3 files changed, 68 insertions, 14 deletions
diff --git a/phpBB/develop/export_events_for_wiki.php b/phpBB/develop/export_events_for_wiki.php
index 721f4f18e3..029affcbe9 100644
--- a/phpBB/develop/export_events_for_wiki.php
+++ b/phpBB/develop/export_events_for_wiki.php
@@ -28,6 +28,9 @@ function usage()
 	echo "    all:\n";
 	echo "        Generate the complete wikipage for https://wiki.phpbb.com/Event_List\n";
 	echo "\n";
+	echo "    diff:\n";
+	echo "        Generate the Event Diff for the release highlights\n";
+	echo "\n";
 	echo "    php:\n";
 	echo "        Generate the PHP event section of Event_List\n";
 	echo "\n";
@@ -37,6 +40,9 @@ function usage()
 	echo "    styles:\n";
 	echo "        Generate the Styles Template event section of Event_List\n";
 	echo "\n";
+	echo "VERSION (diff only):\n";
+	echo "    Filter events (minimum version)\n";
+	echo "\n";
 	echo "EXTENSION (Optional):\n";
 	echo "    If not given, only core events will be exported.\n";
 	echo "    Otherwise only events from the extension will be exported.\n";
@@ -55,8 +61,8 @@ function validate_argument_count($arguments, $count)
 validate_argument_count($argc, 1);
 
 $action = $argv[1];
-$extension = isset($argv[2]) && $argv[2] !== 'null' ? $argv[2] : null;
-$min_version = isset($argv[3]) ? $argv[3] : null;
+$extension = isset($argv[2]) ? $argv[2] : null;
+$min_version = null;
 require __DIR__ . '/../phpbb/event/php_exporter.' . $phpEx;
 require __DIR__ . '/../phpbb/event/md_exporter.' . $phpEx;
 require __DIR__ . '/../includes/functions.' . $phpEx;
@@ -68,10 +74,19 @@ switch ($action)
 	case 'all':
 		echo '__FORCETOC__' . "\n";
 
+	case 'diff':
+		if ($action === 'diff')
+		{
+			echo '== Event changes ==' . "\n";
+		}
+		$min_version = $extension;
+		$extension = isset($argv[3]) ? $argv[3] : null;
+
+
 	case 'php':
 		$exporter = new \phpbb\event\php_exporter($phpbb_root_path, $extension, $min_version);
 		$exporter->crawl_phpbb_directory_php();
-		echo $exporter->export_events_for_wiki();
+		echo $exporter->export_events_for_wiki($action);
 
 		if ($action === 'php')
 		{
@@ -81,9 +96,16 @@ switch ($action)
 		// no break;
 
 	case 'styles':
-		$exporter = new \phpbb\event\md_exporter($phpbb_root_path, $extension);
-		$exporter->crawl_phpbb_directory_styles('docs/events.md');
-		echo $exporter->export_events_for_wiki();
+		$exporter = new \phpbb\event\md_exporter($phpbb_root_path, $extension, $min_version);
+		if ($min_version && $action === 'diff')
+		{
+			$exporter->crawl_eventsmd('docs/events.md', 'styles');
+		}
+		else
+		{
+			$exporter->crawl_phpbb_directory_styles('docs/events.md');
+		}
+		echo $exporter->export_events_for_wiki($action);
 
 		if ($action === 'styles')
 		{
@@ -93,9 +115,16 @@ switch ($action)
 		// no break;
 
 	case 'adm':
-		$exporter = new \phpbb\event\md_exporter($phpbb_root_path, $extension);
-		$exporter->crawl_phpbb_directory_adm('docs/events.md');
-		echo $exporter->export_events_for_wiki();
+		$exporter = new \phpbb\event\md_exporter($phpbb_root_path, $extension, $min_version);
+		if ($min_version && $action === 'diff')
+		{
+			$exporter->crawl_eventsmd('docs/events.md', 'adm');
+		}
+		else
+		{
+			$exporter->crawl_phpbb_directory_adm('docs/events.md');
+		}
+		echo $exporter->export_events_for_wiki($action);
 
 		if ($action === 'all')
 		{
diff --git a/phpBB/phpbb/event/md_exporter.php b/phpBB/phpbb/event/md_exporter.php
index d5de56525a..7f94ca9299 100644
--- a/phpBB/phpbb/event/md_exporter.php
+++ b/phpBB/phpbb/event/md_exporter.php
@@ -191,19 +191,35 @@ class md_exporter
 
 	/**
 	* Format the php events as a wiki table
+	*
+	* @param string $action
 	* @return string		Number of events found
 	*/
-	public function export_events_for_wiki()
+	public function export_events_for_wiki($action = '')
 	{
 		if ($this->filter === 'adm')
 		{
-			$wiki_page = '= ACP Template Events =' . "\n";
+			if ($action === 'diff')
+			{
+				$wiki_page = '=== ACP Template Events ===' . "\n";
+			}
+			else
+			{
+				$wiki_page = '= ACP Template Events =' . "\n";
+			}
 			$wiki_page .= '{| class="zebra sortable" cellspacing="0" cellpadding="5"' . "\n";
 			$wiki_page .= '! Identifier !! Placement !! Added in Release !! Explanation' . "\n";
 		}
 		else
 		{
-			$wiki_page = '= Template Events =' . "\n";
+			if ($action === 'diff')
+			{
+				$wiki_page = '=== Template Events ===' . "\n";
+			}
+			else
+			{
+				$wiki_page = '= Template Events =' . "\n";
+			}
 			$wiki_page .= '{| class="zebra sortable" cellspacing="0" cellpadding="5"' . "\n";
 			$wiki_page .= '! Identifier !! Prosilver Placement (If applicable) !! Subsilver Placement (If applicable) !! Added in Release !! Explanation' . "\n";
 		}
diff --git a/phpBB/phpbb/event/php_exporter.php b/phpBB/phpbb/event/php_exporter.php
index 0857298c07..1e0bd4ac67 100644
--- a/phpBB/phpbb/event/php_exporter.php
+++ b/phpBB/phpbb/event/php_exporter.php
@@ -158,11 +158,20 @@ class php_exporter
 
 	/**
 	* Format the php events as a wiki table
+	*
+	* @param string $action
 	* @return string
 	*/
-	public function export_events_for_wiki()
+	public function export_events_for_wiki($action = '')
 	{
-		$wiki_page = '= PHP Events (Hook Locations) =' . "\n";
+		if ($action === 'diff')
+		{
+			$wiki_page = '=== PHP Events (Hook Locations) ===' . "\n";
+		}
+		else
+		{
+			$wiki_page = '= PHP Events (Hook Locations) =' . "\n";
+		}
 		$wiki_page .= '{| class="sortable zebra" cellspacing="0" cellpadding="5"' . "\n";
 		$wiki_page .= '! Identifier !! Placement !! Arguments !! Added in Release !! Explanation' . "\n";
 		foreach ($this->events as $event)