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gtest-filepath.h
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// 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.
//
// 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!
// GOOGLETEST_CM0001 DO NOT DELETE
#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_FILEPATH_H_
#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_FILEPATH_H_
#include "gtest/internal/gtest-string.h"
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 iff 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 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
*
FindLastPathSeparator
()
const
;
std
::
string
pathname_
;
};
// class FilePath
}
// namespace internal
}
// namespace testing
#endif
// GTEST_INCLUDE_GTEST_INTERNAL_GTEST_FILEPATH_H_
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