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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2013 Stephen Kelly <steveire@gmail.com>
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 "cmGeneratorExpressionEvaluationFile.h"
#include "cmMakefile.h"
#include "cmGeneratedFileStream.h"
#include <cmsys/FStream.hxx>
#include <assert.h>
//----------------------------------------------------------------------------
cmGeneratorExpressionEvaluationFile::cmGeneratorExpressionEvaluationFile(
const std::string &input,
cmsys::auto_ptr<cmCompiledGeneratorExpression> outputFileExpr,
cmMakefile *makefile,
cmsys::auto_ptr<cmCompiledGeneratorExpression> condition,
bool inputIsContent)
: Input(input),
OutputFileExpr(outputFileExpr),
Makefile(makefile),
Condition(condition),
InputIsContent(inputIsContent)
{
}
//----------------------------------------------------------------------------
void cmGeneratorExpressionEvaluationFile::Generate(const std::string& config,
cmCompiledGeneratorExpression* inputExpression,
std::map<std::string, std::string> &outputFiles)
{
std::string rawCondition = this->Condition->GetInput();
if (!rawCondition.empty())
{
std::string condResult = this->Condition->Evaluate(this->Makefile, config);
if (condResult == "0")
{
return;
}
if (condResult != "1")
{
cmOStringStream e;
e << "Evaluation file condition \"" << rawCondition << "\" did "
"not evaluate to valid content. Got \"" << condResult << "\".";
this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
return;
}
}
const std::string outputFileName
= this->OutputFileExpr->Evaluate(this->Makefile, config);
const std::string outputContent
= inputExpression->Evaluate(this->Makefile, config);
std::map<std::string, std::string>::iterator it
= outputFiles.find(outputFileName);
if(it != outputFiles.end())
{
if (it->second == outputContent)
{
return;
}
cmOStringStream e;
e << "Evaluation file to be written multiple times for different "
"configurations with different content:\n " << outputFileName;
this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
return;
}
this->Files.push_back(outputFileName);
outputFiles[outputFileName] = outputContent;
cmGeneratedFileStream fout(outputFileName.c_str());
fout.SetCopyIfDifferent(true);
fout << outputContent;
}
//----------------------------------------------------------------------------
void cmGeneratorExpressionEvaluationFile::Generate()
{
std::string inputContent;
if (this->InputIsContent)
{
inputContent = this->Input;
}
else
{
cmsys::ifstream fin(this->Input.c_str());
if(!fin)
{
cmOStringStream e;
e << "Evaluation file \"" << this->Input << "\" cannot be read.";
this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
return;
}
std::string line;
std::string sep;
while(cmSystemTools::GetLineFromStream(fin, line))
{
inputContent += sep + line;
sep = "\n";
}
inputContent += sep;
}
cmListFileBacktrace lfbt = this->OutputFileExpr->GetBacktrace();
cmGeneratorExpression contentGE(&lfbt);
cmsys::auto_ptr<cmCompiledGeneratorExpression> inputExpression
= contentGE.Parse(inputContent);
std::map<std::string, std::string> outputFiles;
std::vector<std::string> allConfigs;
this->Makefile->GetConfigurations(allConfigs);
if (allConfigs.empty())
{
allConfigs.push_back("");
}
for(std::vector<std::string>::const_iterator li = allConfigs.begin();
li != allConfigs.end(); ++li)
{
this->Generate(*li, inputExpression.get(), outputFiles);
if(cmSystemTools::GetFatalErrorOccured())
{
return;
}
}
}
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