Jan Eilers | 307fd34 | 2020-06-23 14:16:04 +0100 | [diff] [blame] | 1 | //--------------------------------------------------------------------------------------- |
| 2 | // |
| 3 | // ghc::filesystem - A C++17-like filesystem implementation for C++11/C++14/C++17 |
| 4 | // |
| 5 | //--------------------------------------------------------------------------------------- |
| 6 | // |
| 7 | // Copyright (c) 2018, Steffen Schümann <s.schuemann@pobox.com> |
| 8 | // |
Jim Flynn | 6217c3d | 2022-06-14 10:58:23 +0100 | [diff] [blame] | 9 | // SPDX-License-Identifier: MIT |
| 10 | // |
Jan Eilers | 307fd34 | 2020-06-23 14:16:04 +0100 | [diff] [blame] | 11 | // Permission is hereby granted, free of charge, to any person obtaining a copy |
| 12 | // of this software and associated documentation files (the "Software"), to deal |
| 13 | // in the Software without restriction, including without limitation the rights |
| 14 | // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 15 | // copies of the Software, and to permit persons to whom the Software is |
| 16 | // furnished to do so, subject to the following conditions: |
| 17 | // |
| 18 | // The above copyright notice and this permission notice shall be included in all |
| 19 | // copies or substantial portions of the Software. |
| 20 | // |
| 21 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 22 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 23 | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 24 | // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 25 | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 26 | // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 27 | // SOFTWARE. |
| 28 | // |
| 29 | //--------------------------------------------------------------------------------------- |
| 30 | // |
| 31 | // To dynamically select std::filesystem where available, you could use: |
| 32 | // |
| 33 | // #if defined(__cplusplus) && __cplusplus >= 201703L && defined(__has_include) && __has_include(<filesystem>) |
| 34 | // #include <filesystem> |
| 35 | // namespace fs = std::filesystem; |
| 36 | // #else |
| 37 | // #include <ghc/filesystem.hpp> |
| 38 | // namespace fs = ghc::filesystem; |
| 39 | // #endif |
| 40 | // |
| 41 | //--------------------------------------------------------------------------------------- |
| 42 | #ifndef GHC_FILESYSTEM_H |
| 43 | #define GHC_FILESYSTEM_H |
| 44 | |
| 45 | // #define BSD manifest constant only in |
| 46 | // sys/param.h |
| 47 | #ifndef _WIN32 |
| 48 | #include <sys/param.h> |
| 49 | #endif |
| 50 | |
| 51 | #ifndef GHC_OS_DETECTED |
| 52 | #if defined(__APPLE__) && defined(__MACH__) |
| 53 | #define GHC_OS_MACOS |
| 54 | #elif defined(__linux__) |
| 55 | #define GHC_OS_LINUX |
| 56 | #if defined(__ANDROID__) |
| 57 | #define GHC_OS_ANDROID |
| 58 | #endif |
| 59 | #elif defined(_WIN64) |
| 60 | #define GHC_OS_WINDOWS |
| 61 | #define GHC_OS_WIN64 |
| 62 | #elif defined(_WIN32) |
| 63 | #define GHC_OS_WINDOWS |
| 64 | #define GHC_OS_WIN32 |
| 65 | #elif defined(__svr4__) |
| 66 | #define GHC_OS_SYS5R4 |
| 67 | #elif defined(BSD) |
| 68 | #define GHC_OS_BSD |
| 69 | #else |
| 70 | #error "Operating system currently not supported!" |
| 71 | #endif |
| 72 | #define GHC_OS_DETECTED |
| 73 | #endif |
| 74 | |
| 75 | #if defined(GHC_FILESYSTEM_IMPLEMENTATION) |
| 76 | #define GHC_EXPAND_IMPL |
| 77 | #define GHC_INLINE |
| 78 | #ifdef GHC_OS_WINDOWS |
| 79 | #define GHC_FS_API |
| 80 | #define GHC_FS_API_CLASS |
| 81 | #else |
| 82 | #define GHC_FS_API __attribute__((visibility("default"))) |
| 83 | #define GHC_FS_API_CLASS __attribute__((visibility("default"))) |
| 84 | #endif |
| 85 | #elif defined(GHC_FILESYSTEM_FWD) |
| 86 | #define GHC_INLINE |
| 87 | #ifdef GHC_OS_WINDOWS |
| 88 | #define GHC_FS_API extern |
| 89 | #define GHC_FS_API_CLASS |
| 90 | #else |
| 91 | #define GHC_FS_API extern |
| 92 | #define GHC_FS_API_CLASS |
| 93 | #endif |
| 94 | #else |
| 95 | #define GHC_EXPAND_IMPL |
| 96 | #define GHC_INLINE inline |
| 97 | #define GHC_FS_API |
| 98 | #define GHC_FS_API_CLASS |
| 99 | #endif |
| 100 | |
| 101 | #ifdef GHC_EXPAND_IMPL |
| 102 | |
| 103 | #ifdef GHC_OS_WINDOWS |
| 104 | #include <windows.h> |
| 105 | // additional includes |
| 106 | #include <shellapi.h> |
| 107 | #include <sys/stat.h> |
| 108 | #include <sys/types.h> |
| 109 | #include <wchar.h> |
| 110 | #include <winioctl.h> |
| 111 | #else |
| 112 | #include <dirent.h> |
| 113 | #include <fcntl.h> |
| 114 | #include <langinfo.h> |
| 115 | #include <sys/param.h> |
| 116 | #include <sys/stat.h> |
| 117 | #include <sys/statvfs.h> |
| 118 | #include <sys/time.h> |
| 119 | #include <sys/types.h> |
| 120 | #include <unistd.h> |
| 121 | #include <limits.h> |
| 122 | #ifdef GHC_OS_ANDROID |
| 123 | #include <android/api-level.h> |
| 124 | #endif |
| 125 | #endif |
| 126 | #ifdef GHC_OS_MACOS |
| 127 | #include <Availability.h> |
| 128 | #endif |
| 129 | |
| 130 | #include <algorithm> |
| 131 | #include <cctype> |
| 132 | #include <chrono> |
| 133 | #include <clocale> |
| 134 | #include <cstdlib> |
| 135 | #include <cstring> |
| 136 | #include <fstream> |
| 137 | #include <functional> |
| 138 | #include <memory> |
| 139 | #include <stack> |
| 140 | #include <stdexcept> |
| 141 | #include <string> |
| 142 | #include <system_error> |
| 143 | #include <type_traits> |
| 144 | #include <utility> |
| 145 | #include <vector> |
| 146 | |
| 147 | #else // GHC_EXPAND_IMPL |
| 148 | #include <chrono> |
| 149 | #include <fstream> |
| 150 | #include <memory> |
| 151 | #include <stack> |
| 152 | #include <stdexcept> |
| 153 | #include <string> |
| 154 | #include <system_error> |
| 155 | #ifdef GHC_OS_WINDOWS |
| 156 | #include <vector> |
| 157 | #endif |
| 158 | #endif // GHC_EXPAND_IMPL |
| 159 | |
| 160 | //- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 161 | // Behaviour Switches (see README.md, should match the config in test/filesystem_test.cpp): |
| 162 | //- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 163 | // LWG #2682 disables the since then invalid use of the copy option create_symlinks on directories |
| 164 | // configure LWG conformance () |
| 165 | #define LWG_2682_BEHAVIOUR |
| 166 | //- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 167 | // LWG #2395 makes crate_directory/create_directories not emit an error if there is a regular |
| 168 | // file with that name, it is superceded by P1164R1, so only activate if really needed |
| 169 | // #define LWG_2935_BEHAVIOUR |
| 170 | //- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 171 | // LWG #2937 enforces that fs::equivalent emits an error, if !fs::exists(p1)||!exists(p2) |
| 172 | #define LWG_2937_BEHAVIOUR |
| 173 | //- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 174 | // UTF8-Everywhere is the original behaviour of ghc::filesystem. With this define you can |
| 175 | // enable the more standard conforming implementation option that uses wstring on Windows |
| 176 | // as ghc::filesystem::string_type. |
| 177 | // #define GHC_WIN_WSTRING_STRING_TYPE |
| 178 | //- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 179 | // Raise errors/exceptions when invalid unicode codepoints or UTF-8 sequences are found, |
| 180 | // instead of replacing them with the unicode replacement character (U+FFFD). |
| 181 | // #define GHC_RAISE_UNICODE_ERRORS |
| 182 | //- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 183 | |
| 184 | // ghc::filesystem version in decimal (major * 10000 + minor * 100 + patch) |
| 185 | #define GHC_FILESYSTEM_VERSION 10302L |
| 186 | |
| 187 | namespace ghc { |
| 188 | namespace filesystem { |
| 189 | |
| 190 | // temporary existing exception type for yet unimplemented parts |
| 191 | class GHC_FS_API_CLASS not_implemented_exception : public std::logic_error |
| 192 | { |
| 193 | public: |
| 194 | not_implemented_exception() |
| 195 | : std::logic_error("function not implemented yet.") |
| 196 | { |
| 197 | } |
| 198 | }; |
| 199 | |
| 200 | template<typename char_type> |
| 201 | class path_helper_base |
| 202 | { |
| 203 | public: |
| 204 | using value_type = char_type; |
| 205 | #ifdef GHC_OS_WINDOWS |
| 206 | static constexpr value_type preferred_separator = '\\'; |
| 207 | #else |
| 208 | static constexpr value_type preferred_separator = '/'; |
| 209 | #endif |
| 210 | }; |
| 211 | |
| 212 | #if __cplusplus < 201703L |
| 213 | template <typename char_type> |
| 214 | constexpr char_type path_helper_base<char_type>::preferred_separator; |
| 215 | #endif |
Jim Flynn | 6217c3d | 2022-06-14 10:58:23 +0100 | [diff] [blame] | 216 | |
Jan Eilers | 307fd34 | 2020-06-23 14:16:04 +0100 | [diff] [blame] | 217 | // 30.10.8 class path |
| 218 | class GHC_FS_API_CLASS path |
| 219 | #if defined(GHC_OS_WINDOWS) && defined(GHC_WIN_WSTRING_STRING_TYPE) |
| 220 | #define GHC_USE_WCHAR_T |
| 221 | : private path_helper_base<std::wstring::value_type> |
| 222 | { |
| 223 | public: |
| 224 | using path_helper_base<std::wstring::value_type>::value_type; |
| 225 | #else |
| 226 | : private path_helper_base<std::string::value_type> |
| 227 | { |
| 228 | public: |
| 229 | using path_helper_base<std::string::value_type>::value_type; |
| 230 | #endif |
| 231 | using string_type = std::basic_string<value_type>; |
| 232 | using path_helper_base<value_type>::preferred_separator; |
Jim Flynn | 6217c3d | 2022-06-14 10:58:23 +0100 | [diff] [blame] | 233 | |
Jan Eilers | 307fd34 | 2020-06-23 14:16:04 +0100 | [diff] [blame] | 234 | // 30.10.10.1 enumeration format |
| 235 | /// The path format in wich the constructor argument is given. |
| 236 | enum format { |
| 237 | generic_format, ///< The generic format, internally used by |
| 238 | ///< ghc::filesystem::path with slashes |
| 239 | native_format, ///< The format native to the current platform this code |
| 240 | ///< is build for |
| 241 | auto_format, ///< Try to auto-detect the format, fallback to native |
| 242 | }; |
| 243 | |
| 244 | template <class T> |
| 245 | struct _is_basic_string : std::false_type |
| 246 | { |
| 247 | }; |
| 248 | template <class CharT, class Traits, class Alloc> |
| 249 | struct _is_basic_string<std::basic_string<CharT, Traits, Alloc>> : std::true_type |
| 250 | { |
| 251 | }; |
| 252 | #ifdef __cpp_lib_string_view |
| 253 | template <class CharT> |
| 254 | struct _is_basic_string<std::basic_string_view<CharT>> : std::true_type |
| 255 | { |
| 256 | }; |
| 257 | #endif |
| 258 | |
| 259 | template <typename T1, typename T2 = void> |
| 260 | using path_type = typename std::enable_if<!std::is_same<path, T1>::value, path>::type; |
| 261 | #ifdef GHC_USE_WCHAR_T |
| 262 | template <typename T> |
| 263 | 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 || |
| 264 | std::is_same<wchar_t const*, typename std::decay<T>::type>::value || std::is_same<wchar_t*, typename std::decay<T>::type>::value, |
| 265 | path>::type; |
| 266 | template <typename T> |
| 267 | 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, path>::type; |
| 268 | #else |
| 269 | template <typename T> |
| 270 | 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, path>::type; |
| 271 | template <typename T> |
| 272 | 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; |
| 273 | #endif |
| 274 | // 30.10.8.4.1 constructors and destructor |
| 275 | path() noexcept; |
| 276 | path(const path& p); |
| 277 | path(path&& p) noexcept; |
| 278 | path(string_type&& source, format fmt = auto_format); |
| 279 | template <class Source, typename = path_from_string<Source>> |
| 280 | path(const Source& source, format fmt = auto_format); |
| 281 | template <class InputIterator> |
| 282 | path(InputIterator first, InputIterator last, format fmt = auto_format); |
| 283 | template <class Source, typename = path_from_string<Source>> |
| 284 | path(const Source& source, const std::locale& loc, format fmt = auto_format); |
| 285 | template <class InputIterator> |
| 286 | path(InputIterator first, InputIterator last, const std::locale& loc, format fmt = auto_format); |
| 287 | ~path(); |
| 288 | |
| 289 | // 30.10.8.4.2 assignments |
| 290 | path& operator=(const path& p); |
| 291 | path& operator=(path&& p) noexcept; |
| 292 | path& operator=(string_type&& source); |
| 293 | path& assign(string_type&& source); |
| 294 | template <class Source> |
| 295 | path& operator=(const Source& source); |
| 296 | template <class Source> |
| 297 | path& assign(const Source& source); |
| 298 | template <class InputIterator> |
| 299 | path& assign(InputIterator first, InputIterator last); |
| 300 | |
| 301 | // 30.10.8.4.3 appends |
| 302 | path& operator/=(const path& p); |
| 303 | template <class Source> |
| 304 | path& operator/=(const Source& source); |
| 305 | template <class Source> |
| 306 | path& append(const Source& source); |
| 307 | template <class InputIterator> |
| 308 | path& append(InputIterator first, InputIterator last); |
| 309 | |
| 310 | // 30.10.8.4.4 concatenation |
| 311 | path& operator+=(const path& x); |
| 312 | path& operator+=(const string_type& x); |
| 313 | #ifdef __cpp_lib_string_view |
| 314 | path& operator+=(std::basic_string_view<value_type> x); |
| 315 | #endif |
| 316 | path& operator+=(const value_type* x); |
| 317 | path& operator+=(value_type x); |
| 318 | template <class Source> |
| 319 | path_from_string<Source>& operator+=(const Source& x); |
| 320 | template <class EcharT> |
| 321 | path_type_EcharT<EcharT>& operator+=(EcharT x); |
| 322 | template <class Source> |
| 323 | path& concat(const Source& x); |
| 324 | template <class InputIterator> |
| 325 | path& concat(InputIterator first, InputIterator last); |
| 326 | |
| 327 | // 30.10.8.4.5 modifiers |
| 328 | void clear() noexcept; |
| 329 | path& make_preferred(); |
| 330 | path& remove_filename(); |
| 331 | path& replace_filename(const path& replacement); |
| 332 | path& replace_extension(const path& replacement = path()); |
| 333 | void swap(path& rhs) noexcept; |
| 334 | |
| 335 | // 30.10.8.4.6 native format observers |
| 336 | const string_type& native() const; // this implementation doesn't support noexcept for native() |
| 337 | const value_type* c_str() const; // this implementation doesn't support noexcept for c_str() |
| 338 | operator string_type() const; |
| 339 | template <class EcharT, class traits = std::char_traits<EcharT>, class Allocator = std::allocator<EcharT>> |
| 340 | std::basic_string<EcharT, traits, Allocator> string(const Allocator& a = Allocator()) const; |
| 341 | std::string string() const; |
| 342 | std::wstring wstring() const; |
| 343 | std::string u8string() const; |
| 344 | std::u16string u16string() const; |
| 345 | std::u32string u32string() const; |
| 346 | |
| 347 | // 30.10.8.4.7 generic format observers |
| 348 | template <class EcharT, class traits = std::char_traits<EcharT>, class Allocator = std::allocator<EcharT>> |
| 349 | std::basic_string<EcharT, traits, Allocator> generic_string(const Allocator& a = Allocator()) const; |
| 350 | const std::string& generic_string() const; // this is different from the standard, that returns by value |
| 351 | std::wstring generic_wstring() const; |
| 352 | std::string generic_u8string() const; |
| 353 | std::u16string generic_u16string() const; |
| 354 | std::u32string generic_u32string() const; |
| 355 | |
| 356 | // 30.10.8.4.8 compare |
| 357 | int compare(const path& p) const noexcept; |
| 358 | int compare(const string_type& s) const; |
| 359 | #ifdef __cpp_lib_string_view |
| 360 | int compare(std::basic_string_view<value_type> s) const; |
| 361 | #endif |
| 362 | int compare(const value_type* s) const; |
| 363 | |
| 364 | // 30.10.8.4.9 decomposition |
| 365 | path root_name() const; |
| 366 | path root_directory() const; |
| 367 | path root_path() const; |
| 368 | path relative_path() const; |
| 369 | path parent_path() const; |
| 370 | path filename() const; |
| 371 | path stem() const; |
| 372 | path extension() const; |
| 373 | |
| 374 | // 30.10.8.4.10 query |
| 375 | bool empty() const noexcept; |
| 376 | bool has_root_name() const; |
| 377 | bool has_root_directory() const; |
| 378 | bool has_root_path() const; |
| 379 | bool has_relative_path() const; |
| 380 | bool has_parent_path() const; |
| 381 | bool has_filename() const; |
| 382 | bool has_stem() const; |
| 383 | bool has_extension() const; |
| 384 | bool is_absolute() const; |
| 385 | bool is_relative() const; |
| 386 | |
| 387 | // 30.10.8.4.11 generation |
| 388 | path lexically_normal() const; |
| 389 | path lexically_relative(const path& base) const; |
| 390 | path lexically_proximate(const path& base) const; |
| 391 | |
| 392 | // 30.10.8.5 iterators |
| 393 | class iterator; |
| 394 | using const_iterator = iterator; |
| 395 | iterator begin() const; |
| 396 | iterator end() const; |
| 397 | |
| 398 | private: |
| 399 | using impl_value_type = std::string::value_type; |
| 400 | using impl_string_type = std::basic_string<impl_value_type>; |
| 401 | friend class directory_iterator; |
| 402 | void append_name(const char* name); |
| 403 | static constexpr impl_value_type generic_separator = '/'; |
| 404 | template <typename InputIterator> |
| 405 | class input_iterator_range |
| 406 | { |
| 407 | public: |
| 408 | typedef InputIterator iterator; |
| 409 | typedef InputIterator const_iterator; |
| 410 | typedef typename InputIterator::difference_type difference_type; |
| 411 | |
| 412 | input_iterator_range(const InputIterator& first, const InputIterator& last) |
| 413 | : _first(first) |
| 414 | , _last(last) |
| 415 | { |
| 416 | } |
| 417 | |
| 418 | InputIterator begin() const { return _first; } |
| 419 | InputIterator end() const { return _last; } |
| 420 | |
| 421 | private: |
| 422 | InputIterator _first; |
| 423 | InputIterator _last; |
| 424 | }; |
| 425 | friend void swap(path& lhs, path& rhs) noexcept; |
| 426 | friend size_t hash_value(const path& p) noexcept; |
| 427 | static void postprocess_path_with_format(impl_string_type& p, format fmt); |
| 428 | impl_string_type _path; |
| 429 | #ifdef GHC_OS_WINDOWS |
| 430 | impl_string_type native_impl() const; |
| 431 | mutable string_type _native_cache; |
| 432 | #else |
| 433 | const impl_string_type& native_impl() const; |
| 434 | #endif |
| 435 | }; |
| 436 | |
| 437 | // 30.10.8.6 path non-member functions |
| 438 | GHC_FS_API void swap(path& lhs, path& rhs) noexcept; |
| 439 | GHC_FS_API size_t hash_value(const path& p) noexcept; |
| 440 | GHC_FS_API bool operator==(const path& lhs, const path& rhs) noexcept; |
| 441 | GHC_FS_API bool operator!=(const path& lhs, const path& rhs) noexcept; |
| 442 | GHC_FS_API bool operator<(const path& lhs, const path& rhs) noexcept; |
| 443 | GHC_FS_API bool operator<=(const path& lhs, const path& rhs) noexcept; |
| 444 | GHC_FS_API bool operator>(const path& lhs, const path& rhs) noexcept; |
| 445 | GHC_FS_API bool operator>=(const path& lhs, const path& rhs) noexcept; |
| 446 | |
| 447 | GHC_FS_API path operator/(const path& lhs, const path& rhs); |
| 448 | |
| 449 | // 30.10.8.6.1 path inserter and extractor |
| 450 | template <class charT, class traits> |
| 451 | std::basic_ostream<charT, traits>& operator<<(std::basic_ostream<charT, traits>& os, const path& p); |
| 452 | template <class charT, class traits> |
| 453 | std::basic_istream<charT, traits>& operator>>(std::basic_istream<charT, traits>& is, path& p); |
| 454 | |
| 455 | // 30.10.8.6.2 path factory functions |
| 456 | template <class Source, typename = path::path_from_string<Source>> |
| 457 | path u8path(const Source& source); |
| 458 | template <class InputIterator> |
| 459 | path u8path(InputIterator first, InputIterator last); |
| 460 | |
| 461 | // 30.10.9 class filesystem_error |
| 462 | class GHC_FS_API_CLASS filesystem_error : public std::system_error |
| 463 | { |
| 464 | public: |
| 465 | filesystem_error(const std::string& what_arg, std::error_code ec); |
| 466 | filesystem_error(const std::string& what_arg, const path& p1, std::error_code ec); |
| 467 | filesystem_error(const std::string& what_arg, const path& p1, const path& p2, std::error_code ec); |
| 468 | const path& path1() const noexcept; |
| 469 | const path& path2() const noexcept; |
| 470 | const char* what() const noexcept override; |
| 471 | |
| 472 | private: |
| 473 | std::string _what_arg; |
| 474 | std::error_code _ec; |
| 475 | path _p1, _p2; |
| 476 | }; |
| 477 | |
| 478 | class GHC_FS_API_CLASS path::iterator |
| 479 | { |
| 480 | public: |
| 481 | using value_type = const path; |
| 482 | using difference_type = std::ptrdiff_t; |
| 483 | using pointer = const path*; |
| 484 | using reference = const path&; |
| 485 | using iterator_category = std::bidirectional_iterator_tag; |
| 486 | |
| 487 | iterator(); |
| 488 | iterator(const impl_string_type::const_iterator& first, const impl_string_type::const_iterator& last, const impl_string_type::const_iterator& pos); |
| 489 | iterator& operator++(); |
| 490 | iterator operator++(int); |
| 491 | iterator& operator--(); |
| 492 | iterator operator--(int); |
| 493 | bool operator==(const iterator& other) const; |
| 494 | bool operator!=(const iterator& other) const; |
| 495 | reference operator*() const; |
| 496 | pointer operator->() const; |
| 497 | |
| 498 | private: |
| 499 | impl_string_type::const_iterator increment(const std::string::const_iterator& pos) const; |
| 500 | impl_string_type::const_iterator decrement(const std::string::const_iterator& pos) const; |
| 501 | void updateCurrent(); |
| 502 | impl_string_type::const_iterator _first; |
| 503 | impl_string_type::const_iterator _last; |
| 504 | impl_string_type::const_iterator _root; |
| 505 | impl_string_type::const_iterator _iter; |
| 506 | path _current; |
| 507 | }; |
| 508 | |
| 509 | struct space_info |
| 510 | { |
| 511 | uintmax_t capacity; |
| 512 | uintmax_t free; |
| 513 | uintmax_t available; |
| 514 | }; |
| 515 | |
| 516 | // 30.10.10, enumerations |
| 517 | enum class file_type { |
| 518 | none, |
| 519 | not_found, |
| 520 | regular, |
| 521 | directory, |
| 522 | symlink, |
| 523 | block, |
| 524 | character, |
| 525 | fifo, |
| 526 | socket, |
| 527 | unknown, |
| 528 | }; |
| 529 | |
| 530 | enum class perms : uint16_t { |
| 531 | none = 0, |
| 532 | |
| 533 | owner_read = 0400, |
| 534 | owner_write = 0200, |
| 535 | owner_exec = 0100, |
| 536 | owner_all = 0700, |
| 537 | |
| 538 | group_read = 040, |
| 539 | group_write = 020, |
| 540 | group_exec = 010, |
| 541 | group_all = 070, |
| 542 | |
| 543 | others_read = 04, |
| 544 | others_write = 02, |
| 545 | others_exec = 01, |
| 546 | others_all = 07, |
| 547 | |
| 548 | all = 0777, |
| 549 | set_uid = 04000, |
| 550 | set_gid = 02000, |
| 551 | sticky_bit = 01000, |
| 552 | |
| 553 | mask = 07777, |
| 554 | unknown = 0xffff |
| 555 | }; |
| 556 | |
| 557 | enum class perm_options : uint16_t { |
| 558 | replace = 3, |
| 559 | add = 1, |
| 560 | remove = 2, |
| 561 | nofollow = 4, |
| 562 | }; |
| 563 | |
| 564 | enum class copy_options : uint16_t { |
| 565 | none = 0, |
| 566 | |
| 567 | skip_existing = 1, |
| 568 | overwrite_existing = 2, |
| 569 | update_existing = 4, |
| 570 | |
| 571 | recursive = 8, |
| 572 | |
| 573 | copy_symlinks = 0x10, |
| 574 | skip_symlinks = 0x20, |
| 575 | |
| 576 | directories_only = 0x40, |
| 577 | create_symlinks = 0x80, |
| 578 | create_hard_links = 0x100 |
| 579 | }; |
| 580 | |
| 581 | enum class directory_options : uint16_t { |
| 582 | none = 0, |
| 583 | follow_directory_symlink = 1, |
| 584 | skip_permission_denied = 2, |
| 585 | }; |
| 586 | |
| 587 | // 30.10.11 class file_status |
| 588 | class GHC_FS_API_CLASS file_status |
| 589 | { |
| 590 | public: |
| 591 | // 30.10.11.1 constructors and destructor |
| 592 | file_status() noexcept; |
| 593 | explicit file_status(file_type ft, perms prms = perms::unknown) noexcept; |
| 594 | file_status(const file_status&) noexcept; |
| 595 | file_status(file_status&&) noexcept; |
| 596 | ~file_status(); |
| 597 | // assignments: |
| 598 | file_status& operator=(const file_status&) noexcept; |
| 599 | file_status& operator=(file_status&&) noexcept; |
| 600 | // 30.10.11.3 modifiers |
| 601 | void type(file_type ft) noexcept; |
| 602 | void permissions(perms prms) noexcept; |
| 603 | // 30.10.11.2 observers |
| 604 | file_type type() const noexcept; |
| 605 | perms permissions() const noexcept; |
| 606 | |
| 607 | private: |
| 608 | file_type _type; |
| 609 | perms _perms; |
| 610 | }; |
| 611 | |
| 612 | using file_time_type = std::chrono::time_point<std::chrono::system_clock>; |
| 613 | |
| 614 | // 30.10.12 Class directory_entry |
| 615 | class GHC_FS_API_CLASS directory_entry |
| 616 | { |
| 617 | public: |
| 618 | // 30.10.12.1 constructors and destructor |
| 619 | directory_entry() noexcept = default; |
| 620 | directory_entry(const directory_entry&) = default; |
| 621 | directory_entry(directory_entry&&) noexcept = default; |
| 622 | explicit directory_entry(const path& p); |
| 623 | directory_entry(const path& p, std::error_code& ec); |
| 624 | ~directory_entry(); |
| 625 | |
| 626 | // assignments: |
| 627 | directory_entry& operator=(const directory_entry&) = default; |
| 628 | directory_entry& operator=(directory_entry&&) noexcept = default; |
| 629 | |
| 630 | // 30.10.12.2 modifiers |
| 631 | void assign(const path& p); |
| 632 | void assign(const path& p, std::error_code& ec); |
| 633 | void replace_filename(const path& p); |
| 634 | void replace_filename(const path& p, std::error_code& ec); |
| 635 | void refresh(); |
| 636 | void refresh(std::error_code& ec) noexcept; |
| 637 | |
| 638 | // 30.10.12.3 observers |
| 639 | const filesystem::path& path() const noexcept; |
| 640 | operator const filesystem::path&() const noexcept; |
| 641 | bool exists() const; |
| 642 | bool exists(std::error_code& ec) const noexcept; |
| 643 | bool is_block_file() const; |
| 644 | bool is_block_file(std::error_code& ec) const noexcept; |
| 645 | bool is_character_file() const; |
| 646 | bool is_character_file(std::error_code& ec) const noexcept; |
| 647 | bool is_directory() const; |
| 648 | bool is_directory(std::error_code& ec) const noexcept; |
| 649 | bool is_fifo() const; |
| 650 | bool is_fifo(std::error_code& ec) const noexcept; |
| 651 | bool is_other() const; |
| 652 | bool is_other(std::error_code& ec) const noexcept; |
| 653 | bool is_regular_file() const; |
| 654 | bool is_regular_file(std::error_code& ec) const noexcept; |
| 655 | bool is_socket() const; |
| 656 | bool is_socket(std::error_code& ec) const noexcept; |
| 657 | bool is_symlink() const; |
| 658 | bool is_symlink(std::error_code& ec) const noexcept; |
| 659 | uintmax_t file_size() const; |
| 660 | uintmax_t file_size(std::error_code& ec) const noexcept; |
| 661 | uintmax_t hard_link_count() const; |
| 662 | uintmax_t hard_link_count(std::error_code& ec) const noexcept; |
| 663 | file_time_type last_write_time() const; |
| 664 | file_time_type last_write_time(std::error_code& ec) const noexcept; |
| 665 | |
| 666 | file_status status() const; |
| 667 | file_status status(std::error_code& ec) const noexcept; |
| 668 | |
| 669 | file_status symlink_status() const; |
| 670 | file_status symlink_status(std::error_code& ec) const noexcept; |
| 671 | bool operator<(const directory_entry& rhs) const noexcept; |
| 672 | bool operator==(const directory_entry& rhs) const noexcept; |
| 673 | bool operator!=(const directory_entry& rhs) const noexcept; |
| 674 | bool operator<=(const directory_entry& rhs) const noexcept; |
| 675 | bool operator>(const directory_entry& rhs) const noexcept; |
| 676 | bool operator>=(const directory_entry& rhs) const noexcept; |
| 677 | |
| 678 | private: |
| 679 | friend class directory_iterator; |
| 680 | filesystem::path _path; |
| 681 | file_status _status; |
| 682 | file_status _symlink_status; |
| 683 | uintmax_t _file_size = 0; |
| 684 | #ifndef GHC_OS_WINDOWS |
| 685 | uintmax_t _hard_link_count = 0; |
| 686 | #endif |
| 687 | time_t _last_write_time = 0; |
| 688 | }; |
| 689 | |
| 690 | // 30.10.13 Class directory_iterator |
| 691 | class GHC_FS_API_CLASS directory_iterator |
| 692 | { |
| 693 | public: |
| 694 | class GHC_FS_API_CLASS proxy |
| 695 | { |
| 696 | public: |
| 697 | const directory_entry& operator*() const& noexcept { return _dir_entry; } |
| 698 | directory_entry operator*() && noexcept { return std::move(_dir_entry); } |
| 699 | |
| 700 | private: |
| 701 | explicit proxy(const directory_entry& dir_entry) |
| 702 | : _dir_entry(dir_entry) |
| 703 | { |
| 704 | } |
| 705 | friend class directory_iterator; |
| 706 | friend class recursive_directory_iterator; |
| 707 | directory_entry _dir_entry; |
| 708 | }; |
| 709 | using iterator_category = std::input_iterator_tag; |
| 710 | using value_type = directory_entry; |
| 711 | using difference_type = std::ptrdiff_t; |
| 712 | using pointer = const directory_entry*; |
| 713 | using reference = const directory_entry&; |
| 714 | |
| 715 | // 30.10.13.1 member functions |
| 716 | directory_iterator() noexcept; |
| 717 | explicit directory_iterator(const path& p); |
| 718 | directory_iterator(const path& p, directory_options options); |
| 719 | directory_iterator(const path& p, std::error_code& ec) noexcept; |
| 720 | directory_iterator(const path& p, directory_options options, std::error_code& ec) noexcept; |
| 721 | directory_iterator(const directory_iterator& rhs); |
| 722 | directory_iterator(directory_iterator&& rhs) noexcept; |
| 723 | ~directory_iterator(); |
| 724 | directory_iterator& operator=(const directory_iterator& rhs); |
| 725 | directory_iterator& operator=(directory_iterator&& rhs) noexcept; |
| 726 | const directory_entry& operator*() const; |
| 727 | const directory_entry* operator->() const; |
| 728 | directory_iterator& operator++(); |
| 729 | directory_iterator& increment(std::error_code& ec) noexcept; |
| 730 | |
| 731 | // other members as required by 27.2.3, input iterators |
| 732 | proxy operator++(int) |
| 733 | { |
| 734 | proxy p{**this}; |
| 735 | ++*this; |
| 736 | return p; |
| 737 | } |
| 738 | bool operator==(const directory_iterator& rhs) const; |
| 739 | bool operator!=(const directory_iterator& rhs) const; |
| 740 | |
| 741 | private: |
| 742 | friend class recursive_directory_iterator; |
| 743 | class impl; |
| 744 | std::shared_ptr<impl> _impl; |
| 745 | }; |
| 746 | |
| 747 | // 30.10.13.2 directory_iterator non-member functions |
| 748 | GHC_FS_API directory_iterator begin(directory_iterator iter) noexcept; |
| 749 | GHC_FS_API directory_iterator end(const directory_iterator&) noexcept; |
| 750 | |
| 751 | // 30.10.14 class recursive_directory_iterator |
| 752 | class GHC_FS_API_CLASS recursive_directory_iterator |
| 753 | { |
| 754 | public: |
| 755 | using iterator_category = std::input_iterator_tag; |
| 756 | using value_type = directory_entry; |
| 757 | using difference_type = std::ptrdiff_t; |
| 758 | using pointer = const directory_entry*; |
| 759 | using reference = const directory_entry&; |
| 760 | |
| 761 | // 30.10.14.1 constructors and destructor |
| 762 | recursive_directory_iterator() noexcept; |
| 763 | explicit recursive_directory_iterator(const path& p); |
| 764 | recursive_directory_iterator(const path& p, directory_options options); |
| 765 | recursive_directory_iterator(const path& p, directory_options options, std::error_code& ec) noexcept; |
| 766 | recursive_directory_iterator(const path& p, std::error_code& ec) noexcept; |
| 767 | recursive_directory_iterator(const recursive_directory_iterator& rhs); |
| 768 | recursive_directory_iterator(recursive_directory_iterator&& rhs) noexcept; |
| 769 | ~recursive_directory_iterator(); |
| 770 | |
| 771 | // 30.10.14.1 observers |
| 772 | directory_options options() const; |
| 773 | int depth() const; |
| 774 | bool recursion_pending() const; |
| 775 | |
| 776 | const directory_entry& operator*() const; |
| 777 | const directory_entry* operator->() const; |
| 778 | |
| 779 | // 30.10.14.1 modifiers recursive_directory_iterator& |
| 780 | recursive_directory_iterator& operator=(const recursive_directory_iterator& rhs); |
| 781 | recursive_directory_iterator& operator=(recursive_directory_iterator&& rhs) noexcept; |
| 782 | recursive_directory_iterator& operator++(); |
| 783 | recursive_directory_iterator& increment(std::error_code& ec) noexcept; |
| 784 | |
| 785 | void pop(); |
| 786 | void pop(std::error_code& ec); |
| 787 | void disable_recursion_pending(); |
| 788 | |
| 789 | // other members as required by 27.2.3, input iterators |
| 790 | directory_iterator::proxy operator++(int) |
| 791 | { |
| 792 | directory_iterator::proxy proxy{**this}; |
| 793 | ++*this; |
| 794 | return proxy; |
| 795 | } |
| 796 | bool operator==(const recursive_directory_iterator& rhs) const; |
| 797 | bool operator!=(const recursive_directory_iterator& rhs) const; |
| 798 | |
| 799 | private: |
| 800 | struct recursive_directory_iterator_impl |
| 801 | { |
| 802 | directory_options _options; |
| 803 | bool _recursion_pending; |
| 804 | std::stack<directory_iterator> _dir_iter_stack; |
| 805 | recursive_directory_iterator_impl(directory_options options, bool recursion_pending) |
| 806 | : _options(options) |
| 807 | , _recursion_pending(recursion_pending) |
| 808 | { |
| 809 | } |
| 810 | }; |
| 811 | std::shared_ptr<recursive_directory_iterator_impl> _impl; |
| 812 | }; |
| 813 | |
| 814 | // 30.10.14.2 directory_iterator non-member functions |
| 815 | GHC_FS_API recursive_directory_iterator begin(recursive_directory_iterator iter) noexcept; |
| 816 | GHC_FS_API recursive_directory_iterator end(const recursive_directory_iterator&) noexcept; |
| 817 | |
| 818 | // 30.10.15 filesystem operations |
| 819 | GHC_FS_API path absolute(const path& p); |
| 820 | GHC_FS_API path absolute(const path& p, std::error_code& ec); |
| 821 | |
| 822 | GHC_FS_API path canonical(const path& p); |
| 823 | GHC_FS_API path canonical(const path& p, std::error_code& ec); |
| 824 | |
| 825 | GHC_FS_API void copy(const path& from, const path& to); |
| 826 | GHC_FS_API void copy(const path& from, const path& to, std::error_code& ec) noexcept; |
| 827 | GHC_FS_API void copy(const path& from, const path& to, copy_options options); |
| 828 | GHC_FS_API void copy(const path& from, const path& to, copy_options options, std::error_code& ec) noexcept; |
| 829 | |
| 830 | GHC_FS_API bool copy_file(const path& from, const path& to); |
| 831 | GHC_FS_API bool copy_file(const path& from, const path& to, std::error_code& ec) noexcept; |
| 832 | GHC_FS_API bool copy_file(const path& from, const path& to, copy_options option); |
| 833 | GHC_FS_API bool copy_file(const path& from, const path& to, copy_options option, std::error_code& ec) noexcept; |
| 834 | |
| 835 | GHC_FS_API void copy_symlink(const path& existing_symlink, const path& new_symlink); |
| 836 | GHC_FS_API void copy_symlink(const path& existing_symlink, const path& new_symlink, std::error_code& ec) noexcept; |
| 837 | |
| 838 | GHC_FS_API bool create_directories(const path& p); |
| 839 | GHC_FS_API bool create_directories(const path& p, std::error_code& ec) noexcept; |
| 840 | |
| 841 | GHC_FS_API bool create_directory(const path& p); |
| 842 | GHC_FS_API bool create_directory(const path& p, std::error_code& ec) noexcept; |
| 843 | |
| 844 | GHC_FS_API bool create_directory(const path& p, const path& attributes); |
| 845 | GHC_FS_API bool create_directory(const path& p, const path& attributes, std::error_code& ec) noexcept; |
| 846 | |
| 847 | GHC_FS_API void create_directory_symlink(const path& to, const path& new_symlink); |
| 848 | GHC_FS_API void create_directory_symlink(const path& to, const path& new_symlink, std::error_code& ec) noexcept; |
| 849 | |
| 850 | GHC_FS_API void create_hard_link(const path& to, const path& new_hard_link); |
| 851 | GHC_FS_API void create_hard_link(const path& to, const path& new_hard_link, std::error_code& ec) noexcept; |
| 852 | |
| 853 | GHC_FS_API void create_symlink(const path& to, const path& new_symlink); |
| 854 | GHC_FS_API void create_symlink(const path& to, const path& new_symlink, std::error_code& ec) noexcept; |
| 855 | |
| 856 | GHC_FS_API path current_path(); |
| 857 | GHC_FS_API path current_path(std::error_code& ec); |
| 858 | GHC_FS_API void current_path(const path& p); |
| 859 | GHC_FS_API void current_path(const path& p, std::error_code& ec) noexcept; |
| 860 | |
| 861 | GHC_FS_API bool exists(file_status s) noexcept; |
| 862 | GHC_FS_API bool exists(const path& p); |
| 863 | GHC_FS_API bool exists(const path& p, std::error_code& ec) noexcept; |
| 864 | |
| 865 | GHC_FS_API bool equivalent(const path& p1, const path& p2); |
| 866 | GHC_FS_API bool equivalent(const path& p1, const path& p2, std::error_code& ec) noexcept; |
| 867 | |
| 868 | GHC_FS_API uintmax_t file_size(const path& p); |
| 869 | GHC_FS_API uintmax_t file_size(const path& p, std::error_code& ec) noexcept; |
| 870 | |
| 871 | GHC_FS_API uintmax_t hard_link_count(const path& p); |
| 872 | GHC_FS_API uintmax_t hard_link_count(const path& p, std::error_code& ec) noexcept; |
| 873 | |
| 874 | GHC_FS_API bool is_block_file(file_status s) noexcept; |
| 875 | GHC_FS_API bool is_block_file(const path& p); |
| 876 | GHC_FS_API bool is_block_file(const path& p, std::error_code& ec) noexcept; |
| 877 | GHC_FS_API bool is_character_file(file_status s) noexcept; |
| 878 | GHC_FS_API bool is_character_file(const path& p); |
| 879 | GHC_FS_API bool is_character_file(const path& p, std::error_code& ec) noexcept; |
| 880 | GHC_FS_API bool is_directory(file_status s) noexcept; |
| 881 | GHC_FS_API bool is_directory(const path& p); |
| 882 | GHC_FS_API bool is_directory(const path& p, std::error_code& ec) noexcept; |
| 883 | GHC_FS_API bool is_empty(const path& p); |
| 884 | GHC_FS_API bool is_empty(const path& p, std::error_code& ec) noexcept; |
| 885 | GHC_FS_API bool is_fifo(file_status s) noexcept; |
| 886 | GHC_FS_API bool is_fifo(const path& p); |
| 887 | GHC_FS_API bool is_fifo(const path& p, std::error_code& ec) noexcept; |
| 888 | GHC_FS_API bool is_other(file_status s) noexcept; |
| 889 | GHC_FS_API bool is_other(const path& p); |
| 890 | GHC_FS_API bool is_other(const path& p, std::error_code& ec) noexcept; |
| 891 | GHC_FS_API bool is_regular_file(file_status s) noexcept; |
| 892 | GHC_FS_API bool is_regular_file(const path& p); |
| 893 | GHC_FS_API bool is_regular_file(const path& p, std::error_code& ec) noexcept; |
| 894 | GHC_FS_API bool is_socket(file_status s) noexcept; |
| 895 | GHC_FS_API bool is_socket(const path& p); |
| 896 | GHC_FS_API bool is_socket(const path& p, std::error_code& ec) noexcept; |
| 897 | GHC_FS_API bool is_symlink(file_status s) noexcept; |
| 898 | GHC_FS_API bool is_symlink(const path& p); |
| 899 | GHC_FS_API bool is_symlink(const path& p, std::error_code& ec) noexcept; |
| 900 | |
| 901 | GHC_FS_API file_time_type last_write_time(const path& p); |
| 902 | GHC_FS_API file_time_type last_write_time(const path& p, std::error_code& ec) noexcept; |
| 903 | GHC_FS_API void last_write_time(const path& p, file_time_type new_time); |
| 904 | GHC_FS_API void last_write_time(const path& p, file_time_type new_time, std::error_code& ec) noexcept; |
| 905 | |
| 906 | GHC_FS_API void permissions(const path& p, perms prms, perm_options opts = perm_options::replace); |
| 907 | GHC_FS_API void permissions(const path& p, perms prms, std::error_code& ec) noexcept; |
| 908 | GHC_FS_API void permissions(const path& p, perms prms, perm_options opts, std::error_code& ec); |
| 909 | |
| 910 | GHC_FS_API path proximate(const path& p, std::error_code& ec); |
| 911 | GHC_FS_API path proximate(const path& p, const path& base = current_path()); |
| 912 | GHC_FS_API path proximate(const path& p, const path& base, std::error_code& ec); |
| 913 | |
| 914 | GHC_FS_API path read_symlink(const path& p); |
| 915 | GHC_FS_API path read_symlink(const path& p, std::error_code& ec); |
| 916 | |
| 917 | GHC_FS_API path relative(const path& p, std::error_code& ec); |
| 918 | GHC_FS_API path relative(const path& p, const path& base = current_path()); |
| 919 | GHC_FS_API path relative(const path& p, const path& base, std::error_code& ec); |
| 920 | |
| 921 | GHC_FS_API bool remove(const path& p); |
| 922 | GHC_FS_API bool remove(const path& p, std::error_code& ec) noexcept; |
| 923 | |
| 924 | GHC_FS_API uintmax_t remove_all(const path& p); |
| 925 | GHC_FS_API uintmax_t remove_all(const path& p, std::error_code& ec) noexcept; |
| 926 | |
| 927 | GHC_FS_API void rename(const path& from, const path& to); |
| 928 | GHC_FS_API void rename(const path& from, const path& to, std::error_code& ec) noexcept; |
| 929 | |
| 930 | GHC_FS_API void resize_file(const path& p, uintmax_t size); |
| 931 | GHC_FS_API void resize_file(const path& p, uintmax_t size, std::error_code& ec) noexcept; |
| 932 | |
| 933 | GHC_FS_API space_info space(const path& p); |
| 934 | GHC_FS_API space_info space(const path& p, std::error_code& ec) noexcept; |
| 935 | |
| 936 | GHC_FS_API file_status status(const path& p); |
| 937 | GHC_FS_API file_status status(const path& p, std::error_code& ec) noexcept; |
| 938 | |
| 939 | GHC_FS_API bool status_known(file_status s) noexcept; |
| 940 | |
| 941 | GHC_FS_API file_status symlink_status(const path& p); |
| 942 | GHC_FS_API file_status symlink_status(const path& p, std::error_code& ec) noexcept; |
| 943 | |
| 944 | GHC_FS_API path temp_directory_path(); |
| 945 | GHC_FS_API path temp_directory_path(std::error_code& ec) noexcept; |
| 946 | |
| 947 | GHC_FS_API path weakly_canonical(const path& p); |
| 948 | GHC_FS_API path weakly_canonical(const path& p, std::error_code& ec) noexcept; |
| 949 | |
| 950 | // Non-C++17 add-on std::fstream wrappers with path |
| 951 | template <class charT, class traits = std::char_traits<charT>> |
| 952 | class basic_filebuf : public std::basic_filebuf<charT, traits> |
| 953 | { |
| 954 | public: |
| 955 | basic_filebuf() {} |
| 956 | ~basic_filebuf() override {} |
| 957 | basic_filebuf(const basic_filebuf&) = delete; |
| 958 | const basic_filebuf& operator=(const basic_filebuf&) = delete; |
| 959 | basic_filebuf<charT, traits>* open(const path& p, std::ios_base::openmode mode) |
| 960 | { |
| 961 | #if defined(GHC_OS_WINDOWS) && !defined(__GNUC__) |
| 962 | return std::basic_filebuf<charT, traits>::open(p.wstring().c_str(), mode) ? this : 0; |
| 963 | #else |
| 964 | return std::basic_filebuf<charT, traits>::open(p.string().c_str(), mode) ? this : 0; |
| 965 | #endif |
| 966 | } |
| 967 | }; |
| 968 | |
| 969 | template <class charT, class traits = std::char_traits<charT>> |
| 970 | class basic_ifstream : public std::basic_ifstream<charT, traits> |
| 971 | { |
| 972 | public: |
| 973 | basic_ifstream() {} |
| 974 | #if defined(GHC_OS_WINDOWS) && !defined(__GNUC__) |
| 975 | explicit basic_ifstream(const path& p, std::ios_base::openmode mode = std::ios_base::in) |
| 976 | : std::basic_ifstream<charT, traits>(p.wstring().c_str(), mode) |
| 977 | { |
| 978 | } |
| 979 | 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); } |
| 980 | #else |
| 981 | explicit basic_ifstream(const path& p, std::ios_base::openmode mode = std::ios_base::in) |
| 982 | : std::basic_ifstream<charT, traits>(p.string().c_str(), mode) |
| 983 | { |
| 984 | } |
| 985 | 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); } |
| 986 | #endif |
| 987 | basic_ifstream(const basic_ifstream&) = delete; |
| 988 | const basic_ifstream& operator=(const basic_ifstream&) = delete; |
| 989 | ~basic_ifstream() override {} |
| 990 | }; |
| 991 | |
| 992 | template <class charT, class traits = std::char_traits<charT>> |
| 993 | class basic_ofstream : public std::basic_ofstream<charT, traits> |
| 994 | { |
| 995 | public: |
| 996 | basic_ofstream() {} |
| 997 | #if defined(GHC_OS_WINDOWS) && !defined(__GNUC__) |
| 998 | explicit basic_ofstream(const path& p, std::ios_base::openmode mode = std::ios_base::out) |
| 999 | : std::basic_ofstream<charT, traits>(p.wstring().c_str(), mode) |
| 1000 | { |
| 1001 | } |
| 1002 | 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); } |
| 1003 | #else |
| 1004 | explicit basic_ofstream(const path& p, std::ios_base::openmode mode = std::ios_base::out) |
| 1005 | : std::basic_ofstream<charT, traits>(p.string().c_str(), mode) |
| 1006 | { |
| 1007 | } |
| 1008 | 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); } |
| 1009 | #endif |
| 1010 | basic_ofstream(const basic_ofstream&) = delete; |
| 1011 | const basic_ofstream& operator=(const basic_ofstream&) = delete; |
| 1012 | ~basic_ofstream() override {} |
| 1013 | }; |
| 1014 | |
| 1015 | template <class charT, class traits = std::char_traits<charT>> |
| 1016 | class basic_fstream : public std::basic_fstream<charT, traits> |
| 1017 | { |
| 1018 | public: |
| 1019 | basic_fstream() {} |
| 1020 | #if defined(GHC_OS_WINDOWS) && !defined(__GNUC__) |
| 1021 | explicit basic_fstream(const path& p, std::ios_base::openmode mode = std::ios_base::in | std::ios_base::out) |
| 1022 | : std::basic_fstream<charT, traits>(p.wstring().c_str(), mode) |
| 1023 | { |
| 1024 | } |
| 1025 | 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); } |
| 1026 | #else |
| 1027 | explicit basic_fstream(const path& p, std::ios_base::openmode mode = std::ios_base::in | std::ios_base::out) |
| 1028 | : std::basic_fstream<charT, traits>(p.string().c_str(), mode) |
| 1029 | { |
| 1030 | } |
| 1031 | 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); } |
| 1032 | #endif |
| 1033 | basic_fstream(const basic_fstream&) = delete; |
| 1034 | const basic_fstream& operator=(const basic_fstream&) = delete; |
| 1035 | ~basic_fstream() override {} |
| 1036 | }; |
| 1037 | |
| 1038 | typedef basic_filebuf<char> filebuf; |
| 1039 | typedef basic_filebuf<wchar_t> wfilebuf; |
| 1040 | typedef basic_ifstream<char> ifstream; |
| 1041 | typedef basic_ifstream<wchar_t> wifstream; |
| 1042 | typedef basic_ofstream<char> ofstream; |
| 1043 | typedef basic_ofstream<wchar_t> wofstream; |
| 1044 | typedef basic_fstream<char> fstream; |
| 1045 | typedef basic_fstream<wchar_t> wfstream; |
| 1046 | |
| 1047 | class GHC_FS_API_CLASS u8arguments |
| 1048 | { |
| 1049 | public: |
| 1050 | u8arguments(int& argc, char**& argv); |
| 1051 | ~u8arguments() |
| 1052 | { |
| 1053 | _refargc = _argc; |
| 1054 | _refargv = _argv; |
| 1055 | } |
| 1056 | |
| 1057 | bool valid() const { return _isvalid; } |
| 1058 | |
| 1059 | private: |
| 1060 | int _argc; |
| 1061 | char** _argv; |
| 1062 | int& _refargc; |
| 1063 | char**& _refargv; |
| 1064 | bool _isvalid; |
| 1065 | #ifdef GHC_OS_WINDOWS |
| 1066 | std::vector<std::string> _args; |
| 1067 | std::vector<char*> _argp; |
| 1068 | #endif |
| 1069 | }; |
| 1070 | |
| 1071 | //------------------------------------------------------------------------------------------------- |
| 1072 | // Implementation |
| 1073 | //------------------------------------------------------------------------------------------------- |
| 1074 | |
| 1075 | namespace detail { |
| 1076 | // GHC_FS_API void postprocess_path_with_format(path::impl_string_type& p, path::format fmt); |
| 1077 | enum utf8_states_t { S_STRT = 0, S_RJCT = 8 }; |
| 1078 | GHC_FS_API void appendUTF8(std::string& str, uint32_t unicode); |
| 1079 | GHC_FS_API bool is_surrogate(uint32_t c); |
| 1080 | GHC_FS_API bool is_high_surrogate(uint32_t c); |
| 1081 | GHC_FS_API bool is_low_surrogate(uint32_t c); |
| 1082 | GHC_FS_API unsigned consumeUtf8Fragment(const unsigned state, const uint8_t fragment, uint32_t& codepoint); |
| 1083 | enum class portable_error { |
| 1084 | none = 0, |
| 1085 | exists, |
| 1086 | not_found, |
| 1087 | not_supported, |
| 1088 | not_implemented, |
| 1089 | invalid_argument, |
| 1090 | is_a_directory, |
| 1091 | }; |
| 1092 | GHC_FS_API std::error_code make_error_code(portable_error err); |
| 1093 | #ifdef GHC_OS_WINDOWS |
| 1094 | GHC_FS_API std::error_code make_system_error(uint32_t err = 0); |
| 1095 | #else |
| 1096 | GHC_FS_API std::error_code make_system_error(int err = 0); |
| 1097 | #endif |
| 1098 | } // namespace detail |
| 1099 | |
| 1100 | namespace detail { |
| 1101 | |
| 1102 | #ifdef GHC_EXPAND_IMPL |
| 1103 | |
| 1104 | GHC_INLINE std::error_code make_error_code(portable_error err) |
| 1105 | { |
| 1106 | #ifdef GHC_OS_WINDOWS |
| 1107 | switch (err) { |
| 1108 | case portable_error::none: |
| 1109 | return std::error_code(); |
| 1110 | case portable_error::exists: |
| 1111 | return std::error_code(ERROR_ALREADY_EXISTS, std::system_category()); |
| 1112 | case portable_error::not_found: |
| 1113 | return std::error_code(ERROR_PATH_NOT_FOUND, std::system_category()); |
| 1114 | case portable_error::not_supported: |
| 1115 | return std::error_code(ERROR_NOT_SUPPORTED, std::system_category()); |
| 1116 | case portable_error::not_implemented: |
| 1117 | return std::error_code(ERROR_CALL_NOT_IMPLEMENTED, std::system_category()); |
| 1118 | case portable_error::invalid_argument: |
| 1119 | return std::error_code(ERROR_INVALID_PARAMETER, std::system_category()); |
| 1120 | case portable_error::is_a_directory: |
| 1121 | #ifdef ERROR_DIRECTORY_NOT_SUPPORTED |
| 1122 | return std::error_code(ERROR_DIRECTORY_NOT_SUPPORTED, std::system_category()); |
| 1123 | #else |
| 1124 | return std::error_code(ERROR_NOT_SUPPORTED, std::system_category()); |
| 1125 | #endif |
| 1126 | } |
| 1127 | #else |
| 1128 | switch (err) { |
| 1129 | case portable_error::none: |
| 1130 | return std::error_code(); |
| 1131 | case portable_error::exists: |
| 1132 | return std::error_code(EEXIST, std::system_category()); |
| 1133 | case portable_error::not_found: |
| 1134 | return std::error_code(ENOENT, std::system_category()); |
| 1135 | case portable_error::not_supported: |
| 1136 | return std::error_code(ENOTSUP, std::system_category()); |
| 1137 | case portable_error::not_implemented: |
| 1138 | return std::error_code(ENOSYS, std::system_category()); |
| 1139 | case portable_error::invalid_argument: |
| 1140 | return std::error_code(EINVAL, std::system_category()); |
| 1141 | case portable_error::is_a_directory: |
| 1142 | return std::error_code(EISDIR, std::system_category()); |
| 1143 | } |
| 1144 | #endif |
| 1145 | return std::error_code(); |
| 1146 | } |
| 1147 | |
| 1148 | #ifdef GHC_OS_WINDOWS |
| 1149 | GHC_INLINE std::error_code make_system_error(uint32_t err) |
| 1150 | { |
| 1151 | return std::error_code(err ? static_cast<int>(err) : static_cast<int>(::GetLastError()), std::system_category()); |
| 1152 | } |
| 1153 | #else |
| 1154 | GHC_INLINE std::error_code make_system_error(int err) |
| 1155 | { |
| 1156 | return std::error_code(err ? err : errno, std::system_category()); |
| 1157 | } |
| 1158 | #endif |
Jim Flynn | 6217c3d | 2022-06-14 10:58:23 +0100 | [diff] [blame] | 1159 | |
Jan Eilers | 307fd34 | 2020-06-23 14:16:04 +0100 | [diff] [blame] | 1160 | #endif // GHC_EXPAND_IMPL |
| 1161 | |
| 1162 | template <typename Enum> |
| 1163 | 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; |
| 1164 | } // namespace detail |
| 1165 | |
| 1166 | template <typename Enum> |
| 1167 | detail::EnableBitmask<Enum> operator&(Enum X, Enum Y) |
| 1168 | { |
| 1169 | using underlying = typename std::underlying_type<Enum>::type; |
| 1170 | return static_cast<Enum>(static_cast<underlying>(X) & static_cast<underlying>(Y)); |
| 1171 | } |
| 1172 | |
| 1173 | template <typename Enum> |
| 1174 | detail::EnableBitmask<Enum> operator|(Enum X, Enum Y) |
| 1175 | { |
| 1176 | using underlying = typename std::underlying_type<Enum>::type; |
| 1177 | return static_cast<Enum>(static_cast<underlying>(X) | static_cast<underlying>(Y)); |
| 1178 | } |
| 1179 | |
| 1180 | template <typename Enum> |
| 1181 | detail::EnableBitmask<Enum> operator^(Enum X, Enum Y) |
| 1182 | { |
| 1183 | using underlying = typename std::underlying_type<Enum>::type; |
| 1184 | return static_cast<Enum>(static_cast<underlying>(X) ^ static_cast<underlying>(Y)); |
| 1185 | } |
| 1186 | |
| 1187 | template <typename Enum> |
| 1188 | detail::EnableBitmask<Enum> operator~(Enum X) |
| 1189 | { |
| 1190 | using underlying = typename std::underlying_type<Enum>::type; |
| 1191 | return static_cast<Enum>(~static_cast<underlying>(X)); |
| 1192 | } |
| 1193 | |
| 1194 | template <typename Enum> |
| 1195 | detail::EnableBitmask<Enum>& operator&=(Enum& X, Enum Y) |
| 1196 | { |
| 1197 | X = X & Y; |
| 1198 | return X; |
| 1199 | } |
| 1200 | |
| 1201 | template <typename Enum> |
| 1202 | detail::EnableBitmask<Enum>& operator|=(Enum& X, Enum Y) |
| 1203 | { |
| 1204 | X = X | Y; |
| 1205 | return X; |
| 1206 | } |
| 1207 | |
| 1208 | template <typename Enum> |
| 1209 | detail::EnableBitmask<Enum>& operator^=(Enum& X, Enum Y) |
| 1210 | { |
| 1211 | X = X ^ Y; |
| 1212 | return X; |
| 1213 | } |
| 1214 | |
| 1215 | #ifdef GHC_EXPAND_IMPL |
| 1216 | |
| 1217 | namespace detail { |
| 1218 | |
| 1219 | GHC_INLINE bool in_range(uint32_t c, uint32_t lo, uint32_t hi) |
| 1220 | { |
| 1221 | return (static_cast<uint32_t>(c - lo) < (hi - lo + 1)); |
| 1222 | } |
| 1223 | |
| 1224 | GHC_INLINE bool is_surrogate(uint32_t c) |
| 1225 | { |
| 1226 | return in_range(c, 0xd800, 0xdfff); |
| 1227 | } |
| 1228 | |
| 1229 | GHC_INLINE bool is_high_surrogate(uint32_t c) |
| 1230 | { |
| 1231 | return (c & 0xfffffc00) == 0xd800; |
| 1232 | } |
| 1233 | |
| 1234 | GHC_INLINE bool is_low_surrogate(uint32_t c) |
| 1235 | { |
| 1236 | return (c & 0xfffffc00) == 0xdc00; |
| 1237 | } |
| 1238 | |
| 1239 | GHC_INLINE void appendUTF8(std::string& str, uint32_t unicode) |
| 1240 | { |
| 1241 | if (unicode <= 0x7f) { |
| 1242 | str.push_back(static_cast<char>(unicode)); |
| 1243 | } |
| 1244 | else if (unicode >= 0x80 && unicode <= 0x7ff) { |
| 1245 | str.push_back(static_cast<char>((unicode >> 6) + 192)); |
| 1246 | str.push_back(static_cast<char>((unicode & 0x3f) + 128)); |
| 1247 | } |
| 1248 | else if ((unicode >= 0x800 && unicode <= 0xd7ff) || (unicode >= 0xe000 && unicode <= 0xffff)) { |
| 1249 | str.push_back(static_cast<char>((unicode >> 12) + 224)); |
| 1250 | str.push_back(static_cast<char>(((unicode & 0xfff) >> 6) + 128)); |
| 1251 | str.push_back(static_cast<char>((unicode & 0x3f) + 128)); |
| 1252 | } |
| 1253 | else if (unicode >= 0x10000 && unicode <= 0x10ffff) { |
| 1254 | str.push_back(static_cast<char>((unicode >> 18) + 240)); |
| 1255 | str.push_back(static_cast<char>(((unicode & 0x3ffff) >> 12) + 128)); |
| 1256 | str.push_back(static_cast<char>(((unicode & 0xfff) >> 6) + 128)); |
| 1257 | str.push_back(static_cast<char>((unicode & 0x3f) + 128)); |
| 1258 | } |
| 1259 | else { |
| 1260 | #ifdef GHC_RAISE_UNICODE_ERRORS |
| 1261 | throw filesystem_error("Illegal code point for unicode character.", str, std::make_error_code(std::errc::illegal_byte_sequence)); |
| 1262 | #else |
| 1263 | appendUTF8(str, 0xfffd); |
| 1264 | #endif |
| 1265 | } |
| 1266 | } |
| 1267 | |
| 1268 | // Thanks to Bjoern Hoehrmann (https://bjoern.hoehrmann.de/utf-8/decoder/dfa/) |
| 1269 | // and Taylor R Campbell for the ideas to this DFA approach of UTF-8 decoding; |
| 1270 | // Generating debugging and shrinking my own DFA from scratch was a day of fun! |
| 1271 | GHC_INLINE unsigned consumeUtf8Fragment(const unsigned state, const uint8_t fragment, uint32_t& codepoint) |
| 1272 | { |
| 1273 | static const uint32_t utf8_state_info[] = { |
| 1274 | // encoded states |
| 1275 | 0x11111111u, 0x11111111u, 0x77777777u, 0x77777777u, 0x88888888u, 0x88888888u, 0x88888888u, 0x88888888u, 0x22222299u, 0x22222222u, 0x22222222u, 0x22222222u, 0x3333333au, 0x33433333u, 0x9995666bu, 0x99999999u, |
| 1276 | 0x88888880u, 0x22818108u, 0x88888881u, 0x88888882u, 0x88888884u, 0x88888887u, 0x88888886u, 0x82218108u, 0x82281108u, 0x88888888u, 0x88888883u, 0x88888885u, 0u, 0u, 0u, 0u, |
| 1277 | }; |
| 1278 | uint8_t category = fragment < 128 ? 0 : (utf8_state_info[(fragment >> 3) & 0xf] >> ((fragment & 7) << 2)) & 0xf; |
| 1279 | codepoint = (state ? (codepoint << 6) | (fragment & 0x3fu) : (0xffu >> category) & fragment); |
| 1280 | return state == S_RJCT ? static_cast<unsigned>(S_RJCT) : static_cast<unsigned>((utf8_state_info[category + 16] >> (state << 2)) & 0xf); |
| 1281 | } |
Jim Flynn | 6217c3d | 2022-06-14 10:58:23 +0100 | [diff] [blame] | 1282 | |
Jan Eilers | 307fd34 | 2020-06-23 14:16:04 +0100 | [diff] [blame] | 1283 | GHC_INLINE bool validUtf8(const std::string& utf8String) |
| 1284 | { |
| 1285 | std::string::const_iterator iter = utf8String.begin(); |
| 1286 | unsigned utf8_state = S_STRT; |
| 1287 | std::uint32_t codepoint = 0; |
| 1288 | while (iter < utf8String.end()) { |
| 1289 | if ((utf8_state = consumeUtf8Fragment(utf8_state, static_cast<uint8_t>(*iter++), codepoint)) == S_RJCT) { |
| 1290 | return false; |
| 1291 | } |
| 1292 | } |
| 1293 | if (utf8_state) { |
| 1294 | return false; |
| 1295 | } |
| 1296 | return true; |
| 1297 | } |
| 1298 | |
| 1299 | } // namespace detail |
Jim Flynn | 6217c3d | 2022-06-14 10:58:23 +0100 | [diff] [blame] | 1300 | |
Jan Eilers | 307fd34 | 2020-06-23 14:16:04 +0100 | [diff] [blame] | 1301 | #endif |
Jim Flynn | 6217c3d | 2022-06-14 10:58:23 +0100 | [diff] [blame] | 1302 | |
Jan Eilers | 307fd34 | 2020-06-23 14:16:04 +0100 | [diff] [blame] | 1303 | namespace detail { |
| 1304 | |
| 1305 | template <class StringType, typename std::enable_if<(sizeof(typename StringType::value_type) == 1)>::type* = nullptr> |
| 1306 | inline StringType fromUtf8(const std::string& utf8String, const typename StringType::allocator_type& alloc = typename StringType::allocator_type()) |
| 1307 | { |
| 1308 | return StringType(utf8String.begin(), utf8String.end(), alloc); |
| 1309 | } |
| 1310 | |
| 1311 | template <class StringType, typename std::enable_if<(sizeof(typename StringType::value_type) == 2)>::type* = nullptr> |
| 1312 | inline StringType fromUtf8(const std::string& utf8String, const typename StringType::allocator_type& alloc = typename StringType::allocator_type()) |
| 1313 | { |
| 1314 | StringType result(alloc); |
| 1315 | result.reserve(utf8String.length()); |
| 1316 | std::string::const_iterator iter = utf8String.begin(); |
| 1317 | unsigned utf8_state = S_STRT; |
| 1318 | std::uint32_t codepoint = 0; |
| 1319 | while (iter < utf8String.end()) { |
| 1320 | if ((utf8_state = consumeUtf8Fragment(utf8_state, static_cast<uint8_t>(*iter++), codepoint)) == S_STRT) { |
| 1321 | if (codepoint <= 0xffff) { |
| 1322 | result += static_cast<typename StringType::value_type>(codepoint); |
| 1323 | } |
| 1324 | else { |
| 1325 | codepoint -= 0x10000; |
| 1326 | result += static_cast<typename StringType::value_type>((codepoint >> 10) + 0xd800); |
| 1327 | result += static_cast<typename StringType::value_type>((codepoint & 0x3ff) + 0xdc00); |
| 1328 | } |
| 1329 | codepoint = 0; |
| 1330 | } |
| 1331 | else if (utf8_state == S_RJCT) { |
| 1332 | #ifdef GHC_RAISE_UNICODE_ERRORS |
| 1333 | throw filesystem_error("Illegal byte sequence for unicode character.", utf8String, std::make_error_code(std::errc::illegal_byte_sequence)); |
| 1334 | #else |
| 1335 | result += static_cast<typename StringType::value_type>(0xfffd); |
| 1336 | utf8_state = S_STRT; |
| 1337 | codepoint = 0; |
| 1338 | #endif |
| 1339 | } |
| 1340 | } |
| 1341 | if (utf8_state) { |
| 1342 | #ifdef GHC_RAISE_UNICODE_ERRORS |
| 1343 | throw filesystem_error("Illegal byte sequence for unicode character.", utf8String, std::make_error_code(std::errc::illegal_byte_sequence)); |
| 1344 | #else |
| 1345 | result += static_cast<typename StringType::value_type>(0xfffd); |
| 1346 | #endif |
| 1347 | } |
| 1348 | return result; |
| 1349 | } |
| 1350 | |
| 1351 | template <class StringType, typename std::enable_if<(sizeof(typename StringType::value_type) == 4)>::type* = nullptr> |
| 1352 | inline StringType fromUtf8(const std::string& utf8String, const typename StringType::allocator_type& alloc = typename StringType::allocator_type()) |
| 1353 | { |
| 1354 | StringType result(alloc); |
| 1355 | result.reserve(utf8String.length()); |
| 1356 | std::string::const_iterator iter = utf8String.begin(); |
| 1357 | unsigned utf8_state = S_STRT; |
| 1358 | std::uint32_t codepoint = 0; |
| 1359 | while (iter < utf8String.end()) { |
| 1360 | if ((utf8_state = consumeUtf8Fragment(utf8_state, static_cast<uint8_t>(*iter++), codepoint)) == S_STRT) { |
| 1361 | result += static_cast<typename StringType::value_type>(codepoint); |
| 1362 | codepoint = 0; |
| 1363 | } |
| 1364 | else if (utf8_state == S_RJCT) { |
| 1365 | #ifdef GHC_RAISE_UNICODE_ERRORS |
| 1366 | throw filesystem_error("Illegal byte sequence for unicode character.", utf8String, std::make_error_code(std::errc::illegal_byte_sequence)); |
| 1367 | #else |
| 1368 | result += static_cast<typename StringType::value_type>(0xfffd); |
| 1369 | utf8_state = S_STRT; |
| 1370 | codepoint = 0; |
| 1371 | #endif |
| 1372 | } |
| 1373 | } |
| 1374 | if (utf8_state) { |
| 1375 | #ifdef GHC_RAISE_UNICODE_ERRORS |
| 1376 | throw filesystem_error("Illegal byte sequence for unicode character.", utf8String, std::make_error_code(std::errc::illegal_byte_sequence)); |
| 1377 | #else |
| 1378 | result += static_cast<typename StringType::value_type>(0xfffd); |
| 1379 | #endif |
| 1380 | } |
| 1381 | return result; |
| 1382 | } |
| 1383 | |
| 1384 | template <typename charT, typename traits, typename Alloc, typename std::enable_if<(sizeof(charT) == 1), int>::type size = 1> |
| 1385 | inline std::string toUtf8(const std::basic_string<charT, traits, Alloc>& unicodeString) |
| 1386 | { |
| 1387 | return std::string(unicodeString.begin(), unicodeString.end()); |
| 1388 | } |
| 1389 | |
| 1390 | template <typename charT, typename traits, typename Alloc, typename std::enable_if<(sizeof(charT) == 2), int>::type size = 2> |
| 1391 | inline std::string toUtf8(const std::basic_string<charT, traits, Alloc>& unicodeString) |
| 1392 | { |
| 1393 | std::string result; |
| 1394 | for (auto iter = unicodeString.begin(); iter != unicodeString.end(); ++iter) { |
| 1395 | char32_t c = *iter; |
| 1396 | if (is_surrogate(c)) { |
| 1397 | ++iter; |
| 1398 | if (iter != unicodeString.end() && is_high_surrogate(c) && is_low_surrogate(*iter)) { |
| 1399 | appendUTF8(result, (char32_t(c) << 10) + *iter - 0x35fdc00); |
| 1400 | } |
| 1401 | else { |
| 1402 | #ifdef GHC_RAISE_UNICODE_ERRORS |
| 1403 | throw filesystem_error("Illegal code point for unicode character.", result, std::make_error_code(std::errc::illegal_byte_sequence)); |
| 1404 | #else |
| 1405 | appendUTF8(result, 0xfffd); |
| 1406 | if(iter == unicodeString.end()) { |
| 1407 | break; |
| 1408 | } |
| 1409 | #endif |
| 1410 | } |
| 1411 | } |
| 1412 | else { |
| 1413 | appendUTF8(result, c); |
| 1414 | } |
| 1415 | } |
| 1416 | return result; |
| 1417 | } |
| 1418 | |
| 1419 | template <typename charT, typename traits, typename Alloc, typename std::enable_if<(sizeof(charT) == 4), int>::type size = 4> |
| 1420 | inline std::string toUtf8(const std::basic_string<charT, traits, Alloc>& unicodeString) |
| 1421 | { |
| 1422 | std::string result; |
| 1423 | for (auto c : unicodeString) { |
| 1424 | appendUTF8(result, static_cast<uint32_t>(c)); |
| 1425 | } |
| 1426 | return result; |
| 1427 | } |
| 1428 | |
| 1429 | template <typename charT> |
| 1430 | inline std::string toUtf8(const charT* unicodeString) |
| 1431 | { |
| 1432 | return toUtf8(std::basic_string<charT, std::char_traits<charT>>(unicodeString)); |
| 1433 | } |
| 1434 | |
| 1435 | } // namespace detail |
| 1436 | |
| 1437 | #ifdef GHC_EXPAND_IMPL |
| 1438 | |
| 1439 | namespace detail { |
| 1440 | |
| 1441 | GHC_INLINE bool startsWith(const std::string& what, const std::string& with) |
| 1442 | { |
| 1443 | return with.length() <= what.length() && equal(with.begin(), with.end(), what.begin()); |
| 1444 | } |
| 1445 | |
| 1446 | } // namespace detail |
| 1447 | |
| 1448 | GHC_INLINE void path::postprocess_path_with_format(path::impl_string_type& p, path::format fmt) |
| 1449 | { |
| 1450 | #ifdef GHC_RAISE_UNICODE_ERRORS |
| 1451 | if(!detail::validUtf8(p)) { |
| 1452 | path t; |
| 1453 | t._path = p; |
| 1454 | throw filesystem_error("Illegal byte sequence for unicode character.", t, std::make_error_code(std::errc::illegal_byte_sequence)); |
| 1455 | } |
| 1456 | #endif |
| 1457 | switch (fmt) { |
| 1458 | #ifndef GHC_OS_WINDOWS |
| 1459 | case path::auto_format: |
| 1460 | case path::native_format: |
| 1461 | #endif |
| 1462 | case path::generic_format: |
| 1463 | // nothing to do |
| 1464 | break; |
| 1465 | #ifdef GHC_OS_WINDOWS |
| 1466 | case path::auto_format: |
| 1467 | case path::native_format: |
| 1468 | if (detail::startsWith(p, std::string("\\\\?\\"))) { |
| 1469 | // remove Windows long filename marker |
| 1470 | p.erase(0, 4); |
| 1471 | if (detail::startsWith(p, std::string("UNC\\"))) { |
| 1472 | p.erase(0, 2); |
| 1473 | p[0] = '\\'; |
| 1474 | } |
| 1475 | } |
| 1476 | for (auto& c : p) { |
| 1477 | if (c == '\\') { |
| 1478 | c = '/'; |
| 1479 | } |
| 1480 | } |
| 1481 | break; |
| 1482 | #endif |
| 1483 | } |
| 1484 | if (p.length() > 2 && p[0] == '/' && p[1] == '/' && p[2] != '/') { |
| 1485 | std::string::iterator new_end = std::unique(p.begin() + 2, p.end(), [](path::value_type lhs, path::value_type rhs) { return lhs == rhs && lhs == '/'; }); |
| 1486 | p.erase(new_end, p.end()); |
| 1487 | } |
| 1488 | else { |
| 1489 | std::string::iterator new_end = std::unique(p.begin(), p.end(), [](path::value_type lhs, path::value_type rhs) { return lhs == rhs && lhs == '/'; }); |
| 1490 | p.erase(new_end, p.end()); |
| 1491 | } |
| 1492 | } |
| 1493 | |
| 1494 | #endif // GHC_EXPAND_IMPL |
| 1495 | |
| 1496 | template <class Source, typename> |
| 1497 | inline path::path(const Source& source, format fmt) |
| 1498 | : _path(detail::toUtf8(source)) |
| 1499 | { |
| 1500 | postprocess_path_with_format(_path, fmt); |
| 1501 | } |
| 1502 | template <> |
| 1503 | inline path::path(const std::wstring& source, format fmt) |
| 1504 | { |
| 1505 | _path = detail::toUtf8(source); |
| 1506 | postprocess_path_with_format(_path, fmt); |
| 1507 | } |
| 1508 | template <> |
| 1509 | inline path::path(const std::u16string& source, format fmt) |
| 1510 | { |
| 1511 | _path = detail::toUtf8(source); |
| 1512 | postprocess_path_with_format(_path, fmt); |
| 1513 | } |
| 1514 | template <> |
| 1515 | inline path::path(const std::u32string& source, format fmt) |
| 1516 | { |
| 1517 | _path = detail::toUtf8(source); |
| 1518 | postprocess_path_with_format(_path, fmt); |
| 1519 | } |
| 1520 | |
| 1521 | #ifdef __cpp_lib_string_view |
| 1522 | template <> |
| 1523 | inline path::path(const std::string_view& source, format fmt) |
| 1524 | { |
| 1525 | _path = detail::toUtf8(std::string(source)); |
| 1526 | postprocess_path_with_format(_path, fmt); |
| 1527 | } |
| 1528 | #endif |
| 1529 | |
| 1530 | template <class Source, typename> |
| 1531 | inline path u8path(const Source& source) |
| 1532 | { |
| 1533 | return path(source); |
| 1534 | } |
| 1535 | template <class InputIterator> |
| 1536 | inline path u8path(InputIterator first, InputIterator last) |
| 1537 | { |
| 1538 | return path(first, last); |
| 1539 | } |
| 1540 | |
| 1541 | template <class InputIterator> |
| 1542 | inline path::path(InputIterator first, InputIterator last, format fmt) |
| 1543 | : path(std::basic_string<typename std::iterator_traits<InputIterator>::value_type>(first, last), fmt) |
| 1544 | { |
| 1545 | // delegated |
| 1546 | } |
| 1547 | |
| 1548 | #ifdef GHC_EXPAND_IMPL |
| 1549 | |
| 1550 | namespace detail { |
| 1551 | |
| 1552 | GHC_INLINE bool equals_simple_insensitive(const char* str1, const char* str2) |
| 1553 | { |
| 1554 | #ifdef GHC_OS_WINDOWS |
| 1555 | #ifdef __GNUC__ |
| 1556 | while (::tolower((unsigned char)*str1) == ::tolower((unsigned char)*str2++)) { |
| 1557 | if (*str1++ == 0) |
| 1558 | return true; |
| 1559 | } |
| 1560 | return false; |
| 1561 | #else |
| 1562 | return 0 == ::_stricmp(str1, str2); |
| 1563 | #endif |
| 1564 | #else |
| 1565 | return 0 == ::strcasecmp(str1, str2); |
| 1566 | #endif |
| 1567 | } |
| 1568 | |
| 1569 | GHC_INLINE const char* strerror_adapter(char* gnu, char*) |
| 1570 | { |
| 1571 | return gnu; |
| 1572 | } |
| 1573 | |
| 1574 | GHC_INLINE const char* strerror_adapter(int posix, char* buffer) |
| 1575 | { |
| 1576 | if(posix) { |
| 1577 | return "Error in strerror_r!"; |
| 1578 | } |
| 1579 | return buffer; |
| 1580 | } |
| 1581 | |
| 1582 | template <typename ErrorNumber> |
| 1583 | GHC_INLINE std::string systemErrorText(ErrorNumber code = 0) |
| 1584 | { |
| 1585 | #if defined(GHC_OS_WINDOWS) |
| 1586 | LPVOID msgBuf; |
| 1587 | DWORD dw = code ? static_cast<DWORD>(code) : ::GetLastError(); |
| 1588 | FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dw, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPWSTR)&msgBuf, 0, NULL); |
| 1589 | std::string msg = toUtf8(std::wstring((LPWSTR)msgBuf)); |
| 1590 | LocalFree(msgBuf); |
| 1591 | return msg; |
| 1592 | #else |
| 1593 | char buffer[512]; |
| 1594 | return strerror_adapter(strerror_r(code ? code : errno, buffer, sizeof(buffer)), buffer); |
| 1595 | #endif |
| 1596 | } |
| 1597 | |
| 1598 | #ifdef GHC_OS_WINDOWS |
| 1599 | using CreateSymbolicLinkW_fp = BOOLEAN(WINAPI*)(LPCWSTR, LPCWSTR, DWORD); |
| 1600 | using CreateHardLinkW_fp = BOOLEAN(WINAPI*)(LPCWSTR, LPCWSTR, LPSECURITY_ATTRIBUTES); |
| 1601 | |
| 1602 | GHC_INLINE void create_symlink(const path& target_name, const path& new_symlink, bool to_directory, std::error_code& ec) |
| 1603 | { |
| 1604 | std::error_code tec; |
| 1605 | auto fs = status(target_name, tec); |
| 1606 | if ((fs.type() == file_type::directory && !to_directory) || (fs.type() == file_type::regular && to_directory)) { |
| 1607 | ec = detail::make_error_code(detail::portable_error::not_supported); |
| 1608 | return; |
| 1609 | } |
| 1610 | #if defined(__GNUC__) && __GNUC__ >= 8 |
| 1611 | #pragma GCC diagnostic push |
| 1612 | #pragma GCC diagnostic ignored "-Wcast-function-type" |
| 1613 | #endif |
| 1614 | static CreateSymbolicLinkW_fp api_call = reinterpret_cast<CreateSymbolicLinkW_fp>(GetProcAddress(GetModuleHandleW(L"kernel32.dll"), "CreateSymbolicLinkW")); |
| 1615 | #if defined(__GNUC__) && __GNUC__ >= 8 |
| 1616 | #pragma GCC diagnostic pop |
| 1617 | #endif |
| 1618 | if (api_call) { |
| 1619 | 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) { |
| 1620 | auto result = ::GetLastError(); |
| 1621 | 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) { |
| 1622 | return; |
| 1623 | } |
| 1624 | ec = detail::make_system_error(result); |
| 1625 | } |
| 1626 | } |
| 1627 | else { |
| 1628 | ec = detail::make_system_error(ERROR_NOT_SUPPORTED); |
| 1629 | } |
| 1630 | } |
| 1631 | |
| 1632 | GHC_INLINE void create_hardlink(const path& target_name, const path& new_hardlink, std::error_code& ec) |
| 1633 | { |
| 1634 | #if defined(__GNUC__) && __GNUC__ >= 8 |
| 1635 | #pragma GCC diagnostic push |
| 1636 | #pragma GCC diagnostic ignored "-Wcast-function-type" |
| 1637 | #endif |
| 1638 | static CreateHardLinkW_fp api_call = reinterpret_cast<CreateHardLinkW_fp>(GetProcAddress(GetModuleHandleW(L"kernel32.dll"), "CreateHardLinkW")); |
| 1639 | #if defined(__GNUC__) && __GNUC__ >= 8 |
| 1640 | #pragma GCC diagnostic pop |
| 1641 | #endif |
| 1642 | if (api_call) { |
| 1643 | if (api_call(detail::fromUtf8<std::wstring>(new_hardlink.u8string()).c_str(), detail::fromUtf8<std::wstring>(target_name.u8string()).c_str(), NULL) == 0) { |
| 1644 | ec = detail::make_system_error(); |
| 1645 | } |
| 1646 | } |
| 1647 | else { |
| 1648 | ec = detail::make_system_error(ERROR_NOT_SUPPORTED); |
| 1649 | } |
| 1650 | } |
| 1651 | #else |
| 1652 | GHC_INLINE void create_symlink(const path& target_name, const path& new_symlink, bool, std::error_code& ec) |
| 1653 | { |
| 1654 | if (::symlink(target_name.c_str(), new_symlink.c_str()) != 0) { |
| 1655 | ec = detail::make_system_error(); |
| 1656 | } |
| 1657 | } |
| 1658 | |
| 1659 | GHC_INLINE void create_hardlink(const path& target_name, const path& new_hardlink, std::error_code& ec) |
| 1660 | { |
| 1661 | if (::link(target_name.c_str(), new_hardlink.c_str()) != 0) { |
| 1662 | ec = detail::make_system_error(); |
| 1663 | } |
| 1664 | } |
| 1665 | #endif |
| 1666 | |
| 1667 | template <typename T> |
| 1668 | GHC_INLINE file_status file_status_from_st_mode(T mode) |
| 1669 | { |
| 1670 | #ifdef GHC_OS_WINDOWS |
| 1671 | file_type ft = file_type::unknown; |
| 1672 | if ((mode & _S_IFDIR) == _S_IFDIR) { |
| 1673 | ft = file_type::directory; |
| 1674 | } |
| 1675 | else if ((mode & _S_IFREG) == _S_IFREG) { |
| 1676 | ft = file_type::regular; |
| 1677 | } |
| 1678 | else if ((mode & _S_IFCHR) == _S_IFCHR) { |
| 1679 | ft = file_type::character; |
| 1680 | } |
| 1681 | perms prms = static_cast<perms>(mode & 0xfff); |
| 1682 | return file_status(ft, prms); |
| 1683 | #else |
| 1684 | file_type ft = file_type::unknown; |
| 1685 | if (S_ISDIR(mode)) { |
| 1686 | ft = file_type::directory; |
| 1687 | } |
| 1688 | else if (S_ISREG(mode)) { |
| 1689 | ft = file_type::regular; |
| 1690 | } |
| 1691 | else if (S_ISCHR(mode)) { |
| 1692 | ft = file_type::character; |
| 1693 | } |
| 1694 | else if (S_ISBLK(mode)) { |
| 1695 | ft = file_type::block; |
| 1696 | } |
| 1697 | else if (S_ISFIFO(mode)) { |
| 1698 | ft = file_type::fifo; |
| 1699 | } |
| 1700 | else if (S_ISLNK(mode)) { |
| 1701 | ft = file_type::symlink; |
| 1702 | } |
| 1703 | else if (S_ISSOCK(mode)) { |
| 1704 | ft = file_type::socket; |
| 1705 | } |
| 1706 | perms prms = static_cast<perms>(mode & 0xfff); |
| 1707 | return file_status(ft, prms); |
| 1708 | #endif |
| 1709 | } |
| 1710 | |
| 1711 | GHC_INLINE path resolveSymlink(const path& p, std::error_code& ec) |
| 1712 | { |
| 1713 | #ifdef GHC_OS_WINDOWS |
| 1714 | #ifndef REPARSE_DATA_BUFFER_HEADER_SIZE |
| 1715 | typedef struct _REPARSE_DATA_BUFFER |
| 1716 | { |
| 1717 | ULONG ReparseTag; |
| 1718 | USHORT ReparseDataLength; |
| 1719 | USHORT Reserved; |
| 1720 | union |
| 1721 | { |
| 1722 | struct |
| 1723 | { |
| 1724 | USHORT SubstituteNameOffset; |
| 1725 | USHORT SubstituteNameLength; |
| 1726 | USHORT PrintNameOffset; |
| 1727 | USHORT PrintNameLength; |
| 1728 | ULONG Flags; |
| 1729 | WCHAR PathBuffer[1]; |
| 1730 | } SymbolicLinkReparseBuffer; |
| 1731 | struct |
| 1732 | { |
| 1733 | USHORT SubstituteNameOffset; |
| 1734 | USHORT SubstituteNameLength; |
| 1735 | USHORT PrintNameOffset; |
| 1736 | USHORT PrintNameLength; |
| 1737 | WCHAR PathBuffer[1]; |
| 1738 | } MountPointReparseBuffer; |
| 1739 | struct |
| 1740 | { |
| 1741 | UCHAR DataBuffer[1]; |
| 1742 | } GenericReparseBuffer; |
| 1743 | } DUMMYUNIONNAME; |
| 1744 | } REPARSE_DATA_BUFFER; |
| 1745 | #ifndef MAXIMUM_REPARSE_DATA_BUFFER_SIZE |
| 1746 | #define MAXIMUM_REPARSE_DATA_BUFFER_SIZE (16 * 1024) |
| 1747 | #endif |
| 1748 | #endif |
| 1749 | |
| 1750 | std::shared_ptr<void> file(CreateFileW(p.wstring().c_str(), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS, 0), CloseHandle); |
| 1751 | if (file.get() == INVALID_HANDLE_VALUE) { |
| 1752 | ec = detail::make_system_error(); |
| 1753 | return path(); |
| 1754 | } |
| 1755 | |
| 1756 | std::shared_ptr<REPARSE_DATA_BUFFER> reparseData((REPARSE_DATA_BUFFER*)std::calloc(1, MAXIMUM_REPARSE_DATA_BUFFER_SIZE), std::free); |
| 1757 | ULONG bufferUsed; |
| 1758 | path result; |
| 1759 | if (DeviceIoControl(file.get(), FSCTL_GET_REPARSE_POINT, 0, 0, reparseData.get(), MAXIMUM_REPARSE_DATA_BUFFER_SIZE, &bufferUsed, 0)) { |
| 1760 | if (IsReparseTagMicrosoft(reparseData->ReparseTag)) { |
| 1761 | switch (reparseData->ReparseTag) { |
| 1762 | case IO_REPARSE_TAG_SYMLINK: |
| 1763 | result = std::wstring(&reparseData->SymbolicLinkReparseBuffer.PathBuffer[reparseData->SymbolicLinkReparseBuffer.PrintNameOffset / sizeof(WCHAR)], reparseData->SymbolicLinkReparseBuffer.PrintNameLength / sizeof(WCHAR)); |
| 1764 | break; |
| 1765 | case IO_REPARSE_TAG_MOUNT_POINT: |
| 1766 | result = std::wstring(&reparseData->MountPointReparseBuffer.PathBuffer[reparseData->MountPointReparseBuffer.PrintNameOffset / sizeof(WCHAR)], reparseData->MountPointReparseBuffer.PrintNameLength / sizeof(WCHAR)); |
| 1767 | break; |
| 1768 | default: |
| 1769 | break; |
| 1770 | } |
| 1771 | } |
| 1772 | } |
| 1773 | else { |
| 1774 | ec = detail::make_system_error(); |
| 1775 | } |
| 1776 | return result; |
| 1777 | #else |
| 1778 | size_t bufferSize = 256; |
| 1779 | while (true) { |
| 1780 | std::vector<char> buffer(bufferSize, static_cast<char>(0)); |
| 1781 | auto rc = ::readlink(p.c_str(), buffer.data(), buffer.size()); |
| 1782 | if (rc < 0) { |
| 1783 | ec = detail::make_system_error(); |
| 1784 | return path(); |
| 1785 | } |
| 1786 | else if (rc < static_cast<int>(bufferSize)) { |
| 1787 | return path(std::string(buffer.data(), static_cast<std::string::size_type>(rc))); |
| 1788 | } |
| 1789 | bufferSize *= 2; |
| 1790 | } |
| 1791 | return path(); |
| 1792 | #endif |
| 1793 | } |
| 1794 | |
| 1795 | #ifdef GHC_OS_WINDOWS |
| 1796 | GHC_INLINE time_t timeFromFILETIME(const FILETIME& ft) |
| 1797 | { |
| 1798 | ULARGE_INTEGER ull; |
| 1799 | ull.LowPart = ft.dwLowDateTime; |
| 1800 | ull.HighPart = ft.dwHighDateTime; |
| 1801 | return static_cast<time_t>(ull.QuadPart / 10000000ULL - 11644473600ULL); |
| 1802 | } |
| 1803 | |
| 1804 | GHC_INLINE void timeToFILETIME(time_t t, FILETIME& ft) |
| 1805 | { |
| 1806 | LONGLONG ll; |
| 1807 | ll = Int32x32To64(t, 10000000) + 116444736000000000; |
| 1808 | ft.dwLowDateTime = static_cast<DWORD>(ll); |
| 1809 | ft.dwHighDateTime = static_cast<DWORD>(ll >> 32); |
| 1810 | } |
| 1811 | |
| 1812 | template <typename INFO> |
| 1813 | GHC_INLINE uintmax_t hard_links_from_INFO(const INFO* info) |
| 1814 | { |
| 1815 | return static_cast<uintmax_t>(-1); |
| 1816 | } |
| 1817 | |
| 1818 | template <> |
| 1819 | GHC_INLINE uintmax_t hard_links_from_INFO<BY_HANDLE_FILE_INFORMATION>(const BY_HANDLE_FILE_INFORMATION* info) |
| 1820 | { |
| 1821 | return info->nNumberOfLinks; |
| 1822 | } |
| 1823 | |
| 1824 | template <typename INFO> |
| 1825 | GHC_INLINE file_status status_from_INFO(const path& p, const INFO* info, std::error_code&, uintmax_t* sz = nullptr, time_t* lwt = nullptr) noexcept |
| 1826 | { |
| 1827 | file_type ft = file_type::unknown; |
| 1828 | if ((info->dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)) { |
| 1829 | ft = file_type::symlink; |
| 1830 | } |
| 1831 | else { |
| 1832 | if ((info->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) { |
| 1833 | ft = file_type::directory; |
| 1834 | } |
| 1835 | else { |
| 1836 | ft = file_type::regular; |
| 1837 | } |
| 1838 | } |
| 1839 | perms prms = perms::owner_read | perms::group_read | perms::others_read; |
| 1840 | if (!(info->dwFileAttributes & FILE_ATTRIBUTE_READONLY)) { |
| 1841 | prms = prms | perms::owner_write | perms::group_write | perms::others_write; |
| 1842 | } |
| 1843 | std::string ext = p.extension().generic_string(); |
| 1844 | if (equals_simple_insensitive(ext.c_str(), ".exe") || equals_simple_insensitive(ext.c_str(), ".cmd") || equals_simple_insensitive(ext.c_str(), ".bat") || equals_simple_insensitive(ext.c_str(), ".com")) { |
| 1845 | prms = prms | perms::owner_exec | perms::group_exec | perms::others_exec; |
| 1846 | } |
| 1847 | if (sz) { |
| 1848 | *sz = static_cast<uintmax_t>(info->nFileSizeHigh) << (sizeof(info->nFileSizeHigh) * 8) | info->nFileSizeLow; |
| 1849 | } |
| 1850 | if (lwt) { |
| 1851 | *lwt = detail::timeFromFILETIME(info->ftLastWriteTime); |
| 1852 | } |
| 1853 | return file_status(ft, prms); |
| 1854 | } |
| 1855 | |
| 1856 | #endif |
| 1857 | |
| 1858 | GHC_INLINE bool is_not_found_error(std::error_code& ec) |
| 1859 | { |
| 1860 | #ifdef GHC_OS_WINDOWS |
| 1861 | return ec.value() == ERROR_FILE_NOT_FOUND || ec.value() == ERROR_PATH_NOT_FOUND || ec.value() == ERROR_INVALID_NAME; |
| 1862 | #else |
| 1863 | return ec.value() == ENOENT || ec.value() == ENOTDIR; |
| 1864 | #endif |
| 1865 | } |
| 1866 | |
| 1867 | 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 |
| 1868 | { |
| 1869 | #ifdef GHC_OS_WINDOWS |
| 1870 | file_status fs; |
| 1871 | WIN32_FILE_ATTRIBUTE_DATA attr; |
| 1872 | if (!GetFileAttributesExW(detail::fromUtf8<std::wstring>(p.u8string()).c_str(), GetFileExInfoStandard, &attr)) { |
| 1873 | ec = detail::make_system_error(); |
| 1874 | } |
| 1875 | else { |
| 1876 | ec.clear(); |
| 1877 | fs = detail::status_from_INFO(p, &attr, ec, sz, lwt); |
| 1878 | if (nhl) { |
| 1879 | *nhl = 0; |
| 1880 | } |
| 1881 | if (attr.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) { |
| 1882 | fs.type(file_type::symlink); |
| 1883 | } |
| 1884 | } |
| 1885 | if (detail::is_not_found_error(ec)) { |
| 1886 | return file_status(file_type::not_found); |
| 1887 | } |
| 1888 | return ec ? file_status(file_type::none) : fs; |
| 1889 | #else |
| 1890 | (void)sz; |
| 1891 | (void)nhl; |
| 1892 | (void)lwt; |
| 1893 | struct ::stat fs; |
| 1894 | auto result = ::lstat(p.c_str(), &fs); |
| 1895 | if (result == 0) { |
| 1896 | ec.clear(); |
| 1897 | file_status f_s = detail::file_status_from_st_mode(fs.st_mode); |
| 1898 | return f_s; |
| 1899 | } |
| 1900 | ec = detail::make_system_error(); |
| 1901 | if (detail::is_not_found_error(ec)) { |
| 1902 | return file_status(file_type::not_found, perms::unknown); |
| 1903 | } |
| 1904 | return file_status(file_type::none); |
| 1905 | #endif |
| 1906 | } |
| 1907 | |
| 1908 | 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 |
| 1909 | { |
| 1910 | ec.clear(); |
| 1911 | #ifdef GHC_OS_WINDOWS |
| 1912 | if (recurse_count > 16) { |
| 1913 | ec = detail::make_system_error(0x2A9 /*ERROR_STOPPED_ON_SYMLINK*/); |
| 1914 | return file_status(file_type::unknown); |
| 1915 | } |
| 1916 | WIN32_FILE_ATTRIBUTE_DATA attr; |
| 1917 | if (!::GetFileAttributesExW(p.wstring().c_str(), GetFileExInfoStandard, &attr)) { |
| 1918 | ec = detail::make_system_error(); |
| 1919 | } |
| 1920 | else if (attr.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) { |
| 1921 | path target = resolveSymlink(p, ec); |
| 1922 | file_status result; |
| 1923 | if (!ec && !target.empty()) { |
| 1924 | if (sls) { |
| 1925 | *sls = status_from_INFO(p, &attr, ec); |
| 1926 | } |
| 1927 | return detail::status_ex(target, ec, nullptr, sz, nhl, lwt, recurse_count + 1); |
| 1928 | } |
| 1929 | return file_status(file_type::unknown); |
| 1930 | } |
| 1931 | if (ec) { |
| 1932 | if (detail::is_not_found_error(ec)) { |
| 1933 | return file_status(file_type::not_found); |
| 1934 | } |
| 1935 | return file_status(file_type::none); |
| 1936 | } |
| 1937 | if (nhl) { |
| 1938 | *nhl = 0; |
| 1939 | } |
| 1940 | return detail::status_from_INFO(p, &attr, ec, sz, lwt); |
| 1941 | #else |
| 1942 | (void)recurse_count; |
| 1943 | struct ::stat st; |
| 1944 | auto result = ::lstat(p.c_str(), &st); |
| 1945 | if (result == 0) { |
| 1946 | ec.clear(); |
| 1947 | file_status fs = detail::file_status_from_st_mode(st.st_mode); |
| 1948 | if (fs.type() == file_type::symlink) { |
| 1949 | result = ::stat(p.c_str(), &st); |
| 1950 | if (result == 0) { |
| 1951 | if (sls) { |
| 1952 | *sls = fs; |
| 1953 | } |
| 1954 | fs = detail::file_status_from_st_mode(st.st_mode); |
| 1955 | } |
| 1956 | } |
| 1957 | if (sz) { |
| 1958 | *sz = static_cast<uintmax_t>(st.st_size); |
| 1959 | } |
| 1960 | if (nhl) { |
| 1961 | *nhl = st.st_nlink; |
| 1962 | } |
| 1963 | if (lwt) { |
| 1964 | *lwt = st.st_mtime; |
| 1965 | } |
| 1966 | return fs; |
| 1967 | } |
| 1968 | else { |
| 1969 | ec = detail::make_system_error(); |
| 1970 | if (detail::is_not_found_error(ec)) { |
| 1971 | return file_status(file_type::not_found, perms::unknown); |
| 1972 | } |
| 1973 | return file_status(file_type::none); |
| 1974 | } |
| 1975 | #endif |
| 1976 | } |
| 1977 | |
| 1978 | } // namespace detail |
| 1979 | |
| 1980 | GHC_INLINE u8arguments::u8arguments(int& argc, char**& argv) |
| 1981 | : _argc(argc) |
| 1982 | , _argv(argv) |
| 1983 | , _refargc(argc) |
| 1984 | , _refargv(argv) |
| 1985 | , _isvalid(false) |
| 1986 | { |
| 1987 | #ifdef GHC_OS_WINDOWS |
| 1988 | LPWSTR* p; |
| 1989 | p = ::CommandLineToArgvW(::GetCommandLineW(), &argc); |
| 1990 | _args.reserve(static_cast<size_t>(argc)); |
| 1991 | _argp.reserve(static_cast<size_t>(argc)); |
| 1992 | for (size_t i = 0; i < static_cast<size_t>(argc); ++i) { |
| 1993 | _args.push_back(detail::toUtf8(std::wstring(p[i]))); |
| 1994 | _argp.push_back((char*)_args[i].data()); |
| 1995 | } |
| 1996 | argv = _argp.data(); |
| 1997 | ::LocalFree(p); |
| 1998 | _isvalid = true; |
| 1999 | #else |
| 2000 | std::setlocale(LC_ALL, ""); |
| 2001 | #if defined(__ANDROID__) && __ANDROID_API__ < 26 |
| 2002 | _isvalid = true; |
| 2003 | #else |
| 2004 | if (detail::equals_simple_insensitive(::nl_langinfo(CODESET), "UTF-8")) { |
| 2005 | _isvalid = true; |
| 2006 | } |
| 2007 | #endif |
| 2008 | #endif |
| 2009 | } |
| 2010 | |
| 2011 | //----------------------------------------------------------------------------- |
| 2012 | // 30.10.8.4.1 constructors and destructor |
| 2013 | |
| 2014 | GHC_INLINE path::path() noexcept {} |
| 2015 | |
| 2016 | GHC_INLINE path::path(const path& p) |
| 2017 | : _path(p._path) |
| 2018 | { |
| 2019 | } |
| 2020 | |
| 2021 | GHC_INLINE path::path(path&& p) noexcept |
| 2022 | : _path(std::move(p._path)) |
| 2023 | { |
| 2024 | } |
| 2025 | |
| 2026 | GHC_INLINE path::path(string_type&& source, format fmt) |
| 2027 | #ifdef GHC_USE_WCHAR_T |
| 2028 | : _path(detail::toUtf8(source)) |
| 2029 | #else |
| 2030 | : _path(std::move(source)) |
| 2031 | #endif |
| 2032 | { |
| 2033 | postprocess_path_with_format(_path, fmt); |
| 2034 | } |
| 2035 | |
| 2036 | #endif // GHC_EXPAND_IMPL |
| 2037 | |
| 2038 | template <class Source, typename> |
| 2039 | inline path::path(const Source& source, const std::locale& loc, format fmt) |
| 2040 | : path(source, fmt) |
| 2041 | { |
| 2042 | std::string locName = loc.name(); |
| 2043 | if (!(locName.length() >= 5 && (locName.substr(locName.length() - 5) == "UTF-8" || locName.substr(locName.length() - 5) == "utf-8"))) { |
| 2044 | throw filesystem_error("This implementation only supports UTF-8 locales!", path(_path), detail::make_error_code(detail::portable_error::not_supported)); |
| 2045 | } |
| 2046 | } |
| 2047 | |
| 2048 | template <class InputIterator> |
| 2049 | inline path::path(InputIterator first, InputIterator last, const std::locale& loc, format fmt) |
| 2050 | : path(std::basic_string<typename std::iterator_traits<InputIterator>::value_type>(first, last), fmt) |
| 2051 | { |
| 2052 | std::string locName = loc.name(); |
| 2053 | if (!(locName.length() >= 5 && (locName.substr(locName.length() - 5) == "UTF-8" || locName.substr(locName.length() - 5) == "utf-8"))) { |
| 2054 | throw filesystem_error("This implementation only supports UTF-8 locales!", path(_path), detail::make_error_code(detail::portable_error::not_supported)); |
| 2055 | } |
| 2056 | } |
| 2057 | |
| 2058 | #ifdef GHC_EXPAND_IMPL |
| 2059 | |
| 2060 | GHC_INLINE path::~path() {} |
| 2061 | |
| 2062 | //----------------------------------------------------------------------------- |
| 2063 | // 30.10.8.4.2 assignments |
| 2064 | |
| 2065 | GHC_INLINE path& path::operator=(const path& p) |
| 2066 | { |
| 2067 | _path = p._path; |
| 2068 | return *this; |
| 2069 | } |
| 2070 | |
| 2071 | GHC_INLINE path& path::operator=(path&& p) noexcept |
| 2072 | { |
| 2073 | _path = std::move(p._path); |
| 2074 | return *this; |
| 2075 | } |
| 2076 | |
| 2077 | GHC_INLINE path& path::operator=(path::string_type&& source) |
| 2078 | { |
| 2079 | return assign(source); |
| 2080 | } |
| 2081 | |
| 2082 | GHC_INLINE path& path::assign(path::string_type&& source) |
| 2083 | { |
| 2084 | #ifdef GHC_USE_WCHAR_T |
| 2085 | _path = detail::toUtf8(source); |
| 2086 | #else |
| 2087 | _path = std::move(source); |
| 2088 | #endif |
| 2089 | postprocess_path_with_format(_path, native_format); |
| 2090 | return *this; |
| 2091 | } |
| 2092 | |
| 2093 | #endif // GHC_EXPAND_IMPL |
| 2094 | |
| 2095 | template <class Source> |
| 2096 | inline path& path::operator=(const Source& source) |
| 2097 | { |
| 2098 | return assign(source); |
| 2099 | } |
| 2100 | |
| 2101 | template <class Source> |
| 2102 | inline path& path::assign(const Source& source) |
| 2103 | { |
| 2104 | _path.assign(detail::toUtf8(source)); |
| 2105 | postprocess_path_with_format(_path, native_format); |
| 2106 | return *this; |
| 2107 | } |
| 2108 | |
| 2109 | template <> |
| 2110 | inline path& path::assign<path>(const path& source) |
| 2111 | { |
| 2112 | _path = source._path; |
| 2113 | return *this; |
| 2114 | } |
| 2115 | |
| 2116 | template <class InputIterator> |
| 2117 | inline path& path::assign(InputIterator first, InputIterator last) |
| 2118 | { |
| 2119 | _path.assign(first, last); |
| 2120 | postprocess_path_with_format(_path, native_format); |
| 2121 | return *this; |
| 2122 | } |
| 2123 | |
| 2124 | #ifdef GHC_EXPAND_IMPL |
| 2125 | |
| 2126 | //----------------------------------------------------------------------------- |
| 2127 | // 30.10.8.4.3 appends |
| 2128 | |
| 2129 | GHC_INLINE path& path::operator/=(const path& p) |
| 2130 | { |
| 2131 | if (p.empty()) { |
| 2132 | // was: if ((!has_root_directory() && is_absolute()) || has_filename()) |
| 2133 | if (!_path.empty() && _path[_path.length() - 1] != '/' && _path[_path.length() - 1] != ':') { |
| 2134 | _path += '/'; |
| 2135 | } |
| 2136 | return *this; |
| 2137 | } |
| 2138 | if ((p.is_absolute() && (_path != root_name() || p._path != "/")) || (p.has_root_name() && p.root_name() != root_name())) { |
| 2139 | assign(p); |
| 2140 | return *this; |
| 2141 | } |
| 2142 | if (p.has_root_directory()) { |
| 2143 | assign(root_name()); |
| 2144 | } |
| 2145 | else if ((!has_root_directory() && is_absolute()) || has_filename()) { |
| 2146 | _path += '/'; |
| 2147 | } |
| 2148 | auto iter = p.begin(); |
| 2149 | bool first = true; |
| 2150 | if (p.has_root_name()) { |
| 2151 | ++iter; |
| 2152 | } |
| 2153 | while (iter != p.end()) { |
| 2154 | if (!first && !(!_path.empty() && _path[_path.length() - 1] == '/')) { |
| 2155 | _path += '/'; |
| 2156 | } |
| 2157 | first = false; |
| 2158 | _path += (*iter++).generic_string(); |
| 2159 | } |
| 2160 | return *this; |
| 2161 | } |
| 2162 | |
| 2163 | GHC_INLINE void path::append_name(const char* name) |
| 2164 | { |
| 2165 | if (_path.empty()) { |
| 2166 | this->operator/=(path(name)); |
| 2167 | } |
| 2168 | else { |
| 2169 | if (_path.back() != path::generic_separator) { |
| 2170 | _path.push_back(path::generic_separator); |
| 2171 | } |
| 2172 | _path += name; |
| 2173 | } |
| 2174 | } |
| 2175 | |
| 2176 | #endif // GHC_EXPAND_IMPL |
| 2177 | |
| 2178 | template <class Source> |
| 2179 | inline path& path::operator/=(const Source& source) |
| 2180 | { |
| 2181 | return append(source); |
| 2182 | } |
| 2183 | |
| 2184 | template <class Source> |
| 2185 | inline path& path::append(const Source& source) |
| 2186 | { |
| 2187 | return this->operator/=(path(detail::toUtf8(source))); |
| 2188 | } |
| 2189 | |
| 2190 | template <> |
| 2191 | inline path& path::append<path>(const path& p) |
| 2192 | { |
| 2193 | return this->operator/=(p); |
| 2194 | } |
| 2195 | |
| 2196 | template <class InputIterator> |
| 2197 | inline path& path::append(InputIterator first, InputIterator last) |
| 2198 | { |
| 2199 | std::basic_string<typename std::iterator_traits<InputIterator>::value_type> part(first, last); |
| 2200 | return append(part); |
| 2201 | } |
| 2202 | |
| 2203 | #ifdef GHC_EXPAND_IMPL |
| 2204 | |
| 2205 | //----------------------------------------------------------------------------- |
| 2206 | // 30.10.8.4.4 concatenation |
| 2207 | |
| 2208 | GHC_INLINE path& path::operator+=(const path& x) |
| 2209 | { |
| 2210 | return concat(x._path); |
| 2211 | } |
| 2212 | |
| 2213 | GHC_INLINE path& path::operator+=(const string_type& x) |
| 2214 | { |
| 2215 | return concat(x); |
| 2216 | } |
| 2217 | |
| 2218 | #ifdef __cpp_lib_string_view |
| 2219 | GHC_INLINE path& path::operator+=(std::basic_string_view<value_type> x) |
| 2220 | { |
| 2221 | return concat(x); |
| 2222 | } |
| 2223 | #endif |
| 2224 | |
| 2225 | GHC_INLINE path& path::operator+=(const value_type* x) |
| 2226 | { |
| 2227 | return concat(string_type(x)); |
| 2228 | } |
| 2229 | |
| 2230 | GHC_INLINE path& path::operator+=(value_type x) |
| 2231 | { |
| 2232 | #ifdef GHC_OS_WINDOWS |
| 2233 | if (x == '\\') { |
| 2234 | x = generic_separator; |
| 2235 | } |
| 2236 | #endif |
| 2237 | if (_path.empty() || _path.back() != generic_separator) { |
| 2238 | #ifdef GHC_USE_WCHAR_T |
| 2239 | _path += detail::toUtf8(string_type(1, x)); |
| 2240 | #else |
| 2241 | _path += x; |
| 2242 | #endif |
| 2243 | } |
| 2244 | return *this; |
| 2245 | } |
| 2246 | |
| 2247 | #endif // GHC_EXPAND_IMPL |
| 2248 | |
| 2249 | template <class Source> |
| 2250 | inline path::path_from_string<Source>& path::operator+=(const Source& x) |
| 2251 | { |
| 2252 | return concat(x); |
| 2253 | } |
| 2254 | |
| 2255 | template <class EcharT> |
| 2256 | inline path::path_type_EcharT<EcharT>& path::operator+=(EcharT x) |
| 2257 | { |
| 2258 | std::basic_string<EcharT> part(1, x); |
| 2259 | concat(detail::toUtf8(part)); |
| 2260 | return *this; |
| 2261 | } |
| 2262 | |
| 2263 | template <class Source> |
| 2264 | inline path& path::concat(const Source& x) |
| 2265 | { |
| 2266 | path p(x); |
| 2267 | postprocess_path_with_format(p._path, native_format); |
| 2268 | _path += p._path; |
| 2269 | return *this; |
| 2270 | } |
| 2271 | template <class InputIterator> |
| 2272 | inline path& path::concat(InputIterator first, InputIterator last) |
| 2273 | { |
| 2274 | _path.append(first, last); |
| 2275 | postprocess_path_with_format(_path, native_format); |
| 2276 | return *this; |
| 2277 | } |
| 2278 | |
| 2279 | #ifdef GHC_EXPAND_IMPL |
| 2280 | |
| 2281 | //----------------------------------------------------------------------------- |
| 2282 | // 30.10.8.4.5 modifiers |
| 2283 | GHC_INLINE void path::clear() noexcept |
| 2284 | { |
| 2285 | _path.clear(); |
| 2286 | } |
| 2287 | |
| 2288 | GHC_INLINE path& path::make_preferred() |
| 2289 | { |
| 2290 | // as this filesystem implementation only uses generic_format |
| 2291 | // internally, this must be a no-op |
| 2292 | return *this; |
| 2293 | } |
| 2294 | |
| 2295 | GHC_INLINE path& path::remove_filename() |
| 2296 | { |
| 2297 | if (has_filename()) { |
| 2298 | _path.erase(_path.size() - filename()._path.size()); |
| 2299 | } |
| 2300 | return *this; |
| 2301 | } |
| 2302 | |
| 2303 | GHC_INLINE path& path::replace_filename(const path& replacement) |
| 2304 | { |
| 2305 | remove_filename(); |
| 2306 | return append(replacement); |
| 2307 | } |
| 2308 | |
| 2309 | GHC_INLINE path& path::replace_extension(const path& replacement) |
| 2310 | { |
| 2311 | if (has_extension()) { |
| 2312 | _path.erase(_path.size() - extension()._path.size()); |
| 2313 | } |
| 2314 | if (!replacement.empty() && replacement._path[0] != '.') { |
| 2315 | _path += '.'; |
| 2316 | } |
| 2317 | return concat(replacement); |
| 2318 | } |
| 2319 | |
| 2320 | GHC_INLINE void path::swap(path& rhs) noexcept |
| 2321 | { |
| 2322 | _path.swap(rhs._path); |
| 2323 | } |
| 2324 | |
| 2325 | //----------------------------------------------------------------------------- |
| 2326 | // 30.10.8.4.6, native format observers |
| 2327 | #ifdef GHC_OS_WINDOWS |
| 2328 | GHC_INLINE path::impl_string_type path::native_impl() const |
| 2329 | { |
| 2330 | impl_string_type result; |
| 2331 | if (is_absolute() && _path.length() > MAX_PATH - 10) { |
| 2332 | // expand long Windows filenames with marker |
| 2333 | if (has_root_name() && _path[0] == '/') { |
| 2334 | result = "\\\\?\\UNC" + _path.substr(1); |
| 2335 | } |
| 2336 | else { |
| 2337 | result = "\\\\?\\" + _path; |
| 2338 | } |
| 2339 | } |
| 2340 | else { |
| 2341 | result = _path; |
| 2342 | } |
| 2343 | /*if (has_root_name() && root_name()._path[0] == '/') { |
| 2344 | return _path; |
| 2345 | }*/ |
| 2346 | for (auto& c : result) { |
| 2347 | if (c == '/') { |
| 2348 | c = '\\'; |
| 2349 | } |
| 2350 | } |
| 2351 | return result; |
| 2352 | } |
| 2353 | #else |
| 2354 | GHC_INLINE const path::impl_string_type& path::native_impl() const |
| 2355 | { |
| 2356 | return _path; |
| 2357 | } |
| 2358 | #endif |
| 2359 | |
| 2360 | GHC_INLINE const path::string_type& path::native() const |
| 2361 | { |
| 2362 | #ifdef GHC_OS_WINDOWS |
| 2363 | #ifdef GHC_USE_WCHAR_T |
| 2364 | _native_cache = detail::fromUtf8<string_type>(native_impl()); |
| 2365 | #else |
| 2366 | _native_cache = native_impl(); |
| 2367 | #endif |
| 2368 | return _native_cache; |
| 2369 | #else |
| 2370 | return _path; |
| 2371 | #endif |
| 2372 | } |
| 2373 | |
| 2374 | GHC_INLINE const path::value_type* path::c_str() const |
| 2375 | { |
| 2376 | return native().c_str(); |
| 2377 | } |
| 2378 | |
| 2379 | GHC_INLINE path::operator path::string_type() const |
| 2380 | { |
| 2381 | return native(); |
| 2382 | } |
| 2383 | |
| 2384 | #endif // GHC_EXPAND_IMPL |
| 2385 | |
| 2386 | template <class EcharT, class traits, class Allocator> |
| 2387 | inline std::basic_string<EcharT, traits, Allocator> path::string(const Allocator& a) const |
| 2388 | { |
| 2389 | return detail::fromUtf8<std::basic_string<EcharT, traits, Allocator>>(native_impl(), a); |
| 2390 | } |
| 2391 | |
| 2392 | #ifdef GHC_EXPAND_IMPL |
| 2393 | |
| 2394 | GHC_INLINE std::string path::string() const |
| 2395 | { |
| 2396 | return native_impl(); |
| 2397 | } |
| 2398 | |
| 2399 | GHC_INLINE std::wstring path::wstring() const |
| 2400 | { |
| 2401 | #ifdef GHC_USE_WCHAR_T |
| 2402 | return native(); |
| 2403 | #else |
| 2404 | return detail::fromUtf8<std::wstring>(native()); |
| 2405 | #endif |
| 2406 | } |
| 2407 | |
| 2408 | GHC_INLINE std::string path::u8string() const |
| 2409 | { |
| 2410 | return native_impl(); |
| 2411 | } |
| 2412 | |
| 2413 | GHC_INLINE std::u16string path::u16string() const |
| 2414 | { |
| 2415 | return detail::fromUtf8<std::u16string>(native_impl()); |
| 2416 | } |
| 2417 | |
| 2418 | GHC_INLINE std::u32string path::u32string() const |
| 2419 | { |
| 2420 | return detail::fromUtf8<std::u32string>(native_impl()); |
| 2421 | } |
| 2422 | |
| 2423 | #endif // GHC_EXPAND_IMPL |
| 2424 | |
| 2425 | //----------------------------------------------------------------------------- |
| 2426 | // 30.10.8.4.7, generic format observers |
| 2427 | template <class EcharT, class traits, class Allocator> |
| 2428 | inline std::basic_string<EcharT, traits, Allocator> path::generic_string(const Allocator& a) const |
| 2429 | { |
| 2430 | return detail::fromUtf8<std::basic_string<EcharT, traits, Allocator>>(_path, a); |
| 2431 | } |
| 2432 | |
| 2433 | #ifdef GHC_EXPAND_IMPL |
| 2434 | |
| 2435 | GHC_INLINE const std::string& path::generic_string() const |
| 2436 | { |
| 2437 | return _path; |
| 2438 | } |
| 2439 | |
| 2440 | GHC_INLINE std::wstring path::generic_wstring() const |
| 2441 | { |
| 2442 | return detail::fromUtf8<std::wstring>(_path); |
| 2443 | } |
| 2444 | |
| 2445 | GHC_INLINE std::string path::generic_u8string() const |
| 2446 | { |
| 2447 | return _path; |
| 2448 | } |
| 2449 | |
| 2450 | GHC_INLINE std::u16string path::generic_u16string() const |
| 2451 | { |
| 2452 | return detail::fromUtf8<std::u16string>(_path); |
| 2453 | } |
| 2454 | |
| 2455 | GHC_INLINE std::u32string path::generic_u32string() const |
| 2456 | { |
| 2457 | return detail::fromUtf8<std::u32string>(_path); |
| 2458 | } |
| 2459 | |
| 2460 | //----------------------------------------------------------------------------- |
| 2461 | // 30.10.8.4.8, compare |
| 2462 | GHC_INLINE int path::compare(const path& p) const noexcept |
| 2463 | { |
| 2464 | return native().compare(p.native()); |
| 2465 | } |
| 2466 | |
| 2467 | GHC_INLINE int path::compare(const string_type& s) const |
| 2468 | { |
| 2469 | return native().compare(path(s).native()); |
| 2470 | } |
| 2471 | |
| 2472 | #ifdef __cpp_lib_string_view |
| 2473 | GHC_INLINE int path::compare(std::basic_string_view<value_type> s) const |
| 2474 | { |
| 2475 | return native().compare(path(s).native()); |
| 2476 | } |
| 2477 | #endif |
| 2478 | |
| 2479 | GHC_INLINE int path::compare(const value_type* s) const |
| 2480 | { |
| 2481 | return native().compare(path(s).native()); |
| 2482 | } |
| 2483 | |
| 2484 | //----------------------------------------------------------------------------- |
| 2485 | // 30.10.8.4.9, decomposition |
| 2486 | GHC_INLINE path path::root_name() const |
| 2487 | { |
| 2488 | #ifdef GHC_OS_WINDOWS |
| 2489 | if (_path.length() >= 2 && std::toupper(static_cast<unsigned char>(_path[0])) >= 'A' && std::toupper(static_cast<unsigned char>(_path[0])) <= 'Z' && _path[1] == ':') { |
| 2490 | return path(_path.substr(0, 2)); |
| 2491 | } |
| 2492 | #endif |
| 2493 | if (_path.length() > 2 && _path[0] == '/' && _path[1] == '/' && _path[2] != '/' && std::isprint(_path[2])) { |
| 2494 | impl_string_type::size_type pos = _path.find_first_of("/\\", 3); |
| 2495 | if (pos == impl_string_type::npos) { |
| 2496 | return path(_path); |
| 2497 | } |
| 2498 | else { |
| 2499 | return path(_path.substr(0, pos)); |
| 2500 | } |
| 2501 | } |
| 2502 | return path(); |
| 2503 | } |
| 2504 | |
| 2505 | GHC_INLINE path path::root_directory() const |
| 2506 | { |
| 2507 | path root = root_name(); |
| 2508 | if (_path.length() > root._path.length() && _path[root._path.length()] == '/') { |
| 2509 | return path("/"); |
| 2510 | } |
| 2511 | return path(); |
| 2512 | } |
| 2513 | |
| 2514 | GHC_INLINE path path::root_path() const |
| 2515 | { |
| 2516 | return root_name().generic_string() + root_directory().generic_string(); |
| 2517 | } |
| 2518 | |
| 2519 | GHC_INLINE path path::relative_path() const |
| 2520 | { |
| 2521 | std::string root = root_path()._path; |
| 2522 | return path(_path.substr((std::min)(root.length(), _path.length())), generic_format); |
| 2523 | } |
| 2524 | |
| 2525 | GHC_INLINE path path::parent_path() const |
| 2526 | { |
| 2527 | if (has_relative_path()) { |
| 2528 | if (empty() || begin() == --end()) { |
| 2529 | return path(); |
| 2530 | } |
| 2531 | else { |
| 2532 | path pp; |
| 2533 | for (string_type s : input_iterator_range<iterator>(begin(), --end())) { |
| 2534 | if (s == "/") { |
| 2535 | // don't use append to join a path- |
| 2536 | pp += s; |
| 2537 | } |
| 2538 | else { |
| 2539 | pp /= s; |
| 2540 | } |
| 2541 | } |
| 2542 | return pp; |
| 2543 | } |
| 2544 | } |
| 2545 | else { |
| 2546 | return *this; |
| 2547 | } |
| 2548 | } |
| 2549 | |
| 2550 | GHC_INLINE path path::filename() const |
| 2551 | { |
| 2552 | return relative_path().empty() ? path() : path(*--end()); |
| 2553 | } |
| 2554 | |
| 2555 | GHC_INLINE path path::stem() const |
| 2556 | { |
| 2557 | impl_string_type fn = filename().string(); |
| 2558 | if (fn != "." && fn != "..") { |
| 2559 | impl_string_type::size_type n = fn.rfind('.'); |
| 2560 | if (n != impl_string_type::npos && n != 0) { |
| 2561 | return path{fn.substr(0, n)}; |
| 2562 | } |
| 2563 | } |
| 2564 | return path{fn}; |
| 2565 | } |
| 2566 | |
| 2567 | GHC_INLINE path path::extension() const |
| 2568 | { |
| 2569 | impl_string_type fn = filename().string(); |
| 2570 | impl_string_type::size_type pos = fn.find_last_of('.'); |
| 2571 | if (pos == std::string::npos || pos == 0) { |
| 2572 | return ""; |
| 2573 | } |
| 2574 | return fn.substr(pos); |
| 2575 | } |
| 2576 | |
| 2577 | //----------------------------------------------------------------------------- |
| 2578 | // 30.10.8.4.10, query |
| 2579 | GHC_INLINE bool path::empty() const noexcept |
| 2580 | { |
| 2581 | return _path.empty(); |
| 2582 | } |
| 2583 | |
| 2584 | GHC_INLINE bool path::has_root_name() const |
| 2585 | { |
| 2586 | return !root_name().empty(); |
| 2587 | } |
| 2588 | |
| 2589 | GHC_INLINE bool path::has_root_directory() const |
| 2590 | { |
| 2591 | return !root_directory().empty(); |
| 2592 | } |
| 2593 | |
| 2594 | GHC_INLINE bool path::has_root_path() const |
| 2595 | { |
| 2596 | return !root_path().empty(); |
| 2597 | } |
| 2598 | |
| 2599 | GHC_INLINE bool path::has_relative_path() const |
| 2600 | { |
| 2601 | return !relative_path().empty(); |
| 2602 | } |
| 2603 | |
| 2604 | GHC_INLINE bool path::has_parent_path() const |
| 2605 | { |
| 2606 | return !parent_path().empty(); |
| 2607 | } |
| 2608 | |
| 2609 | GHC_INLINE bool path::has_filename() const |
| 2610 | { |
| 2611 | return !filename().empty(); |
| 2612 | } |
| 2613 | |
| 2614 | GHC_INLINE bool path::has_stem() const |
| 2615 | { |
| 2616 | return !stem().empty(); |
| 2617 | } |
| 2618 | |
| 2619 | GHC_INLINE bool path::has_extension() const |
| 2620 | { |
| 2621 | return !extension().empty(); |
| 2622 | } |
| 2623 | |
| 2624 | GHC_INLINE bool path::is_absolute() const |
| 2625 | { |
| 2626 | #ifdef GHC_OS_WINDOWS |
| 2627 | return has_root_name() && has_root_directory(); |
| 2628 | #else |
| 2629 | return has_root_directory(); |
| 2630 | #endif |
| 2631 | } |
| 2632 | |
| 2633 | GHC_INLINE bool path::is_relative() const |
| 2634 | { |
| 2635 | return !is_absolute(); |
| 2636 | } |
| 2637 | |
| 2638 | //----------------------------------------------------------------------------- |
| 2639 | // 30.10.8.4.11, generation |
| 2640 | GHC_INLINE path path::lexically_normal() const |
| 2641 | { |
| 2642 | path dest; |
| 2643 | bool lastDotDot = false; |
| 2644 | for (string_type s : *this) { |
| 2645 | if (s == ".") { |
| 2646 | dest /= ""; |
| 2647 | continue; |
| 2648 | } |
| 2649 | else if (s == ".." && !dest.empty()) { |
| 2650 | auto root = root_path(); |
| 2651 | if (dest == root) { |
| 2652 | continue; |
| 2653 | } |
| 2654 | else if (*(--dest.end()) != "..") { |
| 2655 | if (dest._path.back() == generic_separator) { |
| 2656 | dest._path.pop_back(); |
| 2657 | } |
| 2658 | dest.remove_filename(); |
| 2659 | continue; |
| 2660 | } |
| 2661 | } |
| 2662 | if (!(s.empty() && lastDotDot)) { |
| 2663 | dest /= s; |
| 2664 | } |
| 2665 | lastDotDot = s == ".."; |
| 2666 | } |
| 2667 | if (dest.empty()) { |
| 2668 | dest = "."; |
| 2669 | } |
| 2670 | return dest; |
| 2671 | } |
| 2672 | |
| 2673 | GHC_INLINE path path::lexically_relative(const path& base) const |
| 2674 | { |
| 2675 | if (root_name() != base.root_name() || is_absolute() != base.is_absolute() || (!has_root_directory() && base.has_root_directory())) { |
| 2676 | return path(); |
| 2677 | } |
| 2678 | const_iterator a = begin(), b = base.begin(); |
| 2679 | while (a != end() && b != base.end() && *a == *b) { |
| 2680 | ++a; |
| 2681 | ++b; |
| 2682 | } |
| 2683 | if (a == end() && b == base.end()) { |
| 2684 | return path("."); |
| 2685 | } |
| 2686 | int count = 0; |
| 2687 | for (const auto& element : input_iterator_range<const_iterator>(b, base.end())) { |
| 2688 | if (element != "." && element != "" && element != "..") { |
| 2689 | ++count; |
| 2690 | } |
| 2691 | else if (element == "..") { |
| 2692 | --count; |
| 2693 | } |
| 2694 | } |
| 2695 | if (count < 0) { |
| 2696 | return path(); |
| 2697 | } |
| 2698 | path result; |
| 2699 | for (int i = 0; i < count; ++i) { |
| 2700 | result /= ".."; |
| 2701 | } |
| 2702 | for (const auto& element : input_iterator_range<const_iterator>(a, end())) { |
| 2703 | result /= element; |
| 2704 | } |
| 2705 | return result; |
| 2706 | } |
| 2707 | |
| 2708 | GHC_INLINE path path::lexically_proximate(const path& base) const |
| 2709 | { |
| 2710 | path result = lexically_relative(base); |
| 2711 | return result.empty() ? *this : result; |
| 2712 | } |
| 2713 | |
| 2714 | //----------------------------------------------------------------------------- |
| 2715 | // 30.10.8.5, iterators |
| 2716 | GHC_INLINE path::iterator::iterator() {} |
| 2717 | |
| 2718 | GHC_INLINE path::iterator::iterator(const path::impl_string_type::const_iterator& first, const path::impl_string_type::const_iterator& last, const path::impl_string_type::const_iterator& pos) |
| 2719 | : _first(first) |
| 2720 | , _last(last) |
| 2721 | , _iter(pos) |
| 2722 | { |
| 2723 | updateCurrent(); |
| 2724 | // find the position of a potential root directory slash |
| 2725 | #ifdef GHC_OS_WINDOWS |
| 2726 | if (_last - _first >= 3 && std::toupper(static_cast<unsigned char>(*first)) >= 'A' && std::toupper(static_cast<unsigned char>(*first)) <= 'Z' && *(first + 1) == ':' && *(first + 2) == '/') { |
| 2727 | _root = _first + 2; |
| 2728 | } |
| 2729 | else |
| 2730 | #endif |
| 2731 | { |
| 2732 | if (_first != _last && *_first == '/') { |
| 2733 | if (_last - _first >= 2 && *(_first + 1) == '/' && !(_last - _first >= 3 && *(_first + 2) == '/')) { |
| 2734 | _root = increment(_first); |
| 2735 | } |
| 2736 | else { |
| 2737 | _root = _first; |
| 2738 | } |
| 2739 | } |
| 2740 | else { |
| 2741 | _root = _last; |
| 2742 | } |
| 2743 | } |
| 2744 | } |
| 2745 | |
| 2746 | GHC_INLINE path::impl_string_type::const_iterator path::iterator::increment(const path::impl_string_type::const_iterator& pos) const |
| 2747 | { |
| 2748 | path::impl_string_type::const_iterator i = pos; |
| 2749 | bool fromStart = i == _first; |
| 2750 | if (i != _last) { |
| 2751 | // we can only sit on a slash if it is a network name or a root |
| 2752 | if (*i++ == '/') { |
| 2753 | if (i != _last && *i == '/') { |
| 2754 | if (fromStart && !(i + 1 != _last && *(i + 1) == '/')) { |
| 2755 | // leadind double slashes detected, treat this and the |
| 2756 | // following until a slash as one unit |
| 2757 | i = std::find(++i, _last, '/'); |
| 2758 | } |
| 2759 | else { |
| 2760 | // skip redundant slashes |
| 2761 | while (i != _last && *i == '/') { |
| 2762 | ++i; |
| 2763 | } |
| 2764 | } |
| 2765 | } |
| 2766 | } |
| 2767 | else { |
| 2768 | if (fromStart && i != _last && *i == ':') { |
| 2769 | ++i; |
| 2770 | } |
| 2771 | else { |
| 2772 | i = std::find(i, _last, '/'); |
| 2773 | } |
| 2774 | } |
| 2775 | } |
| 2776 | return i; |
| 2777 | } |
| 2778 | |
| 2779 | GHC_INLINE path::impl_string_type::const_iterator path::iterator::decrement(const path::impl_string_type::const_iterator& pos) const |
| 2780 | { |
| 2781 | path::impl_string_type::const_iterator i = pos; |
| 2782 | if (i != _first) { |
| 2783 | --i; |
| 2784 | // if this is now the root slash or the trailing slash, we are done, |
| 2785 | // else check for network name |
| 2786 | if (i != _root && (pos != _last || *i != '/')) { |
| 2787 | #ifdef GHC_OS_WINDOWS |
| 2788 | static const std::string seps = "/:"; |
| 2789 | 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(); |
| 2790 | if (i > _first && *i == ':') { |
| 2791 | i++; |
| 2792 | } |
| 2793 | #else |
| 2794 | i = std::find(std::reverse_iterator<path::impl_string_type::const_iterator>(i), std::reverse_iterator<path::impl_string_type::const_iterator>(_first), '/').base(); |
| 2795 | #endif |
| 2796 | // Now we have to check if this is a network name |
| 2797 | if (i - _first == 2 && *_first == '/' && *(_first + 1) == '/') { |
| 2798 | i -= 2; |
| 2799 | } |
| 2800 | } |
| 2801 | } |
| 2802 | return i; |
| 2803 | } |
| 2804 | |
| 2805 | GHC_INLINE void path::iterator::updateCurrent() |
| 2806 | { |
| 2807 | if (_iter != _first && _iter != _last && (*_iter == '/' && _iter != _root) && (_iter + 1 == _last)) { |
| 2808 | _current = ""; |
| 2809 | } |
| 2810 | else { |
| 2811 | _current.assign(_iter, increment(_iter)); |
| 2812 | if (_current.generic_string().size() > 1 && _current.generic_string()[0] == '/' && _current.generic_string()[_current.generic_string().size() - 1] == '/') { |
| 2813 | // shrink successive slashes to one |
| 2814 | _current = "/"; |
| 2815 | } |
| 2816 | } |
| 2817 | } |
| 2818 | |
| 2819 | GHC_INLINE path::iterator& path::iterator::operator++() |
| 2820 | { |
| 2821 | _iter = increment(_iter); |
| 2822 | while (_iter != _last && // we didn't reach the end |
| 2823 | _iter != _root && // this is not a root position |
| 2824 | *_iter == '/' && // we are on a slash |
| 2825 | (_iter + 1) != _last // the slash is not the last char |
| 2826 | ) { |
| 2827 | ++_iter; |
| 2828 | } |
| 2829 | updateCurrent(); |
| 2830 | return *this; |
| 2831 | } |
| 2832 | |
| 2833 | GHC_INLINE path::iterator path::iterator::operator++(int) |
| 2834 | { |
| 2835 | path::iterator i{*this}; |
| 2836 | ++(*this); |
| 2837 | return i; |
| 2838 | } |
| 2839 | |
| 2840 | GHC_INLINE path::iterator& path::iterator::operator--() |
| 2841 | { |
| 2842 | _iter = decrement(_iter); |
| 2843 | updateCurrent(); |
| 2844 | return *this; |
| 2845 | } |
| 2846 | |
| 2847 | GHC_INLINE path::iterator path::iterator::operator--(int) |
| 2848 | { |
| 2849 | auto i = *this; |
| 2850 | --(*this); |
| 2851 | return i; |
| 2852 | } |
| 2853 | |
| 2854 | GHC_INLINE bool path::iterator::operator==(const path::iterator& other) const |
| 2855 | { |
| 2856 | return _iter == other._iter; |
| 2857 | } |
| 2858 | |
| 2859 | GHC_INLINE bool path::iterator::operator!=(const path::iterator& other) const |
| 2860 | { |
| 2861 | return _iter != other._iter; |
| 2862 | } |
| 2863 | |
| 2864 | GHC_INLINE path::iterator::reference path::iterator::operator*() const |
| 2865 | { |
| 2866 | return _current; |
| 2867 | } |
| 2868 | |
| 2869 | GHC_INLINE path::iterator::pointer path::iterator::operator->() const |
| 2870 | { |
| 2871 | return &_current; |
| 2872 | } |
| 2873 | |
| 2874 | GHC_INLINE path::iterator path::begin() const |
| 2875 | { |
| 2876 | return iterator(_path.begin(), _path.end(), _path.begin()); |
| 2877 | } |
| 2878 | |
| 2879 | GHC_INLINE path::iterator path::end() const |
| 2880 | { |
| 2881 | return iterator(_path.begin(), _path.end(), _path.end()); |
| 2882 | } |
| 2883 | |
| 2884 | //----------------------------------------------------------------------------- |
| 2885 | // 30.10.8.6, path non-member functions |
| 2886 | GHC_INLINE void swap(path& lhs, path& rhs) noexcept |
| 2887 | { |
| 2888 | swap(lhs._path, rhs._path); |
| 2889 | } |
| 2890 | |
| 2891 | GHC_INLINE size_t hash_value(const path& p) noexcept |
| 2892 | { |
| 2893 | return std::hash<std::string>()(p.generic_string()); |
| 2894 | } |
| 2895 | |
| 2896 | GHC_INLINE bool operator==(const path& lhs, const path& rhs) noexcept |
| 2897 | { |
| 2898 | return lhs.generic_string() == rhs.generic_string(); |
| 2899 | } |
| 2900 | |
| 2901 | GHC_INLINE bool operator!=(const path& lhs, const path& rhs) noexcept |
| 2902 | { |
| 2903 | return lhs.generic_string() != rhs.generic_string(); |
| 2904 | } |
| 2905 | |
| 2906 | GHC_INLINE bool operator<(const path& lhs, const path& rhs) noexcept |
| 2907 | { |
| 2908 | return lhs.generic_string() < rhs.generic_string(); |
| 2909 | } |
| 2910 | |
| 2911 | GHC_INLINE bool operator<=(const path& lhs, const path& rhs) noexcept |
| 2912 | { |
| 2913 | return lhs.generic_string() <= rhs.generic_string(); |
| 2914 | } |
| 2915 | |
| 2916 | GHC_INLINE bool operator>(const path& lhs, const path& rhs) noexcept |
| 2917 | { |
| 2918 | return lhs.generic_string() > rhs.generic_string(); |
| 2919 | } |
| 2920 | |
| 2921 | GHC_INLINE bool operator>=(const path& lhs, const path& rhs) noexcept |
| 2922 | { |
| 2923 | return lhs.generic_string() >= rhs.generic_string(); |
| 2924 | } |
| 2925 | |
| 2926 | GHC_INLINE path operator/(const path& lhs, const path& rhs) |
| 2927 | { |
| 2928 | path result(lhs); |
| 2929 | result /= rhs; |
| 2930 | return result; |
| 2931 | } |
| 2932 | |
| 2933 | #endif // GHC_EXPAND_IMPL |
| 2934 | |
| 2935 | //----------------------------------------------------------------------------- |
| 2936 | // 30.10.8.6.1 path inserter and extractor |
| 2937 | template <class charT, class traits> |
| 2938 | inline std::basic_ostream<charT, traits>& operator<<(std::basic_ostream<charT, traits>& os, const path& p) |
| 2939 | { |
| 2940 | os << "\""; |
| 2941 | auto ps = p.string<charT, traits>(); |
| 2942 | for (auto c : ps) { |
| 2943 | if (c == '"' || c == '\\') { |
| 2944 | os << '\\'; |
| 2945 | } |
| 2946 | os << c; |
| 2947 | } |
| 2948 | os << "\""; |
| 2949 | return os; |
| 2950 | } |
| 2951 | |
| 2952 | template <class charT, class traits> |
| 2953 | inline std::basic_istream<charT, traits>& operator>>(std::basic_istream<charT, traits>& is, path& p) |
| 2954 | { |
| 2955 | std::basic_string<charT, traits> tmp; |
| 2956 | charT c; |
| 2957 | is >> c; |
| 2958 | if (c == '"') { |
| 2959 | auto sf = is.flags(); |
| 2960 | is >> std::noskipws; |
| 2961 | while (is) { |
| 2962 | auto c2 = is.get(); |
| 2963 | if (is) { |
| 2964 | if (c2 == '\\') { |
| 2965 | c2 = is.get(); |
| 2966 | if (is) { |
| 2967 | tmp += static_cast<charT>(c2); |
| 2968 | } |
| 2969 | } |
| 2970 | else if (c2 == '"') { |
| 2971 | break; |
| 2972 | } |
| 2973 | else { |
| 2974 | tmp += static_cast<charT>(c2); |
| 2975 | } |
| 2976 | } |
| 2977 | } |
| 2978 | if ((sf & std::ios_base::skipws) == std::ios_base::skipws) { |
| 2979 | is >> std::skipws; |
| 2980 | } |
| 2981 | p = path(tmp); |
| 2982 | } |
| 2983 | else { |
| 2984 | is >> tmp; |
| 2985 | p = path(static_cast<charT>(c) + tmp); |
| 2986 | } |
| 2987 | return is; |
| 2988 | } |
| 2989 | |
| 2990 | #ifdef GHC_EXPAND_IMPL |
| 2991 | |
| 2992 | //----------------------------------------------------------------------------- |
| 2993 | // 30.10.9 Class filesystem_error |
| 2994 | GHC_INLINE filesystem_error::filesystem_error(const std::string& what_arg, std::error_code ec) |
| 2995 | : std::system_error(ec, what_arg) |
| 2996 | , _what_arg(what_arg) |
| 2997 | , _ec(ec) |
| 2998 | { |
| 2999 | } |
| 3000 | |
| 3001 | GHC_INLINE filesystem_error::filesystem_error(const std::string& what_arg, const path& p1, std::error_code ec) |
| 3002 | : std::system_error(ec, what_arg) |
| 3003 | , _what_arg(what_arg) |
| 3004 | , _ec(ec) |
| 3005 | , _p1(p1) |
| 3006 | { |
| 3007 | if (!_p1.empty()) { |
| 3008 | _what_arg += ": '" + _p1.u8string() + "'"; |
| 3009 | } |
| 3010 | } |
| 3011 | |
| 3012 | GHC_INLINE filesystem_error::filesystem_error(const std::string& what_arg, const path& p1, const path& p2, std::error_code ec) |
| 3013 | : std::system_error(ec, what_arg) |
| 3014 | , _what_arg(what_arg) |
| 3015 | , _ec(ec) |
| 3016 | , _p1(p1) |
| 3017 | , _p2(p2) |
| 3018 | { |
| 3019 | if (!_p1.empty()) { |
| 3020 | _what_arg += ": '" + _p1.u8string() + "'"; |
| 3021 | } |
| 3022 | if (!_p2.empty()) { |
| 3023 | _what_arg += ", '" + _p2.u8string() + "'"; |
| 3024 | } |
| 3025 | } |
| 3026 | |
| 3027 | GHC_INLINE const path& filesystem_error::path1() const noexcept |
| 3028 | { |
| 3029 | return _p1; |
| 3030 | } |
| 3031 | |
| 3032 | GHC_INLINE const path& filesystem_error::path2() const noexcept |
| 3033 | { |
| 3034 | return _p2; |
| 3035 | } |
| 3036 | |
| 3037 | GHC_INLINE const char* filesystem_error::what() const noexcept |
| 3038 | { |
| 3039 | return _what_arg.c_str(); |
| 3040 | } |
| 3041 | |
| 3042 | //----------------------------------------------------------------------------- |
| 3043 | // 30.10.15, filesystem operations |
| 3044 | GHC_INLINE path absolute(const path& p) |
| 3045 | { |
| 3046 | std::error_code ec; |
| 3047 | path result = absolute(p, ec); |
| 3048 | if (ec) { |
| 3049 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 3050 | } |
| 3051 | return result; |
| 3052 | } |
| 3053 | |
| 3054 | GHC_INLINE path absolute(const path& p, std::error_code& ec) |
| 3055 | { |
| 3056 | ec.clear(); |
| 3057 | #ifdef GHC_OS_WINDOWS |
| 3058 | if (p.empty()) { |
| 3059 | return absolute(current_path(ec), ec) / ""; |
| 3060 | } |
| 3061 | ULONG size = ::GetFullPathNameW(p.wstring().c_str(), 0, 0, 0); |
| 3062 | if (size) { |
| 3063 | std::vector<wchar_t> buf(size, 0); |
| 3064 | ULONG s2 = GetFullPathNameW(p.wstring().c_str(), size, buf.data(), nullptr); |
| 3065 | if (s2 && s2 < size) { |
| 3066 | path result = path(std::wstring(buf.data(), s2)); |
| 3067 | if (p.filename() == ".") { |
| 3068 | result /= "."; |
| 3069 | } |
| 3070 | return result; |
| 3071 | } |
| 3072 | } |
| 3073 | ec = detail::make_system_error(); |
| 3074 | return path(); |
| 3075 | #else |
| 3076 | path base = current_path(ec); |
| 3077 | if (!ec) { |
| 3078 | if (p.empty()) { |
| 3079 | return base / p; |
| 3080 | } |
| 3081 | if (p.has_root_name()) { |
| 3082 | if (p.has_root_directory()) { |
| 3083 | return p; |
| 3084 | } |
| 3085 | else { |
| 3086 | return p.root_name() / base.root_directory() / base.relative_path() / p.relative_path(); |
| 3087 | } |
| 3088 | } |
| 3089 | else { |
| 3090 | if (p.has_root_directory()) { |
| 3091 | return base.root_name() / p; |
| 3092 | } |
| 3093 | else { |
| 3094 | return base / p; |
| 3095 | } |
| 3096 | } |
| 3097 | } |
| 3098 | ec = detail::make_system_error(); |
| 3099 | return path(); |
| 3100 | #endif |
| 3101 | } |
| 3102 | |
| 3103 | GHC_INLINE path canonical(const path& p) |
| 3104 | { |
| 3105 | std::error_code ec; |
| 3106 | auto result = canonical(p, ec); |
| 3107 | if (ec) { |
| 3108 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 3109 | } |
| 3110 | return result; |
| 3111 | } |
| 3112 | |
| 3113 | GHC_INLINE path canonical(const path& p, std::error_code& ec) |
| 3114 | { |
| 3115 | if (p.empty()) { |
| 3116 | ec = detail::make_error_code(detail::portable_error::not_found); |
| 3117 | return path(); |
| 3118 | } |
| 3119 | path work = p.is_absolute() ? p : absolute(p, ec); |
| 3120 | path root = work.root_path(); |
| 3121 | path result; |
| 3122 | |
| 3123 | auto fs = status(work, ec); |
| 3124 | if (ec) { |
| 3125 | return path(); |
| 3126 | } |
| 3127 | if (fs.type() == file_type::not_found) { |
| 3128 | ec = detail::make_error_code(detail::portable_error::not_found); |
| 3129 | return path(); |
| 3130 | } |
| 3131 | bool redo; |
| 3132 | do { |
| 3133 | redo = false; |
| 3134 | result.clear(); |
| 3135 | for (auto pe : work) { |
| 3136 | if (pe.empty() || pe == ".") { |
| 3137 | continue; |
| 3138 | } |
| 3139 | else if (pe == "..") { |
| 3140 | result = result.parent_path(); |
| 3141 | continue; |
| 3142 | } |
| 3143 | else if ((result / pe).string().length() <= root.string().length()) { |
| 3144 | result /= pe; |
| 3145 | continue; |
| 3146 | } |
| 3147 | auto sls = symlink_status(result / pe, ec); |
| 3148 | if (ec) { |
| 3149 | return path(); |
| 3150 | } |
| 3151 | if (is_symlink(sls)) { |
| 3152 | redo = true; |
| 3153 | auto target = read_symlink(result / pe, ec); |
| 3154 | if (ec) { |
| 3155 | return path(); |
| 3156 | } |
| 3157 | if (target.is_absolute()) { |
| 3158 | result = target; |
| 3159 | continue; |
| 3160 | } |
| 3161 | else { |
| 3162 | result /= target; |
| 3163 | continue; |
| 3164 | } |
| 3165 | } |
| 3166 | else { |
| 3167 | result /= pe; |
| 3168 | } |
| 3169 | } |
| 3170 | work = result; |
| 3171 | } while (redo); |
| 3172 | ec.clear(); |
| 3173 | return result; |
| 3174 | } |
| 3175 | |
| 3176 | GHC_INLINE void copy(const path& from, const path& to) |
| 3177 | { |
| 3178 | copy(from, to, copy_options::none); |
| 3179 | } |
| 3180 | |
| 3181 | GHC_INLINE void copy(const path& from, const path& to, std::error_code& ec) noexcept |
| 3182 | { |
| 3183 | copy(from, to, copy_options::none, ec); |
| 3184 | } |
| 3185 | |
| 3186 | GHC_INLINE void copy(const path& from, const path& to, copy_options options) |
| 3187 | { |
| 3188 | std::error_code ec; |
| 3189 | copy(from, to, options, ec); |
| 3190 | if (ec) { |
| 3191 | throw filesystem_error(detail::systemErrorText(ec.value()), from, to, ec); |
| 3192 | } |
| 3193 | } |
| 3194 | |
| 3195 | GHC_INLINE void copy(const path& from, const path& to, copy_options options, std::error_code& ec) noexcept |
| 3196 | { |
| 3197 | std::error_code tec; |
| 3198 | file_status fs_from, fs_to; |
| 3199 | ec.clear(); |
| 3200 | if ((options & (copy_options::skip_symlinks | copy_options::copy_symlinks | copy_options::create_symlinks)) != copy_options::none) { |
| 3201 | fs_from = symlink_status(from, ec); |
| 3202 | } |
| 3203 | else { |
| 3204 | fs_from = status(from, ec); |
| 3205 | } |
| 3206 | if (!exists(fs_from)) { |
| 3207 | if (!ec) { |
| 3208 | ec = detail::make_error_code(detail::portable_error::not_found); |
| 3209 | } |
| 3210 | return; |
| 3211 | } |
| 3212 | if ((options & (copy_options::skip_symlinks | copy_options::create_symlinks)) != copy_options::none) { |
| 3213 | fs_to = symlink_status(to, tec); |
| 3214 | } |
| 3215 | else { |
| 3216 | fs_to = status(to, tec); |
| 3217 | } |
| 3218 | 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))) { |
| 3219 | ec = detail::make_error_code(detail::portable_error::invalid_argument); |
| 3220 | } |
| 3221 | else if (is_symlink(fs_from)) { |
| 3222 | if ((options & copy_options::skip_symlinks) == copy_options::none) { |
| 3223 | if (!exists(fs_to) && (options & copy_options::copy_symlinks) != copy_options::none) { |
| 3224 | copy_symlink(from, to, ec); |
| 3225 | } |
| 3226 | else { |
| 3227 | ec = detail::make_error_code(detail::portable_error::invalid_argument); |
| 3228 | } |
| 3229 | } |
| 3230 | } |
| 3231 | else if (is_regular_file(fs_from)) { |
| 3232 | if ((options & copy_options::directories_only) == copy_options::none) { |
| 3233 | if ((options & copy_options::create_symlinks) != copy_options::none) { |
| 3234 | create_symlink(from.is_absolute() ? from : canonical(from, ec), to, ec); |
| 3235 | } |
| 3236 | else if ((options & copy_options::create_hard_links) != copy_options::none) { |
| 3237 | create_hard_link(from, to, ec); |
| 3238 | } |
| 3239 | else if (is_directory(fs_to)) { |
| 3240 | copy_file(from, to / from.filename(), options, ec); |
| 3241 | } |
| 3242 | else { |
| 3243 | copy_file(from, to, options, ec); |
| 3244 | } |
| 3245 | } |
| 3246 | } |
| 3247 | #ifdef LWG_2682_BEHAVIOUR |
| 3248 | else if (is_directory(fs_from) && (options & copy_options::create_symlinks) != copy_options::none) { |
| 3249 | ec = detail::make_error_code(detail::portable_error::is_a_directory); |
| 3250 | } |
| 3251 | #endif |
| 3252 | else if (is_directory(fs_from) && (options == copy_options::none || (options & copy_options::recursive) != copy_options::none)) { |
| 3253 | if (!exists(fs_to)) { |
| 3254 | create_directory(to, from, ec); |
| 3255 | if (ec) { |
| 3256 | return; |
| 3257 | } |
| 3258 | } |
| 3259 | for (auto iter = directory_iterator(from, ec); iter != directory_iterator(); iter.increment(ec)) { |
| 3260 | if (!ec) { |
| 3261 | copy(iter->path(), to / iter->path().filename(), options | static_cast<copy_options>(0x8000), ec); |
| 3262 | } |
| 3263 | if (ec) { |
| 3264 | return; |
| 3265 | } |
| 3266 | } |
| 3267 | } |
| 3268 | return; |
| 3269 | } |
| 3270 | |
| 3271 | GHC_INLINE bool copy_file(const path& from, const path& to) |
| 3272 | { |
| 3273 | return copy_file(from, to, copy_options::none); |
| 3274 | } |
| 3275 | |
| 3276 | GHC_INLINE bool copy_file(const path& from, const path& to, std::error_code& ec) noexcept |
| 3277 | { |
| 3278 | return copy_file(from, to, copy_options::none, ec); |
| 3279 | } |
| 3280 | |
| 3281 | GHC_INLINE bool copy_file(const path& from, const path& to, copy_options option) |
| 3282 | { |
| 3283 | std::error_code ec; |
| 3284 | auto result = copy_file(from, to, option, ec); |
| 3285 | if (ec) { |
| 3286 | throw filesystem_error(detail::systemErrorText(ec.value()), from, to, ec); |
| 3287 | } |
| 3288 | return result; |
| 3289 | } |
| 3290 | |
| 3291 | GHC_INLINE bool copy_file(const path& from, const path& to, copy_options options, std::error_code& ec) noexcept |
| 3292 | { |
| 3293 | std::error_code tecf, tect; |
| 3294 | auto sf = status(from, tecf); |
| 3295 | auto st = status(to, tect); |
| 3296 | bool overwrite = false; |
| 3297 | ec.clear(); |
| 3298 | if (!is_regular_file(sf)) { |
| 3299 | ec = tecf; |
| 3300 | return false; |
| 3301 | } |
| 3302 | 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)) { |
| 3303 | ec = tect ? tect : detail::make_error_code(detail::portable_error::exists); |
| 3304 | return false; |
| 3305 | } |
| 3306 | if (exists(st)) { |
| 3307 | if ((options & copy_options::update_existing) == copy_options::update_existing) { |
| 3308 | auto from_time = last_write_time(from, ec); |
| 3309 | if (ec) { |
| 3310 | ec = detail::make_system_error(); |
| 3311 | return false; |
| 3312 | } |
| 3313 | auto to_time = last_write_time(to, ec); |
| 3314 | if (ec) { |
| 3315 | ec = detail::make_system_error(); |
| 3316 | return false; |
| 3317 | } |
| 3318 | if (from_time <= to_time) { |
| 3319 | return false; |
| 3320 | } |
| 3321 | } |
| 3322 | overwrite = true; |
| 3323 | } |
| 3324 | #ifdef GHC_OS_WINDOWS |
| 3325 | if (!::CopyFileW(detail::fromUtf8<std::wstring>(from.u8string()).c_str(), detail::fromUtf8<std::wstring>(to.u8string()).c_str(), !overwrite)) { |
| 3326 | ec = detail::make_system_error(); |
| 3327 | return false; |
| 3328 | } |
| 3329 | return true; |
| 3330 | #else |
| 3331 | std::vector<char> buffer(16384, '\0'); |
| 3332 | int in = -1, out = -1; |
| 3333 | if ((in = ::open(from.c_str(), O_RDONLY)) < 0) { |
| 3334 | ec = detail::make_system_error(); |
| 3335 | return false; |
| 3336 | } |
| 3337 | std::shared_ptr<void> guard_in(nullptr, [in](void*) { ::close(in); }); |
| 3338 | int mode = O_CREAT | O_WRONLY | O_TRUNC; |
| 3339 | if (!overwrite) { |
| 3340 | mode |= O_EXCL; |
| 3341 | } |
| 3342 | if ((out = ::open(to.c_str(), mode, static_cast<int>(sf.permissions() & perms::all))) < 0) { |
| 3343 | ec = detail::make_system_error(); |
| 3344 | return false; |
| 3345 | } |
| 3346 | std::shared_ptr<void> guard_out(nullptr, [out](void*) { ::close(out); }); |
| 3347 | ssize_t br, bw; |
| 3348 | while ((br = ::read(in, buffer.data(), buffer.size())) > 0) { |
| 3349 | ssize_t offset = 0; |
| 3350 | do { |
| 3351 | if ((bw = ::write(out, buffer.data() + offset, static_cast<size_t>(br))) > 0) { |
| 3352 | br -= bw; |
| 3353 | offset += bw; |
| 3354 | } |
| 3355 | else if (bw < 0) { |
| 3356 | ec = detail::make_system_error(); |
| 3357 | return false; |
| 3358 | } |
| 3359 | } while (br); |
| 3360 | } |
| 3361 | return true; |
| 3362 | #endif |
| 3363 | } |
| 3364 | |
| 3365 | GHC_INLINE void copy_symlink(const path& existing_symlink, const path& new_symlink) |
| 3366 | { |
| 3367 | std::error_code ec; |
| 3368 | copy_symlink(existing_symlink, new_symlink, ec); |
| 3369 | if (ec) { |
| 3370 | throw filesystem_error(detail::systemErrorText(ec.value()), existing_symlink, new_symlink, ec); |
| 3371 | } |
| 3372 | } |
| 3373 | |
| 3374 | GHC_INLINE void copy_symlink(const path& existing_symlink, const path& new_symlink, std::error_code& ec) noexcept |
| 3375 | { |
| 3376 | ec.clear(); |
| 3377 | auto to = read_symlink(existing_symlink, ec); |
| 3378 | if (!ec) { |
| 3379 | if (exists(to, ec) && is_directory(to, ec)) { |
| 3380 | create_directory_symlink(to, new_symlink, ec); |
| 3381 | } |
| 3382 | else { |
| 3383 | create_symlink(to, new_symlink, ec); |
| 3384 | } |
| 3385 | } |
| 3386 | } |
| 3387 | |
| 3388 | GHC_INLINE bool create_directories(const path& p) |
| 3389 | { |
| 3390 | std::error_code ec; |
| 3391 | auto result = create_directories(p, ec); |
| 3392 | if (ec) { |
| 3393 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 3394 | } |
| 3395 | return result; |
| 3396 | } |
| 3397 | |
| 3398 | GHC_INLINE bool create_directories(const path& p, std::error_code& ec) noexcept |
| 3399 | { |
| 3400 | path current; |
| 3401 | ec.clear(); |
| 3402 | bool didCreate = false; |
| 3403 | for (path::string_type part : p) { |
| 3404 | current /= part; |
| 3405 | if (current != p.root_name() && current != p.root_path()) { |
| 3406 | std::error_code tec; |
| 3407 | auto fs = status(current, tec); |
| 3408 | if (tec && fs.type() != file_type::not_found) { |
| 3409 | ec = tec; |
| 3410 | return false; |
| 3411 | } |
| 3412 | if (!exists(fs)) { |
| 3413 | create_directory(current, ec); |
| 3414 | if (ec) { |
| 3415 | std::error_code tmp_ec; |
| 3416 | if (is_directory(current, tmp_ec)) { |
| 3417 | ec.clear(); |
| 3418 | } else { |
| 3419 | return false; |
| 3420 | } |
| 3421 | } |
| 3422 | didCreate = true; |
| 3423 | } |
| 3424 | #ifndef LWG_2935_BEHAVIOUR |
| 3425 | else if (!is_directory(fs)) { |
| 3426 | ec = detail::make_error_code(detail::portable_error::exists); |
| 3427 | return false; |
| 3428 | } |
| 3429 | #endif |
| 3430 | } |
| 3431 | } |
| 3432 | return didCreate; |
| 3433 | } |
| 3434 | |
| 3435 | GHC_INLINE bool create_directory(const path& p) |
| 3436 | { |
| 3437 | std::error_code ec; |
| 3438 | auto result = create_directory(p, path(), ec); |
| 3439 | if (ec) { |
| 3440 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 3441 | } |
| 3442 | return result; |
| 3443 | } |
| 3444 | |
| 3445 | GHC_INLINE bool create_directory(const path& p, std::error_code& ec) noexcept |
| 3446 | { |
| 3447 | return create_directory(p, path(), ec); |
| 3448 | } |
| 3449 | |
| 3450 | GHC_INLINE bool create_directory(const path& p, const path& attributes) |
| 3451 | { |
| 3452 | std::error_code ec; |
| 3453 | auto result = create_directory(p, attributes, ec); |
| 3454 | if (ec) { |
| 3455 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 3456 | } |
| 3457 | return result; |
| 3458 | } |
| 3459 | |
| 3460 | GHC_INLINE bool create_directory(const path& p, const path& attributes, std::error_code& ec) noexcept |
| 3461 | { |
| 3462 | std::error_code tec; |
| 3463 | ec.clear(); |
| 3464 | auto fs = status(p, tec); |
| 3465 | #ifdef LWG_2935_BEHAVIOUR |
| 3466 | if (status_known(fs) && exists(fs)) { |
| 3467 | return false; |
| 3468 | } |
| 3469 | #else |
| 3470 | if (status_known(fs) && exists(fs) && is_directory(fs)) { |
| 3471 | return false; |
| 3472 | } |
| 3473 | #endif |
| 3474 | #ifdef GHC_OS_WINDOWS |
| 3475 | if (!attributes.empty()) { |
| 3476 | if (!::CreateDirectoryExW(detail::fromUtf8<std::wstring>(attributes.u8string()).c_str(), detail::fromUtf8<std::wstring>(p.u8string()).c_str(), NULL)) { |
| 3477 | ec = detail::make_system_error(); |
| 3478 | return false; |
| 3479 | } |
| 3480 | } |
| 3481 | else if (!::CreateDirectoryW(detail::fromUtf8<std::wstring>(p.u8string()).c_str(), NULL)) { |
| 3482 | ec = detail::make_system_error(); |
| 3483 | return false; |
| 3484 | } |
| 3485 | #else |
| 3486 | ::mode_t attribs = static_cast<mode_t>(perms::all); |
| 3487 | if (!attributes.empty()) { |
| 3488 | struct ::stat fileStat; |
| 3489 | if (::stat(attributes.c_str(), &fileStat) != 0) { |
| 3490 | ec = detail::make_system_error(); |
| 3491 | return false; |
| 3492 | } |
| 3493 | attribs = fileStat.st_mode; |
| 3494 | } |
| 3495 | if (::mkdir(p.c_str(), attribs) != 0) { |
| 3496 | ec = detail::make_system_error(); |
| 3497 | return false; |
| 3498 | } |
| 3499 | #endif |
| 3500 | return true; |
| 3501 | } |
| 3502 | |
| 3503 | GHC_INLINE void create_directory_symlink(const path& to, const path& new_symlink) |
| 3504 | { |
| 3505 | std::error_code ec; |
| 3506 | create_directory_symlink(to, new_symlink, ec); |
| 3507 | if (ec) { |
| 3508 | throw filesystem_error(detail::systemErrorText(ec.value()), to, new_symlink, ec); |
| 3509 | } |
| 3510 | } |
| 3511 | |
| 3512 | GHC_INLINE void create_directory_symlink(const path& to, const path& new_symlink, std::error_code& ec) noexcept |
| 3513 | { |
| 3514 | detail::create_symlink(to, new_symlink, true, ec); |
| 3515 | } |
| 3516 | |
| 3517 | GHC_INLINE void create_hard_link(const path& to, const path& new_hard_link) |
| 3518 | { |
| 3519 | std::error_code ec; |
| 3520 | create_hard_link(to, new_hard_link, ec); |
| 3521 | if (ec) { |
| 3522 | throw filesystem_error(detail::systemErrorText(ec.value()), to, new_hard_link, ec); |
| 3523 | } |
| 3524 | } |
| 3525 | |
| 3526 | GHC_INLINE void create_hard_link(const path& to, const path& new_hard_link, std::error_code& ec) noexcept |
| 3527 | { |
| 3528 | detail::create_hardlink(to, new_hard_link, ec); |
| 3529 | } |
| 3530 | |
| 3531 | GHC_INLINE void create_symlink(const path& to, const path& new_symlink) |
| 3532 | { |
| 3533 | std::error_code ec; |
| 3534 | create_symlink(to, new_symlink, ec); |
| 3535 | if (ec) { |
| 3536 | throw filesystem_error(detail::systemErrorText(ec.value()), to, new_symlink, ec); |
| 3537 | } |
| 3538 | } |
| 3539 | |
| 3540 | GHC_INLINE void create_symlink(const path& to, const path& new_symlink, std::error_code& ec) noexcept |
| 3541 | { |
| 3542 | detail::create_symlink(to, new_symlink, false, ec); |
| 3543 | } |
| 3544 | |
| 3545 | GHC_INLINE path current_path() |
| 3546 | { |
| 3547 | std::error_code ec; |
| 3548 | auto result = current_path(ec); |
| 3549 | if (ec) { |
| 3550 | throw filesystem_error(detail::systemErrorText(ec.value()), ec); |
| 3551 | } |
| 3552 | return result; |
| 3553 | } |
| 3554 | |
| 3555 | GHC_INLINE path current_path(std::error_code& ec) |
| 3556 | { |
| 3557 | ec.clear(); |
| 3558 | #ifdef GHC_OS_WINDOWS |
| 3559 | DWORD pathlen = ::GetCurrentDirectoryW(0, 0); |
| 3560 | std::unique_ptr<wchar_t[]> buffer(new wchar_t[size_t(pathlen) + 1]); |
| 3561 | if (::GetCurrentDirectoryW(pathlen, buffer.get()) == 0) { |
| 3562 | ec = detail::make_system_error(); |
| 3563 | return path(); |
| 3564 | } |
| 3565 | return path(std::wstring(buffer.get()), path::native_format); |
| 3566 | #else |
| 3567 | size_t pathlen = static_cast<size_t>(std::max(int(::pathconf(".", _PC_PATH_MAX)), int(PATH_MAX))); |
| 3568 | std::unique_ptr<char[]> buffer(new char[pathlen + 1]); |
| 3569 | if (::getcwd(buffer.get(), pathlen) == nullptr) { |
| 3570 | ec = detail::make_system_error(); |
| 3571 | return path(); |
| 3572 | } |
| 3573 | return path(buffer.get()); |
| 3574 | #endif |
| 3575 | } |
| 3576 | |
| 3577 | GHC_INLINE void current_path(const path& p) |
| 3578 | { |
| 3579 | std::error_code ec; |
| 3580 | current_path(p, ec); |
| 3581 | if (ec) { |
| 3582 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 3583 | } |
| 3584 | } |
| 3585 | |
| 3586 | GHC_INLINE void current_path(const path& p, std::error_code& ec) noexcept |
| 3587 | { |
| 3588 | ec.clear(); |
| 3589 | #ifdef GHC_OS_WINDOWS |
| 3590 | if (!::SetCurrentDirectoryW(detail::fromUtf8<std::wstring>(p.u8string()).c_str())) { |
| 3591 | ec = detail::make_system_error(); |
| 3592 | } |
| 3593 | #else |
| 3594 | if (::chdir(p.string().c_str()) == -1) { |
| 3595 | ec = detail::make_system_error(); |
| 3596 | } |
| 3597 | #endif |
| 3598 | } |
| 3599 | |
| 3600 | GHC_INLINE bool exists(file_status s) noexcept |
| 3601 | { |
| 3602 | return status_known(s) && s.type() != file_type::not_found; |
| 3603 | } |
| 3604 | |
| 3605 | GHC_INLINE bool exists(const path& p) |
| 3606 | { |
| 3607 | return exists(status(p)); |
| 3608 | } |
| 3609 | |
| 3610 | GHC_INLINE bool exists(const path& p, std::error_code& ec) noexcept |
| 3611 | { |
| 3612 | file_status s = status(p, ec); |
| 3613 | if (status_known(s)) { |
| 3614 | ec.clear(); |
| 3615 | } |
| 3616 | return exists(s); |
| 3617 | } |
| 3618 | |
| 3619 | GHC_INLINE bool equivalent(const path& p1, const path& p2) |
| 3620 | { |
| 3621 | std::error_code ec; |
| 3622 | bool result = equivalent(p1, p2, ec); |
| 3623 | if (ec) { |
| 3624 | throw filesystem_error(detail::systemErrorText(ec.value()), p1, p2, ec); |
| 3625 | } |
| 3626 | return result; |
| 3627 | } |
| 3628 | |
| 3629 | GHC_INLINE bool equivalent(const path& p1, const path& p2, std::error_code& ec) noexcept |
| 3630 | { |
| 3631 | ec.clear(); |
| 3632 | #ifdef GHC_OS_WINDOWS |
| 3633 | std::shared_ptr<void> file1(::CreateFileW(p1.wstring().c_str(), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0), CloseHandle); |
| 3634 | auto e1 = ::GetLastError(); |
| 3635 | std::shared_ptr<void> file2(::CreateFileW(p2.wstring().c_str(), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0), CloseHandle); |
| 3636 | if (file1.get() == INVALID_HANDLE_VALUE || file2.get() == INVALID_HANDLE_VALUE) { |
| 3637 | #ifdef LWG_2937_BEHAVIOUR |
| 3638 | ec = detail::make_system_error(e1 ? e1 : ::GetLastError()); |
| 3639 | #else |
| 3640 | if (file1 == file2) { |
| 3641 | ec = detail::make_system_error(e1 ? e1 : ::GetLastError()); |
| 3642 | } |
| 3643 | #endif |
| 3644 | return false; |
| 3645 | } |
| 3646 | BY_HANDLE_FILE_INFORMATION inf1, inf2; |
| 3647 | if (!::GetFileInformationByHandle(file1.get(), &inf1)) { |
| 3648 | ec = detail::make_system_error(); |
| 3649 | return false; |
| 3650 | } |
| 3651 | if (!::GetFileInformationByHandle(file2.get(), &inf2)) { |
| 3652 | ec = detail::make_system_error(); |
| 3653 | return false; |
| 3654 | } |
| 3655 | return inf1.ftLastWriteTime.dwLowDateTime == inf2.ftLastWriteTime.dwLowDateTime && inf1.ftLastWriteTime.dwHighDateTime == inf2.ftLastWriteTime.dwHighDateTime && inf1.nFileIndexHigh == inf2.nFileIndexHigh && inf1.nFileIndexLow == inf2.nFileIndexLow && |
| 3656 | inf1.nFileSizeHigh == inf2.nFileSizeHigh && inf1.nFileSizeLow == inf2.nFileSizeLow && inf1.dwVolumeSerialNumber == inf2.dwVolumeSerialNumber; |
| 3657 | #else |
| 3658 | struct ::stat s1, s2; |
| 3659 | auto rc1 = ::stat(p1.c_str(), &s1); |
| 3660 | auto e1 = errno; |
| 3661 | auto rc2 = ::stat(p2.c_str(), &s2); |
| 3662 | if (rc1 || rc2) { |
| 3663 | #ifdef LWG_2937_BEHAVIOUR |
| 3664 | ec = detail::make_system_error(e1 ? e1 : errno); |
| 3665 | #else |
| 3666 | if (rc1 && rc2) { |
| 3667 | ec = detail::make_system_error(e1 ? e1 : errno); |
| 3668 | } |
| 3669 | #endif |
| 3670 | return false; |
| 3671 | } |
| 3672 | 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; |
| 3673 | #endif |
| 3674 | } |
| 3675 | |
| 3676 | GHC_INLINE uintmax_t file_size(const path& p) |
| 3677 | { |
| 3678 | std::error_code ec; |
| 3679 | auto result = file_size(p, ec); |
| 3680 | if (ec) { |
| 3681 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 3682 | } |
| 3683 | return result; |
| 3684 | } |
| 3685 | |
| 3686 | GHC_INLINE uintmax_t file_size(const path& p, std::error_code& ec) noexcept |
| 3687 | { |
| 3688 | ec.clear(); |
| 3689 | #ifdef GHC_OS_WINDOWS |
| 3690 | WIN32_FILE_ATTRIBUTE_DATA attr; |
| 3691 | if (!GetFileAttributesExW(detail::fromUtf8<std::wstring>(p.u8string()).c_str(), GetFileExInfoStandard, &attr)) { |
| 3692 | ec = detail::make_system_error(); |
| 3693 | return static_cast<uintmax_t>(-1); |
| 3694 | } |
| 3695 | return static_cast<uintmax_t>(attr.nFileSizeHigh) << (sizeof(attr.nFileSizeHigh) * 8) | attr.nFileSizeLow; |
| 3696 | #else |
| 3697 | struct ::stat fileStat; |
| 3698 | if (::stat(p.c_str(), &fileStat) == -1) { |
| 3699 | ec = detail::make_system_error(); |
| 3700 | return static_cast<uintmax_t>(-1); |
| 3701 | } |
| 3702 | return static_cast<uintmax_t>(fileStat.st_size); |
| 3703 | #endif |
| 3704 | } |
| 3705 | |
| 3706 | GHC_INLINE uintmax_t hard_link_count(const path& p) |
| 3707 | { |
| 3708 | std::error_code ec; |
| 3709 | auto result = hard_link_count(p, ec); |
| 3710 | if (ec) { |
| 3711 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 3712 | } |
| 3713 | return result; |
| 3714 | } |
| 3715 | |
| 3716 | GHC_INLINE uintmax_t hard_link_count(const path& p, std::error_code& ec) noexcept |
| 3717 | { |
| 3718 | ec.clear(); |
| 3719 | #ifdef GHC_OS_WINDOWS |
| 3720 | uintmax_t result = static_cast<uintmax_t>(-1); |
| 3721 | std::shared_ptr<void> file(::CreateFileW(p.wstring().c_str(), 0, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0), CloseHandle); |
| 3722 | BY_HANDLE_FILE_INFORMATION inf; |
| 3723 | if (file.get() == INVALID_HANDLE_VALUE) { |
| 3724 | ec = detail::make_system_error(); |
| 3725 | } |
| 3726 | else { |
| 3727 | if (!::GetFileInformationByHandle(file.get(), &inf)) { |
| 3728 | ec = detail::make_system_error(); |
| 3729 | } |
| 3730 | else { |
| 3731 | result = inf.nNumberOfLinks; |
| 3732 | } |
| 3733 | } |
| 3734 | return result; |
| 3735 | #else |
| 3736 | uintmax_t result = 0; |
| 3737 | file_status fs = detail::status_ex(p, ec, nullptr, nullptr, &result, nullptr); |
| 3738 | if (fs.type() == file_type::not_found) { |
| 3739 | ec = detail::make_error_code(detail::portable_error::not_found); |
| 3740 | } |
| 3741 | return ec ? static_cast<uintmax_t>(-1) : result; |
| 3742 | #endif |
| 3743 | } |
| 3744 | |
| 3745 | GHC_INLINE bool is_block_file(file_status s) noexcept |
| 3746 | { |
| 3747 | return s.type() == file_type::block; |
| 3748 | } |
| 3749 | |
| 3750 | GHC_INLINE bool is_block_file(const path& p) |
| 3751 | { |
| 3752 | return is_block_file(status(p)); |
| 3753 | } |
| 3754 | |
| 3755 | GHC_INLINE bool is_block_file(const path& p, std::error_code& ec) noexcept |
| 3756 | { |
| 3757 | return is_block_file(status(p, ec)); |
| 3758 | } |
| 3759 | |
| 3760 | GHC_INLINE bool is_character_file(file_status s) noexcept |
| 3761 | { |
| 3762 | return s.type() == file_type::character; |
| 3763 | } |
| 3764 | |
| 3765 | GHC_INLINE bool is_character_file(const path& p) |
| 3766 | { |
| 3767 | return is_character_file(status(p)); |
| 3768 | } |
| 3769 | |
| 3770 | GHC_INLINE bool is_character_file(const path& p, std::error_code& ec) noexcept |
| 3771 | { |
| 3772 | return is_character_file(status(p, ec)); |
| 3773 | } |
| 3774 | |
| 3775 | GHC_INLINE bool is_directory(file_status s) noexcept |
| 3776 | { |
| 3777 | return s.type() == file_type::directory; |
| 3778 | } |
| 3779 | |
| 3780 | GHC_INLINE bool is_directory(const path& p) |
| 3781 | { |
| 3782 | return is_directory(status(p)); |
| 3783 | } |
| 3784 | |
| 3785 | GHC_INLINE bool is_directory(const path& p, std::error_code& ec) noexcept |
| 3786 | { |
| 3787 | return is_directory(status(p, ec)); |
| 3788 | } |
| 3789 | |
| 3790 | GHC_INLINE bool is_empty(const path& p) |
| 3791 | { |
| 3792 | if (is_directory(p)) { |
| 3793 | return directory_iterator(p) == directory_iterator(); |
| 3794 | } |
| 3795 | else { |
| 3796 | return file_size(p) == 0; |
| 3797 | } |
| 3798 | } |
| 3799 | |
| 3800 | GHC_INLINE bool is_empty(const path& p, std::error_code& ec) noexcept |
| 3801 | { |
| 3802 | auto fs = status(p, ec); |
| 3803 | if (ec) { |
| 3804 | return false; |
| 3805 | } |
| 3806 | if (is_directory(fs)) { |
| 3807 | directory_iterator iter(p, ec); |
| 3808 | if (ec) { |
| 3809 | return false; |
| 3810 | } |
| 3811 | return iter == directory_iterator(); |
| 3812 | } |
| 3813 | else { |
| 3814 | auto sz = file_size(p, ec); |
| 3815 | if (ec) { |
| 3816 | return false; |
| 3817 | } |
| 3818 | return sz == 0; |
| 3819 | } |
| 3820 | } |
| 3821 | |
| 3822 | GHC_INLINE bool is_fifo(file_status s) noexcept |
| 3823 | { |
| 3824 | return s.type() == file_type::fifo; |
| 3825 | } |
| 3826 | |
| 3827 | GHC_INLINE bool is_fifo(const path& p) |
| 3828 | { |
| 3829 | return is_fifo(status(p)); |
| 3830 | } |
| 3831 | |
| 3832 | GHC_INLINE bool is_fifo(const path& p, std::error_code& ec) noexcept |
| 3833 | { |
| 3834 | return is_fifo(status(p, ec)); |
| 3835 | } |
| 3836 | |
| 3837 | GHC_INLINE bool is_other(file_status s) noexcept |
| 3838 | { |
| 3839 | return exists(s) && !is_regular_file(s) && !is_directory(s) && !is_symlink(s); |
| 3840 | } |
| 3841 | |
| 3842 | GHC_INLINE bool is_other(const path& p) |
| 3843 | { |
| 3844 | return is_other(status(p)); |
| 3845 | } |
| 3846 | |
| 3847 | GHC_INLINE bool is_other(const path& p, std::error_code& ec) noexcept |
| 3848 | { |
| 3849 | return is_other(status(p, ec)); |
| 3850 | } |
| 3851 | |
| 3852 | GHC_INLINE bool is_regular_file(file_status s) noexcept |
| 3853 | { |
| 3854 | return s.type() == file_type::regular; |
| 3855 | } |
| 3856 | |
| 3857 | GHC_INLINE bool is_regular_file(const path& p) |
| 3858 | { |
| 3859 | return is_regular_file(status(p)); |
| 3860 | } |
| 3861 | |
| 3862 | GHC_INLINE bool is_regular_file(const path& p, std::error_code& ec) noexcept |
| 3863 | { |
| 3864 | return is_regular_file(status(p, ec)); |
| 3865 | } |
| 3866 | |
| 3867 | GHC_INLINE bool is_socket(file_status s) noexcept |
| 3868 | { |
| 3869 | return s.type() == file_type::socket; |
| 3870 | } |
| 3871 | |
| 3872 | GHC_INLINE bool is_socket(const path& p) |
| 3873 | { |
| 3874 | return is_socket(status(p)); |
| 3875 | } |
| 3876 | |
| 3877 | GHC_INLINE bool is_socket(const path& p, std::error_code& ec) noexcept |
| 3878 | { |
| 3879 | return is_socket(status(p, ec)); |
| 3880 | } |
| 3881 | |
| 3882 | GHC_INLINE bool is_symlink(file_status s) noexcept |
| 3883 | { |
| 3884 | return s.type() == file_type::symlink; |
| 3885 | } |
| 3886 | |
| 3887 | GHC_INLINE bool is_symlink(const path& p) |
| 3888 | { |
| 3889 | return is_symlink(symlink_status(p)); |
| 3890 | } |
| 3891 | |
| 3892 | GHC_INLINE bool is_symlink(const path& p, std::error_code& ec) noexcept |
| 3893 | { |
| 3894 | return is_symlink(symlink_status(p, ec)); |
| 3895 | } |
| 3896 | |
| 3897 | GHC_INLINE file_time_type last_write_time(const path& p) |
| 3898 | { |
| 3899 | std::error_code ec; |
| 3900 | auto result = last_write_time(p, ec); |
| 3901 | if (ec) { |
| 3902 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 3903 | } |
| 3904 | return result; |
| 3905 | } |
| 3906 | |
| 3907 | GHC_INLINE file_time_type last_write_time(const path& p, std::error_code& ec) noexcept |
| 3908 | { |
| 3909 | time_t result = 0; |
| 3910 | ec.clear(); |
| 3911 | file_status fs = detail::status_ex(p, ec, nullptr, nullptr, nullptr, &result); |
| 3912 | return ec ? (file_time_type::min)() : std::chrono::system_clock::from_time_t(result); |
| 3913 | } |
| 3914 | |
| 3915 | GHC_INLINE void last_write_time(const path& p, file_time_type new_time) |
| 3916 | { |
| 3917 | std::error_code ec; |
| 3918 | last_write_time(p, new_time, ec); |
| 3919 | if (ec) { |
| 3920 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 3921 | } |
| 3922 | } |
| 3923 | |
| 3924 | GHC_INLINE void last_write_time(const path& p, file_time_type new_time, std::error_code& ec) noexcept |
| 3925 | { |
| 3926 | ec.clear(); |
| 3927 | auto d = new_time.time_since_epoch(); |
| 3928 | #ifdef GHC_OS_WINDOWS |
| 3929 | std::shared_ptr<void> file(::CreateFileW(p.wstring().c_str(), FILE_WRITE_ATTRIBUTES, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL), ::CloseHandle); |
| 3930 | FILETIME ft; |
| 3931 | auto tt = std::chrono::duration_cast<std::chrono::microseconds>(d).count() * 10 + 116444736000000000; |
| 3932 | ft.dwLowDateTime = static_cast<DWORD>(tt); |
| 3933 | ft.dwHighDateTime = static_cast<DWORD>(tt >> 32); |
| 3934 | if (!::SetFileTime(file.get(), 0, 0, &ft)) { |
| 3935 | ec = detail::make_system_error(); |
| 3936 | } |
| 3937 | #elif defined(GHC_OS_MACOS) |
| 3938 | #ifdef __MAC_OS_X_VERSION_MIN_REQUIRED |
| 3939 | #if __MAC_OS_X_VERSION_MIN_REQUIRED < 101300 |
| 3940 | struct ::stat fs; |
| 3941 | if (::stat(p.c_str(), &fs) == 0) { |
| 3942 | struct ::timeval tv[2]; |
| 3943 | tv[0].tv_sec = fs.st_atimespec.tv_sec; |
| 3944 | tv[0].tv_usec = static_cast<int>(fs.st_atimespec.tv_nsec / 1000); |
| 3945 | tv[1].tv_sec = std::chrono::duration_cast<std::chrono::seconds>(d).count(); |
| 3946 | tv[1].tv_usec = static_cast<int>(std::chrono::duration_cast<std::chrono::microseconds>(d).count() % 1000000); |
| 3947 | if (::utimes(p.c_str(), tv) == 0) { |
| 3948 | return; |
| 3949 | } |
| 3950 | } |
| 3951 | ec = detail::make_system_error(); |
| 3952 | return; |
| 3953 | #else |
| 3954 | struct ::timespec times[2]; |
| 3955 | times[0].tv_sec = 0; |
| 3956 | times[0].tv_nsec = UTIME_OMIT; |
| 3957 | times[1].tv_sec = std::chrono::duration_cast<std::chrono::seconds>(d).count(); |
| 3958 | times[1].tv_nsec = std::chrono::duration_cast<std::chrono::nanoseconds>(d).count() % 1000000000; |
| 3959 | if (::utimensat(AT_FDCWD, p.c_str(), times, AT_SYMLINK_NOFOLLOW) != 0) { |
| 3960 | ec = detail::make_system_error(); |
| 3961 | } |
| 3962 | return; |
| 3963 | #endif |
| 3964 | #endif |
| 3965 | #else |
| 3966 | struct ::timespec times[2]; |
| 3967 | times[0].tv_sec = 0; |
| 3968 | times[0].tv_nsec = UTIME_OMIT; |
| 3969 | times[1].tv_sec = static_cast<decltype(times[1].tv_sec)>(std::chrono::duration_cast<std::chrono::seconds>(d).count()); |
| 3970 | times[1].tv_nsec = static_cast<decltype(times[1].tv_nsec)>(std::chrono::duration_cast<std::chrono::nanoseconds>(d).count() % 1000000000); |
| 3971 | if (::utimensat(AT_FDCWD, p.c_str(), times, AT_SYMLINK_NOFOLLOW) != 0) { |
| 3972 | ec = detail::make_system_error(); |
| 3973 | } |
| 3974 | return; |
| 3975 | #endif |
| 3976 | } |
| 3977 | |
| 3978 | GHC_INLINE void permissions(const path& p, perms prms, perm_options opts) |
| 3979 | { |
| 3980 | std::error_code ec; |
| 3981 | permissions(p, prms, opts, ec); |
| 3982 | if (ec) { |
| 3983 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 3984 | } |
| 3985 | } |
| 3986 | |
| 3987 | GHC_INLINE void permissions(const path& p, perms prms, std::error_code& ec) noexcept |
| 3988 | { |
| 3989 | permissions(p, prms, perm_options::replace, ec); |
| 3990 | } |
| 3991 | |
| 3992 | GHC_INLINE void permissions(const path& p, perms prms, perm_options opts, std::error_code& ec) |
| 3993 | { |
| 3994 | if (static_cast<int>(opts & (perm_options::replace | perm_options::add | perm_options::remove)) == 0) { |
| 3995 | ec = detail::make_error_code(detail::portable_error::invalid_argument); |
| 3996 | return; |
| 3997 | } |
| 3998 | auto fs = symlink_status(p, ec); |
| 3999 | if ((opts & perm_options::replace) != perm_options::replace) { |
| 4000 | if ((opts & perm_options::add) == perm_options::add) { |
| 4001 | prms = fs.permissions() | prms; |
| 4002 | } |
| 4003 | else { |
| 4004 | prms = fs.permissions() & ~prms; |
| 4005 | } |
| 4006 | } |
| 4007 | #ifdef GHC_OS_WINDOWS |
| 4008 | #ifdef __GNUC__ |
| 4009 | auto oldAttr = GetFileAttributesW(p.wstring().c_str()); |
| 4010 | if (oldAttr != INVALID_FILE_ATTRIBUTES) { |
| 4011 | DWORD newAttr = ((prms & perms::owner_write) == perms::owner_write) ? oldAttr & ~(static_cast<DWORD>(FILE_ATTRIBUTE_READONLY)) : oldAttr | FILE_ATTRIBUTE_READONLY; |
| 4012 | if (oldAttr == newAttr || SetFileAttributesW(p.wstring().c_str(), newAttr)) { |
| 4013 | return; |
| 4014 | } |
| 4015 | } |
| 4016 | ec = detail::make_system_error(); |
| 4017 | #else |
| 4018 | int mode = 0; |
| 4019 | if ((prms & perms::owner_read) == perms::owner_read) { |
| 4020 | mode |= _S_IREAD; |
| 4021 | } |
| 4022 | if ((prms & perms::owner_write) == perms::owner_write) { |
| 4023 | mode |= _S_IWRITE; |
| 4024 | } |
| 4025 | if (::_wchmod(p.wstring().c_str(), mode) != 0) { |
| 4026 | ec = detail::make_system_error(); |
| 4027 | } |
| 4028 | #endif |
| 4029 | #else |
| 4030 | if ((opts & perm_options::nofollow) != perm_options::nofollow) { |
| 4031 | if (::chmod(p.c_str(), static_cast<mode_t>(prms)) != 0) { |
| 4032 | ec = detail::make_system_error(); |
| 4033 | } |
| 4034 | } |
| 4035 | #endif |
| 4036 | } |
| 4037 | |
| 4038 | GHC_INLINE path proximate(const path& p, std::error_code& ec) |
| 4039 | { |
| 4040 | return proximate(p, current_path(), ec); |
| 4041 | } |
| 4042 | |
| 4043 | GHC_INLINE path proximate(const path& p, const path& base) |
| 4044 | { |
| 4045 | return weakly_canonical(p).lexically_proximate(weakly_canonical(base)); |
| 4046 | } |
| 4047 | |
| 4048 | GHC_INLINE path proximate(const path& p, const path& base, std::error_code& ec) |
| 4049 | { |
| 4050 | return weakly_canonical(p, ec).lexically_proximate(weakly_canonical(base, ec)); |
| 4051 | } |
| 4052 | |
| 4053 | GHC_INLINE path read_symlink(const path& p) |
| 4054 | { |
| 4055 | std::error_code ec; |
| 4056 | auto result = read_symlink(p, ec); |
| 4057 | if (ec) { |
| 4058 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 4059 | } |
| 4060 | return result; |
| 4061 | } |
| 4062 | |
| 4063 | GHC_INLINE path read_symlink(const path& p, std::error_code& ec) |
| 4064 | { |
| 4065 | file_status fs = symlink_status(p, ec); |
| 4066 | if (fs.type() != file_type::symlink) { |
| 4067 | ec = detail::make_error_code(detail::portable_error::invalid_argument); |
| 4068 | return path(); |
| 4069 | } |
| 4070 | auto result = detail::resolveSymlink(p, ec); |
| 4071 | return ec ? path() : result; |
| 4072 | } |
| 4073 | |
| 4074 | GHC_INLINE path relative(const path& p, std::error_code& ec) |
| 4075 | { |
| 4076 | return relative(p, current_path(ec), ec); |
| 4077 | } |
| 4078 | |
| 4079 | GHC_INLINE path relative(const path& p, const path& base) |
| 4080 | { |
| 4081 | return weakly_canonical(p).lexically_relative(weakly_canonical(base)); |
| 4082 | } |
| 4083 | |
| 4084 | GHC_INLINE path relative(const path& p, const path& base, std::error_code& ec) |
| 4085 | { |
| 4086 | return weakly_canonical(p, ec).lexically_relative(weakly_canonical(base, ec)); |
| 4087 | } |
| 4088 | |
| 4089 | GHC_INLINE bool remove(const path& p) |
| 4090 | { |
| 4091 | std::error_code ec; |
| 4092 | auto result = remove(p, ec); |
| 4093 | if (ec) { |
| 4094 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 4095 | } |
| 4096 | return result; |
| 4097 | } |
| 4098 | |
| 4099 | GHC_INLINE bool remove(const path& p, std::error_code& ec) noexcept |
| 4100 | { |
| 4101 | ec.clear(); |
| 4102 | #ifdef GHC_OS_WINDOWS |
| 4103 | std::wstring np = detail::fromUtf8<std::wstring>(p.u8string()); |
| 4104 | DWORD attr = GetFileAttributesW(np.c_str()); |
| 4105 | if (attr == INVALID_FILE_ATTRIBUTES) { |
| 4106 | auto error = ::GetLastError(); |
| 4107 | if (error == ERROR_FILE_NOT_FOUND || error == ERROR_PATH_NOT_FOUND) { |
| 4108 | return false; |
| 4109 | } |
| 4110 | ec = detail::make_system_error(error); |
| 4111 | } |
| 4112 | if (!ec) { |
| 4113 | if (attr & FILE_ATTRIBUTE_DIRECTORY) { |
| 4114 | if (!RemoveDirectoryW(np.c_str())) { |
| 4115 | ec = detail::make_system_error(); |
| 4116 | } |
| 4117 | } |
| 4118 | else { |
| 4119 | if (!DeleteFileW(np.c_str())) { |
| 4120 | ec = detail::make_system_error(); |
| 4121 | } |
| 4122 | } |
| 4123 | } |
| 4124 | #else |
| 4125 | if (::remove(p.c_str()) == -1) { |
| 4126 | auto error = errno; |
| 4127 | if (error == ENOENT) { |
| 4128 | return false; |
| 4129 | } |
| 4130 | ec = detail::make_system_error(); |
| 4131 | } |
| 4132 | #endif |
| 4133 | return ec ? false : true; |
| 4134 | } |
| 4135 | |
| 4136 | GHC_INLINE uintmax_t remove_all(const path& p) |
| 4137 | { |
| 4138 | std::error_code ec; |
| 4139 | auto result = remove_all(p, ec); |
| 4140 | if (ec) { |
| 4141 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 4142 | } |
| 4143 | return result; |
| 4144 | } |
| 4145 | |
| 4146 | GHC_INLINE uintmax_t remove_all(const path& p, std::error_code& ec) noexcept |
| 4147 | { |
| 4148 | ec.clear(); |
| 4149 | uintmax_t count = 0; |
| 4150 | if (p == "/") { |
| 4151 | ec = detail::make_error_code(detail::portable_error::not_supported); |
| 4152 | return static_cast<uintmax_t>(-1); |
| 4153 | } |
| 4154 | std::error_code tec; |
| 4155 | auto fs = status(p, tec); |
| 4156 | if (exists(fs) && is_directory(fs)) { |
| 4157 | for (auto iter = directory_iterator(p, ec); iter != directory_iterator(); iter.increment(ec)) { |
| 4158 | if (ec) { |
| 4159 | break; |
| 4160 | } |
| 4161 | if (!iter->is_symlink() && iter->is_directory()) { |
| 4162 | count += remove_all(iter->path(), ec); |
| 4163 | if (ec) { |
| 4164 | return static_cast<uintmax_t>(-1); |
| 4165 | } |
| 4166 | } |
| 4167 | else { |
| 4168 | remove(iter->path(), ec); |
| 4169 | if (ec) { |
| 4170 | return static_cast<uintmax_t>(-1); |
| 4171 | } |
| 4172 | ++count; |
| 4173 | } |
| 4174 | } |
| 4175 | } |
| 4176 | if (!ec) { |
| 4177 | if (remove(p, ec)) { |
| 4178 | ++count; |
| 4179 | } |
| 4180 | } |
| 4181 | if (ec) { |
| 4182 | return static_cast<uintmax_t>(-1); |
| 4183 | } |
| 4184 | return count; |
| 4185 | } |
| 4186 | |
| 4187 | GHC_INLINE void rename(const path& from, const path& to) |
| 4188 | { |
| 4189 | std::error_code ec; |
| 4190 | rename(from, to, ec); |
| 4191 | if (ec) { |
| 4192 | throw filesystem_error(detail::systemErrorText(ec.value()), from, to, ec); |
| 4193 | } |
| 4194 | } |
| 4195 | |
| 4196 | GHC_INLINE void rename(const path& from, const path& to, std::error_code& ec) noexcept |
| 4197 | { |
| 4198 | ec.clear(); |
| 4199 | #ifdef GHC_OS_WINDOWS |
| 4200 | if (from != to) { |
| 4201 | if (!MoveFileExW(detail::fromUtf8<std::wstring>(from.u8string()).c_str(), detail::fromUtf8<std::wstring>(to.u8string()).c_str(), (DWORD)MOVEFILE_REPLACE_EXISTING)) { |
| 4202 | ec = detail::make_system_error(); |
| 4203 | } |
| 4204 | } |
| 4205 | #else |
| 4206 | if (from != to) { |
| 4207 | if (::rename(from.c_str(), to.c_str()) != 0) { |
| 4208 | ec = detail::make_system_error(); |
| 4209 | } |
| 4210 | } |
| 4211 | #endif |
| 4212 | } |
| 4213 | |
| 4214 | GHC_INLINE void resize_file(const path& p, uintmax_t size) |
| 4215 | { |
| 4216 | std::error_code ec; |
| 4217 | resize_file(p, size, ec); |
| 4218 | if (ec) { |
| 4219 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 4220 | } |
| 4221 | } |
| 4222 | |
| 4223 | GHC_INLINE void resize_file(const path& p, uintmax_t size, std::error_code& ec) noexcept |
| 4224 | { |
| 4225 | ec.clear(); |
| 4226 | #ifdef GHC_OS_WINDOWS |
| 4227 | LARGE_INTEGER lisize; |
| 4228 | lisize.QuadPart = static_cast<LONGLONG>(size); |
| 4229 | if(lisize.QuadPart < 0) { |
| 4230 | #ifdef ERROR_FILE_TOO_LARGE |
| 4231 | ec = detail::make_system_error(ERROR_FILE_TOO_LARGE); |
| 4232 | #else |
| 4233 | ec = detail::make_system_error(223); |
| 4234 | #endif |
| 4235 | return; |
| 4236 | } |
| 4237 | std::shared_ptr<void> file(CreateFileW(detail::fromUtf8<std::wstring>(p.u8string()).c_str(), GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL), CloseHandle); |
| 4238 | if (file.get() == INVALID_HANDLE_VALUE) { |
| 4239 | ec = detail::make_system_error(); |
| 4240 | } |
| 4241 | else if (SetFilePointerEx(file.get(), lisize, NULL, FILE_BEGIN) == 0 || SetEndOfFile(file.get()) == 0) { |
| 4242 | ec = detail::make_system_error(); |
| 4243 | } |
| 4244 | #else |
| 4245 | if (::truncate(p.c_str(), static_cast<off_t>(size)) != 0) { |
| 4246 | ec = detail::make_system_error(); |
| 4247 | } |
| 4248 | #endif |
| 4249 | } |
| 4250 | |
| 4251 | GHC_INLINE space_info space(const path& p) |
| 4252 | { |
| 4253 | std::error_code ec; |
| 4254 | auto result = space(p, ec); |
| 4255 | if (ec) { |
| 4256 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 4257 | } |
| 4258 | return result; |
| 4259 | } |
| 4260 | |
| 4261 | GHC_INLINE space_info space(const path& p, std::error_code& ec) noexcept |
| 4262 | { |
| 4263 | ec.clear(); |
| 4264 | #ifdef GHC_OS_WINDOWS |
| 4265 | ULARGE_INTEGER freeBytesAvailableToCaller = {0, 0}; |
| 4266 | ULARGE_INTEGER totalNumberOfBytes = {0, 0}; |
| 4267 | ULARGE_INTEGER totalNumberOfFreeBytes = {0, 0}; |
| 4268 | if (!GetDiskFreeSpaceExW(detail::fromUtf8<std::wstring>(p.u8string()).c_str(), &freeBytesAvailableToCaller, &totalNumberOfBytes, &totalNumberOfFreeBytes)) { |
| 4269 | ec = detail::make_system_error(); |
| 4270 | return {static_cast<uintmax_t>(-1), static_cast<uintmax_t>(-1), static_cast<uintmax_t>(-1)}; |
| 4271 | } |
| 4272 | return {static_cast<uintmax_t>(totalNumberOfBytes.QuadPart), static_cast<uintmax_t>(totalNumberOfFreeBytes.QuadPart), static_cast<uintmax_t>(freeBytesAvailableToCaller.QuadPart)}; |
| 4273 | #elif !defined(__ANDROID__) || __ANDROID_API__ >= 19 |
| 4274 | struct ::statvfs sfs; |
| 4275 | if (::statvfs(p.c_str(), &sfs) != 0) { |
| 4276 | ec = detail::make_system_error(); |
| 4277 | return {static_cast<uintmax_t>(-1), static_cast<uintmax_t>(-1), static_cast<uintmax_t>(-1)}; |
| 4278 | } |
| 4279 | 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)}; |
| 4280 | #else |
| 4281 | (void)p; |
| 4282 | ec = detail::make_error_code(detail::portable_error::not_supported); |
| 4283 | return {static_cast<uintmax_t>(-1), static_cast<uintmax_t>(-1), static_cast<uintmax_t>(-1)}; |
| 4284 | #endif |
| 4285 | } |
| 4286 | |
| 4287 | GHC_INLINE file_status status(const path& p) |
| 4288 | { |
| 4289 | std::error_code ec; |
| 4290 | auto result = status(p, ec); |
| 4291 | if (result.type() == file_type::none) { |
| 4292 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 4293 | } |
| 4294 | return result; |
| 4295 | } |
| 4296 | |
| 4297 | GHC_INLINE file_status status(const path& p, std::error_code& ec) noexcept |
| 4298 | { |
| 4299 | return detail::status_ex(p, ec); |
| 4300 | } |
| 4301 | |
| 4302 | GHC_INLINE bool status_known(file_status s) noexcept |
| 4303 | { |
| 4304 | return s.type() != file_type::none; |
| 4305 | } |
| 4306 | |
| 4307 | GHC_INLINE file_status symlink_status(const path& p) |
| 4308 | { |
| 4309 | std::error_code ec; |
| 4310 | auto result = symlink_status(p, ec); |
| 4311 | if (result.type() == file_type::none) { |
| 4312 | throw filesystem_error(detail::systemErrorText(ec.value()), ec); |
| 4313 | } |
| 4314 | return result; |
| 4315 | } |
| 4316 | |
| 4317 | GHC_INLINE file_status symlink_status(const path& p, std::error_code& ec) noexcept |
| 4318 | { |
| 4319 | return detail::symlink_status_ex(p, ec); |
| 4320 | } |
| 4321 | |
| 4322 | GHC_INLINE path temp_directory_path() |
| 4323 | { |
| 4324 | std::error_code ec; |
| 4325 | path result = temp_directory_path(ec); |
| 4326 | if (ec) { |
| 4327 | throw filesystem_error(detail::systemErrorText(ec.value()), ec); |
| 4328 | } |
| 4329 | return result; |
| 4330 | } |
| 4331 | |
| 4332 | GHC_INLINE path temp_directory_path(std::error_code& ec) noexcept |
| 4333 | { |
| 4334 | ec.clear(); |
| 4335 | #ifdef GHC_OS_WINDOWS |
| 4336 | wchar_t buffer[512]; |
| 4337 | auto rc = GetTempPathW(511, buffer); |
| 4338 | if (!rc || rc > 511) { |
| 4339 | ec = detail::make_system_error(); |
| 4340 | return path(); |
| 4341 | } |
| 4342 | return path(std::wstring(buffer)); |
| 4343 | #else |
| 4344 | static const char* temp_vars[] = {"TMPDIR", "TMP", "TEMP", "TEMPDIR", nullptr}; |
| 4345 | const char* temp_path = nullptr; |
| 4346 | for (auto temp_name = temp_vars; *temp_name != nullptr; ++temp_name) { |
| 4347 | temp_path = std::getenv(*temp_name); |
| 4348 | if (temp_path) { |
| 4349 | return path(temp_path); |
| 4350 | } |
| 4351 | } |
| 4352 | return path("/tmp"); |
| 4353 | #endif |
| 4354 | } |
| 4355 | |
| 4356 | GHC_INLINE path weakly_canonical(const path& p) |
| 4357 | { |
| 4358 | std::error_code ec; |
| 4359 | auto result = weakly_canonical(p, ec); |
| 4360 | if (ec) { |
| 4361 | throw filesystem_error(detail::systemErrorText(ec.value()), p, ec); |
| 4362 | } |
| 4363 | return result; |
| 4364 | } |
| 4365 | |
| 4366 | GHC_INLINE path weakly_canonical(const path& p, std::error_code& ec) noexcept |
| 4367 | { |
| 4368 | path result; |
| 4369 | ec.clear(); |
| 4370 | bool scan = true; |
| 4371 | for (auto pe : p) { |
| 4372 | if (scan) { |
| 4373 | std::error_code tec; |
| 4374 | if (exists(result / pe, tec)) { |
| 4375 | result /= pe; |
| 4376 | } |
| 4377 | else { |
| 4378 | if (ec) { |
| 4379 | return path(); |
| 4380 | } |
| 4381 | scan = false; |
| 4382 | if (!result.empty()) { |
| 4383 | result = canonical(result, ec) / pe; |
| 4384 | if (ec) { |
| 4385 | break; |
| 4386 | } |
| 4387 | } |
| 4388 | else { |
| 4389 | result /= pe; |
| 4390 | } |
| 4391 | } |
| 4392 | } |
| 4393 | else { |
| 4394 | result /= pe; |
| 4395 | } |
| 4396 | } |
| 4397 | if (scan) { |
| 4398 | if (!result.empty()) { |
| 4399 | result = canonical(result, ec); |
| 4400 | } |
| 4401 | } |
| 4402 | return ec ? path() : result.lexically_normal(); |
| 4403 | } |
| 4404 | |
| 4405 | //----------------------------------------------------------------------------- |
| 4406 | // 30.10.11 class file_status |
| 4407 | // 30.10.11.1 constructors and destructor |
| 4408 | GHC_INLINE file_status::file_status() noexcept |
| 4409 | : file_status(file_type::none) |
| 4410 | { |
| 4411 | } |
| 4412 | |
| 4413 | GHC_INLINE file_status::file_status(file_type ft, perms prms) noexcept |
| 4414 | : _type(ft) |
| 4415 | , _perms(prms) |
| 4416 | { |
| 4417 | } |
| 4418 | |
| 4419 | GHC_INLINE file_status::file_status(const file_status& other) noexcept |
| 4420 | : _type(other._type) |
| 4421 | , _perms(other._perms) |
| 4422 | { |
| 4423 | } |
| 4424 | |
| 4425 | GHC_INLINE file_status::file_status(file_status&& other) noexcept |
| 4426 | : _type(other._type) |
| 4427 | , _perms(other._perms) |
| 4428 | { |
| 4429 | } |
| 4430 | |
| 4431 | GHC_INLINE file_status::~file_status() {} |
| 4432 | |
| 4433 | // assignments: |
| 4434 | GHC_INLINE file_status& file_status::operator=(const file_status& rhs) noexcept |
| 4435 | { |
| 4436 | _type = rhs._type; |
| 4437 | _perms = rhs._perms; |
| 4438 | return *this; |
| 4439 | } |
| 4440 | |
| 4441 | GHC_INLINE file_status& file_status::operator=(file_status&& rhs) noexcept |
| 4442 | { |
| 4443 | _type = rhs._type; |
| 4444 | _perms = rhs._perms; |
| 4445 | return *this; |
| 4446 | } |
| 4447 | |
| 4448 | // 30.10.11.3 modifiers |
| 4449 | GHC_INLINE void file_status::type(file_type ft) noexcept |
| 4450 | { |
| 4451 | _type = ft; |
| 4452 | } |
| 4453 | |
| 4454 | GHC_INLINE void file_status::permissions(perms prms) noexcept |
| 4455 | { |
| 4456 | _perms = prms; |
| 4457 | } |
| 4458 | |
| 4459 | // 30.10.11.2 observers |
| 4460 | GHC_INLINE file_type file_status::type() const noexcept |
| 4461 | { |
| 4462 | return _type; |
| 4463 | } |
| 4464 | |
| 4465 | GHC_INLINE perms file_status::permissions() const noexcept |
| 4466 | { |
| 4467 | return _perms; |
| 4468 | } |
| 4469 | |
| 4470 | //----------------------------------------------------------------------------- |
| 4471 | // 30.10.12 class directory_entry |
| 4472 | // 30.10.12.1 constructors and destructor |
| 4473 | // directory_entry::directory_entry() noexcept = default; |
| 4474 | // directory_entry::directory_entry(const directory_entry&) = default; |
| 4475 | // directory_entry::directory_entry(directory_entry&&) noexcept = default; |
| 4476 | GHC_INLINE directory_entry::directory_entry(const filesystem::path& p) |
| 4477 | : _path(p) |
| 4478 | , _file_size(0) |
| 4479 | #ifndef GHC_OS_WINDOWS |
| 4480 | , _hard_link_count(0) |
| 4481 | #endif |
| 4482 | , _last_write_time(0) |
| 4483 | { |
| 4484 | refresh(); |
| 4485 | } |
| 4486 | |
| 4487 | GHC_INLINE directory_entry::directory_entry(const filesystem::path& p, std::error_code& ec) |
| 4488 | : _path(p) |
| 4489 | , _file_size(0) |
| 4490 | #ifndef GHC_OS_WINDOWS |
| 4491 | , _hard_link_count(0) |
| 4492 | #endif |
| 4493 | , _last_write_time(0) |
| 4494 | { |
| 4495 | refresh(ec); |
| 4496 | } |
| 4497 | |
| 4498 | GHC_INLINE directory_entry::~directory_entry() {} |
| 4499 | |
| 4500 | // assignments: |
| 4501 | // directory_entry& directory_entry::operator=(const directory_entry&) = default; |
| 4502 | // directory_entry& directory_entry::operator=(directory_entry&&) noexcept = default; |
| 4503 | |
| 4504 | // 30.10.12.2 directory_entry modifiers |
| 4505 | GHC_INLINE void directory_entry::assign(const filesystem::path& p) |
| 4506 | { |
| 4507 | _path = p; |
| 4508 | refresh(); |
| 4509 | } |
| 4510 | |
| 4511 | GHC_INLINE void directory_entry::assign(const filesystem::path& p, std::error_code& ec) |
| 4512 | { |
| 4513 | _path = p; |
| 4514 | refresh(ec); |
| 4515 | } |
| 4516 | |
| 4517 | GHC_INLINE void directory_entry::replace_filename(const filesystem::path& p) |
| 4518 | { |
| 4519 | _path.replace_filename(p); |
| 4520 | refresh(); |
| 4521 | } |
| 4522 | |
| 4523 | GHC_INLINE void directory_entry::replace_filename(const filesystem::path& p, std::error_code& ec) |
| 4524 | { |
| 4525 | _path.replace_filename(p); |
| 4526 | refresh(ec); |
| 4527 | } |
| 4528 | |
| 4529 | GHC_INLINE void directory_entry::refresh() |
| 4530 | { |
| 4531 | std::error_code ec; |
| 4532 | refresh(ec); |
| 4533 | if (ec) { |
| 4534 | throw filesystem_error(detail::systemErrorText(ec.value()), _path, ec); |
| 4535 | } |
| 4536 | } |
| 4537 | |
| 4538 | GHC_INLINE void directory_entry::refresh(std::error_code& ec) noexcept |
| 4539 | { |
| 4540 | #ifdef GHC_OS_WINDOWS |
| 4541 | _status = detail::status_ex(_path, ec, &_symlink_status, &_file_size, nullptr, &_last_write_time); |
| 4542 | #else |
| 4543 | _status = detail::status_ex(_path, ec, &_symlink_status, &_file_size, &_hard_link_count, &_last_write_time); |
| 4544 | #endif |
| 4545 | } |
| 4546 | |
| 4547 | // 30.10.12.3 directory_entry observers |
| 4548 | GHC_INLINE const filesystem::path& directory_entry::path() const noexcept |
| 4549 | { |
| 4550 | return _path; |
| 4551 | } |
| 4552 | |
| 4553 | GHC_INLINE directory_entry::operator const filesystem::path&() const noexcept |
| 4554 | { |
| 4555 | return _path; |
| 4556 | } |
| 4557 | |
| 4558 | GHC_INLINE bool directory_entry::exists() const |
| 4559 | { |
| 4560 | return filesystem::exists(status()); |
| 4561 | } |
| 4562 | |
| 4563 | GHC_INLINE bool directory_entry::exists(std::error_code& ec) const noexcept |
| 4564 | { |
| 4565 | return filesystem::exists(status(ec)); |
| 4566 | } |
| 4567 | |
| 4568 | GHC_INLINE bool directory_entry::is_block_file() const |
| 4569 | { |
| 4570 | return filesystem::is_block_file(status()); |
| 4571 | } |
| 4572 | GHC_INLINE bool directory_entry::is_block_file(std::error_code& ec) const noexcept |
| 4573 | { |
| 4574 | return filesystem::is_block_file(status(ec)); |
| 4575 | } |
| 4576 | |
| 4577 | GHC_INLINE bool directory_entry::is_character_file() const |
| 4578 | { |
| 4579 | return filesystem::is_character_file(status()); |
| 4580 | } |
| 4581 | |
| 4582 | GHC_INLINE bool directory_entry::is_character_file(std::error_code& ec) const noexcept |
| 4583 | { |
| 4584 | return filesystem::is_character_file(status(ec)); |
| 4585 | } |
| 4586 | |
| 4587 | GHC_INLINE bool directory_entry::is_directory() const |
| 4588 | { |
| 4589 | return filesystem::is_directory(status()); |
| 4590 | } |
| 4591 | |
| 4592 | GHC_INLINE bool directory_entry::is_directory(std::error_code& ec) const noexcept |
| 4593 | { |
| 4594 | return filesystem::is_directory(status(ec)); |
| 4595 | } |
| 4596 | |
| 4597 | GHC_INLINE bool directory_entry::is_fifo() const |
| 4598 | { |
| 4599 | return filesystem::is_fifo(status()); |
| 4600 | } |
| 4601 | |
| 4602 | GHC_INLINE bool directory_entry::is_fifo(std::error_code& ec) const noexcept |
| 4603 | { |
| 4604 | return filesystem::is_fifo(status(ec)); |
| 4605 | } |
| 4606 | |
| 4607 | GHC_INLINE bool directory_entry::is_other() const |
| 4608 | { |
| 4609 | return filesystem::is_other(status()); |
| 4610 | } |
| 4611 | |
| 4612 | GHC_INLINE bool directory_entry::is_other(std::error_code& ec) const noexcept |
| 4613 | { |
| 4614 | return filesystem::is_other(status(ec)); |
| 4615 | } |
| 4616 | |
| 4617 | GHC_INLINE bool directory_entry::is_regular_file() const |
| 4618 | { |
| 4619 | return filesystem::is_regular_file(status()); |
| 4620 | } |
| 4621 | |
| 4622 | GHC_INLINE bool directory_entry::is_regular_file(std::error_code& ec) const noexcept |
| 4623 | { |
| 4624 | return filesystem::is_regular_file(status(ec)); |
| 4625 | } |
| 4626 | |
| 4627 | GHC_INLINE bool directory_entry::is_socket() const |
| 4628 | { |
| 4629 | return filesystem::is_socket(status()); |
| 4630 | } |
| 4631 | |
| 4632 | GHC_INLINE bool directory_entry::is_socket(std::error_code& ec) const noexcept |
| 4633 | { |
| 4634 | return filesystem::is_socket(status(ec)); |
| 4635 | } |
| 4636 | |
| 4637 | GHC_INLINE bool directory_entry::is_symlink() const |
| 4638 | { |
| 4639 | return filesystem::is_symlink(symlink_status()); |
| 4640 | } |
| 4641 | |
| 4642 | GHC_INLINE bool directory_entry::is_symlink(std::error_code& ec) const noexcept |
| 4643 | { |
| 4644 | return filesystem::is_symlink(symlink_status(ec)); |
| 4645 | } |
| 4646 | |
| 4647 | GHC_INLINE uintmax_t directory_entry::file_size() const |
| 4648 | { |
| 4649 | if (_status.type() != file_type::none) { |
| 4650 | return _file_size; |
| 4651 | } |
| 4652 | return filesystem::file_size(path()); |
| 4653 | } |
| 4654 | |
| 4655 | GHC_INLINE uintmax_t directory_entry::file_size(std::error_code& ec) const noexcept |
| 4656 | { |
| 4657 | if (_status.type() != file_type::none) { |
| 4658 | ec.clear(); |
| 4659 | return _file_size; |
| 4660 | } |
| 4661 | return filesystem::file_size(path(), ec); |
| 4662 | } |
| 4663 | |
| 4664 | GHC_INLINE uintmax_t directory_entry::hard_link_count() const |
| 4665 | { |
| 4666 | #ifndef GHC_OS_WINDOWS |
| 4667 | if (_status.type() != file_type::none) { |
| 4668 | return _hard_link_count; |
| 4669 | } |
| 4670 | #endif |
| 4671 | return filesystem::hard_link_count(path()); |
| 4672 | } |
| 4673 | |
| 4674 | GHC_INLINE uintmax_t directory_entry::hard_link_count(std::error_code& ec) const noexcept |
| 4675 | { |
| 4676 | #ifndef GHC_OS_WINDOWS |
| 4677 | if (_status.type() != file_type::none) { |
| 4678 | ec.clear(); |
| 4679 | return _hard_link_count; |
| 4680 | } |
| 4681 | #endif |
| 4682 | return filesystem::hard_link_count(path(), ec); |
| 4683 | } |
| 4684 | |
| 4685 | GHC_INLINE file_time_type directory_entry::last_write_time() const |
| 4686 | { |
| 4687 | if (_status.type() != file_type::none) { |
| 4688 | return std::chrono::system_clock::from_time_t(_last_write_time); |
| 4689 | } |
| 4690 | return filesystem::last_write_time(path()); |
| 4691 | } |
| 4692 | |
| 4693 | GHC_INLINE file_time_type directory_entry::last_write_time(std::error_code& ec) const noexcept |
| 4694 | { |
| 4695 | if (_status.type() != file_type::none) { |
| 4696 | ec.clear(); |
| 4697 | return std::chrono::system_clock::from_time_t(_last_write_time); |
| 4698 | } |
| 4699 | return filesystem::last_write_time(path(), ec); |
| 4700 | } |
| 4701 | |
| 4702 | GHC_INLINE file_status directory_entry::status() const |
| 4703 | { |
| 4704 | if (_status.type() != file_type::none) { |
| 4705 | return _status; |
| 4706 | } |
| 4707 | return filesystem::status(path()); |
| 4708 | } |
| 4709 | |
| 4710 | GHC_INLINE file_status directory_entry::status(std::error_code& ec) const noexcept |
| 4711 | { |
| 4712 | if (_status.type() != file_type::none) { |
| 4713 | ec.clear(); |
| 4714 | return _status; |
| 4715 | } |
| 4716 | return filesystem::status(path(), ec); |
| 4717 | } |
| 4718 | |
| 4719 | GHC_INLINE file_status directory_entry::symlink_status() const |
| 4720 | { |
| 4721 | if (_symlink_status.type() != file_type::none) { |
| 4722 | return _symlink_status; |
| 4723 | } |
| 4724 | return filesystem::symlink_status(path()); |
| 4725 | } |
| 4726 | |
| 4727 | GHC_INLINE file_status directory_entry::symlink_status(std::error_code& ec) const noexcept |
| 4728 | { |
| 4729 | if (_symlink_status.type() != file_type::none) { |
| 4730 | ec.clear(); |
| 4731 | return _symlink_status; |
| 4732 | } |
| 4733 | return filesystem::symlink_status(path(), ec); |
| 4734 | } |
| 4735 | |
| 4736 | GHC_INLINE bool directory_entry::operator<(const directory_entry& rhs) const noexcept |
| 4737 | { |
| 4738 | return _path < rhs._path; |
| 4739 | } |
| 4740 | |
| 4741 | GHC_INLINE bool directory_entry::operator==(const directory_entry& rhs) const noexcept |
| 4742 | { |
| 4743 | return _path == rhs._path; |
| 4744 | } |
| 4745 | |
| 4746 | GHC_INLINE bool directory_entry::operator!=(const directory_entry& rhs) const noexcept |
| 4747 | { |
| 4748 | return _path != rhs._path; |
| 4749 | } |
| 4750 | |
| 4751 | GHC_INLINE bool directory_entry::operator<=(const directory_entry& rhs) const noexcept |
| 4752 | { |
| 4753 | return _path <= rhs._path; |
| 4754 | } |
| 4755 | |
| 4756 | GHC_INLINE bool directory_entry::operator>(const directory_entry& rhs) const noexcept |
| 4757 | { |
| 4758 | return _path > rhs._path; |
| 4759 | } |
| 4760 | |
| 4761 | GHC_INLINE bool directory_entry::operator>=(const directory_entry& rhs) const noexcept |
| 4762 | { |
| 4763 | return _path >= rhs._path; |
| 4764 | } |
| 4765 | |
| 4766 | //----------------------------------------------------------------------------- |
| 4767 | // 30.10.13 class directory_iterator |
| 4768 | |
| 4769 | #ifdef GHC_OS_WINDOWS |
| 4770 | class directory_iterator::impl |
| 4771 | { |
| 4772 | public: |
| 4773 | impl(const path& p, directory_options options) |
| 4774 | : _base(p) |
| 4775 | , _options(options) |
| 4776 | , _dirHandle(INVALID_HANDLE_VALUE) |
| 4777 | { |
| 4778 | if (!_base.empty()) { |
| 4779 | ZeroMemory(&_findData, sizeof(WIN32_FIND_DATAW)); |
| 4780 | if ((_dirHandle = FindFirstFileW(detail::fromUtf8<std::wstring>((_base / "*").u8string()).c_str(), &_findData)) != INVALID_HANDLE_VALUE) { |
| 4781 | if (std::wstring(_findData.cFileName) == L"." || std::wstring(_findData.cFileName) == L"..") { |
| 4782 | increment(_ec); |
| 4783 | } |
| 4784 | else { |
| 4785 | _current = _base / std::wstring(_findData.cFileName); |
| 4786 | copyToDirEntry(_ec); |
| 4787 | } |
| 4788 | } |
| 4789 | else { |
| 4790 | auto error = ::GetLastError(); |
| 4791 | _base = filesystem::path(); |
| 4792 | if (error != ERROR_ACCESS_DENIED || (options & directory_options::skip_permission_denied) == directory_options::none) { |
| 4793 | _ec = detail::make_system_error(); |
| 4794 | } |
| 4795 | } |
| 4796 | } |
| 4797 | } |
| 4798 | impl(const impl& other) = delete; |
| 4799 | ~impl() |
| 4800 | { |
| 4801 | if (_dirHandle != INVALID_HANDLE_VALUE) { |
| 4802 | FindClose(_dirHandle); |
| 4803 | _dirHandle = INVALID_HANDLE_VALUE; |
| 4804 | } |
| 4805 | } |
| 4806 | void increment(std::error_code& ec) |
| 4807 | { |
| 4808 | if (_dirHandle != INVALID_HANDLE_VALUE) { |
| 4809 | do { |
| 4810 | if (FindNextFileW(_dirHandle, &_findData)) { |
| 4811 | _current = _base; |
| 4812 | try { |
| 4813 | _current.append_name(detail::toUtf8(_findData.cFileName).c_str()); |
| 4814 | } |
| 4815 | catch(filesystem_error& fe) { |
| 4816 | ec = fe.code(); |
| 4817 | return; |
| 4818 | } |
| 4819 | copyToDirEntry(ec); |
| 4820 | } |
| 4821 | else { |
| 4822 | auto err = ::GetLastError(); |
| 4823 | if(err != ERROR_NO_MORE_FILES) { |
| 4824 | _ec = ec = detail::make_system_error(err); |
| 4825 | } |
| 4826 | FindClose(_dirHandle); |
| 4827 | _dirHandle = INVALID_HANDLE_VALUE; |
| 4828 | _current = filesystem::path(); |
| 4829 | break; |
| 4830 | } |
| 4831 | } while (std::wstring(_findData.cFileName) == L"." || std::wstring(_findData.cFileName) == L".."); |
| 4832 | } |
| 4833 | else { |
| 4834 | ec = _ec; |
| 4835 | } |
| 4836 | } |
| 4837 | void copyToDirEntry(std::error_code& ec) |
| 4838 | { |
| 4839 | _dir_entry._path = _current; |
| 4840 | if (_findData.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) { |
| 4841 | _dir_entry._status = detail::status_ex(_current, ec, &_dir_entry._symlink_status, &_dir_entry._file_size, nullptr, &_dir_entry._last_write_time); |
| 4842 | } |
| 4843 | else { |
| 4844 | _dir_entry._status = detail::status_from_INFO(_current, &_findData, ec, &_dir_entry._file_size, &_dir_entry._last_write_time); |
| 4845 | _dir_entry._symlink_status = _dir_entry._status; |
| 4846 | } |
| 4847 | if (ec) { |
| 4848 | if (_dir_entry._status.type() != file_type::none && _dir_entry._symlink_status.type() != file_type::none) { |
| 4849 | ec.clear(); |
| 4850 | } |
| 4851 | else { |
| 4852 | _dir_entry._file_size = static_cast<uintmax_t>(-1); |
| 4853 | _dir_entry._last_write_time = 0; |
| 4854 | } |
| 4855 | } |
| 4856 | } |
| 4857 | path _base; |
| 4858 | directory_options _options; |
| 4859 | WIN32_FIND_DATAW _findData; |
| 4860 | HANDLE _dirHandle; |
| 4861 | path _current; |
| 4862 | directory_entry _dir_entry; |
| 4863 | std::error_code _ec; |
| 4864 | }; |
| 4865 | #else |
| 4866 | // POSIX implementation |
| 4867 | class directory_iterator::impl |
| 4868 | { |
| 4869 | public: |
| 4870 | impl(const path& path, directory_options options) |
| 4871 | : _base(path) |
| 4872 | , _options(options) |
| 4873 | , _dir(nullptr) |
| 4874 | , _entry(nullptr) |
| 4875 | { |
| 4876 | if (!path.empty()) { |
| 4877 | _dir = ::opendir(path.native().c_str()); |
| 4878 | } |
| 4879 | if (!path.empty()) { |
| 4880 | if (!_dir) { |
| 4881 | auto error = errno; |
| 4882 | _base = filesystem::path(); |
| 4883 | if (error != EACCES || (options & directory_options::skip_permission_denied) == directory_options::none) { |
| 4884 | _ec = detail::make_system_error(); |
| 4885 | } |
| 4886 | } |
| 4887 | else { |
| 4888 | increment(_ec); |
| 4889 | } |
| 4890 | } |
| 4891 | } |
| 4892 | impl(const impl& other) = delete; |
| 4893 | ~impl() |
| 4894 | { |
| 4895 | if (_dir) { |
| 4896 | ::closedir(_dir); |
| 4897 | } |
| 4898 | } |
| 4899 | void increment(std::error_code& ec) |
| 4900 | { |
| 4901 | if (_dir) { |
| 4902 | do { |
| 4903 | errno = 0; |
| 4904 | _entry = readdir(_dir); |
| 4905 | if (_entry) { |
| 4906 | _current = _base; |
| 4907 | _current.append_name(_entry->d_name); |
| 4908 | _dir_entry = directory_entry(_current, ec); |
| 4909 | } |
| 4910 | else { |
| 4911 | ::closedir(_dir); |
| 4912 | _dir = nullptr; |
| 4913 | _current = path(); |
| 4914 | if (errno) { |
| 4915 | ec = detail::make_system_error(); |
| 4916 | } |
| 4917 | break; |
| 4918 | } |
| 4919 | } while (std::strcmp(_entry->d_name, ".") == 0 || std::strcmp(_entry->d_name, "..") == 0); |
| 4920 | } |
| 4921 | } |
| 4922 | path _base; |
| 4923 | directory_options _options; |
| 4924 | path _current; |
| 4925 | DIR* _dir; |
| 4926 | struct ::dirent* _entry; |
| 4927 | directory_entry _dir_entry; |
| 4928 | std::error_code _ec; |
| 4929 | }; |
| 4930 | #endif |
| 4931 | |
| 4932 | // 30.10.13.1 member functions |
| 4933 | GHC_INLINE directory_iterator::directory_iterator() noexcept |
| 4934 | : _impl(new impl(path(), directory_options::none)) |
| 4935 | { |
| 4936 | } |
| 4937 | |
| 4938 | GHC_INLINE directory_iterator::directory_iterator(const path& p) |
| 4939 | : _impl(new impl(p, directory_options::none)) |
| 4940 | { |
| 4941 | if (_impl->_ec) { |
| 4942 | throw filesystem_error(detail::systemErrorText(_impl->_ec.value()), p, _impl->_ec); |
| 4943 | } |
| 4944 | _impl->_ec.clear(); |
| 4945 | } |
| 4946 | |
| 4947 | GHC_INLINE directory_iterator::directory_iterator(const path& p, directory_options options) |
| 4948 | : _impl(new impl(p, options)) |
| 4949 | { |
| 4950 | if (_impl->_ec) { |
| 4951 | throw filesystem_error(detail::systemErrorText(_impl->_ec.value()), p, _impl->_ec); |
| 4952 | } |
| 4953 | } |
| 4954 | |
| 4955 | GHC_INLINE directory_iterator::directory_iterator(const path& p, std::error_code& ec) noexcept |
| 4956 | : _impl(new impl(p, directory_options::none)) |
| 4957 | { |
| 4958 | if (_impl->_ec) { |
| 4959 | ec = _impl->_ec; |
| 4960 | } |
| 4961 | } |
| 4962 | |
| 4963 | GHC_INLINE directory_iterator::directory_iterator(const path& p, directory_options options, std::error_code& ec) noexcept |
| 4964 | : _impl(new impl(p, options)) |
| 4965 | { |
| 4966 | if (_impl->_ec) { |
| 4967 | ec = _impl->_ec; |
| 4968 | } |
| 4969 | } |
| 4970 | |
| 4971 | GHC_INLINE directory_iterator::directory_iterator(const directory_iterator& rhs) |
| 4972 | : _impl(rhs._impl) |
| 4973 | { |
| 4974 | } |
| 4975 | |
| 4976 | GHC_INLINE directory_iterator::directory_iterator(directory_iterator&& rhs) noexcept |
| 4977 | : _impl(std::move(rhs._impl)) |
| 4978 | { |
| 4979 | } |
| 4980 | |
| 4981 | GHC_INLINE directory_iterator::~directory_iterator() {} |
| 4982 | |
| 4983 | GHC_INLINE directory_iterator& directory_iterator::operator=(const directory_iterator& rhs) |
| 4984 | { |
| 4985 | _impl = rhs._impl; |
| 4986 | return *this; |
| 4987 | } |
| 4988 | |
| 4989 | GHC_INLINE directory_iterator& directory_iterator::operator=(directory_iterator&& rhs) noexcept |
| 4990 | { |
| 4991 | _impl = std::move(rhs._impl); |
| 4992 | return *this; |
| 4993 | } |
| 4994 | |
| 4995 | GHC_INLINE const directory_entry& directory_iterator::operator*() const |
| 4996 | { |
| 4997 | return _impl->_dir_entry; |
| 4998 | } |
| 4999 | |
| 5000 | GHC_INLINE const directory_entry* directory_iterator::operator->() const |
| 5001 | { |
| 5002 | return &_impl->_dir_entry; |
| 5003 | } |
| 5004 | |
| 5005 | GHC_INLINE directory_iterator& directory_iterator::operator++() |
| 5006 | { |
| 5007 | std::error_code ec; |
| 5008 | _impl->increment(ec); |
| 5009 | if (ec) { |
| 5010 | throw filesystem_error(detail::systemErrorText(ec.value()), _impl->_current, ec); |
| 5011 | } |
| 5012 | return *this; |
| 5013 | } |
| 5014 | |
| 5015 | GHC_INLINE directory_iterator& directory_iterator::increment(std::error_code& ec) noexcept |
| 5016 | { |
| 5017 | _impl->increment(ec); |
| 5018 | return *this; |
| 5019 | } |
| 5020 | |
| 5021 | GHC_INLINE bool directory_iterator::operator==(const directory_iterator& rhs) const |
| 5022 | { |
| 5023 | return _impl->_current == rhs._impl->_current; |
| 5024 | } |
| 5025 | |
| 5026 | GHC_INLINE bool directory_iterator::operator!=(const directory_iterator& rhs) const |
| 5027 | { |
| 5028 | return _impl->_current != rhs._impl->_current; |
| 5029 | } |
| 5030 | |
| 5031 | // 30.10.13.2 directory_iterator non-member functions |
| 5032 | |
| 5033 | GHC_INLINE directory_iterator begin(directory_iterator iter) noexcept |
| 5034 | { |
| 5035 | return iter; |
| 5036 | } |
| 5037 | |
| 5038 | GHC_INLINE directory_iterator end(const directory_iterator&) noexcept |
| 5039 | { |
| 5040 | return directory_iterator(); |
| 5041 | } |
| 5042 | |
| 5043 | //----------------------------------------------------------------------------- |
| 5044 | // 30.10.14 class recursive_directory_iterator |
| 5045 | |
| 5046 | GHC_INLINE recursive_directory_iterator::recursive_directory_iterator() noexcept |
| 5047 | : _impl(new recursive_directory_iterator_impl(directory_options::none, true)) |
| 5048 | { |
| 5049 | _impl->_dir_iter_stack.push(directory_iterator()); |
| 5050 | } |
| 5051 | |
| 5052 | GHC_INLINE recursive_directory_iterator::recursive_directory_iterator(const path& p) |
| 5053 | : _impl(new recursive_directory_iterator_impl(directory_options::none, true)) |
| 5054 | { |
| 5055 | _impl->_dir_iter_stack.push(directory_iterator(p)); |
| 5056 | } |
| 5057 | |
| 5058 | GHC_INLINE recursive_directory_iterator::recursive_directory_iterator(const path& p, directory_options options) |
| 5059 | : _impl(new recursive_directory_iterator_impl(options, true)) |
| 5060 | { |
| 5061 | _impl->_dir_iter_stack.push(directory_iterator(p, options)); |
| 5062 | } |
| 5063 | |
| 5064 | GHC_INLINE recursive_directory_iterator::recursive_directory_iterator(const path& p, directory_options options, std::error_code& ec) noexcept |
| 5065 | : _impl(new recursive_directory_iterator_impl(options, true)) |
| 5066 | { |
| 5067 | _impl->_dir_iter_stack.push(directory_iterator(p, options, ec)); |
| 5068 | } |
| 5069 | |
| 5070 | GHC_INLINE recursive_directory_iterator::recursive_directory_iterator(const path& p, std::error_code& ec) noexcept |
| 5071 | : _impl(new recursive_directory_iterator_impl(directory_options::none, true)) |
| 5072 | { |
| 5073 | _impl->_dir_iter_stack.push(directory_iterator(p, ec)); |
| 5074 | } |
| 5075 | |
| 5076 | GHC_INLINE recursive_directory_iterator::recursive_directory_iterator(const recursive_directory_iterator& rhs) |
| 5077 | : _impl(rhs._impl) |
| 5078 | { |
| 5079 | } |
| 5080 | |
| 5081 | GHC_INLINE recursive_directory_iterator::recursive_directory_iterator(recursive_directory_iterator&& rhs) noexcept |
| 5082 | : _impl(std::move(rhs._impl)) |
| 5083 | { |
| 5084 | } |
| 5085 | |
| 5086 | GHC_INLINE recursive_directory_iterator::~recursive_directory_iterator() {} |
| 5087 | |
| 5088 | // 30.10.14.1 observers |
| 5089 | GHC_INLINE directory_options recursive_directory_iterator::options() const |
| 5090 | { |
| 5091 | return _impl->_options; |
| 5092 | } |
| 5093 | |
| 5094 | GHC_INLINE int recursive_directory_iterator::depth() const |
| 5095 | { |
| 5096 | return static_cast<int>(_impl->_dir_iter_stack.size() - 1); |
| 5097 | } |
| 5098 | |
| 5099 | GHC_INLINE bool recursive_directory_iterator::recursion_pending() const |
| 5100 | { |
| 5101 | return _impl->_recursion_pending; |
| 5102 | } |
| 5103 | |
| 5104 | GHC_INLINE const directory_entry& recursive_directory_iterator::operator*() const |
| 5105 | { |
| 5106 | return *(_impl->_dir_iter_stack.top()); |
| 5107 | } |
| 5108 | |
| 5109 | GHC_INLINE const directory_entry* recursive_directory_iterator::operator->() const |
| 5110 | { |
| 5111 | return &(*(_impl->_dir_iter_stack.top())); |
| 5112 | } |
| 5113 | |
| 5114 | // 30.10.14.1 modifiers recursive_directory_iterator& |
| 5115 | GHC_INLINE recursive_directory_iterator& recursive_directory_iterator::operator=(const recursive_directory_iterator& rhs) |
| 5116 | { |
| 5117 | _impl = rhs._impl; |
| 5118 | return *this; |
| 5119 | } |
| 5120 | |
| 5121 | GHC_INLINE recursive_directory_iterator& recursive_directory_iterator::operator=(recursive_directory_iterator&& rhs) noexcept |
| 5122 | { |
| 5123 | _impl = std::move(rhs._impl); |
| 5124 | return *this; |
| 5125 | } |
| 5126 | |
| 5127 | GHC_INLINE recursive_directory_iterator& recursive_directory_iterator::operator++() |
| 5128 | { |
| 5129 | std::error_code ec; |
| 5130 | increment(ec); |
| 5131 | if (ec) { |
| 5132 | throw filesystem_error(detail::systemErrorText(ec.value()), _impl->_dir_iter_stack.empty() ? path() : _impl->_dir_iter_stack.top()->path(), ec); |
| 5133 | } |
| 5134 | return *this; |
| 5135 | } |
| 5136 | |
| 5137 | GHC_INLINE recursive_directory_iterator& recursive_directory_iterator::increment(std::error_code& ec) noexcept |
| 5138 | { |
| 5139 | if (recursion_pending() && is_directory((*this)->status()) && (!is_symlink((*this)->symlink_status()) || (options() & directory_options::follow_directory_symlink) != directory_options::none)) { |
| 5140 | _impl->_dir_iter_stack.push(directory_iterator((*this)->path(), _impl->_options, ec)); |
| 5141 | } |
| 5142 | else { |
| 5143 | _impl->_dir_iter_stack.top().increment(ec); |
| 5144 | } |
| 5145 | if (!ec) { |
| 5146 | while (depth() && _impl->_dir_iter_stack.top() == directory_iterator()) { |
| 5147 | _impl->_dir_iter_stack.pop(); |
| 5148 | _impl->_dir_iter_stack.top().increment(ec); |
| 5149 | } |
| 5150 | } |
| 5151 | else if (!_impl->_dir_iter_stack.empty()) { |
| 5152 | _impl->_dir_iter_stack.pop(); |
| 5153 | } |
| 5154 | _impl->_recursion_pending = true; |
| 5155 | return *this; |
| 5156 | } |
| 5157 | |
| 5158 | GHC_INLINE void recursive_directory_iterator::pop() |
| 5159 | { |
| 5160 | std::error_code ec; |
| 5161 | pop(ec); |
| 5162 | if (ec) { |
| 5163 | throw filesystem_error(detail::systemErrorText(ec.value()), _impl->_dir_iter_stack.empty() ? path() : _impl->_dir_iter_stack.top()->path(), ec); |
| 5164 | } |
| 5165 | } |
| 5166 | |
| 5167 | GHC_INLINE void recursive_directory_iterator::pop(std::error_code& ec) |
| 5168 | { |
| 5169 | if (depth() == 0) { |
| 5170 | *this = recursive_directory_iterator(); |
| 5171 | } |
| 5172 | else { |
| 5173 | do { |
| 5174 | _impl->_dir_iter_stack.pop(); |
| 5175 | _impl->_dir_iter_stack.top().increment(ec); |
| 5176 | } while (depth() && _impl->_dir_iter_stack.top() == directory_iterator()); |
| 5177 | } |
| 5178 | } |
| 5179 | |
| 5180 | GHC_INLINE void recursive_directory_iterator::disable_recursion_pending() |
| 5181 | { |
| 5182 | _impl->_recursion_pending = false; |
| 5183 | } |
| 5184 | |
| 5185 | // other members as required by 27.2.3, input iterators |
| 5186 | GHC_INLINE bool recursive_directory_iterator::operator==(const recursive_directory_iterator& rhs) const |
| 5187 | { |
| 5188 | return _impl->_dir_iter_stack.top() == rhs._impl->_dir_iter_stack.top(); |
| 5189 | } |
| 5190 | |
| 5191 | GHC_INLINE bool recursive_directory_iterator::operator!=(const recursive_directory_iterator& rhs) const |
| 5192 | { |
| 5193 | return _impl->_dir_iter_stack.top() != rhs._impl->_dir_iter_stack.top(); |
| 5194 | } |
| 5195 | |
| 5196 | // 30.10.14.2 directory_iterator non-member functions |
| 5197 | GHC_INLINE recursive_directory_iterator begin(recursive_directory_iterator iter) noexcept |
| 5198 | { |
| 5199 | return iter; |
| 5200 | } |
| 5201 | |
| 5202 | GHC_INLINE recursive_directory_iterator end(const recursive_directory_iterator&) noexcept |
| 5203 | { |
| 5204 | return recursive_directory_iterator(); |
| 5205 | } |
| 5206 | |
| 5207 | #endif // GHC_EXPAND_IMPL |
| 5208 | |
| 5209 | } // namespace filesystem |
| 5210 | } // namespace ghc |
| 5211 | |
| 5212 | // cleanup some macros |
| 5213 | #undef GHC_INLINE |
| 5214 | #undef GHC_EXPAND_IMPL |
| 5215 | |
| 5216 | #endif // GHC_FILESYSTEM_H |