From 419f34d3cbfc4d0c671d9520bb701a96e9969d35 Mon Sep 17 00:00:00 2001
From: Robert Sesek <rsesek@bluestatic.org>
Date: Mon, 9 Jan 2006 08:36:18 +0000
Subject: [PATCH] Change cacheV::rebuild() to build() and allow for only
 partial building of the table

---
 global.php          |  2 +-
 includes/cachev.php | 42 ++++++++++++++++++++++++++++--------------
 2 files changed, 29 insertions(+), 15 deletions(-)

diff --git a/global.php b/global.php
index 3a36f2d..4049335 100644
--- a/global.php
+++ b/global.php
@@ -34,7 +34,7 @@ if ($dochooser)
 	}
 	else
 	{
-		$cachev->exec_rebuild();
+		$cachev->exec_build();
 	}
 }
 
diff --git a/includes/cachev.php b/includes/cachev.php
index 55f0082..2611fc7 100644
--- a/includes/cachev.php
+++ b/includes/cachev.php
@@ -82,37 +82,51 @@ class cacheV
 	/**
 	* Checks to see if it's necessary to rebuild the cacheV table for the
 	* current repository. This is done by making sure $count > 0. If not,
-	* then rebuild() is run.
+	* then rebuild() is run. This also checks against the cacheV table
+	* to make sure that it's up-to-date against the root repository.
 	*
 	* @access	public
 	*/
-	function exec_rebuild()
+	function exec_build()
 	{
-		$result = $this->registry->db->query_first("SELECT COUNT(*) AS count FROM {$this->hash}");
-		if ($result['count'] > 0)
+		$result = $this->registry->db->query_first("SELECT MAX(revision) AS max FROM {$this->hash}");
+		
+		// time to go from the start
+		if ($result['max'] == 0)
 		{
-			return;
+			$this->build(null);
+		}
+		else
+		{
+			// send an Xquery to SVN
+			$query = $this->registry->svn->svn('info --xml ' . $this->registry->repos->fetch_path($this->registry->paths->repos));
+			$query = implode("\n", $query);
+			
+			$tree = $this->registry->xml->parse($query);
+			
+			if ($tree['info']['entry']['revision'] != $result['max'])
+			{
+				$this->build($result['max']);
+			}
 		}
-		
-		$this->rebuild();
 	}
 	
 	// ###################################################################
 	/**
-	* Rebuilds the entire cacheV table from scratch. This is used on new
-	* repositories by checking $count. Be careful as this is a very
-	* expensive operation to run.
+	* Builds the cacheV table. This can be used to build only part of the
+	* cache or the entire thing, if the revision is set to NULL.
 	*
 	* @access	public
+	*
+	* @param	integer	Lower (current) revision
 	*/
-	function rebuild()
+	function build($revision)
 	{
 		$start = microtime();
 		
-		$output = $this->registry->svn->svn('log --xml -v ' . $this->registry->repos->fetch_path($this->registry->paths->repos));
+		$output = $this->registry->svn->svn('log --xml -v ' . ($revision !== null ? '-r' . $revision . ':HEAD ' : '') . $this->registry->repos->fetch_path($this->registry->paths->repos));
 		$output = implode("\n", $output);
 		
-		$this->registry->load('xml', 'xml', true);
 		$tree = $this->registry->xml->parse($output);
 		
 		foreach ($tree['log']['logentry'] AS $log)
@@ -136,7 +150,7 @@ class cacheV
 				" . implode(",\n", $inserts)
 		);
 		
-		$this->registry->debug("TIME TO REBUILD: " . $this->registry->funct->fetch_microtime_diff($start));
+		$this->registry->debug("TIME TO (RE)BUILD: " . $this->registry->funct->fetch_microtime_diff($start));
 	}
 }
 
-- 
2.22.5