This directory contains the necessary files and assets to run speedscope. The files come from a ZIP file that can be downloaded from the releases page of the speedscope repository on GitHub. If you wish to upgrade speedscope to the latest version, run bundle exec rake speedscope_upgrade in the root directory of this repository.

The rake task will download the ZIP file of the latest speedscope release from Github, remove the old files from the lib/html/speedscope directory and extract the ZIP file into the same directory. It will also make a small change to the index.html file to replace a link to a Google Fonts stylesheet with a link to a local copy in the fonts directory. This is done to make sure speedscope doesn’t load any assets from third-parties so that it can work when you’re on an intranet.