<math> results in "wfMkdirParents: failed to mkdir" - WikiEN-l

4 Jan 2013

I'm attempting my first MediaWiki (1.17) install on MacOS X using Macports
for PHP, MySQL and Apache.

  https://trac.macports.org/wiki/howto/MAMP

My intent is to use a wiki documenting personal projects, and placed it in
~/Sites/mediawiki.  My LocalSettings.php file contains the definition below.

  $wgScriptPath       = "/~bpabbott/mediawiki";

The absolute path is /Users/bpabbott/Sites/mediawiki

Everything appeared to be ok, until I tried to enable LaTeX to be used to
render equations.  I made the changes below to my LocalSettings.php.

$wgEnableUploads = true;

## Upload paths.  May want other Directories for additional wikis
$wgUploadPath      = "$wgScriptPath/images";
$wgUploadDirectory = "$wgScriptPath/images";

## If you have the appropriate support software installed
## you can enable inline LaTeX equations:
$wgUseTeX           = true;

## Setup the Math directories
$wgMathPath         = "{$wgUploadPath}/math";
$wgMathDirectory    = "{$wgUploadDirectory}/math";
$wgTmpDirectory     = "{$wgUploadDirectory}/tmp";

To help with debugging, I also did the unwise thing below.

mkdir ~/Sites/mediawiki/images/math
mkdir ~/Sites/mediawiki/images/tmp
$ chmod 777 ~/Sites/mediawiki/images/math
$ chmod 777 ~/Sites/mediawiki/images/tmp

Even with no security, when I attempt to include an equation on a page, I
encounter the error below (while in preview)

WARNING: wfMkdirParents: failed to mkdir "/~bpabbott/mediawiki/images/tmp"
modes 511 in /Users/bpabbott/Sites/mediawiki/includes/GlobalFunctions.php on
line 2324.

The wfMakeParents function in my GlobalFunctions.php, is below.

2292 /**
2293  * Make directory, and make all parent directories if they don't exist
2294  *
2295  * @param $dir String: full path to directory to create
2296  * @param $mode Integer: chmod value to use, default is
$wgDirectoryMode
2297  * @param $caller String: optional caller param for debugging.
2298  * @return bool
2299  */
2300 function wfMkdirParents( $dir, $mode = null, $caller = null ) {
2301   global $wgDirectoryMode;
2302 
2303   if ( !is_null( $caller ) ) {
2304     wfDebug( "$caller: called wfMkdirParents($dir)" );
2305   }
2306 
2307   if( strval( $dir ) ===  || file_exists( $dir ) ) {
2308     return true;
2309   }
2310 
2311   $dir = str_replace( array( '\\', '/' ), DIRECTORY_SEPARATOR, $dir
);
2312 
2313   if ( is_null( $mode ) ) {
2314     $mode = $wgDirectoryMode;
2315   }
2316 
2317   // Turn off the normal warning, we're doing our own below
2318   wfSuppressWarnings();
2319   $ok = mkdir( $dir, $mode, true ); // PHP5 <3
2320   wfRestoreWarnings();
2321 
2322   if( !$ok ) {
2323     // PHP doesn't report the path in its warning message, so add our
own to aid in diagnosis.
2324     trigger_error( __FUNCTION__ . ": failed to mkdir \"$dir\" mode
$mode", E_USER_WARNING );
2325   }
2326   return $ok;
2327 }

It appears that PHP is not able to make sense of "/~bpabbott" ... which
Mediawiki interprets as "/Users/bpabbott/Sites" (?) ... I tried using an
absolute path for $wgScriptPath, but that breaks the wiki.

Any ideas?

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