source: trunk/lib/Directory.cc @ 74

// $Id: Directory.cc 74 2006-03-07 15:46:59Z jari $

#include "Directory.h"
#include "File.h"
#include "Node.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 std::string& path, const std::string& output)
    : Node(path,output)
  {
    using namespace std;
    DIR* directory=opendir(path.c_str());    // C API from dirent.h
    if (!directory) {
      // Jari, throw exception
      cerr << "ERROR: opendir() failed; terminating" << endl;
      exit(1);
    }
    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) {
      // Jari, throw exception
      cerr << "ERROR: readdir() failure; terminating" << endl;
      exit(1);
    }
    closedir(directory);

    // Jari, change this to some STL algo?
    for (list<string>::iterator i=entries.begin(); i!=entries.end(); i++)
      if ((*i)!=string(".") && (*i)!=string("..") && (*i)!=string(".svn")) {
        string fullpath(path_+'/'+(*i));
        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(fullpath, output_name()+"_"));
        else
          daughters_.push_back(new File(fullpath,output_name()+"_"));
      }
  }


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


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

    for (NodeIterator i=daughters_.begin(); i!=daughters_.end(); i++)
      stats_ += (*i)->parse(verbose);
    return stats_;
  }


  void Directory::print(const bool verbose) const
  {
    std::string output(output_name() + ".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='" << stats_.plot(output_name()+".png")
       << "' alt='[plot]' border=0><br>\n";
    os << "<table>\n";
    os << "<tr><td><strong>Node</strong></td>\n";
    os << "<td><strong>Count</strong></td></tr>\n";
    os << "<tr><td>Total</td>\n";
    os << "<td align=right>" << stats_.rows() << "</td></tr>\n";
    // print html links to daughter nodes
    transform(daughters_.begin(), daughters_.end(), 
              std::ostream_iterator<std::string>(os," "), 
              std::mem_fun(&Node::html_tablerow));
    os << "</table>\n";
    os << "</p>";
    print_footer(os);
    os.close(); 

    // print daughter nodes, i.e, this function is recursive
    for (std::list<Node*>::const_iterator i=daughters_.begin();
         i!=daughters_.end(); i++)
      (*i)->print(verbose);
  }

  void Directory::purge(const bool verbose) 
  {
    if (verbose)
      std::cout << "Purging " << path_ << std::endl;
    for (NodeIterator i=daughters_.begin(); i!=daughters_.end(); )
      if (!((*i)->subversion_controlled())) {
        delete *i;
        i=daughters_.erase(i);
      }
      else {
        (*i)->purge(verbose);
        i++;
      }
  }

}} // end of namespace svnstat and namespace theplu