Source/cmIncludeCommand.cxx

   1 /*=========================================================================
   2
   3   Program:   CMake - Cross-Platform Makefile Generator
   4   Module:    $RCSfile: cmIncludeCommand.cxx,v $
   5   Language:  C++
   6   Date:      $Date: 2008-03-08 14:27:44 $
   7   Version:   $Revision: 1.21 $
   8
   9   Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
  10   See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
  11
  12      This software is distributed WITHOUT ANY WARRANTY; without even
  13      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  14      PURPOSE.  See the above copyright notices for more information.
  15
  16 =========================================================================*/
  17 #include "cmIncludeCommand.h"
  18
  19
  20 // cmIncludeCommand
  21 bool cmIncludeCommand
  22 ::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
  23 {
  24   if (args.size()< 1 || args.size() > 4)
  25     {
  26       this->SetError("called with wrong number of arguments.  "
  27                      "Include only takes one file.");
  28       return false;
  29     }
  30   bool optional = false;
  31   std::string fname = args[0];
  32   std::string resultVarName;
  33
  34   for (unsigned int i=1; i<args.size(); i++)
  35     {
  36     if (args[i] == "OPTIONAL")
  37       {
  38       if (optional)
  39         {
  40         this->SetError("called with invalid arguments: OPTIONAL used twice");
  41         return false;
  42         }
  43       optional = true;
  44       }
  45     else if(args[i] == "RESULT_VARIABLE")
  46       {
  47       if (resultVarName.size() > 0)
  48         {
  49         this->SetError("called with invalid arguments: "
  50             "only one result variable allowed");
  51         return false;
  52         }
  53       if(++i < args.size())
  54         {
  55         resultVarName = args[i];
  56         }
  57       else
  58         {
  59         this->SetError("called with no value for RESULT_VARIABLE.");
  60         return false;
  61         }
  62       }
  63       else if(i > 1)  // compat.: in previous cmake versions the second
  64                       // parameter was ignore if it wasn't "OPTIONAL"
  65         {
  66         std::string errorText = "called with invalid argument: ";
  67         errorText += args[i];
  68         this->SetError(errorText.c_str());
  69         return false;
  70         }
  71     }
  72
  73   if(!cmSystemTools::FileIsFullPath(fname.c_str()))
  74     {
  75     // Not a path. Maybe module.
  76     std::string module = fname;
  77     module += ".cmake";
  78     std::string mfile = this->Makefile->GetModulesFile(module.c_str());
  79     if ( mfile.size() )
  80       {
  81       fname = mfile.c_str();
  82       }
  83     }
  84   std::string fullFilePath;
  85   bool readit =
  86     this->Makefile->ReadListFile( this->Makefile->GetCurrentListFile(),
  87                                   fname.c_str(), &fullFilePath );
  88
  89   // add the location of the included file if a result variable was given
  90   if (resultVarName.size())
  91     {
  92       this->Makefile->AddDefinition(resultVarName.c_str(),
  93                                     readit?fullFilePath.c_str():"NOTFOUND");
  94     }
  95
  96   if(!optional && !readit && !cmSystemTools::GetFatalErrorOccured())
  97     {
  98     std::string m =
  99       "could not find load file:\n"
 100       "  ";
 101     m += fname;
 102     this->SetError(m.c_str());
 103     return false;
 104     }
 105   return true;
 106 }
 107
 108