CMakeLua/Source/cmGetFilenameComponentCommand.cxx

   1 /*=========================================================================
   2
   3   Program:   CMake - Cross-Platform Makefile Generator
   4   Module:    $RCSfile: cmGetFilenameComponentCommand.cxx,v $
   5   Language:  C++
   6   Date:      $Date: 2009-02-09 14:23:55 $
   7   Version:   $Revision: 1.20 $
   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 "cmGetFilenameComponentCommand.h"
  18 #include "cmSystemTools.h"
  19
  20 // cmGetFilenameComponentCommand
  21 bool cmGetFilenameComponentCommand
  22 ::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
  23 {
  24   if(args.size() < 3)
  25     {
  26     this->SetError("called with incorrect number of arguments");
  27     return false;
  28     }
  29
  30   // Check and see if the value has been stored in the cache
  31   // already, if so use that value
  32   if(args.size() == 4 && args[3] == "CACHE")
  33     {
  34     const char* cacheValue = this->Makefile->GetDefinition(args[0].c_str());
  35     if(cacheValue && !cmSystemTools::IsNOTFOUND(cacheValue))
  36       {
  37       return true;
  38       }
  39     }
  40
  41   std::string result;
  42   std::string filename = args[1];
  43   cmSystemTools::ExpandRegistryValues(filename);
  44   std::string storeArgs;
  45   std::string programArgs;
  46   if (args[2] == "PATH")
  47     {
  48     result = cmSystemTools::GetFilenamePath(filename);
  49     }
  50   else if (args[2] == "NAME")
  51     {
  52     result = cmSystemTools::GetFilenameName(filename);
  53     }
  54   else if (args[2] == "PROGRAM")
  55     {
  56     for(unsigned int i=2; i < args.size(); ++i)
  57       {
  58       if(args[i] == "PROGRAM_ARGS")
  59         {
  60         i++;
  61         if(i < args.size())
  62           {
  63           storeArgs = args[i];
  64           }
  65         }
  66       }
  67     cmSystemTools::SplitProgramFromArgs(filename.c_str(),
  68                                         result, programArgs);
  69     }
  70   else if (args[2] == "EXT")
  71     {
  72     result = cmSystemTools::GetFilenameExtension(filename);
  73     }
  74   else if (args[2] == "NAME_WE")
  75     {
  76     result = cmSystemTools::GetFilenameWithoutExtension(filename);
  77     }
  78   else if (args[2] == "ABSOLUTE" ||
  79            args[2] == "REALPATH")
  80     {
  81     // If the path given is relative evaluate it relative to the
  82     // current source directory.
  83     if(!cmSystemTools::FileIsFullPath(filename.c_str()))
  84       {
  85       std::string fname = this->Makefile->GetCurrentDirectory();
  86       if(!fname.empty())
  87         {
  88         fname += "/";
  89         fname += filename;
  90         filename = fname;
  91         }
  92       }
  93
  94     // Collapse the path to its simplest form.
  95     result = cmSystemTools::CollapseFullPath(filename.c_str());
  96     if(args[2] == "REALPATH")
  97       {
  98       // Resolve symlinks if possible
  99       result = cmSystemTools::GetRealPath(filename.c_str());
 100       }
 101     }
 102   else
 103     {
 104     std::string err = "unknown component " + args[2];
 105     this->SetError(err.c_str());
 106     return false;
 107     }
 108
 109   if(args.size() == 4 && args[3] == "CACHE")
 110     {
 111     if(programArgs.size() && storeArgs.size())
 112       {
 113       this->Makefile->AddCacheDefinition
 114         (storeArgs.c_str(), programArgs.c_str(),
 115          "", args[2] == "PATH" ? cmCacheManager::FILEPATH
 116          : cmCacheManager::STRING);
 117       }
 118     this->Makefile->AddCacheDefinition
 119       (args[0].c_str(), result.c_str(), "",
 120        args[2] == "PATH" ? cmCacheManager::FILEPATH
 121        : cmCacheManager::STRING);
 122     }
 123   else
 124     {
 125     if(programArgs.size() && storeArgs.size())
 126       {
 127       this->Makefile->AddDefinition(storeArgs.c_str(), programArgs.c_str());
 128       }
 129     this->Makefile->AddDefinition(args[0].c_str(), result.c_str());
 130     }
 131
 132   return true;
 133 }
 134