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30 #include "gtest/internal/gtest-filepath.h"
33 #include "gtest/internal/gtest-port.h"
34 #include "gtest/gtest-message.h"
36 #if GTEST_OS_WINDOWS_MOBILE
38 #elif GTEST_OS_WINDOWS
43 # include <climits> // Some Linux distributions define PATH_MAX here.
44 #endif // GTEST_OS_WINDOWS_MOBILE
46 #include "gtest/internal/gtest-string.h"
49 # define GTEST_PATH_MAX_ _MAX_PATH
50 #elif defined(PATH_MAX)
51 # define GTEST_PATH_MAX_ PATH_MAX
52 #elif defined(_XOPEN_PATH_MAX)
53 # define GTEST_PATH_MAX_ _XOPEN_PATH_MAX
55 # define GTEST_PATH_MAX_ _POSIX_PATH_MAX
56 #endif // GTEST_OS_WINDOWS
62 // On Windows, '\\' is the standard path separator, but many tools and the
63 // Windows API also accept '/' as an alternate path separator. Unless otherwise
64 // noted, a file path can contain either kind of path separators, or a mixture
66 const char kPathSeparator = '\\';
67 const char kAlternatePathSeparator = '/';
68 const char kAlternatePathSeparatorString[] = "/";
69 # if GTEST_OS_WINDOWS_MOBILE
70 // Windows CE doesn't have a current directory. You should not use
71 // the current directory in tests on Windows CE, but this at least
72 // provides a reasonable fallback.
73 const char kCurrentDirectoryString[] = "\\";
74 // Windows CE doesn't define INVALID_FILE_ATTRIBUTES
75 const DWORD kInvalidFileAttributes = 0xffffffff;
77 const char kCurrentDirectoryString[] = ".\\";
78 # endif // GTEST_OS_WINDOWS_MOBILE
80 const char kPathSeparator = '/';
81 const char kCurrentDirectoryString[] = "./";
82 #endif // GTEST_OS_WINDOWS
84 // Returns whether the given character is a valid path separator.
85 static bool IsPathSeparator(char c) {
86 #if GTEST_HAS_ALT_PATH_SEP_
87 return (c == kPathSeparator) || (c == kAlternatePathSeparator);
89 return c == kPathSeparator;
93 // Returns the current working directory, or "" if unsuccessful.
94 FilePath FilePath::GetCurrentDir() {
95 #if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_PHONE || \
96 GTEST_OS_WINDOWS_RT || GTEST_OS_ESP8266 || GTEST_OS_ESP32 || \
98 // These platforms do not have a current directory, so we just return
99 // something reasonable.
100 return FilePath(kCurrentDirectoryString);
101 #elif GTEST_OS_WINDOWS
102 char cwd[GTEST_PATH_MAX_ + 1] = { '\0' };
103 return FilePath(_getcwd(cwd, sizeof(cwd)) == nullptr ? "" : cwd);
105 char cwd[GTEST_PATH_MAX_ + 1] = { '\0' };
106 char* result = getcwd(cwd, sizeof(cwd));
108 // getcwd will likely fail in NaCl due to the sandbox, so return something
109 // reasonable. The user may have provided a shim implementation for getcwd,
110 // however, so fallback only when failure is detected.
111 return FilePath(result == nullptr ? kCurrentDirectoryString : cwd);
112 # endif // GTEST_OS_NACL
113 return FilePath(result == nullptr ? "" : cwd);
114 #endif // GTEST_OS_WINDOWS_MOBILE
117 // Returns a copy of the FilePath with the case-insensitive extension removed.
118 // Example: FilePath("dir/file.exe").RemoveExtension("EXE") returns
119 // FilePath("dir/file"). If a case-insensitive extension is not
120 // found, returns a copy of the original FilePath.
121 FilePath FilePath::RemoveExtension(const char* extension) const {
122 const std::string dot_extension = std::string(".") + extension;
123 if (String::EndsWithCaseInsensitive(pathname_, dot_extension)) {
124 return FilePath(pathname_.substr(
125 0, pathname_.length() - dot_extension.length()));
130 // Returns a pointer to the last occurrence of a valid path separator in
131 // the FilePath. On Windows, for example, both '/' and '\' are valid path
132 // separators. Returns NULL if no path separator was found.
133 const char* FilePath::FindLastPathSeparator() const {
134 const char* const last_sep = strrchr(c_str(), kPathSeparator);
135 #if GTEST_HAS_ALT_PATH_SEP_
136 const char* const last_alt_sep = strrchr(c_str(), kAlternatePathSeparator);
137 // Comparing two pointers of which only one is NULL is undefined.
138 if (last_alt_sep != nullptr &&
139 (last_sep == nullptr || last_alt_sep > last_sep)) {
146 // Returns a copy of the FilePath with the directory part removed.
147 // Example: FilePath("path/to/file").RemoveDirectoryName() returns
148 // FilePath("file"). If there is no directory part ("just_a_file"), it returns
149 // the FilePath unmodified. If there is no file part ("just_a_dir/") it
150 // returns an empty FilePath ("").
151 // On Windows platform, '\' is the path separator, otherwise it is '/'.
152 FilePath FilePath::RemoveDirectoryName() const {
153 const char* const last_sep = FindLastPathSeparator();
154 return last_sep ? FilePath(last_sep + 1) : *this;
157 // RemoveFileName returns the directory path with the filename removed.
158 // Example: FilePath("path/to/file").RemoveFileName() returns "path/to/".
159 // If the FilePath is "a_file" or "/a_file", RemoveFileName returns
160 // FilePath("./") or, on Windows, FilePath(".\\"). If the filepath does
161 // not have a file, like "just/a/dir/", it returns the FilePath unmodified.
162 // On Windows platform, '\' is the path separator, otherwise it is '/'.
163 FilePath FilePath::RemoveFileName() const {
164 const char* const last_sep = FindLastPathSeparator();
167 dir = std::string(c_str(), static_cast<size_t>(last_sep + 1 - c_str()));
169 dir = kCurrentDirectoryString;
171 return FilePath(dir);
174 // Helper functions for naming files in a directory for xml output.
176 // Given directory = "dir", base_name = "test", number = 0,
177 // extension = "xml", returns "dir/test.xml". If number is greater
178 // than zero (e.g., 12), returns "dir/test_12.xml".
179 // On Windows platform, uses \ as the separator rather than /.
180 FilePath FilePath::MakeFileName(const FilePath& directory,
181 const FilePath& base_name,
183 const char* extension) {
186 file = base_name.string() + "." + extension;
188 file = base_name.string() + "_" + StreamableToString(number)
191 return ConcatPaths(directory, FilePath(file));
194 // Given directory = "dir", relative_path = "test.xml", returns "dir/test.xml".
195 // On Windows, uses \ as the separator rather than /.
196 FilePath FilePath::ConcatPaths(const FilePath& directory,
197 const FilePath& relative_path) {
198 if (directory.IsEmpty())
199 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{};
241 result = posix::Stat(path.c_str(), &file_stat) == 0 &&
242 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')) &&
266 IsPathSeparator(name[2]);
268 return IsPathSeparator(name[0]);
272 // Returns a pathname for a file that does not currently exist. The pathname
273 // will be directory/base_name.extension or
274 // directory/base_name_<number>.extension if directory/base_name.extension
275 // already exists. The number will be incremented until a pathname is found
276 // that does not already exist.
277 // Examples: 'dir/foo_test.xml' or 'dir/foo_test_1.xml'.
278 // There could be a race condition if two or more processes are calling this
279 // function at the same time -- they could both pick the same filename.
280 FilePath FilePath::GenerateUniqueFileName(const FilePath& directory,
281 const FilePath& base_name,
282 const char* extension) {
283 FilePath full_pathname;
286 full_pathname.Set(MakeFileName(directory, base_name, number++, extension));
287 } while (full_pathname.FileOrDirectoryExists());
288 return full_pathname;
291 // Returns true if FilePath ends with a path separator, which indicates that
292 // it is intended to represent a directory. Returns false otherwise.
293 // This does NOT check that a directory (or file) actually exists.
294 bool FilePath::IsDirectory() const {
295 return !pathname_.empty() &&
296 IsPathSeparator(pathname_.c_str()[pathname_.length() - 1]);
299 // Create directories so that path exists. Returns true if successful or if
300 // the directories already exist; returns false if unable to create directories
302 bool FilePath::CreateDirectoriesRecursively() const {
303 if (!this->IsDirectory()) {
307 if (pathname_.length() == 0 || this->DirectoryExists()) {
311 const FilePath parent(this->RemoveTrailingPathSeparator().RemoveFileName());
312 return parent.CreateDirectoriesRecursively() && this->CreateFolder();
315 // Create the directory so that path exists. Returns true if successful or
316 // if the directory already exists; returns false if unable to create the
317 // directory for any reason, including if the parent directory does not
318 // exist. Not named "CreateDirectory" because that's a macro on Windows.
319 bool FilePath::CreateFolder() const {
320 #if GTEST_OS_WINDOWS_MOBILE
321 FilePath removed_sep(this->RemoveTrailingPathSeparator());
322 LPCWSTR unicode = String::AnsiToUtf16(removed_sep.c_str());
323 int result = CreateDirectory(unicode, nullptr) ? 0 : -1;
325 #elif GTEST_OS_WINDOWS
326 int result = _mkdir(pathname_.c_str());
327 #elif GTEST_OS_ESP8266 || GTEST_OS_XTENSA
331 int result = mkdir(pathname_.c_str(), 0777);
332 #endif // GTEST_OS_WINDOWS_MOBILE
335 return this->DirectoryExists(); // An error is OK if the directory exists.
337 return true; // No error.
340 // If input name has a trailing separator character, remove it and return the
341 // name, otherwise return the name string unmodified.
342 // On Windows platform, uses \ as the separator, other platforms use /.
343 FilePath FilePath::RemoveTrailingPathSeparator() const {
345 ? FilePath(pathname_.substr(0, pathname_.length() - 1))
349 // Removes any redundant separators that might be in the pathname.
350 // For example, "bar///foo" becomes "bar/foo". Does not eliminate other
351 // redundancies that might be in a pathname involving "." or "..".
352 void FilePath::Normalize() {
353 auto out = pathname_.begin();
355 for (const char character : pathname_) {
356 if (!IsPathSeparator(character)) {
357 *(out++) = character;
358 } else if (out == pathname_.begin() || *std::prev(out) != kPathSeparator) {
359 *(out++) = kPathSeparator;
365 pathname_.erase(out, pathname_.end());
368 } // namespace internal
369 } // namespace testing