Source/cmIncludeDirectoryCommand.cxx

   1 /*=========================================================================
   2
   3   Program:   CMake - Cross-Platform Makefile Generator
   4   Module:    $RCSfile: cmIncludeDirectoryCommand.cxx,v $
   5   Language:  C++
   6   Date:      $Date: 2009-03-12 23:24:27 $
   7   Version:   $Revision: 1.31 $
   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 "cmIncludeDirectoryCommand.h"
  18
  19 // cmIncludeDirectoryCommand
  20 bool cmIncludeDirectoryCommand
  21 ::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
  22 {
  23   if(args.size() < 1 )
  24     {
  25     return true;
  26     }
  27
  28   std::vector<std::string>::const_iterator i = args.begin();
  29
  30   bool before = this->Makefile->IsOn("CMAKE_INCLUDE_DIRECTORIES_BEFORE");
  31   bool system = false;
  32
  33   if ((*i) == "BEFORE")
  34     {
  35     before = true;
  36     ++i;
  37     }
  38   else if ((*i) == "AFTER")
  39     {
  40     before = false;
  41     ++i;
  42     }
  43
  44   for(; i != args.end(); ++i)
  45     {
  46     if(*i == "SYSTEM")
  47       {
  48       system = true;
  49       continue;
  50       }
  51     if(i->size() == 0)
  52       {
  53       this->SetError("given empty-string as include directory.");
  54       return false;
  55       }
  56
  57     this->AddDirectory(i->c_str(),before,system);
  58
  59     }
  60   return true;
  61 }
  62
  63 // do a lot of cleanup on the arguments because this is one place where folks
  64 // sometimes take the output of a program and pass it directly into this
  65 // command not thinking that a single argument could be filled with spaces
  66 // and newlines etc liek below:
  67 //
  68 // "   /foo/bar
  69 //    /boo/hoo /dingle/berry "
  70 //
  71 // ideally that should be three seperate arguments but when sucking the
  72 // output from a program and passing it into a command the cleanup doesn't
  73 // always happen
  74 //
  75 void cmIncludeDirectoryCommand::AddDirectory(const char *i,
  76                                              bool before,
  77                                              bool system)
  78 {
  79   // break apart any line feed arguments
  80   std::string ret = i;
  81   std::string::size_type pos = 0;
  82   if((pos = ret.find('\n', pos)) != std::string::npos)
  83     {
  84     if (pos)
  85       {
  86       this->AddDirectory(ret.substr(0,pos).c_str(), before, system);
  87       }
  88     if (ret.size()-pos-1)
  89       {
  90       this->AddDirectory(ret.substr(pos+1,ret.size()-pos-1).c_str(),
  91                          before, system);
  92       }
  93     return;
  94     }
  95
  96   // remove any leading or trailing spaces and \r
  97   std::string::size_type b = ret.find_first_not_of(" \r");
  98   std::string::size_type e = ret.find_last_not_of(" \r");
  99   if ((b!=ret.npos) && (e!=ret.npos))
 100     {
 101     ret.assign(ret, b, 1+e-b);   // copy the remaining substring
 102     }
 103   else
 104     {
 105     return;         // if we get here, we had only whitespace in the string
 106     }
 107
 108   if (!cmSystemTools::IsOff(ret.c_str()))
 109     {
 110     cmSystemTools::ConvertToUnixSlashes(ret);
 111     if(!cmSystemTools::FileIsFullPath(ret.c_str()))
 112       {
 113       std::string tmp = this->Makefile->GetStartDirectory();
 114       tmp += "/";
 115       tmp += ret;
 116       ret = tmp;
 117       }
 118     }
 119   this->Makefile->AddIncludeDirectory(ret.c_str(), before);
 120   if(system)
 121     {
 122     this->Makefile->AddSystemIncludeDirectory(ret.c_str());
 123     }
 124 }
 125