Launch phoenix server inside of iex

[mgraham]

It seems that the standard approach is to run phx.server from within an iex session.

Maybe this could be added as a feature? Right now, I have this wrapper which works fine:

(defun mag/inf-elixir-project-phx-server ()
  "Launch inf-elixir with phoenix server"
  (interactive)
  (let ((saved-inf-elixir-project-command inf-elixir-project-command))
    (setq inf-elixir-project-command "iex -S mix phx.server")
    (inf-elixir-project)
    (setq inf-elixir-project-command saved-inf-elixir-project-command)
    ))

[J3RN]

The way I'm currently doing this is by using a prefix argument, for instance C-u C-c i p (where C-c i p is my binding to invoke inf-elixir-project). inf-elixir-project with a prefix argument prompts for a custom command, and I'll add phx.server to the existing iex -S mix command and hit RET and that's enough. If I need to restart it I do this all again, but the command defaults to iex -S mix every time, though I can hit M-p to get whatever command I used last. This could be improved, either by:

1. Pre-filling whichever custom Elixir project command was used last, rather than the static default
2. Having a dedicated binding for phx.server