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 // Copyright 2008, Google Inc.
 // All rights reserved.
 //
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 // 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
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 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // Google Test filepath utilities
 //
 // This header file declares classes and functions used internally by
 // Google Test.  They are subject to change without notice.
 //
 // This file is #included in gtest/internal/gtest-internal.h.
 // Do not include this header file separately!
 
 // IWYU pragma: private, include "gtest/gtest.h"
 // IWYU pragma: friend gtest/.*
 // IWYU pragma: friend gmock/.*
 
 #ifndef GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_FILEPATH_H_
 #define GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_FILEPATH_H_
 
 #include "gtest/internal/gtest-string.h"
 
 GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
 /* class A needs to have dll-interface to be used by clients of class B */)
 
 namespace testing {
 namespace internal {
 
 // FilePath - a class for file and directory pathname manipulation which
 // handles platform-specific conventions (like the pathname separator).
 // Used for helper functions for naming files in a directory for xml output.
 // Except for Set methods, all methods are const or static, which provides an
 // "immutable value object" -- useful for peace of mind.
 // A FilePath with a value ending in a path separator ("like/this/") represents
 // a directory, otherwise it is assumed to represent a file. In either case,
 // it may or may not represent an actual file or directory in the file system.
 // Names are NOT checked for syntax correctness -- no checking for illegal
 // characters, malformed paths, etc.
 
 class GTEST_API_ FilePath {
  public:
   FilePath() : pathname_("") {}
   FilePath(const FilePath& rhs) : pathname_(rhs.pathname_) {}
 
   explicit FilePath(const std::string& pathname) : pathname_(pathname) {
     Normalize();
   }
 
   FilePath& operator=(const FilePath& rhs) {
     Set(rhs);
     return *this;
   }
 
   void Set(const FilePath& rhs) { pathname_ = rhs.pathname_; }
 
   const std::string& string() const { return pathname_; }
   const char* c_str() const { return pathname_.c_str(); }
 
   // Returns the current working directory, or "" if unsuccessful.
   static FilePath GetCurrentDir();
 
   // 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 /.
   static FilePath MakeFileName(const FilePath& directory,
                                const FilePath& base_name, int number,
                                const char* extension);
 
   // Given directory = "dir", relative_path = "test.xml",
   // returns "dir/test.xml".
   // On Windows, uses \ as the separator rather than /.
   static FilePath ConcatPaths(const FilePath& directory,
                               const FilePath& relative_path);
 
   // 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.
   static FilePath GenerateUniqueFileName(const FilePath& directory,
                                          const FilePath& base_name,
                                          const char* extension);
 
   // Returns true if and only if the path is "".
   bool IsEmpty() const { return pathname_.empty(); }
 
   // If input name has a trailing separator character, removes it and returns
   // the name, otherwise return the name string unmodified.
   // On Windows platform, uses \ as the separator, other platforms use /.
   FilePath RemoveTrailingPathSeparator() const;
 
   // 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 RemoveDirectoryName() const;
 
   // 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 RemoveFileName() const;
 
   // 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 RemoveExtension(const char* extension) const;
 
   // Creates 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. Will also return false if the FilePath does
   // not represent a directory (that is, it doesn't end with a path separator).
   bool CreateDirectoriesRecursively() const;
 
   // 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 CreateFolder() const;
 
   // Returns true if FilePath describes something in the file-system,
   // either a file, directory, or whatever, and that something exists.
   bool FileOrDirectoryExists() const;
 
   // Returns true if pathname describes a directory in the file-system
   // that exists.
   bool DirectoryExists() const;
 
   // 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 IsDirectory() const;
 
   // Returns true if pathname describes a root directory. (Windows has one
   // root directory per disk drive.)
   bool IsRootDirectory() const;
 
   // Returns true if pathname describes an absolute path.
   bool IsAbsolutePath() const;
 
  private:
   // Replaces multiple consecutive separators with a single separator.
   // For example, "bar///foo" becomes "bar/foo". Does not eliminate other
   // redundancies that might be in a pathname involving "." or "..".
   //
   // A pathname with multiple consecutive separators may occur either through
   // user error or as a result of some scripts or APIs that generate a pathname
   // with a trailing separator. On other platforms the same API or script
   // may NOT generate a pathname with a trailing "/". Then elsewhere that
   // pathname may have another "/" and pathname components added to it,
   // without checking for the separator already being there.
   // The script language and operating system may allow paths like "foo//bar"
   // but some of the functions in FilePath will not handle that correctly. In
   // particular, RemoveTrailingPathSeparator() only removes one separator, and
   // it is called in CreateDirectoriesRecursively() assuming that it will change
   // a pathname from directory syntax (trailing separator) to filename syntax.
   //
   // On Windows this method also replaces the alternate path separator '/' with
   // the primary path separator '\\', so that for example "bar\\/\\foo" becomes
   // "bar\\foo".
 
   void Normalize();
 
   // Returns a pointer to the last occurrence 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* FindLastPathSeparator() const;
 
   std::string pathname_;
 };  // class FilePath
 
 }  // namespace internal
 }  // namespace testing
 
 GTEST_DISABLE_MSC_WARNINGS_POP_()  //  4251
 
 #endif  // GOOGLETEST_INCLUDE_GTEST_INTERNAL_GTEST_FILEPATH_H_

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