Integrate edamame

[jeroenvandijk]

Is your feature request related to a problem? Please describe.

Babashka is missing some clojure.core vars in order to support Edamame dynamically see babashka/sci#382 babashka/sci#383

Edamame is useful to parse clojure forms in clojure files. I was trying this because I want to find duplicated functions in my code via a Babashka script. And I'll probably think of more applications when this is succesful

Describe the solution you'd like

Be able to load the library edamame without errors:

export BABASHKA_CLASSPATH=$(clojure -Spath -Sdeps '{:deps {  borkdude/edamame {:mvn/version "0.0.11-alpha.13"} }  }')

(require '[edamame.core :refer [parse-string]]))

Describe alternatives you've considered

• Using another library https://github.com/babashka/pod-babashka-parcera
• Writing the script in Clojure
• Not writing such a script

Additional context

The two issues mentioned in the problem statement above

[borkdude]

@jeroenvandijk I'd like to not expose edamame just yet, since babashka is pretty conservative in what is built-in.

But I have good news. You can parse clojure using clojure.core/read in babashka now, which uses edamame behind the scenes.

E.g this shows there are 689 forms in clojure.core:

$ bb -e '(let [rdr (io/reader "/Users/borkdude/git/clojure/src/clj/clojure/core.clj") rdr (java.io.PushbackReader. rdr)] (count (take-while #(not= ::eof %) (repeatedly #(read {:eof ::eof} rdr)))))'
698

[borkdude]

I've also used this approach in the tools.namespace fork here: https://github.com/babashka/tools.namespace

[borkdude]

Forgot to mention: babashka now also comes with rewrite-clj which may serve a similar purpose.

[borkdude]

@jeroenvandijk Edamame is now (finally!) available in babashka on master.

[jeroenvandijk]

@borkdude Thank you!