bootstrap

#!/usr/bin/env bash

cd "$(dirname "$0")"
if [ $(basename $0) = "post-checkout" -o $(basename $0) = "post-merge" ]; then
    cd ../..
fi

mkdir -p .git/hooks

# install bootstrap as checkout hook
if [ ! -e .git/hooks/post-checkout ]; then
    while [ "$answer" != "y" -a "$answer" != "n" ]; do
        echo
        echo "Bootstrap installs dependencies for you and creates the Javascript bundle."
        echo "It is advisable to run it on every checkout."
        echo
        echo -n "Do you want to run bootstrap on every checkout automatically? (y/n) "
        read answer
    done
    if [ $answer == "y" ]; then
        ln -sf ../../bootstrap .git/hooks/post-checkout
        ln -sf ../../bootstrap .git/hooks/post-merge
    fi
fi

vercmp () {
    local i IFS=.
    local v1=($1) v2=($2)
    for ((i=${#v1[@]}; i<${#v2[@]}; i++)); do v1[i]=0; done
    for ((i=${#v2[@]}; i<${#v1[@]}; i++)); do v2[i]=0; done
    for ((i=0; i<${#v1[@]}; i++)); do
        ((10#${v1[i]} > 10#${v2[i]})) && return 1
        ((10#${v1[i]} < 10#${v2[i]})) && return 2
    done
    return 0
}


# ensure that node is in path and its version is high enough
node=$(which node 2>/dev/null)

if [ -n "$node" ]; then
    nver=$($node -v)
    vercmp ${nver#v} 0.8
    (($? == 2)) && unset node
fi

if [ "$node" == "" ]; then
    if [ ! -d .node ]; then
        mach=$(uname -sm)
        if [ "$mach" == "Darwin x86_64" ]; then
            FILE="node-v0.8.20-darwin-x64.tar.gz"
            HASH="2b87bf077022b8fa1cbcec10ea3866574fed2b75"
        elif [ "$mach" == "Darwin i368" ]; then
            FILE="node-v0.8.20-darwin-x86.tar.gz"
            HASH="42023ffbdbf36ef69250bd750f112e684eb97008"
        elif [ "$mach" == "Linux x86_64" ]; then
            FILE="node-v0.8.20-linux-x64.tar.gz"
            HASH="93480cbc67f2c757879228434bce1fd765db7df8"
        elif [[ "$mach" =~ Linux\ i.86 ]]; then
            FILE="node-v0.8.20-linux-x86.tar.gz"
            HASH="7fedae5ce4b366d5dcaa7f2e770b3ff739648a51"
        else
            echo "Local nodejs installation was not implemented for your OS."
            echo "Please install nodejs."
            exit 1
        fi
        curl -O "http://nodejs.org/dist/v0.8.20/$FILE" &&
        shasum $FILE | grep -w $HASH &&
        tar xfz $FILE &&
        rm $FILE &&
        mv ${FILE%.tar.gz} .node
        echo "Node installed locally."
    fi
fi

if [ -d .node ]; then
    export PATH=$PWD/.node/bin:$PATH
fi

{
    # npm's stderr is too noisy
    npm install 2>&1 &&
    npm install bungle --force 2>&1 &&
    node_modules/.bin/bungle update &&
    node_modules/.bin/bungle install
}

if [ ! -f src/lib/depends_parse.js -o src/lib/depends_parse.js -ot src/lib/depends_parse.pegjs ] ; then
	node_modules/.bin/pegjs src/lib/depends_parse.pegjs
	sed -i~ -e '1s/.*/define(function() {/' -e '$s/()//' src/lib/depends_parse.js || rm -f src/lib/depends_parse.js
fi

if [ $? == 0 ]; then
    echo
    echo "All done \o/"
    echo
fi