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-rw-r--r--Source/cmUseMangledMesaCommand.cxx131
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diff --git a/Source/cmUseMangledMesaCommand.cxx b/Source/cmUseMangledMesaCommand.cxx
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+/*============================================================================
+ CMake - Cross Platform Makefile Generator
+ Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
+
+ 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 "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());
+}
+