Source/cmIncludeCommand.cxx

   1 /*=========================================================================
   2
   3   Program:   CMake - Cross-Platform Makefile Generator
   4   Module:    $RCSfile: cmIncludeCommand.cxx,v $
   5   Language:  C++
   6   Date:      $Date: 2009-01-22 18:18:39 $
   7   Version:   $Revision: 1.22 $
   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   bool noPolicyScope = false;
  32   std::string fname = args[0];
  33   std::string resultVarName;
  34
  35   for (unsigned int i=1; i<args.size(); i++)
  36     {
  37     if (args[i] == "OPTIONAL")
  38       {
  39       if (optional)
  40         {
  41         this->SetError("called with invalid arguments: OPTIONAL used twice");
  42         return false;
  43         }
  44       optional = true;
  45       }
  46     else if(args[i] == "RESULT_VARIABLE")
  47       {
  48       if (resultVarName.size() > 0)
  49         {
  50         this->SetError("called with invalid arguments: "
  51             "only one result variable allowed");
  52         return false;
  53         }
  54       if(++i < args.size())
  55         {
  56         resultVarName = args[i];
  57         }
  58       else
  59         {
  60         this->SetError("called with no value for RESULT_VARIABLE.");
  61         return false;
  62         }
  63       }
  64     else if(args[i] == "NO_POLICY_SCOPE")
  65       {
  66       noPolicyScope = true;
  67       }
  68       else if(i > 1)  // compat.: in previous cmake versions the second
  69                       // parameter was ignore if it wasn't "OPTIONAL"
  70         {
  71         std::string errorText = "called with invalid argument: ";
  72         errorText += args[i];
  73         this->SetError(errorText.c_str());
  74         return false;
  75         }
  76     }
  77
  78   if(!cmSystemTools::FileIsFullPath(fname.c_str()))
  79     {
  80     // Not a path. Maybe module.
  81     std::string module = fname;
  82     module += ".cmake";
  83     std::string mfile = this->Makefile->GetModulesFile(module.c_str());
  84     if ( mfile.size() )
  85       {
  86       fname = mfile.c_str();
  87       }
  88     }
  89   std::string fullFilePath;
  90   bool readit =
  91     this->Makefile->ReadListFile( this->Makefile->GetCurrentListFile(),
  92                                   fname.c_str(), &fullFilePath,
  93                                   noPolicyScope);
  94
  95   // add the location of the included file if a result variable was given
  96   if (resultVarName.size())
  97     {
  98       this->Makefile->AddDefinition(resultVarName.c_str(),
  99                                     readit?fullFilePath.c_str():"NOTFOUND");
 100     }
 101
 102   if(!optional && !readit && !cmSystemTools::GetFatalErrorOccured())
 103     {
 104     std::string m =
 105       "could not find load file:\n"
 106       "  ";
 107     m += fname;
 108     this->SetError(m.c_str());
 109     return false;
 110     }
 111   return true;
 112 }
 113
 114