The Tor Browser: comparison media/webrtc/trunk/testing/gtest/src/gtest-filepath.cc

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+:3a41cd4ed3c1
+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Authors: keith.ray@gmail.com (Keith Ray)
+#include "gtest/internal/gtest-filepath.h"
+#include "gtest/internal/gtest-port.h"
+#include <stdlib.h>
+#if GTEST_OS_WINDOWS_MOBILE
+# include <windows.h>
+#elif GTEST_OS_WINDOWS
+# include <direct.h>
+# include <io.h>
+#elif GTEST_OS_SYMBIAN
+// Symbian OpenC has PATH_MAX in sys/syslimits.h
+# include <sys/syslimits.h>
+#else
+# include <limits.h>
+# include <climits>  // Some Linux distributions define PATH_MAX here.
+#endif  // GTEST_OS_WINDOWS_MOBILE
+#if GTEST_OS_WINDOWS
+# define GTEST_PATH_MAX_ _MAX_PATH
+#elif defined(PATH_MAX)
+# define GTEST_PATH_MAX_ PATH_MAX
+#elif defined(_XOPEN_PATH_MAX)
+# define GTEST_PATH_MAX_ _XOPEN_PATH_MAX
+#else
+# define GTEST_PATH_MAX_ _POSIX_PATH_MAX
+#endif  // GTEST_OS_WINDOWS
+#include "gtest/internal/gtest-string.h"
+namespace testing {
+namespace internal {
+#if GTEST_OS_WINDOWS
+// On Windows, '\\' is the standard path separator, but many tools and the
+// Windows API also accept '/' as an alternate path separator. Unless otherwise
+// noted, a file path can contain either kind of path separators, or a mixture
+// of them.
+const char kPathSeparator = '\\';
+const char kAlternatePathSeparator = '/';
+const char kPathSeparatorString[] = "\\";
+const char kAlternatePathSeparatorString[] = "/";
+# if GTEST_OS_WINDOWS_MOBILE
+// Windows CE doesn't have a current directory. You should not use
+// the current directory in tests on Windows CE, but this at least
+// provides a reasonable fallback.
+const char kCurrentDirectoryString[] = "\\";
+// Windows CE doesn't define INVALID_FILE_ATTRIBUTES
+const DWORD kInvalidFileAttributes = 0xffffffff;
+# else
+const char kCurrentDirectoryString[] = ".\\";
+# endif  // GTEST_OS_WINDOWS_MOBILE
+#else
+const char kPathSeparator = '/';
+const char kPathSeparatorString[] = "/";
+const char kCurrentDirectoryString[] = "./";
+#endif  // GTEST_OS_WINDOWS
+// Returns whether the given character is a valid path separator.
+static bool IsPathSeparator(char c) {
+#if GTEST_HAS_ALT_PATH_SEP_
+return (c == kPathSeparator) || (c == kAlternatePathSeparator);
+#else
+return c == kPathSeparator;
+#endif
+}
+// Returns the current working directory, or "" if unsuccessful.
+FilePath FilePath::GetCurrentDir() {
+#if GTEST_OS_WINDOWS_MOBILE
+// Windows CE doesn't have a current directory, so we just return
+// something reasonable.
+return FilePath(kCurrentDirectoryString);
+#elif GTEST_OS_WINDOWS
+char cwd[GTEST_PATH_MAX_ + 1] = { '\0' };
+return FilePath(_getcwd(cwd, sizeof(cwd)) == NULL ? "" : cwd);
+#else
+char cwd[GTEST_PATH_MAX_ + 1] = { '\0' };
+return FilePath(getcwd(cwd, sizeof(cwd)) == NULL ? "" : cwd);
+#endif  // GTEST_OS_WINDOWS_MOBILE
+}
+// Returns a copy of the FilePath with the case-insensitive extension removed.
+// Example: FilePath("dir/file.exe").RemoveExtension("EXE") returns
+// FilePath("dir/file"). If a case-insensitive extension is not
+// found, returns a copy of the original FilePath.
+FilePath FilePath::RemoveExtension(const char* extension) const {
+String dot_extension(String::Format(".%s", extension));
+if (pathname_.EndsWithCaseInsensitive(dot_extension.c_str())) {
+return FilePath(String(pathname_.c_str(), pathname_.length() - 4));
+}
+return *this;
+}
+// Returns a pointer to the last occurence of a valid path separator in
+// the FilePath. On Windows, for example, both '/' and '\' are valid path
+// separators. Returns NULL if no path separator was found.
+const char* FilePath::FindLastPathSeparator() const {
+const char* const last_sep = strrchr(c_str(), kPathSeparator);
+#if GTEST_HAS_ALT_PATH_SEP_
+const char* const last_alt_sep = strrchr(c_str(), kAlternatePathSeparator);
+// Comparing two pointers of which only one is NULL is undefined.
+if (last_alt_sep != NULL &&
+(last_sep == NULL || last_alt_sep > last_sep)) {
+return last_alt_sep;
+}
+#endif
+return last_sep;
+}
+// Returns a copy of the FilePath with the directory part removed.
+// Example: FilePath("path/to/file").RemoveDirectoryName() returns
+// FilePath("file"). If there is no directory part ("just_a_file"), it returns
+// the FilePath unmodified. If there is no file part ("just_a_dir/") it
+// returns an empty FilePath ("").
+// On Windows platform, '\' is the path separator, otherwise it is '/'.
+FilePath FilePath::RemoveDirectoryName() const {
+const char* const last_sep = FindLastPathSeparator();
+return last_sep ? FilePath(String(last_sep + 1)) : *this;
+}
+// RemoveFileName returns the directory path with the filename removed.
+// Example: FilePath("path/to/file").RemoveFileName() returns "path/to/".
+// If the FilePath is "a_file" or "/a_file", RemoveFileName returns
+// FilePath("./") or, on Windows, FilePath(".\\"). If the filepath does
+// not have a file, like "just/a/dir/", it returns the FilePath unmodified.
+// On Windows platform, '\' is the path separator, otherwise it is '/'.
+FilePath FilePath::RemoveFileName() const {
+const char* const last_sep = FindLastPathSeparator();
+String dir;
+if (last_sep) {
+dir = String(c_str(), last_sep + 1 - c_str());
+} else {
+dir = kCurrentDirectoryString;
+}
+return FilePath(dir);
+}
+// Helper functions for naming files in a directory for xml output.
+// Given directory = "dir", base_name = "test", number = 0,
+// extension = "xml", returns "dir/test.xml". If number is greater
+// than zero (e.g., 12), returns "dir/test_12.xml".
+// On Windows platform, uses \ as the separator rather than /.
+FilePath FilePath::MakeFileName(const FilePath& directory,
+const FilePath& base_name,
+int number,
+const char* extension) {
+String file;
+if (number == 0) {
+file = String::Format("%s.%s", base_name.c_str(), extension);
+} else {
+file = String::Format("%s_%d.%s", base_name.c_str(), number, extension);
+}
+return ConcatPaths(directory, FilePath(file));
+}
+// Given directory = "dir", relative_path = "test.xml", returns "dir/test.xml".
+// On Windows, uses \ as the separator rather than /.
+FilePath FilePath::ConcatPaths(const FilePath& directory,
+const FilePath& relative_path) {
+if (directory.IsEmpty())
+return relative_path;
+const FilePath dir(directory.RemoveTrailingPathSeparator());
+return FilePath(String::Format("%s%c%s", dir.c_str(), kPathSeparator,
+relative_path.c_str()));
+}
+// Returns true if pathname describes something findable in the file-system,
+// either a file, directory, or whatever.
+bool FilePath::FileOrDirectoryExists() const {
+#if GTEST_OS_WINDOWS_MOBILE
+LPCWSTR unicode = String::AnsiToUtf16(pathname_.c_str());
+const DWORD attributes = GetFileAttributes(unicode);
+delete [] unicode;
+return attributes != kInvalidFileAttributes;
+#else
+posix::StatStruct file_stat;
+return posix::Stat(pathname_.c_str(), &file_stat) == 0;
+#endif  // GTEST_OS_WINDOWS_MOBILE
+}
+// Returns true if pathname describes a directory in the file-system
+// that exists.
+bool FilePath::DirectoryExists() const {
+bool result = false;
+#if GTEST_OS_WINDOWS
+// Don't strip off trailing separator if path is a root directory on
+// Windows (like "C:\\").
+const FilePath& path(IsRootDirectory() ? *this :
+RemoveTrailingPathSeparator());
+#else
+const FilePath& path(*this);
+#endif
+#if GTEST_OS_WINDOWS_MOBILE
+LPCWSTR unicode = String::AnsiToUtf16(path.c_str());
+const DWORD attributes = GetFileAttributes(unicode);
+delete [] unicode;
+if ((attributes != kInvalidFileAttributes) &&
+(attributes & FILE_ATTRIBUTE_DIRECTORY)) {
+result = true;
+}
+#else
+posix::StatStruct file_stat;
+result = posix::Stat(path.c_str(), &file_stat) == 0 &&
+posix::IsDir(file_stat);
+#endif  // GTEST_OS_WINDOWS_MOBILE
+return result;
+}
+// Returns true if pathname describes a root directory. (Windows has one
+// root directory per disk drive.)
+bool FilePath::IsRootDirectory() const {
+#if GTEST_OS_WINDOWS
+// TODO(wan@google.com): on Windows a network share like
+// \\server\share can be a root directory, although it cannot be the
+// current directory.  Handle this properly.
+return pathname_.length() == 3 && IsAbsolutePath();
+#else
+return pathname_.length() == 1 && IsPathSeparator(pathname_.c_str()[0]);
+#endif
+}
+// Returns true if pathname describes an absolute path.
+bool FilePath::IsAbsolutePath() const {
+const char* const name = pathname_.c_str();
+#if GTEST_OS_WINDOWS
+return pathname_.length() >= 3 &&
+((name[0] >= 'a' && name[0] <= 'z') ||
+(name[0] >= 'A' && name[0] <= 'Z')) &&
+name[1] == ':' &&
+IsPathSeparator(name[2]);
+#else
+return IsPathSeparator(name[0]);
+#endif
+}
+// Returns a pathname for a file that does not currently exist. The pathname
+// will be directory/base_name.extension or
+// directory/base_name_<number>.extension if directory/base_name.extension
+// already exists. The number will be incremented until a pathname is found
+// that does not already exist.
+// Examples: 'dir/foo_test.xml' or 'dir/foo_test_1.xml'.
+// There could be a race condition if two or more processes are calling this
+// function at the same time -- they could both pick the same filename.
+FilePath FilePath::GenerateUniqueFileName(const FilePath& directory,
+const FilePath& base_name,
+const char* extension) {
+FilePath full_pathname;
+int number = 0;
+do {
+full_pathname.Set(MakeFileName(directory, base_name, number++, extension));
+} while (full_pathname.FileOrDirectoryExists());
+return full_pathname;
+}
+// Returns true if FilePath ends with a path separator, which indicates that
+// it is intended to represent a directory. Returns false otherwise.
+// This does NOT check that a directory (or file) actually exists.
+bool FilePath::IsDirectory() const {
+return !pathname_.empty() &&
+IsPathSeparator(pathname_.c_str()[pathname_.length() - 1]);
+}
+// Create directories so that path exists. Returns true if successful or if
+// the directories already exist; returns false if unable to create directories
+// for any reason.
+bool FilePath::CreateDirectoriesRecursively() const {
+if (!this->IsDirectory()) {
+return false;
+}
+if (pathname_.length() == 0 || this->DirectoryExists()) {
+return true;
+}
+const FilePath parent(this->RemoveTrailingPathSeparator().RemoveFileName());
+return parent.CreateDirectoriesRecursively() && this->CreateFolder();
+}
+// Create the directory so that path exists. Returns true if successful or
+// if the directory already exists; returns false if unable to create the
+// directory for any reason, including if the parent directory does not
+// exist. Not named "CreateDirectory" because that's a macro on Windows.
+bool FilePath::CreateFolder() const {
+#if GTEST_OS_WINDOWS_MOBILE
+FilePath removed_sep(this->RemoveTrailingPathSeparator());
+LPCWSTR unicode = String::AnsiToUtf16(removed_sep.c_str());
+int result = CreateDirectory(unicode, NULL) ? 0 : -1;
+delete [] unicode;
+#elif GTEST_OS_WINDOWS
+int result = _mkdir(pathname_.c_str());
+#else
+int result = mkdir(pathname_.c_str(), 0777);
+#endif  // GTEST_OS_WINDOWS_MOBILE
+if (result == -1) {
+return this->DirectoryExists();  // An error is OK if the directory exists.
+}
+return true;  // No error.
+}
+// If input name has a trailing separator character, remove it and return the
+// name, otherwise return the name string unmodified.
+// On Windows platform, uses \ as the separator, other platforms use /.
+FilePath FilePath::RemoveTrailingPathSeparator() const {
+return IsDirectory()
+? FilePath(String(pathname_.c_str(), pathname_.length() - 1))
+: *this;
+}
+// Removes any redundant separators that might be in the pathname.
+// For example, "bar///foo" becomes "bar/foo". Does not eliminate other
+// redundancies that might be in a pathname involving "." or "..".
+// TODO(wan@google.com): handle Windows network shares (e.g. \\server\share).
+void FilePath::Normalize() {
+if (pathname_.c_str() == NULL) {
+pathname_ = "";
+return;
+}
+const char* src = pathname_.c_str();
+char* const dest = new char[pathname_.length() + 1];
+char* dest_ptr = dest;
+memset(dest_ptr, 0, pathname_.length() + 1);
+while (*src != '\0') {
+*dest_ptr = *src;
+if (!IsPathSeparator(*src)) {
+src++;
+} else {
+#if GTEST_HAS_ALT_PATH_SEP_
+if (*dest_ptr == kAlternatePathSeparator) {
+*dest_ptr = kPathSeparator;
+}
+#endif
+while (IsPathSeparator(*src))
+src++;
+}
+dest_ptr++;
+}
+*dest_ptr = '\0';
+pathname_ = dest;
+delete[] dest;
+}
+}  // namespace internal
+}  // namespace testing

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comparison: media/webrtc/trunk/testing/gtest/src/gtest-filepath.cc

media/webrtc/trunk/testing/gtest/src/gtest-filepath.cc