/*========================================================================= 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 "cmUseMangledMesaCommand.h" #include "cmSystemTools.h" #include <cmsys/RegularExpression.hxx> // cmUseMangledMesaCommand bool cmUseMangledMesaCommand ::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &) { // expected two arguments: // arguement one: the full path to gl_mangle.h // arguement two : directory for output of edited headers if(args.size() != 2) { this->SetError("called with incorrect number of arguments"); return false; } const char* inputDir = args[0].c_str(); std::string glh = inputDir; glh += "/"; glh += "gl.h"; if(!cmSystemTools::FileExists(glh.c_str())) { std::string e = "Bad path to Mesa, could not find: "; e += glh; e += " "; this->SetError(e.c_str()); return false; } const char* destDir = args[1].c_str(); std::vector<std::string> files; cmSystemTools::Glob(inputDir, "\\.h$", files); if(files.size() == 0) { cmSystemTools::Error("Could not open Mesa Directory ", inputDir); return false; } cmSystemTools::MakeDirectory(destDir); for(std::vector<std::string>::iterator i = files.begin(); i != files.end(); ++i) { std::string path = inputDir; path += "/"; path += *i; this->CopyAndFullPathMesaHeader(path.c_str(), destDir); } return true; } void cmUseMangledMesaCommand:: CopyAndFullPathMesaHeader(const char* source, const char* outdir) { std::string dir, file; cmSystemTools::SplitProgramPath(source, dir, file); std::string outFile = outdir; outFile += "/"; outFile += file; std::string tempOutputFile = outFile; tempOutputFile += ".tmp"; std::ofstream fout(tempOutputFile.c_str()); if(!fout) { cmSystemTools::Error("Could not open file for write in copy operation: ", tempOutputFile.c_str(), outdir); cmSystemTools::ReportLastSystemError(""); return; } std::ifstream fin(source); if(!fin) { cmSystemTools::Error("Could not open file for read in copy operation", source); return; } // now copy input to output and expand variables in the // input file at the same time std::string inLine; // regular expression for any #include line cmsys::RegularExpression includeLine( "^[ \t]*#[ \t]*include[ \t]*[<\"]([^\">]+)[\">]"); // regular expression for gl/ or GL/ in a file (match(1) of above) cmsys::RegularExpression glDirLine("(gl|GL)(/|\\\\)([^<\"]+)"); // regular expression for gl GL or xmesa in a file (match(1) of above) cmsys::RegularExpression glLine("(gl|GL|xmesa)"); while(cmSystemTools::GetLineFromStream(fin,inLine)) { if(includeLine.find(inLine.c_str())) { std::string includeFile = includeLine.match(1); if(glDirLine.find(includeFile.c_str())) { std::string gfile = glDirLine.match(3); fout << "#include \"" << outdir << "/" << gfile.c_str() << "\"\n"; } else if(glLine.find(includeFile.c_str())) { fout << "#include \"" << outdir << "/" << includeLine.match(1).c_str() << "\"\n"; } else { fout << inLine << "\n"; } } else { fout << inLine << "\n"; } } // close the files before attempting to copy fin.close(); fout.close(); cmSystemTools::CopyFileIfDifferent(tempOutputFile.c_str(), outFile.c_str()); cmSystemTools::RemoveFile(tempOutputFile.c_str()); }