141 lines
4.3 KiB
C++
141 lines
4.3 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2013 Stephen Kelly <steveire@gmail.com>
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#include "cmGeneratorExpressionEvaluationFile.h"
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#include "cmMakefile.h"
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#include "cmGeneratedFileStream.h"
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#include <cmsys/FStream.hxx>
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#include <assert.h>
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//----------------------------------------------------------------------------
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cmGeneratorExpressionEvaluationFile::cmGeneratorExpressionEvaluationFile(
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const std::string &input,
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cmsys::auto_ptr<cmCompiledGeneratorExpression> outputFileExpr,
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cmMakefile *makefile,
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cmsys::auto_ptr<cmCompiledGeneratorExpression> condition,
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bool inputIsContent)
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: Input(input),
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OutputFileExpr(outputFileExpr),
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Makefile(makefile),
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Condition(condition),
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InputIsContent(inputIsContent)
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{
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}
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//----------------------------------------------------------------------------
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void cmGeneratorExpressionEvaluationFile::Generate(const std::string& config,
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cmCompiledGeneratorExpression* inputExpression,
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std::map<std::string, std::string> &outputFiles)
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{
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std::string rawCondition = this->Condition->GetInput();
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if (!rawCondition.empty())
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{
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std::string condResult = this->Condition->Evaluate(this->Makefile, config);
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if (condResult == "0")
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{
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return;
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}
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if (condResult != "1")
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{
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cmOStringStream e;
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e << "Evaluation file condition \"" << rawCondition << "\" did "
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"not evaluate to valid content. Got \"" << condResult << "\".";
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this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
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return;
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}
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}
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const std::string outputFileName
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= this->OutputFileExpr->Evaluate(this->Makefile, config);
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const std::string outputContent
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= inputExpression->Evaluate(this->Makefile, config);
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std::map<std::string, std::string>::iterator it
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= outputFiles.find(outputFileName);
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if(it != outputFiles.end())
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{
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if (it->second == outputContent)
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{
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return;
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}
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cmOStringStream e;
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e << "Evaluation file to be written multiple times for different "
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"configurations with different content:\n " << outputFileName;
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this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
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return;
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}
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this->Files.push_back(outputFileName);
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outputFiles[outputFileName] = outputContent;
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cmGeneratedFileStream fout(outputFileName.c_str());
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fout.SetCopyIfDifferent(true);
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fout << outputContent;
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}
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//----------------------------------------------------------------------------
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void cmGeneratorExpressionEvaluationFile::Generate()
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{
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std::string inputContent;
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if (this->InputIsContent)
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{
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inputContent = this->Input;
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}
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else
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{
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cmsys::ifstream fin(this->Input.c_str());
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if(!fin)
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{
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cmOStringStream e;
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e << "Evaluation file \"" << this->Input << "\" cannot be read.";
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this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
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return;
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}
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std::string line;
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std::string sep;
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while(cmSystemTools::GetLineFromStream(fin, line))
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{
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inputContent += sep + line;
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sep = "\n";
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}
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inputContent += sep;
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}
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cmListFileBacktrace lfbt = this->OutputFileExpr->GetBacktrace();
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cmGeneratorExpression contentGE(lfbt);
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cmsys::auto_ptr<cmCompiledGeneratorExpression> inputExpression
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= contentGE.Parse(inputContent);
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std::map<std::string, std::string> outputFiles;
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std::vector<std::string> allConfigs;
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this->Makefile->GetConfigurations(allConfigs);
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if (allConfigs.empty())
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{
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allConfigs.push_back("");
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}
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for(std::vector<std::string>::const_iterator li = allConfigs.begin();
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li != allConfigs.end(); ++li)
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{
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this->Generate(*li, inputExpression.get(), outputFiles);
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if(cmSystemTools::GetFatalErrorOccured())
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{
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return;
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}
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}
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}
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