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30 #include "gtest/internal/gtest-filepath.h"
34 #include "gtest/gtest-message.h"
35 #include "gtest/internal/gtest-port.h"
37 #if GTEST_OS_WINDOWS_MOBILE
39 #elif GTEST_OS_WINDOWS
45 #include <climits> // Some Linux distributions define PATH_MAX here.
46 #endif // GTEST_OS_WINDOWS_MOBILE
48 #include "gtest/internal/gtest-string.h"
51 #define GTEST_PATH_MAX_ _MAX_PATH
52 #elif defined(PATH_MAX)
53 #define GTEST_PATH_MAX_ PATH_MAX
54 #elif defined(_XOPEN_PATH_MAX)
55 #define GTEST_PATH_MAX_ _XOPEN_PATH_MAX
57 #define GTEST_PATH_MAX_ _POSIX_PATH_MAX
58 #endif // GTEST_OS_WINDOWS
64 // On Windows, '\\' is the standard path separator, but many tools and the
65 // Windows API also accept '/' as an alternate path separator. Unless otherwise
66 // noted, a file path can contain either kind of path separators, or a mixture
68 const char kPathSeparator = '\\';
69 const char kAlternatePathSeparator = '/';
70 const char kAlternatePathSeparatorString[] = "/";
71 #if GTEST_OS_WINDOWS_MOBILE
72 // Windows CE doesn't have a current directory. You should not use
73 // the current directory in tests on Windows CE, but this at least
74 // provides a reasonable fallback.
75 const char kCurrentDirectoryString[] = "\\";
76 // Windows CE doesn't define INVALID_FILE_ATTRIBUTES
77 const DWORD kInvalidFileAttributes = 0xffffffff;
79 const char kCurrentDirectoryString[] = ".\\";
80 #endif // GTEST_OS_WINDOWS_MOBILE
82 const char kPathSeparator = '/';
83 const char kCurrentDirectoryString[] = "./";
84 #endif // GTEST_OS_WINDOWS
86 // Returns whether the given character is a valid path separator.
87 static bool IsPathSeparator(char c) {
88 #if GTEST_HAS_ALT_PATH_SEP_
89 return (c == kPathSeparator) || (c == kAlternatePathSeparator);
91 return c == kPathSeparator;
95 // Returns the current working directory, or "" if unsuccessful.
96 FilePath FilePath::GetCurrentDir() {
97 #if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE || \
98 GTEST_OS_WINDOWS_RT || GTEST_OS_ESP8266 || GTEST_OS_ESP32 || \
100 // These platforms do not have a current directory, so we just return
101 // something reasonable.
102 return FilePath(kCurrentDirectoryString);
103 #elif GTEST_OS_WINDOWS
104 char cwd[GTEST_PATH_MAX_ + 1] = {'\0'};
105 return FilePath(_getcwd(cwd, sizeof(cwd)) == nullptr ? "" : cwd);
107 char cwd[GTEST_PATH_MAX_ + 1] = {'\0'};
108 char* result = getcwd(cwd, sizeof(cwd));
110 // getcwd will likely fail in NaCl due to the sandbox, so return something
111 // reasonable. The user may have provided a shim implementation for getcwd,
112 // however, so fallback only when failure is detected.
113 return FilePath(result == nullptr ? kCurrentDirectoryString : cwd);
114 #endif // GTEST_OS_NACL
115 return FilePath(result == nullptr ? "" : cwd);
116 #endif // GTEST_OS_WINDOWS_MOBILE
119 // Returns a copy of the FilePath with the case-insensitive extension removed.
120 // Example: FilePath("dir/file.exe").RemoveExtension("EXE") returns
121 // FilePath("dir/file"). If a case-insensitive extension is not
122 // found, returns a copy of the original FilePath.
123 FilePath FilePath::RemoveExtension(const char* extension) const {
124 const std::string dot_extension = std::string(".") + extension;
125 if (String::EndsWithCaseInsensitive(pathname_, dot_extension)) {
127 pathname_.substr(0, pathname_.length() - dot_extension.length()));
132 // Returns a pointer to the last occurrence of a valid path separator in
133 // the FilePath. On Windows, for example, both '/' and '\' are valid path
134 // separators. Returns NULL if no path separator was found.
135 const char* FilePath::FindLastPathSeparator() const {
136 const char* const last_sep = strrchr(c_str(), kPathSeparator);
137 #if GTEST_HAS_ALT_PATH_SEP_
138 const char* const last_alt_sep = strrchr(c_str(), kAlternatePathSeparator);
139 // Comparing two pointers of which only one is NULL is undefined.
140 if (last_alt_sep != nullptr &&
141 (last_sep == nullptr || last_alt_sep > last_sep)) {
148 // Returns a copy of the FilePath with the directory part removed.
149 // Example: FilePath("path/to/file").RemoveDirectoryName() returns
150 // FilePath("file"). If there is no directory part ("just_a_file"), it returns
151 // the FilePath unmodified. If there is no file part ("just_a_dir/") it
152 // returns an empty FilePath ("").
153 // On Windows platform, '\' is the path separator, otherwise it is '/'.
154 FilePath FilePath::RemoveDirectoryName() const {
155 const char* const last_sep = FindLastPathSeparator();
156 return last_sep ? FilePath(last_sep + 1) : *this;
159 // RemoveFileName returns the directory path with the filename removed.
160 // Example: FilePath("path/to/file").RemoveFileName() returns "path/to/".
161 // If the FilePath is "a_file" or "/a_file", RemoveFileName returns
162 // FilePath("./") or, on Windows, FilePath(".\\"). If the filepath does
163 // not have a file, like "just/a/dir/", it returns the FilePath unmodified.
164 // On Windows platform, '\' is the path separator, otherwise it is '/'.
165 FilePath FilePath::RemoveFileName() const {
166 const char* const last_sep = FindLastPathSeparator();
169 dir = std::string(c_str(), static_cast<size_t>(last_sep + 1 - c_str()));
171 dir = kCurrentDirectoryString;
173 return FilePath(dir);
176 // Helper functions for naming files in a directory for xml output.
178 // Given directory = "dir", base_name = "test", number = 0,
179 // extension = "xml", returns "dir/test.xml". If number is greater
180 // than zero (e.g., 12), returns "dir/test_12.xml".
181 // On Windows platform, uses \ as the separator rather than /.
182 FilePath FilePath::MakeFileName(const FilePath& directory,
183 const FilePath& base_name, int number,
184 const char* extension) {
187 file = base_name.string() + "." + extension;
190 base_name.string() + "_" + StreamableToString(number) + "." + extension;
192 return ConcatPaths(directory, FilePath(file));
195 // Given directory = "dir", relative_path = "test.xml", returns "dir/test.xml".
196 // On Windows, uses \ as the separator rather than /.
197 FilePath FilePath::ConcatPaths(const FilePath& directory,
198 const FilePath& relative_path) {
199 if (directory.IsEmpty()) return relative_path;
200 const FilePath dir(directory.RemoveTrailingPathSeparator());
201 return FilePath(dir.string() + kPathSeparator + relative_path.string());
204 // Returns true if pathname describes something findable in the file-system,
205 // either a file, directory, or whatever.
206 bool FilePath::FileOrDirectoryExists() const {
207 #if GTEST_OS_WINDOWS_MOBILE
208 LPCWSTR unicode = String::AnsiToUtf16(pathname_.c_str());
209 const DWORD attributes = GetFileAttributes(unicode);
211 return attributes != kInvalidFileAttributes;
213 posix::StatStruct file_stat{};
214 return posix::Stat(pathname_.c_str(), &file_stat) == 0;
215 #endif // GTEST_OS_WINDOWS_MOBILE
218 // Returns true if pathname describes a directory in the file-system
220 bool FilePath::DirectoryExists() const {
223 // Don't strip off trailing separator if path is a root directory on
224 // Windows (like "C:\\").
225 const FilePath& path(IsRootDirectory() ? *this
226 : RemoveTrailingPathSeparator());
228 const FilePath& path(*this);
231 #if GTEST_OS_WINDOWS_MOBILE
232 LPCWSTR unicode = String::AnsiToUtf16(path.c_str());
233 const DWORD attributes = GetFileAttributes(unicode);
235 if ((attributes != kInvalidFileAttributes) &&
236 (attributes & FILE_ATTRIBUTE_DIRECTORY)) {
240 posix::StatStruct file_stat{};
242 posix::Stat(path.c_str(), &file_stat) == 0 && posix::IsDir(file_stat);
243 #endif // GTEST_OS_WINDOWS_MOBILE
248 // Returns true if pathname describes a root directory. (Windows has one
249 // root directory per disk drive.)
250 bool FilePath::IsRootDirectory() const {
252 return pathname_.length() == 3 && IsAbsolutePath();
254 return pathname_.length() == 1 && IsPathSeparator(pathname_.c_str()[0]);
258 // Returns true if pathname describes an absolute path.
259 bool FilePath::IsAbsolutePath() const {
260 const char* const name = pathname_.c_str();
262 return pathname_.length() >= 3 &&
263 ((name[0] >= 'a' && name[0] <= 'z') ||
264 (name[0] >= 'A' && name[0] <= 'Z')) &&
265 name[1] == ':' && IsPathSeparator(name[2]);
267 return IsPathSeparator(name[0]);
271 // Returns a pathname for a file that does not currently exist. The pathname
272 // will be directory/base_name.extension or
273 // directory/base_name_<number>.extension if directory/base_name.extension
274 // already exists. The number will be incremented until a pathname is found
275 // that does not already exist.
276 // Examples: 'dir/foo_test.xml' or 'dir/foo_test_1.xml'.
277 // There could be a race condition if two or more processes are calling this
278 // function at the same time -- they could both pick the same filename.
279 FilePath FilePath::GenerateUniqueFileName(const FilePath& directory,
280 const FilePath& base_name,
281 const char* extension) {
282 FilePath full_pathname;
285 full_pathname.Set(MakeFileName(directory, base_name, number++, extension));
286 } while (full_pathname.FileOrDirectoryExists());
287 return full_pathname;
290 // Returns true if FilePath ends with a path separator, which indicates that
291 // it is intended to represent a directory. Returns false otherwise.
292 // This does NOT check that a directory (or file) actually exists.
293 bool FilePath::IsDirectory() const {
294 return !pathname_.empty() &&
295 IsPathSeparator(pathname_.c_str()[pathname_.length() - 1]);
298 // Create directories so that path exists. Returns true if successful or if
299 // the directories already exist; returns false if unable to create directories
301 bool FilePath::CreateDirectoriesRecursively() const {
302 if (!this->IsDirectory()) {
306 if (pathname_.length() == 0 || this->DirectoryExists()) {
310 const FilePath parent(this->RemoveTrailingPathSeparator().RemoveFileName());
311 return parent.CreateDirectoriesRecursively() && this->CreateFolder();
314 // Create the directory so that path exists. Returns true if successful or
315 // if the directory already exists; returns false if unable to create the
316 // directory for any reason, including if the parent directory does not
317 // exist. Not named "CreateDirectory" because that's a macro on Windows.
318 bool FilePath::CreateFolder() const {
319 #if GTEST_OS_WINDOWS_MOBILE
320 FilePath removed_sep(this->RemoveTrailingPathSeparator());
321 LPCWSTR unicode = String::AnsiToUtf16(removed_sep.c_str());
322 int result = CreateDirectory(unicode, nullptr) ? 0 : -1;
324 #elif GTEST_OS_WINDOWS
325 int result = _mkdir(pathname_.c_str());
326 #elif GTEST_OS_ESP8266 || GTEST_OS_XTENSA
330 int result = mkdir(pathname_.c_str(), 0777);
331 #endif // GTEST_OS_WINDOWS_MOBILE
334 return this->DirectoryExists(); // An error is OK if the directory exists.
336 return true; // No error.
339 // If input name has a trailing separator character, remove it and return the
340 // name, otherwise return the name string unmodified.
341 // On Windows platform, uses \ as the separator, other platforms use /.
342 FilePath FilePath::RemoveTrailingPathSeparator() const {
343 return IsDirectory() ? FilePath(pathname_.substr(0, pathname_.length() - 1))
347 // Removes any redundant separators that might be in the pathname.
348 // For example, "bar///foo" becomes "bar/foo". Does not eliminate other
349 // redundancies that might be in a pathname involving "." or "..".
350 void FilePath::Normalize() {
351 auto out = pathname_.begin();
353 for (const char character : pathname_) {
354 if (!IsPathSeparator(character)) {
355 *(out++) = character;
356 } else if (out == pathname_.begin() || *std::prev(out) != kPathSeparator) {
357 *(out++) = kPathSeparator;
363 pathname_.erase(out, pathname_.end());
366 } // namespace internal
367 } // namespace testing