Populate feature metadata in the pull request title and body

[micahjsmith]

Is it doable to have a new feature pull request contain the feature name and feature description automatically in the conversation dialog?

yes this would definitely be possible, the relevant method is here: https://github.com/ballet/ballet-assemble/blob/master/server/ballet_assemble/app.py#L229

considerations

• the input to the pull request creation method is the code content, which is an arbitrary string
• you could parse the code with static analysis to try to recover the feature attributes like the name, but not guaranteed to succeed, for example someone could submit a code cell which does not include a feature definition
• if you use dynamic analysis, i.e. eval the code and try to import the feature, it could have side effects (and be a security vulnerability), though of course a user who did this would just be hurting their own development environment
• after one of the above attempts, a fallback in case any errors occur could just be the existing PR message
• can supplement this automatic detection with user confirmation
  • existing flow: select code cell(s) -> press submit -> confirm the code content is as desired -> feature is submitted
  • candidate flow: select code cell(s) -> press submit -> confirm the code content is as desired -> confirm the automatically detected metadata is as desired, and if not, option to correct it -> feature is submitted

h/t @dyuliu