generatePhpCharToUpperMappings: Die if fopen fails

This prevents additional errors in the following code.

Change-Id: I27770e6ca09c495ec7b6cb588c251b4014697bfe

diff --git a/maintenance/mediawiki.Title/generatePhpCharToUpperMappings.php b/maintenance/mediawiki.Title/generatePhpCharToUpperMappings.php
index e1a50ea..9fc5513 100755 (executable)
--- a/maintenance/mediawiki.Title/generatePhpCharToUpperMappings.php
+++ b/maintenance/mediawiki.Title/generatePhpCharToUpperMappings.php
@@ -82,6 +82,9 @@ class GeneratePhpCharToUpperMappings extends Maintenance {
                ) . "\n";
                $outputPath = '/resources/src/mediawiki.Title/phpCharToUpper.json';
                $file = fopen( $IP . $outputPath, 'w' );
                ) . "\n";
                $outputPath = '/resources/src/mediawiki.Title/phpCharToUpper.json';
                $file = fopen( $IP . $outputPath, 'w' );

+               if ( !$file ) {
+                       $this->fatalError( "Unable to write file \"$IP$outputPath\"" );
+               }

                fwrite( $file, $mappingJson );
 
                $this->output( count( $data ) . " differences found.\n" );
                fwrite( $file, $mappingJson );
 
                $this->output( count( $data ) . " differences found.\n" );