135 lines
4.1 KiB
C++
135 lines
4.1 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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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 "cmUseMangledMesaCommand.h"
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#include "cmSystemTools.h"
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#include <cmsys/RegularExpression.hxx>
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#include <cmsys/FStream.hxx>
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bool cmUseMangledMesaCommand
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::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
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{
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if(this->Disallowed(cmPolicies::CMP0030,
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"The use_mangled_mesa command should not be called; see CMP0030."))
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{ return true; }
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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);
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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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cmsys::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 operation: ",
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tempOutputFile.c_str(), outdir);
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cmSystemTools::ReportLastSystemError("");
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return;
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}
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cmsys::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 operation",
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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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std::string inLine;
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// regular expression for any #include line
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cmsys::RegularExpression includeLine(
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"^[ \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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cmsys::RegularExpression 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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cmsys::RegularExpression glLine("(gl|GL|xmesa)");
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while(cmSystemTools::GetLineFromStream(fin,inLine))
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{
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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 << "\"\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 << "/" <<
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includeLine.match(1) << "\"\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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// 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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