[1].tv_nsec)>(std::chrono::duration_cast<std::chrono::nanoseconds>(d).count() % 1000000000); -#if defined(__ANDROID_API__) && __ANDROID_API__ < 12 - if (syscall(__NR_utimensat, AT_FDCWD, p.c_str(), times, AT_SYMLINK_NOFOLLOW) != 0) { -#else - if (::utimensat(AT_FDCWD, p.c_str(), times, AT_SYMLINK_NOFOLLOW) != 0) { -#endif - ec = detail::make_system_error(); - } - return; -#endif -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE void permissions(const path& p, perms prms, perm_options opts) -{ - std::error_code ec; - permissions(p, prms, opts, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } -} -#endif - -GHC_INLINE void permissions(const path& p, perms prms, std::error_code& ec) noexcept -{ - permissions(p, prms, perm_options::replace, ec); -} - -GHC_INLINE void permissions(const path& p, perms prms, perm_options opts, std::error_code& ec) noexcept -{ - if (static_cast<int>(opts & (perm_options::replace | perm_options::add | perm_options::remove)) == 0) { - ec = detail::make_error_code(detail::portable_error::invalid_argument); - return; - } - auto fs = symlink_status(p, ec); - if ((opts & perm_options::replace) != perm_options::replace) { - if ((opts & perm_options::add) == perm_options::add) { - prms = fs.permissions() | prms; - } - else { - prms = fs.permissions() & ~prms; - } - } -#ifdef GHC_OS_WINDOWS -#ifdef __GNUC__ - auto oldAttr = GetFileAttributesW(GHC_NATIVEWP(p)); - if (oldAttr != INVALID_FILE_ATTRIBUTES) { - DWORD newAttr = ((prms & perms::owner_write) == perms::owner_write) ? oldAttr & ~(static_cast<DWORD>(FILE_ATTRIBUTE_READONLY)) : oldAttr | FILE_ATTRIBUTE_READONLY; - if (oldAttr == newAttr || SetFileAttributesW(GHC_NATIVEWP(p), newAttr)) { - return; - } - } - ec = detail::make_system_error(); -#else - int mode = 0; - if ((prms & perms::owner_read) == perms::owner_read) { - mode |= _S_IREAD; - } - if ((prms & perms::owner_write) == perms::owner_write) { - mode |= _S_IWRITE; - } - if (::_wchmod(p.wstring().c_str(), mode) != 0) { - ec = detail::make_system_error(); - } -#endif -#else - if ((opts & perm_options::nofollow) != perm_options::nofollow) { - if (::chmod(p.c_str(), static_cast<mode_t>(prms)) != 0) { - ec = detail::make_system_error(); - } - } -#endif -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE path proximate(const path& p, std::error_code& ec) -{ - auto cp = current_path(ec); - if (!ec) { - return proximate(p, cp, ec); - } - return path(); -} -#endif - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE path proximate(const path& p, const path& base) -{ - return weakly_canonical(p).lexically_proximate(weakly_canonical(base)); -} -#endif - -GHC_INLINE path proximate(const path& p, const path& base, std::error_code& ec) -{ - return weakly_canonical(p, ec).lexically_proximate(weakly_canonical(base, ec)); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE path read_symlink(const path& p) -{ - std::error_code ec; - auto result = read_symlink(p, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } - return result; -} -#endif - -GHC_INLINE path read_symlink(const path& p, std::error_code& ec) -{ - file_status fs = symlink_status(p, ec); - if (fs.type() != file_type::symlink) { - ec = detail::make_error_code(detail::portable_error::invalid_argument); - return path(); - } - auto result = detail::resolveSymlink(p, ec); - return ec ? path() : result; -} - -GHC_INLINE path relative(const path& p, std::error_code& ec) -{ - return relative(p, current_path(ec), ec); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE path relative(const path& p, const path& base) -{ - return weakly_canonical(p).lexically_relative(weakly_canonical(base)); -} -#endif - -GHC_INLINE path relative(const path& p, const path& base, std::error_code& ec) -{ - return weakly_canonical(p, ec).lexically_relative(weakly_canonical(base, ec)); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool remove(const path& p) -{ - std::error_code ec; - auto result = remove(p, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } - return result; -} -#endif - -GHC_INLINE bool remove(const path& p, std::error_code& ec) noexcept -{ - ec.clear(); -#ifdef GHC_OS_WINDOWS -#ifdef GHC_USE_WCHAR_T - auto cstr = p.c_str(); -#else - std::wstring np = detail::fromUtf8<std::wstring>(p.u8string()); - auto cstr = np.c_str(); -#endif - DWORD attr = GetFileAttributesW(cstr); - if (attr == INVALID_FILE_ATTRIBUTES) { - auto error = ::GetLastError(); - if (error == ERROR_FILE_NOT_FOUND || error == ERROR_PATH_NOT_FOUND) { - return false; - } - ec = detail::make_system_error(error); - } - if (!ec) { - if (attr & FILE_ATTRIBUTE_DIRECTORY) { - if (!RemoveDirectoryW(cstr)) { - ec = detail::make_system_error(); - } - } - else { - if (!DeleteFileW(cstr)) { - ec = detail::make_system_error(); - } - } - } -#else - if (::remove(p.c_str()) == -1) { - auto error = errno; - if (error == ENOENT) { - return false; - } - ec = detail::make_system_error(); - } -#endif - return ec ? false : true; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE uintmax_t remove_all(const path& p) -{ - std::error_code ec; - auto result = remove_all(p, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } - return result; -} -#endif - -GHC_INLINE uintmax_t remove_all(const path& p, std::error_code& ec) noexcept -{ - ec.clear(); - uintmax_t count = 0; - if (p == "/") { - ec = detail::make_error_code(detail::portable_error::not_supported); - return static_cast<uintmax_t>(-1); - } - std::error_code tec; - auto fs = status(p, tec); - if (exists(fs) && is_directory(fs)) { - for (auto iter = directory_iterator(p, ec); iter != directory_iterator(); iter.increment(ec)) { - if (ec) { - break; - } - bool is_symlink_result = iter->is_symlink(ec); - if (ec) - return static_cast<uintmax_t>(-1); - bool is_directory_result = iter->is_directory(ec); - if (ec) - return static_cast<uintmax_t>(-1); - if (!is_symlink_result && is_directory_result) { - count += remove_all(iter->path(), ec); - if (ec) { - return static_cast<uintmax_t>(-1); - } - } - else { - remove(iter->path(), ec); - if (ec) { - return static_cast<uintmax_t>(-1); - } - ++count; - } - } - } - if (!ec) { - if (remove(p, ec)) { - ++count; - } - } - if (ec) { - return static_cast<uintmax_t>(-1); - } - return count; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE void rename(const path& from, const path& to) -{ - std::error_code ec; - rename(from, to, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), from, to, ec); - } -} -#endif - -GHC_INLINE void rename(const path& from, const path& to, std::error_code& ec) noexcept -{ - ec.clear(); -#ifdef GHC_OS_WINDOWS - if (from != to) { - if (!MoveFileExW(GHC_NATIVEWP(from), GHC_NATIVEWP(to), (DWORD)MOVEFILE_REPLACE_EXISTING)) { - ec = detail::make_system_error(); - } - } -#else - if (from != to) { - if (::rename(from.c_str(), to.c_str()) != 0) { - ec = detail::make_system_error(); - } - } -#endif -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE void resize_file(const path& p, uintmax_t size) -{ - std::error_code ec; - resize_file(p, size, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } -} -#endif - -GHC_INLINE void resize_file(const path& p, uintmax_t size, std::error_code& ec) noexcept -{ - ec.clear(); -#ifdef GHC_OS_WINDOWS - LARGE_INTEGER lisize; - lisize.QuadPart = static_cast<LONGLONG>(size); - if (lisize.QuadPart < 0) { -#ifdef ERROR_FILE_TOO_LARGE - ec = detail::make_system_error(ERROR_FILE_TOO_LARGE); -#else - ec = detail::make_system_error(223); -#endif - return; - } - std::shared_ptr<void> file(CreateFileW(GHC_NATIVEWP(p), GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL), CloseHandle); - if (file.get() == INVALID_HANDLE_VALUE) { - ec = detail::make_system_error(); - } - else if (SetFilePointerEx(file.get(), lisize, NULL, FILE_BEGIN) == 0 || SetEndOfFile(file.get()) == 0) { - ec = detail::make_system_error(); - } -#else - if (::truncate(p.c_str(), static_cast<off_t>(size)) != 0) { - ec = detail::make_system_error(); - } -#endif -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE space_info space(const path& p) -{ - std::error_code ec; - auto result = space(p, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } - return result; -} -#endif - -GHC_INLINE space_info space(const path& p, std::error_code& ec) noexcept -{ - ec.clear(); -#ifdef GHC_OS_WINDOWS - ULARGE_INTEGER freeBytesAvailableToCaller = {{ 0, 0 }}; - ULARGE_INTEGER totalNumberOfBytes = {{ 0, 0 }}; - ULARGE_INTEGER totalNumberOfFreeBytes = {{ 0, 0 }}; - if (!GetDiskFreeSpaceExW(GHC_NATIVEWP(p), &freeBytesAvailableToCaller, &totalNumberOfBytes, &totalNumberOfFreeBytes)) { - ec = detail::make_system_error(); - return {static_cast<uintmax_t>(-1), static_cast<uintmax_t>(-1), static_cast<uintmax_t>(-1)}; - } - return {static_cast<uintmax_t>(totalNumberOfBytes.QuadPart), static_cast<uintmax_t>(totalNumberOfFreeBytes.QuadPart), static_cast<uintmax_t>(freeBytesAvailableToCaller.QuadPart)}; -#else - struct ::statvfs sfs; - if (::statvfs(p.c_str(), &sfs) != 0) { - ec = detail::make_system_error(); - return {static_cast<uintmax_t>(-1), static_cast<uintmax_t>(-1), static_cast<uintmax_t>(-1)}; - } - return {static_cast<uintmax_t>(sfs.f_blocks * sfs.f_frsize), static_cast<uintmax_t>(sfs.f_bfree * sfs.f_frsize), static_cast<uintmax_t>(sfs.f_bavail * sfs.f_frsize)}; -#endif -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE file_status status(const path& p) -{ - std::error_code ec; - auto result = status(p, ec); - if (result.type() == file_type::none) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } - return result; -} -#endif - -GHC_INLINE file_status status(const path& p, std::error_code& ec) noexcept -{ - return detail::status_ex(p, ec); -} - -GHC_INLINE bool status_known(file_status s) noexcept -{ - return s.type() != file_type::none; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE file_status symlink_status(const path& p) -{ - std::error_code ec; - auto result = symlink_status(p, ec); - if (result.type() == file_type::none) { - throw filesystem_error(detail::systemErrorText(ec.value()), ec); - } - return result; -} -#endif - -GHC_INLINE file_status symlink_status(const path& p, std::error_code& ec) noexcept -{ - return detail::symlink_status_ex(p, ec); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE path temp_directory_path() -{ - std::error_code ec; - path result = temp_directory_path(ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), ec); - } - return result; -} -#endif - -GHC_INLINE path temp_directory_path(std::error_code& ec) noexcept -{ - ec.clear(); -#ifdef GHC_OS_WINDOWS - wchar_t buffer[512]; - auto rc = GetTempPathW(511, buffer); - if (!rc || rc > 511) { - ec = detail::make_system_error(); - return path(); - } - return path(std::wstring(buffer)); -#else - static const char* temp_vars[] = {"TMPDIR", "TMP", "TEMP", "TEMPDIR", nullptr}; - const char* temp_path = nullptr; - for (auto temp_name = temp_vars; *temp_name != nullptr; ++temp_name) { - temp_path = std::getenv(*temp_name); - if (temp_path) { - return path(temp_path); - } - } - return path("/tmp"); -#endif -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE path weakly_canonical(const path& p) -{ - std::error_code ec; - auto result = weakly_canonical(p, ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); - } - return result; -} -#endif - -GHC_INLINE path weakly_canonical(const path& p, std::error_code& ec) noexcept -{ - path result; - ec.clear(); - bool scan = true; - for (auto pe : p) { - if (scan) { - std::error_code tec; - if (exists(result / pe, tec)) { - result /= pe; - } - else { - if (ec) { - return path(); - } - scan = false; - if (!result.empty()) { - result = canonical(result, ec) / pe; - if (ec) { - break; - } - } - else { - result /= pe; - } - } - } - else { - result /= pe; - } - } - if (scan) { - if (!result.empty()) { - result = canonical(result, ec); - } - } - return ec ? path() : result.lexically_normal(); -} - -//----------------------------------------------------------------------------- -// 30.10.11 class file_status -// 30.10.11.1 constructors and destructor -GHC_INLINE file_status::file_status() noexcept - : file_status(file_type::none) -{ -} - -GHC_INLINE file_status::file_status(file_type ft, perms prms) noexcept - : _type(ft) - , _perms(prms) -{ -} - -GHC_INLINE file_status::file_status(const file_status& other) noexcept - : _type(other._type) - , _perms(other._perms) -{ -} - -GHC_INLINE file_status::file_status(file_status&& other) noexcept - : _type(other._type) - , _perms(other._perms) -{ -} - -GHC_INLINE file_status::~file_status() {} - -// assignments: -GHC_INLINE file_status& file_status::operator=(const file_status& rhs) noexcept -{ - _type = rhs._type; - _perms = rhs._perms; - return *this; -} - -GHC_INLINE file_status& file_status::operator=(file_status&& rhs) noexcept -{ - _type = rhs._type; - _perms = rhs._perms; - return *this; -} - -// 30.10.11.3 modifiers -GHC_INLINE void file_status::type(file_type ft) noexcept -{ - _type = ft; -} - -GHC_INLINE void file_status::permissions(perms prms) noexcept -{ - _perms = prms; -} - -// 30.10.11.2 observers -GHC_INLINE file_type file_status::type() const noexcept -{ - return _type; -} - -GHC_INLINE perms file_status::permissions() const noexcept -{ - return _perms; -} - -//----------------------------------------------------------------------------- -// 30.10.12 class directory_entry -// 30.10.12.1 constructors and destructor -// directory_entry::directory_entry() noexcept = default; -// directory_entry::directory_entry(const directory_entry&) = default; -// directory_entry::directory_entry(directory_entry&&) noexcept = default; -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE directory_entry::directory_entry(const filesystem::path& p) - : _path(p) - , _file_size(0) -#ifndef GHC_OS_WINDOWS - , _hard_link_count(0) -#endif - , _last_write_time(0) -{ - refresh(); -} -#endif - -GHC_INLINE directory_entry::directory_entry(const filesystem::path& p, std::error_code& ec) - : _path(p) - , _file_size(0) -#ifndef GHC_OS_WINDOWS - , _hard_link_count(0) -#endif - , _last_write_time(0) -{ - refresh(ec); -} - -GHC_INLINE directory_entry::~directory_entry() {} - -// assignments: -// directory_entry& directory_entry::operator=(const directory_entry&) = default; -// directory_entry& directory_entry::operator=(directory_entry&&) noexcept = default; - -// 30.10.12.2 directory_entry modifiers -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE void directory_entry::assign(const filesystem::path& p) -{ - _path = p; - refresh(); -} -#endif - -GHC_INLINE void directory_entry::assign(const filesystem::path& p, std::error_code& ec) -{ - _path = p; - refresh(ec); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE void directory_entry::replace_filename(const filesystem::path& p) -{ - _path.replace_filename(p); - refresh(); -} -#endif - -GHC_INLINE void directory_entry::replace_filename(const filesystem::path& p, std::error_code& ec) -{ - _path.replace_filename(p); - refresh(ec); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE void directory_entry::refresh() -{ - std::error_code ec; - refresh(ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), _path, ec); - } -} -#endif - -GHC_INLINE void directory_entry::refresh(std::error_code& ec) noexcept -{ -#ifdef GHC_OS_WINDOWS - _status = detail::status_ex(_path, ec, &_symlink_status, &_file_size, nullptr, &_last_write_time); -#else - _status = detail::status_ex(_path, ec, &_symlink_status, &_file_size, &_hard_link_count, &_last_write_time); -#endif -} - -// 30.10.12.3 directory_entry observers -GHC_INLINE const filesystem::path& directory_entry::path() const noexcept -{ - return _path; -} - -GHC_INLINE directory_entry::operator const filesystem::path&() const noexcept -{ - return _path; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool directory_entry::exists() const -{ - return filesystem::exists(status()); -} -#endif - -GHC_INLINE bool directory_entry::exists(std::error_code& ec) const noexcept -{ - return filesystem::exists(status(ec)); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool directory_entry::is_block_file() const -{ - return filesystem::is_block_file(status()); -} -#endif -GHC_INLINE bool directory_entry::is_block_file(std::error_code& ec) const noexcept -{ - return filesystem::is_block_file(status(ec)); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool directory_entry::is_character_file() const -{ - return filesystem::is_character_file(status()); -} -#endif - -GHC_INLINE bool directory_entry::is_character_file(std::error_code& ec) const noexcept -{ - return filesystem::is_character_file(status(ec)); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool directory_entry::is_directory() const -{ - return filesystem::is_directory(status()); -} -#endif - -GHC_INLINE bool directory_entry::is_directory(std::error_code& ec) const noexcept -{ - return filesystem::is_directory(status(ec)); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool directory_entry::is_fifo() const -{ - return filesystem::is_fifo(status()); -} -#endif - -GHC_INLINE bool directory_entry::is_fifo(std::error_code& ec) const noexcept -{ - return filesystem::is_fifo(status(ec)); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool directory_entry::is_other() const -{ - return filesystem::is_other(status()); -} -#endif - -GHC_INLINE bool directory_entry::is_other(std::error_code& ec) const noexcept -{ - return filesystem::is_other(status(ec)); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool directory_entry::is_regular_file() const -{ - return filesystem::is_regular_file(status()); -} -#endif - -GHC_INLINE bool directory_entry::is_regular_file(std::error_code& ec) const noexcept -{ - return filesystem::is_regular_file(status(ec)); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool directory_entry::is_socket() const -{ - return filesystem::is_socket(status()); -} -#endif - -GHC_INLINE bool directory_entry::is_socket(std::error_code& ec) const noexcept -{ - return filesystem::is_socket(status(ec)); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE bool directory_entry::is_symlink() const -{ - return filesystem::is_symlink(symlink_status()); -} -#endif - -GHC_INLINE bool directory_entry::is_symlink(std::error_code& ec) const noexcept -{ - return filesystem::is_symlink(symlink_status(ec)); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE uintmax_t directory_entry::file_size() const -{ - if (_status.type() != file_type::none) { - return _file_size; - } - return filesystem::file_size(path()); -} -#endif - -GHC_INLINE uintmax_t directory_entry::file_size(std::error_code& ec) const noexcept -{ - if (_status.type() != file_type::none) { - ec.clear(); - return _file_size; - } - return filesystem::file_size(path(), ec); -} - -#ifndef GHC_OS_WEB -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE uintmax_t directory_entry::hard_link_count() const -{ -#ifndef GHC_OS_WINDOWS - if (_status.type() != file_type::none) { - return _hard_link_count; - } -#endif - return filesystem::hard_link_count(path()); -} -#endif - -GHC_INLINE uintmax_t directory_entry::hard_link_count(std::error_code& ec) const noexcept -{ -#ifndef GHC_OS_WINDOWS - if (_status.type() != file_type::none) { - ec.clear(); - return _hard_link_count; - } -#endif - return filesystem::hard_link_count(path(), ec); -} -#endif - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE file_time_type directory_entry::last_write_time() const -{ - if (_status.type() != file_type::none) { - return std::chrono::system_clock::from_time_t(_last_write_time); - } - return filesystem::last_write_time(path()); -} -#endif - -GHC_INLINE file_time_type directory_entry::last_write_time(std::error_code& ec) const noexcept -{ - if (_status.type() != file_type::none) { - ec.clear(); - return std::chrono::system_clock::from_time_t(_last_write_time); - } - return filesystem::last_write_time(path(), ec); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE file_status directory_entry::status() const -{ - if (_status.type() != file_type::none) { - return _status; - } - return filesystem::status(path()); -} -#endif - -GHC_INLINE file_status directory_entry::status(std::error_code& ec) const noexcept -{ - if (_status.type() != file_type::none) { - ec.clear(); - return _status; - } - return filesystem::status(path(), ec); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE file_status directory_entry::symlink_status() const -{ - if (_symlink_status.type() != file_type::none) { - return _symlink_status; - } - return filesystem::symlink_status(path()); -} -#endif - -GHC_INLINE file_status directory_entry::symlink_status(std::error_code& ec) const noexcept -{ - if (_symlink_status.type() != file_type::none) { - ec.clear(); - return _symlink_status; - } - return filesystem::symlink_status(path(), ec); -} - -#ifdef GHC_HAS_THREEWAY_COMP -GHC_INLINE std::strong_ordering directory_entry::operator<=>(const directory_entry& rhs) const noexcept -{ - return _path <=> rhs._path; -} -#endif - -GHC_INLINE bool directory_entry::operator<(const directory_entry& rhs) const noexcept -{ - return _path < rhs._path; -} - -GHC_INLINE bool directory_entry::operator==(const directory_entry& rhs) const noexcept -{ - return _path == rhs._path; -} - -GHC_INLINE bool directory_entry::operator!=(const directory_entry& rhs) const noexcept -{ - return _path != rhs._path; -} - -GHC_INLINE bool directory_entry::operator<=(const directory_entry& rhs) const noexcept -{ - return _path <= rhs._path; -} - -GHC_INLINE bool directory_entry::operator>(const directory_entry& rhs) const noexcept -{ - return _path > rhs._path; -} - -GHC_INLINE bool directory_entry::operator>=(const directory_entry& rhs) const noexcept -{ - return _path >= rhs._path; -} - -//----------------------------------------------------------------------------- -// 30.10.13 class directory_iterator - -#ifdef GHC_OS_WINDOWS -class directory_iterator::impl -{ -public: - impl(const path& p, directory_options options) - : _base(p) - , _options(options) - , _dirHandle(INVALID_HANDLE_VALUE) - { - if (!_base.empty()) { - ZeroMemory(&_findData, sizeof(WIN32_FIND_DATAW)); - if ((_dirHandle = FindFirstFileW(GHC_NATIVEWP((_base / "*")), &_findData)) != INVALID_HANDLE_VALUE) { - if (std::wstring(_findData.cFileName) == L"." || std::wstring(_findData.cFileName) == L"..") { - increment(_ec); - } - else { - _current = _base / std::wstring(_findData.cFileName); - copyToDirEntry(_ec); - } - } - else { - auto error = ::GetLastError(); - _base = filesystem::path(); - if (error != ERROR_ACCESS_DENIED || (options & directory_options::skip_permission_denied) == directory_options::none) { - _ec = detail::make_system_error(); - } - } - } - } - impl(const impl& other) = delete; - ~impl() - { - if (_dirHandle != INVALID_HANDLE_VALUE) { - FindClose(_dirHandle); - _dirHandle = INVALID_HANDLE_VALUE; - } - } - void increment(std::error_code& ec) - { - if (_dirHandle != INVALID_HANDLE_VALUE) { - do { - if (FindNextFileW(_dirHandle, &_findData)) { - _current = _base; -#ifdef GHC_USE_WCHAR_T - _current.append_name(_findData.cFileName); -#else -#ifdef GHC_RAISE_UNICODE_ERRORS - try { - _current.append_name(detail::toUtf8(_findData.cFileName).c_str()); - } - catch (filesystem_error& fe) { - ec = fe.code(); - return; - } -#else - _current.append_name(detail::toUtf8(_findData.cFileName).c_str()); -#endif -#endif - copyToDirEntry(ec); - } - else { - auto err = ::GetLastError(); - if (err != ERROR_NO_MORE_FILES) { - _ec = ec = detail::make_system_error(err); - } - FindClose(_dirHandle); - _dirHandle = INVALID_HANDLE_VALUE; - _current = filesystem::path(); - break; - } - } while (std::wstring(_findData.cFileName) == L"." || std::wstring(_findData.cFileName) == L".."); - } - else { - ec = _ec; - } - } - void copyToDirEntry(std::error_code& ec) - { - _dir_entry._path = _current; - if (_findData.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) { - _dir_entry._status = detail::status_ex(_current, ec, &_dir_entry._symlink_status, &_dir_entry._file_size, nullptr, &_dir_entry._last_write_time); - } - else { - _dir_entry._status = detail::status_from_INFO(_current, &_findData, ec, &_dir_entry._file_size, &_dir_entry._last_write_time); - _dir_entry._symlink_status = _dir_entry._status; - } - if (ec) { - if (_dir_entry._status.type() != file_type::none && _dir_entry._symlink_status.type() != file_type::none) { - ec.clear(); - } - else { - _dir_entry._file_size = static_cast<uintmax_t>(-1); - _dir_entry._last_write_time = 0; - } - } - } - path _base; - directory_options _options; - WIN32_FIND_DATAW _findData; - HANDLE _dirHandle; - path _current; - directory_entry _dir_entry; - std::error_code _ec; -}; -#else -// POSIX implementation -class directory_iterator::impl -{ -public: - impl(const path& path, directory_options options) - : _base(path) - , _options(options) - , _dir(nullptr) - , _entry(nullptr) - { - if (!path.empty()) { - _dir = ::opendir(path.native().c_str()); - if (!_dir) { - auto error = errno; - _base = filesystem::path(); - if ((error != EACCES && error != EPERM) || (options & directory_options::skip_permission_denied) == directory_options::none) { - _ec = detail::make_system_error(); - } - } - else { - increment(_ec); - } - } - } - impl(const impl& other) = delete; - ~impl() - { - if (_dir) { - ::closedir(_dir); - } - } - void increment(std::error_code& ec) - { - if (_dir) { - bool skip; - do { - skip = false; - errno = 0; - _entry = ::readdir(_dir); - if (_entry) { - _current = _base; - _current.append_name(_entry->d_name); - _dir_entry.assign(_current, ec); - if (ec && (ec.value() == EACCES || ec.value() == EPERM) && (_options & directory_options::skip_permission_denied) == directory_options::skip_permission_denied) { - ec.clear(); - skip = true; - } - } - else { - ::closedir(_dir); - _dir = nullptr; - _current = path(); - if (errno) { - ec = detail::make_system_error(); - } - break; - } - } while (skip || std::strcmp(_entry->d_name, ".") == 0 || std::strcmp(_entry->d_name, "..") == 0); - } - } - path _base; - directory_options _options; - path _current; - DIR* _dir; - struct ::dirent* _entry; - directory_entry _dir_entry; - std::error_code _ec; -}; -#endif - -// 30.10.13.1 member functions -GHC_INLINE directory_iterator::directory_iterator() noexcept - : _impl(new impl(path(), directory_options::none)) -{ -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE directory_iterator::directory_iterator(const path& p) - : _impl(new impl(p, directory_options::none)) -{ - if (_impl->_ec) { - throw filesystem_error(detail::systemErrorText(_impl->_ec.value()), p, _impl->_ec); - } - _impl->_ec.clear(); -} - -GHC_INLINE directory_iterator::directory_iterator(const path& p, directory_options options) - : _impl(new impl(p, options)) -{ - if (_impl->_ec) { - throw filesystem_error(detail::systemErrorText(_impl->_ec.value()), p, _impl->_ec); - } -} -#endif - -GHC_INLINE directory_iterator::directory_iterator(const path& p, std::error_code& ec) noexcept - : _impl(new impl(p, directory_options::none)) -{ - if (_impl->_ec) { - ec = _impl->_ec; - } -} - -GHC_INLINE directory_iterator::directory_iterator(const path& p, directory_options options, std::error_code& ec) noexcept - : _impl(new impl(p, options)) -{ - if (_impl->_ec) { - ec = _impl->_ec; - } -} - -GHC_INLINE directory_iterator::directory_iterator(const directory_iterator& rhs) - : _impl(rhs._impl) -{ -} - -GHC_INLINE directory_iterator::directory_iterator(directory_iterator&& rhs) noexcept - : _impl(std::move(rhs._impl)) -{ -} - -GHC_INLINE directory_iterator::~directory_iterator() {} - -GHC_INLINE directory_iterator& directory_iterator::operator=(const directory_iterator& rhs) -{ - _impl = rhs._impl; - return *this; -} - -GHC_INLINE directory_iterator& directory_iterator::operator=(directory_iterator&& rhs) noexcept -{ - _impl = std::move(rhs._impl); - return *this; -} - -GHC_INLINE const directory_entry& directory_iterator::operator*() const -{ - return _impl->_dir_entry; -} - -GHC_INLINE const directory_entry* directory_iterator::operator->() const -{ - return &_impl->_dir_entry; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE directory_iterator& directory_iterator::operator++() -{ - std::error_code ec; - _impl->increment(ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), _impl->_current, ec); - } - return *this; -} -#endif - -GHC_INLINE directory_iterator& directory_iterator::increment(std::error_code& ec) noexcept -{ - _impl->increment(ec); - return *this; -} - -GHC_INLINE bool directory_iterator::operator==(const directory_iterator& rhs) const -{ - return _impl->_current == rhs._impl->_current; -} - -GHC_INLINE bool directory_iterator::operator!=(const directory_iterator& rhs) const -{ - return _impl->_current != rhs._impl->_current; -} - -// 30.10.13.2 directory_iterator non-member functions - -GHC_INLINE directory_iterator begin(directory_iterator iter) noexcept -{ - return iter; -} - -GHC_INLINE directory_iterator end(const directory_iterator&) noexcept -{ - return directory_iterator(); -} - -//----------------------------------------------------------------------------- -// 30.10.14 class recursive_directory_iterator - -GHC_INLINE recursive_directory_iterator::recursive_directory_iterator() noexcept - : _impl(new recursive_directory_iterator_impl(directory_options::none, true)) -{ - _impl->_dir_iter_stack.push(directory_iterator()); -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE recursive_directory_iterator::recursive_directory_iterator(const path& p) - : _impl(new recursive_directory_iterator_impl(directory_options::none, true)) -{ - _impl->_dir_iter_stack.push(directory_iterator(p)); -} - -GHC_INLINE recursive_directory_iterator::recursive_directory_iterator(const path& p, directory_options options) - : _impl(new recursive_directory_iterator_impl(options, true)) -{ - _impl->_dir_iter_stack.push(directory_iterator(p, options)); -} -#endif - -GHC_INLINE recursive_directory_iterator::recursive_directory_iterator(const path& p, directory_options options, std::error_code& ec) noexcept - : _impl(new recursive_directory_iterator_impl(options, true)) -{ - _impl->_dir_iter_stack.push(directory_iterator(p, options, ec)); -} - -GHC_INLINE recursive_directory_iterator::recursive_directory_iterator(const path& p, std::error_code& ec) noexcept - : _impl(new recursive_directory_iterator_impl(directory_options::none, true)) -{ - _impl->_dir_iter_stack.push(directory_iterator(p, ec)); -} - -GHC_INLINE recursive_directory_iterator::recursive_directory_iterator(const recursive_directory_iterator& rhs) - : _impl(rhs._impl) -{ -} - -GHC_INLINE recursive_directory_iterator::recursive_directory_iterator(recursive_directory_iterator&& rhs) noexcept - : _impl(std::move(rhs._impl)) -{ -} - -GHC_INLINE recursive_directory_iterator::~recursive_directory_iterator() {} - -// 30.10.14.1 observers -GHC_INLINE directory_options recursive_directory_iterator::options() const -{ - return _impl->_options; -} - -GHC_INLINE int recursive_directory_iterator::depth() const -{ - return static_cast<int>(_impl->_dir_iter_stack.size() - 1); -} - -GHC_INLINE bool recursive_directory_iterator::recursion_pending() const -{ - return _impl->_recursion_pending; -} - -GHC_INLINE const directory_entry& recursive_directory_iterator::operator*() const -{ - return *(_impl->_dir_iter_stack.top()); -} - -GHC_INLINE const directory_entry* recursive_directory_iterator::operator->() const -{ - return &(*(_impl->_dir_iter_stack.top())); -} - -// 30.10.14.1 modifiers recursive_directory_iterator& -GHC_INLINE recursive_directory_iterator& recursive_directory_iterator::operator=(const recursive_directory_iterator& rhs) -{ - _impl = rhs._impl; - return *this; -} - -GHC_INLINE recursive_directory_iterator& recursive_directory_iterator::operator=(recursive_directory_iterator&& rhs) noexcept -{ - _impl = std::move(rhs._impl); - return *this; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE recursive_directory_iterator& recursive_directory_iterator::operator++() -{ - std::error_code ec; - increment(ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), _impl->_dir_iter_stack.empty() ? path() : _impl->_dir_iter_stack.top()->path(), ec); - } - return *this; -} -#endif - -GHC_INLINE recursive_directory_iterator& recursive_directory_iterator::increment(std::error_code& ec) noexcept -{ - bool isDir = (*this)->is_directory(ec); - bool isSymLink = !ec && (*this)->is_symlink(ec); - if(!ec) { - if (recursion_pending() && isDir && (!isSymLink || (options() & directory_options::follow_directory_symlink) != directory_options::none)) { - _impl->_dir_iter_stack.push(directory_iterator((*this)->path(), _impl->_options, ec)); - } - else { - _impl->_dir_iter_stack.top().increment(ec); - } - if (!ec) { - while (depth() && _impl->_dir_iter_stack.top() == directory_iterator()) { - _impl->_dir_iter_stack.pop(); - _impl->_dir_iter_stack.top().increment(ec); - } - } - else if (!_impl->_dir_iter_stack.empty()) { - _impl->_dir_iter_stack.pop(); - } - _impl->_recursion_pending = true; - } - return *this; -} - -#ifdef GHC_WITH_EXCEPTIONS -GHC_INLINE void recursive_directory_iterator::pop() -{ - std::error_code ec; - pop(ec); - if (ec) { - throw filesystem_error(detail::systemErrorText(ec.value()), _impl->_dir_iter_stack.empty() ? path() : _impl->_dir_iter_stack.top()->path(), ec); - } -} -#endif - -GHC_INLINE void recursive_directory_iterator::pop(std::error_code& ec) -{ - if (depth() == 0) { - *this = recursive_directory_iterator(); - } - else { - do { - _impl->_dir_iter_stack.pop(); - _impl->_dir_iter_stack.top().increment(ec); - } while (depth() && _impl->_dir_iter_stack.top() == directory_iterator()); - } -} - -GHC_INLINE void recursive_directory_iterator::disable_recursion_pending() -{ - _impl->_recursion_pending = false; -} - -// other members as required by 27.2.3, input iterators -GHC_INLINE bool recursive_directory_iterator::operator==(const recursive_directory_iterator& rhs) const -{ - return _impl->_dir_iter_stack.top() == rhs._impl->_dir_iter_stack.top(); -} - -GHC_INLINE bool recursive_directory_iterator::operator!=(const recursive_directory_iterator& rhs) const -{ - return _impl->_dir_iter_stack.top() != rhs._impl->_dir_iter_stack.top(); -} - -// 30.10.14.2 directory_iterator non-member functions -GHC_INLINE recursive_directory_iterator begin(recursive_directory_iterator iter) noexcept -{ - return iter; -} - -GHC_INLINE recursive_directory_iterator end(const recursive_directory_iterator&) noexcept -{ - return recursive_directory_iterator(); -} - -#endif // GHC_EXPAND_IMPL - -} // namespace filesystem -} // namespace ghc - -// cleanup some macros -#undef GHC_INLINE -#undef GHC_EXPAND_IMPL - -#endif // GHC_FILESYSTEM_H |