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README.activity-graph.md

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How to add activity graphs to the page

  • Install gnuplot
  • In the Apache document root, create a folder images/index
  • In the source directory, run perl -Ilib util/cron-graphs.pl --output-dir=$document_root/images/index (replace $document_root with the actual document root)
  • in cgi.conf, add the line ACTIVITY_IMAGES = 1
  • to ensure that the the images stay up to date, install a cron job that regularly runs util/cron-graphs.pl as shown above.

The activity images are limited to a fixed number of data points, by default 100 (which makes sense sense, because the generated image is 100 pixel wide). You can override that number by providing for example --steps=20 as option to util-cron-graphs.pl. You should do that if you have collected fewer than 100 days worth of logs.