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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
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.
============================================================================*/
#include "cmVariableWatchCommand.h"
#include "cmVariableWatch.h"
//----------------------------------------------------------------------------
static void cmVariableWatchCommandVariableAccessed(
const std::string& variable, int access_type, void* client_data,
const char* newValue, const cmMakefile* mf)
{
cmVariableWatchCommand* command
= static_cast<cmVariableWatchCommand*>(client_data);
command->VariableAccessed(variable, access_type, newValue, mf);
}
//----------------------------------------------------------------------------
cmVariableWatchCommand::cmVariableWatchCommand()
{
this->InCallback = false;
}
//----------------------------------------------------------------------------
bool cmVariableWatchCommand
::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
{
if ( args.size() < 1 )
{
this->SetError("must be called with at least one argument.");
return false;
}
std::string variable = args[0];
if ( args.size() > 1 )
{
std::string command = args[1];
this->Handlers[variable].Commands.push_back(args[1]);
}
if ( variable == "CMAKE_CURRENT_LIST_FILE" )
{
cmOStringStream ostr;
ostr << "cannot be set on the variable: " << variable.c_str();
this->SetError(ostr.str().c_str());
return false;
}
this->Makefile->GetCMakeInstance()->GetVariableWatch()->AddWatch(
variable, cmVariableWatchCommandVariableAccessed, this);
return true;
}
//----------------------------------------------------------------------------
void cmVariableWatchCommand::VariableAccessed(const std::string& variable,
int access_type, const char* newValue, const cmMakefile* mf)
{
if ( this->InCallback )
{
return;
}
this->InCallback = true;
cmListFileFunction newLFF;
cmVariableWatchCommandHandler *handler = &this->Handlers[variable];
cmVariableWatchCommandHandler::VectorOfCommands::iterator it;
cmListFileArgument arg;
bool processed = false;
const char* accessString = cmVariableWatch::GetAccessAsString(access_type);
const char* currentListFile = mf->GetDefinition("CMAKE_CURRENT_LIST_FILE");
/// Ultra bad!!
cmMakefile* makefile = const_cast<cmMakefile*>(mf);
std::string stack = makefile->GetProperty("LISTFILE_STACK");
for ( it = handler->Commands.begin(); it != handler->Commands.end();
++ it )
{
std::string command = *it;
newLFF.Arguments.clear();
newLFF.Arguments.push_back(
cmListFileArgument(variable, true, "unknown", 9999));
newLFF.Arguments.push_back(
cmListFileArgument(accessString, true, "unknown", 9999));
newLFF.Arguments.push_back(
cmListFileArgument(newValue?newValue:"", true, "unknown", 9999));
newLFF.Arguments.push_back(
cmListFileArgument(currentListFile, true, "unknown", 9999));
newLFF.Arguments.push_back(
cmListFileArgument(stack, true, "unknown", 9999));
newLFF.Name = command;
newLFF.FilePath = "Some weird path";
newLFF.Line = 9999;
cmExecutionStatus status;
if(!makefile->ExecuteCommand(newLFF,status))
{
arg.FilePath = "Unknown";
arg.Line = 0;
cmOStringStream error;
error << "Error in cmake code at\n"
<< arg.FilePath << ":" << arg.Line << ":\n"
<< "A command failed during the invocation of callback\""
<< command << "\".";
cmSystemTools::Error(error.str().c_str());
this->InCallback = false;
return;
}
processed = true;
}
if ( !processed )
{
cmOStringStream msg;
msg << "Variable \"" << variable.c_str() << "\" was accessed using "
<< accessString << " with value \"" << newValue << "\".";
makefile->IssueMessage(cmake::LOG, msg.str());
}
this->InCallback = false;
}
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