Exceptions in generate fail silently

[joesavage]

The generate private method suppresses any exceptions through begin and rescue , and hence if 'latex', 'dvips' or 'convert' aren't present on the machine, the sh method's exception isn't shown, and the rendering fails silently (much to the confusion of the user as to why an image wasn't generated).

begin
  temp_dir = create_temp_dir(hash)
  latex2dvi(temp_dir, formula) #Exception here? Too bad. Suppressed.
  dvi2ps(temp_dir)
  ps2image(temp_dir, hash)
rescue
  FileUtils.rm_rf(temp_dir) if !@options[:debug]
else
  FileUtils.rm_rf(temp_dir)
end

[minad]

latex-renderer is unmaintained, you could try https://github.com/minad/imaginator which is more up-to-date