| 1 | # Set this to the directory you want the images stored in. Web server must have write access. |
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| 2 | images_folder = '/var/www/dev.jvnv.net/htdocs/trac/graphviz' |
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| 3 | # Base URL of the folder. |
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| 4 | images_url = '/trac/graphviz' |
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| 5 | |
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| 6 | import md5 |
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| 7 | import os |
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| 8 | |
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| 9 | def execute(hdf, text, env): |
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| 10 | md5sum = md5.new(text).hexdigest() |
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| 11 | if not os.access('%s/%s.png' % (images_folder, md5sum), os.F_OK): |
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| 12 | dot = os.popen('dot -Tpng -o%s/%s.png' % (images_folder, md5sum), 'w') |
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| 13 | dot.write(text) |
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| 14 | dot.close() |
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| 15 | return '<img src="%s/%s.png" alt="Graph" />\n' % (images_url, md5sum) |
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