Tests are printing:
*** [1-11711] Failed to open 'some-nonexistent-file': No such file or
directory.
*** (ByteStream.cpp:693)
*** 'DJVU::GUTF8String DJVU::ByteStream::Stdio::init(const DJVU::GURL&,
const char*)'
djvutxt: [1-11711] Failed to open 'some-nonexistent-file': No such file
or directory.
djvutxt: 'ByteStream.cpp:693'
That just spamming the logs, so adding a valid check before do anything.
Change-Id: Ia77377e632587ede76af4c722a1b8ac34fa50e1c
/**
* Return an XML string describing the DjVu image
- * @return string
+ * @return string|bool
*/
function retrieveMetaData() {
global $wgDjvuToXML, $wgDjvuDump, $wgDjvuTxt;
wfProfileIn( __METHOD__ );
+ if ( !$this->isValid() ) {
+ return false;
+ }
+
if ( isset( $wgDjvuDump ) ) {
# djvudump is faster as of version 3.5
# http://sourceforge.net/tracker/index.php?func=detail&aid=1704049&group_id=32953&atid=406583