includes/cachev.php

   1 <?php
   2 /*=====================================================================*\
   3 || ###################################################################
   4 || # ViewSVN [#]version[#]
   5 || # Copyright ©2002-[#]year[#] Iris Studios, Inc.
   6 || #
   7 || # This program is free software; you can redistribute it and/or modify
   8 || # it under the terms of the GNU General Public License as published by
   9 || # the Free Software Foundation; version [#]gpl[#] of the License.
  10 || #
  11 || # This program is distributed in the hope that it will be useful, but
  12 || # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13 || # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  14 || # more details.
  15 || #
  16 || # You should have received a copy of the GNU General Public License along
  17 || # with this program; if not, write to the Free Software Foundation, Inc.,
  18 || # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  19 || ###################################################################
  20 \*=====================================================================*/
  21
  22 /**
  23 * File container for cacheV class
  24 *
  25 * @package      ViewSVN
  26 */
  27
  28 /**
  29 * cacheV
  30 *
  31 * This class is responsible for interacting with a given cacheV table.
  32 * It controls rebuilding from scratch, updates, and querying the cache.
  33 *
  34 * @author               Iris Studios, Inc.
  35 * @copyright    Copyright ©2002 - [#]year[#], Iris Studios, Inc.
  36 * @version              $Revision$
  37 * @package              ViewSVN
  38 *
  39 */
  40 class cacheV
  41 {
  42         /**
  43         * Controller
  44         * @var  object
  45         * @access       private
  46         */
  47         var $controller = null;
  48
  49         /**
  50         * cacheV hash
  51         * @var  string
  52         */
  53         var $hash;
  54
  55         /**
  56         * Record count - the number of records in cacheV
  57         * @var  integer
  58         */
  59         var $count;
  60
  61         /**
  62         * Memcache for all fetched revisions so we don't have to query-dupe
  63         * @var  array
  64         */
  65         var $memcache = array('revs' => array(), 'nodes' => array());
  66
  67         // ###################################################################
  68         /**
  69         * Constructor: initialies the registry
  70         *
  71         * @param        object  Controller
  72         */
  73         function cacheV(&$controller)
  74         {
  75                 $this->controller =& $controller;
  76                 $this->set_hash();
  77         }
  78
  79         // ###################################################################
  80         /**
  81         * Sets the hash so we know what table we're dealing with
  82         *
  83         * @access       public
  84         */
  85         function set_hash()
  86         {
  87                 $this->hash = md5($this->controller->repospath);
  88         }
  89
  90         // ###################################################################
  91         /**
  92         * Returns a node string that has the beginning and ending slashes
  93         * removed to allow it to match to the _nodes cacheV table
  94         *
  95         * @access       public
  96         *
  97         * @param        string  Original string
  98         *
  99         * @return       string  Matchable string
 100         */
 101         function fetch_node_string($node)
 102         {
 103                 return preg_replace('#(^/|/$)#', '', $node);
 104         }
 105
 106         // ###################################################################
 107         /**
 108         * Returns a specific log entry
 109         *
 110         * @access       public
 111         *
 112         * @param        integer Revision number
 113         *
 114         * @return       array   Complete revision/commit entry
 115         */
 116         function fetch_revision($revision)
 117         {
 118                 $revision = $this->controller->registry->clean($revision, TYPE_UINT);
 119
 120                 if (!isset($this->memcache['revs']["$revision"]))
 121                 {
 122                         $this->memcache['revs']["$revision"] = $this->controller->registry->db->query_first("SELECT * FROM {$this->hash}_revs " . ($revision == 0 ? " ORDER BY revision DESC LIMIT 1" : "WHERE revision = $revision"));
 123                         $this->memcache['revs']["$revision"]['files'] = unserialize($this->memcache['revs']["$revision"]['files']);
 124                 }
 125
 126                 return $this->memcache['revs']["$revision"];
 127         }
 128
 129         // ###################################################################
 130         /**
 131         * Returns the revision entry before the specified one
 132         *
 133         * @access       public
 134         *
 135         * @param        string  Node path
 136         * @param        integer Revision number
 137         *
 138         * @return       array   Complete revision/commit entry
 139         */
 140         function fetch_prev_revision($node, $revision)
 141         {
 142                 $data = $this->fetch_node($node);
 143                 $data = $data['history'];
 144
 145                 if (count($data['history']) < 1)
 146                 {
 147                         return $this->fetch_revision(0);
 148                 }
 149
 150                 unset($data[ max(array_keys($data)) ]);
 151
 152                 return $this->fetch_revision(max(array_keys($data)));
 153         }
 154
 155         // ###################################################################
 156         /**
 157         * Fetches the latest revision for a given path
 158         *
 159         * @access       public
 160         *
 161         * @param        string  Node path
 162         *
 163         * @return       integer Latest revision; FALSE if none (not in HEAD)
 164         */
 165         function fetch_node($node)
 166         {
 167                 $node = $this->fetch_node_string($node);
 168                 if (!isset($this->memcache['nodes']["$node"]))
 169                 {
 170                         $result = $this->controller->registry->db->query_first("SELECT * FROM {$this->hash}_nodes WHERE name = '" . $this->controller->registry->escape($node) . "'");
 171                         if ($result == false)
 172                         {
 173                                 return false;
 174                         }
 175
 176                         $this->memcache['nodes']["$node"] = $result;
 177                         $this->memcache['nodes']["$node"]['history'] = unserialize($this->memcache['nodes']["$node"]['history']);
 178                 }
 179
 180                 return $this->memcache['nodes']["$node"];
 181         }
 182
 183         // ###################################################################
 184         /**
 185         * Checks to see if a given node is a directory. Returns TRUE if so.
 186         *
 187         * @access       public
 188         *
 189         * @param        string  Node path
 190         *
 191         * @return       bool    TRUE if directory, FALSE if not
 192         */
 193         function isdir($node)
 194         {
 195                 $node = $this->fetch_node($node);
 196                 if ($node['node'] == 'dir')
 197                 {
 198                         return true;
 199                 }
 200
 201                 return false;
 202         }
 203
 204         // ###################################################################
 205         /**
 206         * Checks to see if it's necessary to rebuild the cacheV table for the
 207         * current repository. This is done by making sure $count > 0. If not,
 208         * then rebuild() is run. This also checks against the cacheV table
 209         * to make sure that it's up-to-date against the root repository.
 210         *
 211         * @access       public
 212         */
 213         function exec_build()
 214         {
 215                 $result = $this->controller->registry->db->query_first("SELECT MAX(revision) AS max FROM {$this->hash}_revs");
 216                 $this->count = $result['max'];
 217
 218                 // time to go from the start
 219                 if ($this->count == 0)
 220                 {
 221                         $this->build(null);
 222                 }
 223                 else
 224                 {
 225                         // send an Xquery to SVN to see if we need to update
 226                         $query = $this->controller->library->svn('info --xml ' . $this->controller->repospath);
 227                         $query = implode("\n", $query);
 228
 229                         $tree = $this->controller->registry->xml->parse($query);
 230
 231                         if ($tree['info']['entry']['revision'] != $this->count)
 232                         {
 233                                 $this->build($this->count);
 234                         }
 235                 }
 236         }
 237
 238         // ###################################################################
 239         /**
 240         * Builds the cacheV table. This can be used to build only part of the
 241         * cache or the entire thing, if the revision is set to NULL.
 242         *
 243         * @access       public
 244         *
 245         * @param        integer Lower (current) revision
 246         */
 247         function build($revision)
 248         {
 249                 $start = microtime();
 250
 251                 // get _revs
 252                 $output = $this->controller->registry->svn->svn('log --xml -v ' . ($revision !== null ? '-r' . $revision . ':HEAD ' : '') . $this->controller->registry->repos->fetch_path($this->controller->registry->paths->repos));
 253                 $output = implode("\n", $output);
 254                 $tree = $this->controller->registry->xml->parse($output);
 255
 256                 // get _nodes
 257                 $output = $this->controller->registry->svn->svn('info --xml -R ' . ($revision !== null ? '-r' . $revision . ':HEAD ' : '') . $this->controller->registry->repos->fetch_path($this->controller->registry->paths->repos));
 258                 $output = implode("\n", $output);
 259                 $infolist = $this->controller->registry->xml->parse($output);
 260
 261                 // other part of _nodes: properties
 262                 $output = $this->controller->registry->svn->svn('proplist -v -R ' . ($revision !== null ? ' -r' . $revision . ':HEAD ' : '') . $this->controller->registry->repos->fetch_path($this->controller->registry->paths->repos));
 263                 foreach ($output AS $line)
 264                 {
 265                         if (preg_match('#^Properties on \'(.*?)\':$#', $line, $bits))
 266                         {
 267                                 $proplist["$index"]["$curprop"] = trim($proplist["$index"]["$curprop"]);
 268                                 $index = str_replace($this->controller->registry->repos->fetch_path($this->controller->registry->paths->repos), '', $bits[1]);
 269                                 $capture = false;
 270                         }
 271                         else
 272                         {
 273                                 if (preg_match('#^\s+(.*)\s:\s(.*)#', $line, $matches))
 274                                 {
 275                                         $curprop = $matches[1];
 276                                         $proplist["$index"]["$curprop"] = $matches[2] . "\n";
 277                                         $capture = true;
 278                                 }
 279                                 else if ($capture == true)
 280                                 {
 281                                         $proplist["$index"]["$curprop"] .= $line . "\n";
 282                                 }
 283                         }
 284                 }
 285
 286                 // construct _revs inserts and the list of add revisions
 287                 foreach ($tree['log']['logentry'] AS $log)
 288                 {
 289                         $this->controller->registry->xml->unify_node($log['paths']['path']);
 290
 291                         $inserts['revs'][] = "($log[revision], '{$log['author']['value']}', '{$log['date']['value']}', '" . $this->controller->registry->escape($log['msg']['value']) . "', '" . $this->controller->registry->escape(serialize($log['paths']['path'])) . "')";
 292
 293                         foreach ($log['paths']['path'] AS $path)
 294                         {
 295                                 if (trim($path['action']) == 'A')
 296                                 {
 297                                         $path['value'] = preg_replace('#^/#', '', $path['value']);
 298                                         $addlist["$path[value]"] = $log['revision'];
 299                                 }
 300                         }
 301                 }
 302
 303                 // construct list of HEAD nodes for _nodes
 304                 foreach ($infolist['info']['entry'] AS $node)
 305                 {
 306                         $history = $this->controller->registry->svn->svn('log --xml ' . $node['url']['value']);
 307                         $history = implode("\n", $history);
 308                         $history = $this->controller->registry->xml->parse($history);
 309
 310                         $loglist = array();
 311                         $latestrev = -1;
 312                         foreach ($history['log']['logentry'] AS $log)
 313                         {
 314                                 $loglist["$log[revision]"] = array(
 315                                         'revision'      => $log['revision'],
 316                                         'author'        => $log['author']['value'],
 317                                         'date'          => $log['date']['value'],
 318                                         'message'       => $log['msg']['value']
 319                                 );
 320                         }
 321
 322                         $inserts['nodes'][] = "('$node[path]', '" . $node['kind'] . "', " . $node['commit']['revision'] . ", '" . $this->controller->registry->escape(serialize($loglist)) . "', '" . $this->controller->registry->escape(serialize($proplist["$node[path]"])) . "')";
 323                 }
 324
 325                 // insert _revs
 326                 $this->controller->registry->db->query("
 327                         REPLACE INTO {$this->hash}_revs
 328                                 (revision, author, dateline, message, files)
 329                         VALUES
 330                                 " . implode(",\n", $inserts['revs'])
 331                 );
 332
 333                 // insert _nodes
 334                 $this->controller->registry->db->query("
 335                         REPLACE INTO {$this->hash}_nodes
 336                                 (name, node, revision, history, properties)
 337                         VALUES
 338                                 " . implode(",\n", $inserts['nodes'])
 339                 );
 340
 341                 $this->controller->registry->debug("TIME TO (RE)BUILD: " . $this->controller->registry->funct->fetch_microtime_diff($start));
 342         }
 343 }
 344
 345 /*=====================================================================*\
 346 || ###################################################################
 347 || # $HeadURL$
 348 || # $Id$
 349 || ###################################################################
 350 \*=====================================================================*/
 351 ?>