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2024-06-12
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I'm going through the server deployment script right now, and I see babashka, and something new to me, trenchman. My questions for both are the same: is it needed, and if so, what is it used for?
Trenchman is used by the clj -M:dev soft-deploy command, so it can run an ssh command that then talks to the production app over nrepl (specifically, it tells the server to call your on-save function): https://github.com/jacobobryant/biff/blob/9eaa3251b252ae9bb368105519e83e2b6b0efe1f/libs/tasks/src/com/biffweb/tasks.clj#L371
babashka was used previously to start the app, until I switched to using clj -M:dev ... commands for everything. I don't think babashka is necessary anymore; pretty sure I just forgot to take it out of the server-setup.sh script.
Trenchman can serve a remote nrepl, to interact with production instance of app. https://github.com/athos/trenchman Not sure if that is the main repl (for optional develop in prod?) or if for something else.