CMake/Source/cmLoadCacheCommand.h

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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
#ifndef cmLoadCacheCommand_h
#define cmLoadCacheCommand_h
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#include "cmCommand.h"
/** \class cmLoadCacheCommand
* \brief load a cache file
*
* cmLoadCacheCommand loads the non internal values of a cache file
*/
class cmLoadCacheCommand : public cmCommand
{
public:
/**
* This is a virtual constructor for the command.
*/
virtual cmCommand* Clone()
{
return new cmLoadCacheCommand;
}
/**
* This is called when the command is first encountered in
* the CMakeLists.txt file.
*/
virtual bool InitialPass(std::vector<std::string> const& args,
cmExecutionStatus &status);
/**
* The name of the command as specified in CMakeList.txt.
*/
virtual const char* GetName() { return "load_cache";}
/**
* Succinct documentation.
*/
virtual const char* GetTerseDocumentation()
{
return "Load in the values from another project's CMake cache.";
}
/**
* More documentation.
*/
virtual const char* GetFullDocumentation()
{
return
" load_cache(pathToCacheFile READ_WITH_PREFIX\n"
" prefix entry1...)\n"
"Read the cache and store the requested entries in variables with "
"their name prefixed with the given prefix. "
"This only reads the values, and does not create entries in the local "
"project's cache.\n"
" load_cache(pathToCacheFile [EXCLUDE entry1...]\n"
" [INCLUDE_INTERNALS entry1...])\n"
"Load in the values from another cache and store them in the local "
"project's cache as internal entries. This is useful for a project "
"that depends on another project built in a different tree. "
"EXCLUDE option can be used to provide a list of entries to be "
"excluded. "
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"INCLUDE_INTERNALS can be used to provide a list of internal entries "
"to be included. Normally, no internal entries are brought in. Use "
"of this form of the command is strongly discouraged, but it is "
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"provided for backward compatibility.";
}
cmTypeMacro(cmLoadCacheCommand, cmCommand);
protected:
std::set<cmStdString> VariablesToRead;
std::string Prefix;
bool ReadWithPrefix(std::vector<std::string> const& args);
void CheckLine(const char* line);
bool ParseEntry(const char* entry, std::string& var, std::string& value);
};
#endif