dub-prebuild

#!/bin/sh

mkdir -p "$1" "$2"
BUILD_DIR=$(cd "$1" && pwd)
CACHE_DIR=$(cd "$2" && pwd)

ARCHIVES=$CACHE_DIR/archives
TOOLCHAIN=$BUILD_DIR/toolchain
PREFIX=/app/opt
CACHE_PREFIX=$CACHE_DIR/opt

mkdir -p $ARCHIVES $TOOLCHAIN $CACHE_PREFIX
if [ ! -e $PREFIX ]; then
    ln -s $CACHE_PREFIX $PREFIX
fi

LIBEVENT_ARCHIVE_PATH=https://github.com/downloads/libevent/libevent
LIBEVENT_ARCHIVE=libevent-2.0.21-stable
LIBEVENT_DIR=$TOOLCHAIN/$LIBEVENT_ARCHIVE
LIBEVENT_VERSION=libevent_pthreads-2.0.so.5.1.9

LIBEV_ARCHIVE_PATH=http://dist.schmorp.de/libev
LIBEV_ARCHIVE=libev-4.15
LIBEV_DIR=$TOOLCHAIN/$LIBEV_ARCHIVE
LIBEV_VERSION=libev.so.4.0.0

echo "dub-prebuild "

# Build libevent
if [ ! -f $PREFIX/lib/$LIBEVENT_VERSION ]; then
    echo " + Compile libevent"
    cd $ARCHIVES

    # download source
    if [ ! -f $LIBEVENT_ARCHIVE.tar.gz ]; then
        rm -f libevent-*.tar.gz
        curl -L --retry 3 "$LIBEVENT_ARCHIVE_PATH/$LIBEVENT_ARCHIVE.tar.gz" -o $LIBEVENT_ARCHIVE.tar.gz
    fi

    # extract
    mkdir -p $LIBEVENT_DIR
    cd $LIBEVENT_DIR/..
    rm -rf $LIBEVENT_DIR
    tar xzf $ARCHIVES/$LIBEVENT_ARCHIVE.tar.gz

    # configure and compile
    cd $LIBEVENT_DIR
    ./configure --prefix=$PREFIX
    make all install
fi

# Build libev
if [ ! -f $PREFIX/lib/$LIBEV_VERSION ]; then
    echo " + Compile libev"
    cd $ARCHIVES

    # download source
    if [ ! -f $LIBEV_ARCHIVE.tar.gz ]; then
        rm -f libev-*.tar.gz
        curl -L --retry 3 "$LIBEV_ARCHIVE_PATH/$LIBEV_ARCHIVE.tar.gz" -o $LIBEV_ARCHIVE.tar.gz
    fi

    # extract
    mkdir -p $LIBEV_DIR
    cd $LIBEV_DIR/..
    rm -rf $LIBEV_DIR
    tar xzf $ARCHIVES/$LIBEV_ARCHIVE.tar.gz

    # configure and compile
    cd $LIBEV_DIR
    ./configure --prefix=$PREFIX
    make all install
fi

# Copy compiled libs to app
cp -R $CACHE_PREFIX $BUILD_DIR/opt

# Extra build to resolve initial deps
echo " + Resolving dependencies"

dub -q build