How to run/debug compojure web app via counterclockwise (or la clojure)
clojure, compojure, counterclockwise, la-clojure
Solution
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`
- the whole list of keyboard shortcuts specific to CCW is here: http://code.google.com/p/counterclockwise/wiki/EditorKeyBindingsFeatures
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
Problem
I'm trying to write my first web app in compojure. I'm using ccw, and I `File-New-Project, Clojure Project` and use the "compojure" leiningen template. End up with project.clj looking like ``` (defproject asdf "0.1.0-SNAPSHOT" :description "FIXME: write description" :url "http://example.com/FIXME" :dependencies [[org.clojure/clojure "1.4.0"] [compojure "1.1.5"]] :plugins [[lein-ring "0.8.2"]] :ring {:handler asdf.handler/app} :profiles {:dev {:dependencies [[ring-mock "0.1.3"]]}}) ``` src/asdf/handler.clj looks like ``` (ns asdf.handler (:use compojure.core) (:require [compojure.handler :as handler] [compojure.route :as route])) (defroutes app-routes (GET "/" [] "Hello World") (route/not-found "Not Found")) (def app (handler/site app-routes)) ``` I found I can run this using `lein ring server` from the command line, but I'm not sure how to run this from eclipse. I'm of course hoping to be able not only to run it, but also to debug it and set breakpoints and such. Is there a way to do this in eclipse? Or, if not, how about IntelliJ/La-Clojure? (I'm a bit afraid of emacs, for now, but maybe if it's super-simple I'd give it a try). Or, is this just not the typical development process for a compojure app? (If not, what is? Just run `lein ring server` and pray?) If it makes a difference this is on Win7.