Export issues' cycle time and other Control Chart data from JIRA.
Cycle time data is very useful for a variety of reporting and forecasting metrics, for instance http://focusedobjective.com/free-tools-resources/
JIRA does provide out of the box cycle time reporting via its own Control Chart tool, but sadly there is no official way to export the data through the JIRA REST API for 3rd party reporting outside of JIRA.
This Ruby application provides a workaround by accessing the raw data through the "internal" JIRA GreenHopper API, and transforming it into a CSV file.