source: trunk/lib/Directory.cc @ 126

// $Id: Directory.cc 126 2006-08-01 23:05:52Z jari $

/*
  Copyright (C) 2005, 2006 Jari Häkkinen, Peter Johansson

  This file is part of svnstat, http://lev.thep.lu.se/trac/svnstat

  svnstat is free software; you can redistribute it and/or modify it
  under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  svnstat is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  02111-1307, USA.
*/

#include "Directory.h"
#include "File.h"
#include "Node.h"
#include "SVN.h"
#include "utility.h"

#include <algorithm>
#include <fstream>
#include <functional>
#include <iostream>
#include <iterator>
#include <list>

#include <cerrno> // Needed to check error state below.
#include <dirent.h>
#include <sys/stat.h>

namespace theplu{
namespace svnstat{


  Directory::Directory(const u_int level, const std::string& path, 
                       const std::string& output)
    : Node(level,path,output)
  {
    using namespace std;
    DIR* directory=opendir(path.c_str());    // C API from dirent.h
    if (!directory)
      throw NodeException("ERROR: opendir() failed; " + path +
                          " is not a directory");
    list<string> entries;
    struct dirent* entry;
    errno=0;  // Global variable used by C to track errors, from errno.h
    while ((entry=readdir(directory)))       // C API from dirent.h
      entries.push_back(string(entry->d_name));
    if (errno)
      throw NodeException("ERROR: readdir() failed on " + path);
    closedir(directory);

    SVN* svn=SVN::instance();
    for (list<string>::iterator i=entries.begin(); i!=entries.end(); i++)
      if ((*i)!=string(".") && (*i)!=string("..") && (*i)!=string(".svn")) {
        string fullpath(path_+'/'+(*i));
        switch (svn->version_controlled(fullpath)) {
        case SVN::uptodate:
          struct stat nodestat;                // C api from sys/stat.h
          lstat(fullpath.c_str(),&nodestat);   // C api from sys/stat.h
          if (S_ISDIR(nodestat.st_mode))       // C api from sys/stat.h
            daughters_.push_back(new Directory(level_+1,fullpath, 
                                               output_name()+"/"));
          else
            daughters_.push_back(new File(level_,fullpath,output_name()+"/"));
          break;
        case SVN::unresolved:
          throw NodeException(fullpath+" is not up to date");
        case SVN::unversioned: ; // do nothing
        }
      }
    daughters_.sort(NodePtrLess());
  }


  Directory::~Directory(void)
  {
    for (NodeIterator i=daughters_.begin(); i!=daughters_.end(); i++)
      delete *i;
  }

  std::string Directory::author(void) const
  {
    std::string a;
    u_int max_rev=0;
    for (NodeConstIterator i=daughters_.begin(); i!=daughters_.end(); i++)
      if ((*i)->last_changed_rev()>max_rev){
        max_rev = (*i)->last_changed_rev();
        a = (*i)->author();
      }
    return a;
  }

  bool Directory::dir(void) const
  {
    return true;
  }

  std::string Directory::html_link(void) const
  { 
    return "<a href=\"" + name() + "/index.html\">" + name() + "</a>"; 
  }

  u_int Directory::last_changed_rev(void) const
  {
    u_int max_rev=0;
    for (NodeConstIterator i=daughters_.begin(); i!=daughters_.end(); i++)
      if ((*i)->last_changed_rev()>max_rev)
        max_rev = (*i)->last_changed_rev();
    return max_rev;
  }

  const Stats& Directory::parse(const bool verbose)
  {
    stats_.reset();

    // Directories give no contribution to statistics.
    for (NodeIterator i=daughters_.begin(); i!=daughters_.end(); i++)
      stats_ += (*i)->parse(verbose);
    return stats_;
  }


  void Directory::print(const bool verbose) const
  {
    mkdir(output_name());
    std::string output(output_name() + "/index.html");
    if (verbose)
      std::cout << "Printing output for " << path_ << std::endl;
    std::ofstream os(output.c_str());
    print_header(os);
    os << "<p align=center>\n<img src='" 
       << file_name(stats_.plot(output_name()+"/index.png", output_name()))
       << "' alt='[plot]' border=0><br>\n";
    os << "<table class=\"listings\">\n";
    os << "<thead>";
    os << "<tr>\n";
    os << "<th>Node</th>\n";
    os << "<th>Lines</th>\n";
    os << "<th>Code</th>\n";
    os << "<th>Comments</th>\n";
    os << "<th>Revision</th>\n";
    os << "<th>Author</th>\n";
    os << "</tr>\n</thead>\n";
    os << "<tbody>";

    bool dark=false;
    if (level_){
      os << "<tr class=\"light\">\n";
      os << "<td colspan=\"6\"><a href=\"../index.html\">../</a></td>\n";
      os << "</tr>\n";
      dark=!dark;
    }

    // print html links to daughter nodes
    for (NodeConstIterator d = daughters_.begin(); d!=daughters_.end(); d++){
      if (dark)
        os << (*d)->html_tablerow("dark");
      else
        os << (*d)->html_tablerow("light");
      dark = !dark;
    }
    if (dark)
      os << "<tr class=\"dark\">\n";
    else
      os << "<tr class=\"light\">\n";
    os << "<td>Total</td>\n";
    os << "<td>" << stats_.lines() << "</td>\n";
    os << "<td>" << stats_.code() << "</td>\n";
    os << "<td>" << stats_.comments() << "</td>\n";
    os << "<td>" << stats_.last_changed_rev() << "</td>\n";
    os << "<td>" << author() << "</td>\n";
    os << "</tr>\n";
    os << "</table>\n";
    os << "</p>\n";
    print_footer(os);
    os.close(); 

    // print daughter nodes, i.e, this function is recursive
    std::for_each(daughters_.begin(), daughters_.end(),
                  std::bind2nd(std::mem_fun(&Node::print),verbose));
  }

}} // end of namespace svnstat and namespace theplu