Fast lein repl using drip

fastrepl.sh

#!/bin/bash -e

if [ ! -f ./project.clj ]; then
  echo "Run from a lein project directory."
  exit 1
fi

mkdir -p ./.fastrepl/
if command -v md5 >/dev/null 2>&1; then
  MD5=`md5 -q project.clj`
elif command -v md5sum >/dev/null 2>&1; then
  MD5=`md5sum project.clj | cut -d' ' -f1`
else
  echo "Requires md5 or md5sum command. Aborting."
  exit 1
fi

CPFILE="./.fastrepl/classpath-$MD5"

if [ ! -f $CPFILE ]; then
  echo "Generating classpath (happens once per change to project.clj)."
  lein deps
  lein classpath > $CPFILE
  echo "Generated $CPFILE"
fi

breakchars="(){}[],^%$#@\"\";:''|\\" 

rlwrap --remember --always-readline -b "$breakchars" \
  drip -client -noverify -XX:+TieredCompilation \
  -cp `cat $CPFILE` \
  clojure.main