source: trunk/lib/SVNlog.cc @ 452

// $Id: SVNlog.cc 452 2007-08-17 19:03:32Z peter $

/*
  Copyright (C) 2007 Jari Häkkinen, Peter Johansson

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

  svndigest 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.

  svndigest 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 "SVNlog.h"

#include "Commitment.h"
#include "LogIterator.h"
#include "SVN.h"

#include <algorithm>
#include <cassert>
#include <string>
#include <vector>

namespace theplu {
namespace svndigest {


  SVNlog::SVNlog(void)
  {
    assert(date().empty());
    assert(author().empty());
    assert(revision().empty());
    assert(message().empty());
  }


  SVNlog::SVNlog(const std::string& path)
  {
    SVN::instance()->client_log(path, log_message_receiver,
                                static_cast<void*>(&lb_));
    assert(date().size()==author().size());
    assert(date().size()==revision().size());
    assert(date().size()==message().size());
  }


  SVNlog::~SVNlog(void)
  {
  }

  
  LogIterator SVNlog::begin() const
  {
    return LogIterator(*this, 0);
  }


  LogIterator SVNlog::end() const
  {
    return LogIterator(*this, revision().size());
  }


  bool SVNlog::exist(std::string name) const
  {
    std::vector<std::string>::const_reverse_iterator iter = 
      find(author().rbegin(), author().rend(), name);
    return iter!=author().rend();
  }


  Commitment SVNlog::latest_commit(void) const
  {
    return Commitment(author().back(), date().back(), 
                      message().back(), revision().back());
                                             
  }


  Commitment SVNlog::latest_commit(std::string name) const
  {
    std::vector<std::string>::const_reverse_iterator iter = 
      find(author().rbegin(), author().rend(), name);
    size_t dist(std::distance(iter, author().rend()));
    if (!dist) {
      Commitment c;
      assert(false);
      return c;
    }
    return Commitment(author()[dist-1], date()[dist-1], 
                      message()[dist-1], revision()[dist-1]);
                                             
  }


  void SVNlog::push_back(const Commitment& c)
  {
    lb_.authors.push_back(c.author());
    lb_.commit_dates.push_back(c.date());
    lb_.msg.push_back(c.message());
    lb_.rev.push_back(c.revision());
  }


  void SVNlog::reserve(size_t i)
  {
    lb_.authors.reserve(i);
    lb_.commit_dates.reserve(i);
    lb_.msg.reserve(i);
    lb_.rev.reserve(i);
  }


  svn_error_t* 
  SVNlog::log_message_receiver(void *baton, apr_hash_t *changed_paths,
                               svn_revnum_t rev, const char *author,
                               const char *date, const char *msg,
                               apr_pool_t *pool)
  {
    struct log_receiver_baton *lb=static_cast<struct log_receiver_baton*>(baton);
    if (date && date[0])
      lb->commit_dates.push_back(date);
    else
      throw SVNException("No date defined for revision: " + rev); 
    if (author && author[0])
      lb->authors.push_back(author);
    else
      lb->authors.push_back("");
    lb->rev.push_back(rev);
    if (msg)
      lb->msg.push_back(std::string(msg));
    else
      lb->msg.push_back(std::string(""));
    return SVN_NO_ERROR;
  }


  void SVNlog::swap(SVNlog& rhs)
  {
    lb_.authors.swap(rhs.lb_.authors);
    lb_.commit_dates.swap(rhs.lb_.commit_dates);
    lb_.msg.swap(rhs.lb_.msg);
    lb_.rev.swap(rhs.lb_.rev);
  }


  SVNlog& operator+=(SVNlog& lhs, const SVNlog& rhs)
  {
    SVNlog log;
    LogIterator lhs_iter(lhs.begin());
    LogIterator rhs_iter(rhs.begin());
    while(lhs_iter<lhs.end() && rhs_iter<rhs.end()) {
      if (lhs_iter->revision() < rhs_iter->revision()) {
        
        log.push_back(*lhs_iter);
        ++lhs_iter;
      }
      else if (rhs_iter->revision()<lhs_iter->revision()) {
        log.push_back(*rhs_iter);
        ++rhs_iter;
      }
      else {
        log.push_back(*lhs_iter);
        ++lhs_iter;
        ++rhs_iter;
      }
    }
    while(lhs_iter<lhs.end()) {
        log.push_back(*lhs_iter);
        ++lhs_iter;
    }
    while(rhs_iter<rhs.end()) {
        log.push_back(*rhs_iter);
        ++rhs_iter;
    }
    lhs.swap(log);
    return lhs;
  }

}} // end of namespace svndigest and namespace theplu