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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 * The registry
44 * @var object
45 */
46 var $registry = null;
47
48 /**
49 * cacheV hash
50 * @var string
51 */
52 var $hash;
53
54 /**
55 * Record count - the number of records in cacheV
56 * @var integer
57 */
58 var $count;
59
60 /**
61 * Memcache for all fetched revisions so we don't have to query-dupe
62 * @var array
63 */
64 var $memcache = array();
65
66 // ###################################################################
67 /**
68 * Constructor: initialies the registry
69 */
70 function cacheV()
71 {
72 global $viewsvn;
73 $this->registry =& $viewsvn;
74 }
75
76 // ###################################################################
77 /**
78 * Sets the hash so we know what table we're dealing with
79 *
80 * @access public
81 */
82 function set_hash()
83 {
84 $this->hash = md5($this->registry->repos->fetch_path($this->registry->paths->repos));
85 }
86
87 // ###################################################################
88 /**
89 * Returns a specific log entry
90 *
91 * @access public
92 *
93 * @param integer Revision number
94 *
95 * @return array Complete revision/commit entry
96 */
97 function fetch_revision($revision)
98 {
99 $revision = $this->registry->clean($revision, TYPE_UINT);
100
101 if (!isset($this->memcache['revs']["$revision"]))
102 {
103 $this->memcache['revs']["$revision"] = $this->registry->db->query_first("SELECT * FROM {$this->hash}_revs " . ($revision == 0 ? " ORDER BY revision DESC LIMIT 1" : "WHERE revision = $revision"));
104 $this->memcache['revs']["$revision"]['files'] = unserialize($this->memcache['revs']["$revision"]['files']);
105 }
106
107 return $this->memcache['revs']["$revision"];
108 }
109
110 // ###################################################################
111 /**
112 * Returns the revision entry before the specified one
113 *
114 * @access public
115 *
116 * @param integer Revision number
117 *
118 * @return array Complete revision/commit entry
119 */
120 function fetch_prev_revision($revision)
121 {
122 static $prevrevs;
123
124 $revision = $this->registry->clean($revision, TYPE_UINT);
125
126 if (!isset($prevrevs["$revision"]))
127 {
128 $result = $this->registry->db->query_first("SELECT * FROM {$this->hash}_revs ORDER BY revision DESC LIMIT 1 WHERE revision < $revision");
129 $revision = $result['revision'];
130 $this->memcache['revs']["$revision"] = $result;
131 $this->memcache['revs']["$revision"]['files'] = unserialize($this->memcache['revs']["$revision"]['files']);
132 }
133 else
134 {
135 $revision = $prevrevs["$revision"];
136 }
137
138 return $this->memcache['revs']["$revision"];
139 }
140
141 // ###################################################################
142 /**
143 * Fetches the latest revision for a given path
144 *
145 * @access public
146 *
147 * @param string Node path
148 *
149 * @return integer Latest revision; FALSE if none (not in HEAD)
150 */
151 function fetch_latest_revision($node)
152 {
153 if (!isset($this->memcache['nodes']["$node"]))
154 {
155 $this->memcache['nodes']["$node"] = $this->registry->db->query_first("SELECT * FROM {$this->hash}_nodes WHERE name = '" . $this->registry->escape($node) . "'");
156 }
157
158 return $this->memcache['nodes']["$node"];
159 }
160
161 // ###################################################################
162 /**
163 * Checks to see if it's necessary to rebuild the cacheV table for the
164 * current repository. This is done by making sure $count > 0. If not,
165 * then rebuild() is run. This also checks against the cacheV table
166 * to make sure that it's up-to-date against the root repository.
167 *
168 * @access public
169 */
170 function exec_build()
171 {
172 $result = $this->registry->db->query_first("SELECT MAX(revision) AS max FROM {$this->hash}_revs");
173 $this->count = $result['max'];
174
175 // time to go from the start
176 if ($this->count == 0)
177 {
178 $this->build(null);
179 }
180 else
181 {
182 // send an Xquery to SVN to see if we need to update
183 $query = $this->registry->svn->svn('info --xml ' . $this->registry->repos->fetch_path($this->registry->paths->repos));
184 $query = implode("\n", $query);
185
186 $tree = $this->registry->xml->parse($query);
187
188 if ($tree['info']['entry']['revision'] != $this->count)
189 {
190 $this->build($this->count);
191 }
192 }
193 }
194
195 // ###################################################################
196 /**
197 * Builds the cacheV table. This can be used to build only part of the
198 * cache or the entire thing, if the revision is set to NULL.
199 *
200 * @access public
201 *
202 * @param integer Lower (current) revision
203 */
204 function build($revision)
205 {
206 $start = microtime();
207
208 // get _revs
209 $output = $this->registry->svn->svn('log --xml -v ' . ($revision !== null ? '-r' . $revision . ':HEAD ' : '') . $this->registry->repos->fetch_path($this->registry->paths->repos));
210 $output = implode("\n", $output);
211 $tree = $this->registry->xml->parse($output);
212
213 // get _nodes
214 $output = $this->registry->svn->svn('info --xml -R ' . ($revision !== null ? '-r' . $revision . ':HEAD ' : '') . $this->registry->repos->fetch_path($this->registry->paths->repos));
215 $output = implode("\n", $output);
216 $infolist = $this->registry->xml->parse($output);
217
218 // other part of _nodes: properties
219 $output = $this->registry->svn->svn('proplist -v -R ' . ($revision !== null ? ' -r' . $revision . ':HEAD ' : '') . $this->registry->repos->fetch_path($this->registry->paths->repos));
220 foreach ($output AS $line)
221 {
222 if (preg_match('#^Properties on \'(.*?)\':$#', $line, $bits))
223 {
224 $proplist["$index"]["$curprop"] = trim($proplist["$index"]["$curprop"]);
225 $index = str_replace($this->registry->repos->fetch_path($this->registry->paths->repos), '', $bits[1]);
226 $capture = false;
227 }
228 else
229 {
230 if (preg_match('#^\s+(.*)\s:\s(.*)#', $line, $matches))
231 {
232 $curprop = $matches[1];
233 $proplist["$index"]["$curprop"] = $matches[2] . "\n";
234 $capture = true;
235 }
236 else if ($capture == true)
237 {
238 $proplist["$index"]["$curprop"] .= $line . "\n";
239 }
240 }
241 }
242
243 // construct _revs inserts and the list of add revisions
244 foreach ($tree['log']['logentry'] AS $log)
245 {
246 $this->registry->xml->unify_node($log['paths']['path']);
247
248 $inserts['revs'][] = "($log[revision], '{$log['author']['value']}', '{$log['date']['value']}', '" . $this->registry->escape($log['msg']['value']) . "', '" . $this->registry->escape(serialize($log['paths']['path'])) . "')";
249
250 foreach ($log['paths']['path'] AS $path)
251 {
252 if (trim($path['action']) == 'A')
253 {
254 $path['value'] = preg_replace('#^/#', '', $path['value']);
255 $addlist["$path[value]"] = $log['revision'];
256 }
257 }
258 }
259
260 // construct list of HEAD nodes for _nodes
261 foreach ($infolist['info']['entry'] AS $node)
262 {
263 $history = $this->registry->svn->svn('log --xml ' . $node['url']['value']);
264 $history = implode("\n", $history);
265 $history = $this->registry->xml->parse($history);
266
267 $loglist = array();
268 $latestrev = -1;
269 foreach ($history['log']['logentry'] AS $log)
270 {
271 $latestrev = ($log['revision'] > $latestrev ? $log['revision'] : $latestrev);
272 $loglist["$log[revision]"] = array(
273 'revision' => $log['revision'],
274 'author' => $log['author']['value'],
275 'date' => $log['date']['value'],
276 'message' => $log['msg']['value']
277 );
278 }
279
280 $inserts['nodes'][] = "('$node[path]', '" . $node['kind'] . "', $latestrev, '" . $this->registry->escape(serialize($loglist)) . "', '" . $this->registry->escape(serialize($proplist["$node[path]"])) . "')";
281 }
282
283 // insert _revs
284 $this->registry->db->query("
285 REPLACE INTO {$this->hash}_revs
286 (revision, author, dateline, message, files)
287 VALUES
288 " . implode(",\n", $inserts['revs'])
289 );
290
291 // insert _nodes
292 $this->registry->db->query("
293 REPLACE INTO {$this->hash}_nodes
294 (name, node, revision, history, properties)
295 VALUES
296 " . implode(",\n", $inserts['nodes'])
297 );
298
299 $this->registry->debug("TIME TO (RE)BUILD: " . $this->registry->funct->fetch_microtime_diff($start));
300 }
301 }
302
303 /*=====================================================================*\
304 || ###################################################################
305 || # $HeadURL$
306 || # $Id$
307 || ###################################################################
308 \*=====================================================================*/
309 ?>