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Bug 3877 - Unable to render new math images in 1.6
 Summary: Unable to render new math images in 1.6
 Status: Product: RESOLVED FIXED MediaWiki extensions Unclassified Component: Math (Other open bugs) unspecified All All Normal normal (vote) --- Nobody - You can work on this! Show dependency tree / graph

 Reported: 2005-11-04 02:25 UTC by Brion Vibber 2005-11-04 02:36 UTC (History) 0 users --- --- ---

Attachments

 Brion Vibber 2005-11-04 02:25:27 UTC Math.php was recently changed to use 3 levels of subdirectories for the rendered math images. Unfortunately the code is broken such that initial rendering is done into the wrong directory, so any newly rendered images end up in the wrong directory and aren't visible (404). For instance rendering this bit in the english wikipedia sandbox: $\frac{238490}{89973}$ gives this URL: http://en.wikipedia.org/math/4/8/2/48287d2c5dacab82a7a4b46638ee6781.png but the file is actually at: http://en.wikipedia.org/math/48287d2c5dacab82a7a4b46638ee6781.png The subdirectories are the first three digits of the hex output content hash, which is used to name the .png files. This value is calculated by texvc, so is not known until after texvc returns, but we try to generate the directory and pass it to texvc to tell it where to deposit the image... This ends up trying something like "/math///" which reduces in Unix semantics to "/math/". Recommendation: render into the temp directory, then move the image to its final destination. Brion Vibber 2005-11-04 02:36:25 UTC Done; can now render new images.

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