/*
 *
 * Copyright (c) 2003 Dr John Maddock
 * Use, modification and distribution is subject to the 
 * Boost Software License, Version 1.0. (See accompanying file 
 * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 *
 * This file implements the following:
 *    void bcp_implementation::scan_cvs_path(const fs::path& p)
 */



#include "bcp_imp.hpp"
#include "fileview.hpp"
#include <boost/regex.hpp>
#include <boost/filesystem/operations.hpp>
#include <boost/detail/workaround.hpp>

void bcp_implementation::scan_cvs_path(const fs::path& p)
{
   //
   // scan through the cvs admin files to build a list
   // of all the files under cvs version control
   // and whether they are text or binary:
   //
   static const char* file_list[] = { "CVS/Entries", "CVS/Entries.Log" };
   static const boost::regex file_expression("^(?:A\\s+)?/([^/\\n]+)/[^/\\n]*/[^/\\n]*/[^k/\\n]*(kb[^/\\n]*)?/[^/\\n]*");
   static const boost::regex dir_expression("^(?:A\\s+)?D/([^/\\n]+)/");
   static const int file_subs[] = {1,2,};

   for(int entry = 0; entry < sizeof(file_list)/sizeof(file_list[0]); ++entry)
   {
      fs::path entries(m_boost_path / p / file_list[entry]);
      if(fs::exists(entries))
      {
         fileview view(entries);
         boost::regex_token_iterator<const char*> i(view.begin(), view.end(), dir_expression, 1);
         boost::regex_token_iterator<const char*> j;
         while(i != j)
         {
            fs::path recursion_dir(p / i->str());
            scan_cvs_path(recursion_dir);
            ++i;
         }
   #if BOOST_WORKAROUND(BOOST_MSVC, < 1300) || BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x570))
         std::vector<int> v(file_subs, file_subs + 2);
         i = boost::regex_token_iterator<const char*>(view.begin(), view.end(), file_expression, v);
   #else
         i = boost::regex_token_iterator<const char*>(view.begin(), view.end(), file_expression, file_subs);
   #endif
         while(i != j)
         {
            fs::path file = p / i->str();
            ++i;
            bool binary = i->length() ? true : false;
            ++i;
            m_cvs_paths[file] = binary;
         }

      }
   }
}