How to run/debug compojure web app via counterclockwise (or la clojure)

Here's a recipe that's work great for me while developing Ring applications:

  • Ensure you have leiningen support properly configured for your projet (do it once if in doubt):
    • in the package explorer, select the project, and invoke the contextual command Leiningen > Reset configuration
    • then also invoke the Leiningen > Update dependencies command
    • you should see a Leiningen Dependencies virtual node in your project, referencing the direct and transitive dependencies of your project
  • Select the asdf.handler file, right click and then Debug as > Clojure Application
  • Open the asdf.handler namespace in an editor
  • With the cursor currently still in the editor, type Ctrl+Alt+N to jump to the REPL and switch the REPL's current namespace to asdf.handler at the same time
  • Start the app by typing (app) + Enter (or Ctrl+Enter if your cursor is not at the end of the line)

You can now navigate between the editors and the REPL.

  • To send editor content to the REPL, select it, and hit Ctrl+Enter
  • If you hit Ctrl+Enter without a selection, the whole 'top level expression' (e.g. a defn) will be sent to the REPL
  • To resend the whole file to the REPL, type Ctrl+Alt+S

Note that a future version of Counterclockwise will integrate a little bit more with Leiningen 2, but as it currently stands, the very nature of developing ring applications make it not so painful to bootstrap things as described above, IMHO.




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