#!/bin/bash

# This variant of the lein script is meant for downstream packagers.
# It has all the cross-platform stuff stripped out as well as the
# logic for running from checkouts and self-upgrading.

LEIN_VERSION="1.6.1"
export LEIN_VERSION

if [ `whoami` = "root" ] && [ "$LEIN_ROOT" = "" ]; then
    echo "WARNING: You're currently running as root; probably by accident."
    echo "Press control-C to abort or Enter to continue as root."
    echo "Set LEIN_ROOT to disable this warning."
    read _
fi

# cd to the project root, if applicable
NOT_FOUND=1
ORIGINAL_PWD="$PWD"
while [ ! -r "$PWD/project.clj" ] && [ "$PWD" != "/" ] && [ $NOT_FOUND -ne 0 ]; do
    cd ..
    if [ "$(dirname "$PWD")" = "/" ]; then
        NOT_FOUND=0
        cd "$ORIGINAL_PWD"
    fi
done

# Support $JAVA_OPTS for backwards-compatibility.
JVM_OPTS=${JVM_OPTS:-"$JAVA_OPTS"}
JAVA_CMD=${JAVA_CMD:-"java"}
LEIN_HOME=${LEIN_HOME:-"$HOME/.lein"}

DEV_PLUGINS="$(ls -1 lib/dev/*jar 2> /dev/null)"
USER_PLUGINS="$(ls -1 "$LEIN_HOME"/plugins/*jar 2> /dev/null)"

artifact_name () {
    echo "$1" | sed -e "s/.*\/\(.*\)/\1/" | \
        rev | sed -e "s/raj[-[:digit:].]*-\(.*\)/\1/" | rev
}

unique_user_plugins () {
    saveIFS="$IFS"
    IFS="$(printf '\n\t')"

    plugins="$(echo "$DEV_PLUGINS"; echo "$USER_PLUGINS")"
    artifacts="$(for i in $plugins; do echo "$(artifact_name "$i")"; done)"
    duplicates="$(echo "$artifacts" | sort | uniq -d)"

    if [ -z "$duplicates" ]; then
        echo "$USER_PLUGINS"
    else
        for i in $USER_PLUGINS; do
            artifact="$(artifact_name "$i")"
            if ! echo "$duplicates" | grep -xq "$artifact"; then
                echo "$i"
            fi
        done
    fi
    IFS="$saveIFS"
}

LEIN_PLUGIN_PATH="$(echo "$DEV_PLUGINS" | tr \\n :)"
LEIN_USER_PLUGIN_PATH="$(echo "$(unique_user_plugins)" | tr \\n :)"
CLASSPATH="$CLASSPATH:$LEIN_PLUGIN_PATH:$LEIN_USER_PLUGIN_PATH:test/:src/"
LEIN_JAR="$HOME/.lein/self-installs/leiningen-$LEIN_VERSION-standalone.jar"
CLOJURE_JAR="/usr/share/java/clojure-1.2.jar:/usr/share/java/asm3.jar"
NULL_DEVICE=/dev/null

# apply context specific CLASSPATH entries
if [ -f .classpath ]; then
    CLASSPATH="`cat .classpath`:$CLASSPATH"
fi

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

SHARE_JARS="ant ant-launcher classworlds clojure-1.2 \
lucene-memory maven-ant-tasks maven-artifact maven-artifact-manager \
maven-error-diagnostics maven-model maven-settings maven-project maven-profile \
maven-repository-metadataplexus-container-default-alpha plexus-interpolation \
plexus-utils wagon-file wagon-http-lightweight wagon-http-shared wagon-provider-api \
xml-apis lucene-core lucene-highlighter clucy robert-hooke lancet \
backport-util-concurrent" # NFI why that last one is necessary
for JAR in $SHARE_JARS; do
    CLASSPATH="$CLASSPATH":"/usr/share/java/$JAR.jar"
done

# Keep already-packaged Leiningen jar off the classpath during packaging.
if [ ! -r src/leiningen/core.clj ]; then
    CLASSPATH="$CLASSPATH":/usr/share/java/leiningen-$LEIN_VERSION.jar
fi

if [ $DEBUG ]; then
    echo $CLASSPATH
    echo $CLOJURE_JAR
fi

# Use rlwrap if appropriate
if ([ "$1" = "repl" ] || [ "$1" = "interactive" ] || [ "$1" = "int" ]) &&
    [ -z $INSIDE_EMACS ] && [ "$TERM" != "dumb" ]; then
    which rlwrap > /dev/null
    if [ $? -eq 0 ]; then
        RLWRAP="rlwrap -m -q '\"'" # custom quote chars
    fi
fi

if [ "$1" = "trampoline" ]; then
        TRAMPOLINE_FILE="/tmp/lein-trampoline-$$"
        $JAVA_CMD -Xbootclasspath/a:"$CLOJURE_JAR" -client $JVM_OPTS \
            -Dleiningen.original.pwd="$ORIGINAL_PWD" \
            -Dleiningen.trampoline-file=$TRAMPOLINE_FILE -cp "$CLASSPATH" \
            clojure.main -e "(use 'leiningen.core)(-main)" \
            $NULL_DEVICE "$@"
        if [ -r $TRAMPOLINE_FILE ]; then
            TRAMPOLINE="$(cat $TRAMPOLINE_FILE)"
            rm $TRAMPOLINE_FILE
            exec sh -c "TRAMPOLINE"
        fi
else
        exec $RLWRAP $JAVA_CMD -Xbootclasspath/a:"$CLOJURE_JAR" -client $JVM_OPTS \
            -Dleiningen.original.pwd="$ORIGINAL_PWD" \
            -cp "$CLASSPATH" clojure.main -e "(use 'leiningen.core)(-main)" \
            $NULL_DEVICE "$@"
fi