Fancy Clojure REPL [asciinema]

A fancy Clojure REPL, to get it yourself, do the following:

In your .clojure/deps.edn add the following alias:

:aliases {:repl {:extra-deps {com.bhauman/rebel-readline {:mvn/version "RELEASE"}
                               com.gfredericks/user.clj {:mvn/version "RELEASE"}
                               org.clojure/core.async {:mvn/version "RELEASE"}
                               org.clojure/core.logic {:mvn/version "RELEASE"}
                               org.clojure/test.check {:mvn/version "RELEASE"}
                               com.clojure-goes-fast/clj-java-decompiler {:mvn/version "RELEASE"}
                               com.clojure-goes-fast/clj-memory-meter {:mvn/version "RELEASE"}
                               com.clojure-goes-fast/clj-async-profiler {:mvn/version "RELEASE"}
                               com.clojure-goes-fast/jvm-alloc-rate-meter {:mvn/version "RELEASE"}
                               com.clojure-goes-fast/jvm-hiccup-meter {:mvn/version "RELEASE"}
                               io.aviso/pretty {:mvn/version "RELEASE"}
                               mvxcvi/puget {:mvn/version "RELEASE"}
                               com.hypirion/clj-xchart {:mvn/version "RELEASE"}
                               org.clojure/clojure {:mvn/version "RELEASE"}
                               generateme/fastmath {:mvn/version "RELEASE"}
                               clj-commons/pomegranate {:mvn/version "RELEASE"}}
                  :main-opts  ["-m" "rebel-readline.main"]}

And in .clojure/user.clj add the following: https://gist.github.com/didibus/b88a0d458601e06d63d0ca430962ff42

Finally, in your .zshrc or .bashrc file add:

function clj() {
    if [[ -z $@ ]]
    then
        command clojure -A:repl
    else
        command clj $@
    fi
}

So now when you type clj you get a super fancy repl with colorized output, friendly error messages, auto-complete, doc showing, multi-line support and the most common namespaces pre-required as well as useful functions you can use with (req-...) to lazy require more useful namespaces. There is one called (req-deps) which requires pomegranate and defines add-lein-deps that can then be used to dynamically bring in more dependencies to the REPL as well.