ENH: Start working on a general file manipulation command

This commit is contained in:
Andy Cedilnik 2003-07-07 17:47:17 -04:00
parent 197368d9e7
commit 372d2cbea9
3 changed files with 203 additions and 0 deletions

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@ -34,6 +34,7 @@
#include "cmEndForEachCommand.cxx"
#include "cmEndIfCommand.cxx"
#include "cmExecProgramCommand.cxx"
#include "cmFileCommand.cxx"
#include "cmFindFileCommand.cxx"
#include "cmFindLibraryCommand.cxx"
#include "cmFindPackageCommand.cxx"
@ -125,6 +126,7 @@ void GetPredefinedCommands(std::list<cmCommand*>& commands)
commands.push_back(new cmEndForEachCommand);
commands.push_back(new cmEndIfCommand);
commands.push_back(new cmExecProgramCommand);
commands.push_back(new cmFileCommand);
commands.push_back(new cmFindFileCommand);
commands.push_back(new cmFindLibraryCommand);
commands.push_back(new cmFindPackageCommand);

113
Source/cmFileCommand.cxx Normal file
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@ -0,0 +1,113 @@
/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "cmFileCommand.h"
// cmLibraryCommand
bool cmFileCommand::InitialPass(std::vector<std::string> const& args)
{
if(args.size() < 2 )
{
this->SetError("must be called with at least two arguments.");
return false;
}
std::string subCommand = args[0];
if ( subCommand == "WRITE" )
{
return this->HandleWriteCommand(args, false);
}
else if ( subCommand == "APPEND" )
{
return this->HandleWriteCommand(args, true);
}
else if ( subCommand == "READ" )
{
return this->HandleReadCommand(args);
}
std::string e = "does not recognize sub-command "+subCommand;
this->SetError(e.c_str());
return true;
}
//----------------------------------------------------------------------------
bool cmFileCommand::HandleWriteCommand(std::vector<std::string> const& args,
bool append)
{
std::string message;
std::vector<std::string>::const_iterator i = args.begin();
i++; // Get rid of subcommand
std::string fileName = *i;
i++;
for(;i != args.end(); ++i)
{
message += *i;
}
std::string dir = cmSystemTools::GetFilenamePath(fileName);
cmSystemTools::MakeDirectory(dir.c_str());
std::ofstream file(fileName.c_str(), append?std::ios::app: std::ios::out);
if ( !file )
{
std::string error = "Internal CMake error when trying to open file: ";
error += fileName.c_str();
error += " for writting.";
this->SetError(error.c_str());
return false;
}
file << message << std::endl;
file.close();
return true;
}
//----------------------------------------------------------------------------
bool cmFileCommand::HandleReadCommand(std::vector<std::string> const& args)
{
if ( args.size() != 3 )
{
this->SetError("READ must be called with two additional arguments");
}
std::string fileName = args[1];
std::string variable = args[2];
std::ifstream file(fileName.c_str(), std::ios::in);
if ( !file )
{
std::string error = "Internal CMake error when trying to open file: ";
error += fileName.c_str();
error += " for reading.";
this->SetError(error.c_str());
return false;
}
std::string output;
std::string line;
bool has_newline = false;
while ( cmSystemTools::GetLineFromStream(file, line, &has_newline) )
{
output += line;
if ( has_newline )
{
output += "\n";
}
}
m_Makefile->AddDefinition(variable.c_str(), output.c_str());
return true;
}

88
Source/cmFileCommand.h Normal file
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@ -0,0 +1,88 @@
/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef cmFileCommand_h
#define cmFileCommand_h
#include "cmStandardIncludes.h"
#include "cmCommand.h"
/** \class cmFileCommand
* \brief Command for manipulation of files
*
*/
class cmFileCommand : public cmCommand
{
public:
/**
* This is a virtual constructor for the command.
*/
virtual cmCommand* Clone()
{
return new cmFileCommand;
}
/**
* This is called when the command is first encountered in
* the CMakeLists.txt file.
*/
virtual bool InitialPass(std::vector<std::string> const& args);
/**
* This determines if the command gets propagated down
* to makefiles located in subdirectories.
*/
virtual bool IsInherited() {return true;}
/**
* The name of the command as specified in CMakeList.txt.
*/
virtual const char* GetName() { return "FILE";}
/**
* Succinct documentation.
*/
virtual const char* GetTerseDocumentation()
{
return "File manipulation command.";
}
/**
* More documentation.
*/
virtual const char* GetFullDocumentation()
{
return
" FILE(WRITE filename \"message to write\"... )\n"
" FILE(APPEND filename \"message to write\"... )\n"
" FILE(READ filename variable)\n"
"WRITE will write a message into a file called 'filename'. It "
"overwrites the file if it already exists, and creates the file "
"if it does not exists.\n\n"
"APPEND will write a message into a file same as WRITE, except "
"it will append it to the end of the file\n\n"
"READ will read the content of a file and store it into a "
"variable.\n\n"; }
cmTypeMacro(cmFileCommand, cmCommand);
protected:
bool HandleWriteCommand(std::vector<std::string> const& args, bool append);
bool HandleReadCommand(std::vector<std::string> const& args);
};
#endif