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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2001 Insight Consortium
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.
* The name of the Insight Consortium, nor the names of any consortium members,
nor of any contributors, may be used to endorse or promote products derived
from this software without specific prior written permission.
* Modified source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER 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 AUTHORS 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.
=========================================================================*/
#ifndef cmSystemTools_h
#define cmSystemTools_h
#include "cmStandardIncludes.h"
/** \class cmSystemTools
* \brief A collection of useful functions for CMake.
*
* cmSystemTools is a class that provides helper functions
* for the CMake build system.
*/
class cmSystemTools
{
public:
/**
* Make a new directory if it is not there. This function
* can make a full path even if none of the directories existed
* prior to calling this function.
*/
static bool MakeDirectory(const char* path);
/**
* Replace replace all occurances of the string in
* the source string.
*/
static void ReplaceString(std::string& source,
const char* replace,
const char* with);
/**
* Return a string equivalent to the input string, but with all " " replaced
* with "\ " to escape the spaces.
*/
static std::string EscapeSpaces(const char*);
/**
* Replace Windows file system slashes with Unix-style slashes.
*/
static void ConvertToUnixSlashes(std::string& path);
///! Return true if a file exists in the current directory.
static bool FileExists(const char* filename);
/**
* Return the number of times the given expression occurs in the file
* specified by the concatenation of dir/file.
*/
static int Grep(const char* dir, const char* file, const char* expression);
/**
* Convert a path containing a cygwin drive specifier to its natural
* equivalent.
*/
static void ConvertCygwinPath(std::string& pathname);
/**
* Read a CMake command (or function) from an input file. This
* returns the name of the function and a list of its
* arguments.
*/
static bool ParseFunction(std::ifstream&,
std::string& name,
std::vector<std::string>& arguments);
/**
* Extract white-space separated arguments from a string.
* Double quoted strings are accepted with spaces.
* This is called by ParseFunction.
*/
static void GetArguments(std::string& line,
std::vector<std::string>& arguments);
/**
* Add the paths from the environment variable PATH to the
* string vector passed in.
*/
static void GetPath(std::vector<std::string>& path);
/**
* Get the file extension (including ".") needed for an executable
* on the current platform ("" for unix, ".exe" for Windows).
*/
static const char* GetExecutableExtension();
/**
* Display an error message.
*/
static void Error(const char* m, const char* m2=0,
const char* m3=0, const char* m4=0);
///! Return true if there was an error at any point.
static bool GetErrorOccuredFlag()
{
return cmSystemTools::s_ErrorOccured;
}
/**
* Copy the source file to the destination file only
* if the two files differ.
*/
static void CopyFileIfDifferent(const char* source,
const char* destination);
///! Compare the contents of two files. Return true if different.
static bool FilesDiffer(const char* source,
const char* destination);
///! Copy a file.
static void cmCopyFile(const char* source,
const char* destination);
///! Remove a file.
static void RemoveFile(const char* source);
///! does a string indicate a true or on value ?
static bool IsOn(const char* val);
static long int ModifiedTime(const char* filename);
private:
static bool s_ErrorOccured;
};
#endif
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