#!/bin/bash

# TODO: this gives us a trailing colon
VERSION="1.0.0-SNAPSHOT"
LIBS="$(find -H lib/ -mindepth 2> /dev/null 1 -maxdepth 1 -print0 | tr \\0 \:)"
CLASSPATH="src/:classes/:$LIBS"
LEIN_JAR=$HOME/.m2/repository/leiningen/leiningen/$VERSION/leiningen-$VERSION.jar

# this needs to exist before the JVM is launched apparently
if [ -r project.clj ]; then
    mkdir -p classes
fi

# normalize $0 on certain BSDs
if [ "$(dirname $0)" = "." ]; then
    SCRIPT="$(which $(basename $0))"
else
    SCRIPT="$0"
fi

# resolve symlinks to the script itself portably
while [ -h "$SCRIPT" ] ; do
    ls=`ls -ld "$SCRIPT"`
    link=`expr "$ls" : '.*-> \(.*\)$'`
    if expr "$link" : '/.*' > /dev/null; then
        SCRIPT="$link"
    else
        SCRIPT="`dirname "$SCRIPT"`/$link"
    fi
done

BIN_DIR="$(dirname "$SCRIPT")"

if [ -r "$BIN_DIR/../classes/leiningen/core.class" ]; then
    # Running from source checkout
    LEIN_DIR="$(dirname "$BIN_DIR")"
    CLASSPATH="$LEIN_DIR/src:$LEIN_DIR/classes:$LEIN_DIR/lib:$LEIN_JAR:$CLASSPATH"

    if [ ! -r "lib/leiningen*jar" -a ! -r "$LEIN_JAR" -a "$1" != "self-install" ]; then
        echo "Leiningen is not installed. Please run \"lein self-install\"."
    fi
else
    # Not running from a checkout
    CLASSPATH="$CLASSPATH:$LEIN_JAR"

    if [ ! -r "$LEIN_JAR" -a "$1" != "self-install" ]; then
        echo "Leiningen is not installed. Please run \"lein self-install\"."
        exit 1
    fi
fi

if [ "$1" = "test" ]; then
    CLASSPATH=test/:$CLASSPATH
fi

if [ $DEBUG ]; then
    echo $CLASSPATH
fi

# Deps need to run before the JVM launches for tasks that need them
if [ "$1" = "compile" -o "$1" = "jar" -o "$1" = "uberjar" ]; then
    if [ ! "$(ls -A lib/*jar 2> /dev/null)" ]; then
        $0 deps skip-dev
    fi
fi

if [ "$1" = "repl" ]; then
    # If repl used leiningen.core then there'd be no way to bootstrap AOT
    java -cp "$CLASSPATH" clojure.main
elif [ "$1" = "self-install" ]; then
    echo "Downloading Leiningen now..."
    mkdir -p `dirname "$LEIN_JAR"`
    LEIN_URL=http://repo.technomancy.us/leiningen-$VERSION.jar
    if type -p curl >/dev/null 2>&1; then
        exec curl -o "$LEIN_JAR" "$LEIN_URL"
    else
        exec wget -O "$LEIN_JAR" "$LEIN_URL"
    fi
elif [ -z "$1" ]; then
    echo "Usage: `basename $0` taskname. Run `basename $0` help for a list of tasks."
else
    exec java -client -cp "$CLASSPATH" leiningen.core $@
fi