138 lines
4.1 KiB
C++
138 lines
4.1 KiB
C++
/*=========================================================================
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Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile$
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Language: C++
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Date: $Date$
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Version: $Revision$
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Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#include "cmUseMangledMesaCommand.h"
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#include "cmSystemTools.h"
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// cmUseMangledMesaCommand
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bool cmUseMangledMesaCommand::InitialPass(std::vector<std::string> const& args)
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{
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// expected two arguments:
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// arguement one: the full path to gl_mangle.h
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// arguement two : directory for output of edited headers
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if(args.size() != 2)
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{
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this->SetError("called with incorrect number of arguments");
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return false;
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}
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const char* inputDir = args[0].c_str();
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std::string glh = inputDir;
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glh += "/";
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glh += "gl.h";
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if(!cmSystemTools::FileExists(glh.c_str()))
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{
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std::string e = "Bad path to Mesa, could not find: ";
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e += glh;
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e += " ";
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this->SetError(e.c_str());
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return false;
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}
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const char* destDir = args[1].c_str();
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std::vector<std::string> files;
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cmSystemTools::Glob(inputDir, "\\.h$", files);
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if(files.size() == 0)
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{
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cmSystemTools::Error("Could not open Mesa Directory ", inputDir);
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return false;
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}
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cmSystemTools::MakeDirectory(destDir);
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for(std::vector<std::string>::iterator i = files.begin();
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i != files.end(); ++i)
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{
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std::string path = inputDir;
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path += "/";
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path += *i;
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this->CopyAndFullPathMesaHeader(path.c_str(), destDir);
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}
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return true;
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}
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void
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cmUseMangledMesaCommand::
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CopyAndFullPathMesaHeader(const char* source,
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const char* outdir)
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{
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std::string dir, file;
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cmSystemTools::SplitProgramPath(source, dir, file);
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std::string outFile = outdir;
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outFile += "/";
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outFile += file;
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std::string tempOutputFile = outFile;
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tempOutputFile += ".tmp";
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std::ofstream fout(tempOutputFile.c_str());
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if(!fout)
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{
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cmSystemTools::Error("Could not open file for write in copy operatation: ",
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tempOutputFile.c_str(), outdir);
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return;
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}
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std::ifstream fin(source);
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if(!fin)
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{
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cmSystemTools::Error("Could not open file for read in copy operatation",
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source);
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return;
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}
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// now copy input to output and expand variables in the
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// input file at the same time
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const int bufSize = 4096;
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char buffer[bufSize];
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std::string inLine;
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// regular expression for any #include line
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cmRegularExpression includeLine("^[ \t]*#[ \t]*include[ \t]*[<\"]([^\">]+)[\">]");
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// regular expression for gl/ or GL/ in a file (match(1) of above)
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cmRegularExpression glDirLine("(gl|GL)(/|\\\\)([^<\"]+)");
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// regular expression for gl GL or xmesa in a file (match(1) of above)
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cmRegularExpression glLine("(gl|GL|xmesa)");
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while(fin)
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{
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fin.getline(buffer, bufSize);
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if(fin)
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{
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inLine = buffer;
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if(includeLine.find(inLine.c_str()))
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{
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std::string includeFile = includeLine.match(1);
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if(glDirLine.find(includeFile.c_str()))
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{
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std::string gfile = glDirLine.match(3);
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fout << "#include \"" << outdir << "/" << gfile.c_str() << "\"\n";
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}
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else if(glLine.find(includeFile.c_str()))
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{
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fout << "#include \"" << outdir << "/" << includeLine.match(1).c_str() << "\"\n";
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}
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else
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{
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fout << inLine << "\n";
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}
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}
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else
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{
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fout << inLine << "\n";
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}
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}
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}
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// close the files before attempting to copy
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fin.close();
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fout.close();
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cmSystemTools::CopyFileIfDifferent(tempOutputFile.c_str(),
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outFile.c_str());
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cmSystemTools::RemoveFile(tempOutputFile.c_str());
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}
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