#!/bin/bash -e
set -x

cd $(dirname $0)/..

source scripts/version

while [ "$#" -gt 0 ]; do
    case $1 in
        --custom)
            IN_DOCKER=true
            ROS_CUSTOM_GOPATH=true
            ;;
        *)
            break
            ;;
    esac
    shift 1
done

if [ "$IN_DOCKER" != "true" ]; then
    cat > .dockerfile << "EOF"
FROM rancher/dind:v0.1.0
COPY ./scripts/bootstrap /scripts/bootstrap
RUN /scripts/bootstrap
WORKDIR /source
ENV IN_DOCKER true
EOF

    docker build -t rancher-os-go-build -f .dockerfile .
    docker run --rm -v $(pwd):/source -it rancher-os-go-build ./scripts/build
    exit 0
fi

if [[ ! -x "$(which go)" && -x /usr/local/go/bin/go ]]; then
    PATH=/usr/local/go/bin:${PATH}
fi

if [ -z "$ROS_CUSTOM_GOPATH" ]; then
    export GOPATH=$(pwd)/Godeps/_workspace:$(pwd)/gopath
fi

PACKAGE=./gopath/src/$(<.package)

if [ -L ${PACKAGE} ]; then
    rm ${PACKAGE}
fi

if [ ! -e ${PACKAGE} ]; then
    mkdir -p $(dirname $PACKAGE)
    ln -s $(pwd) $PACKAGE
fi

echo export GOPATH=$GOPATH

mkdir -p bin
go build -tags netgo -ldflags "-X github.com/rancherio/os/config.VERSION ${VERSION:-v0.0.0-dev} -linkmode external -extldflags -static" -o bin/rancheros
strip --strip-all bin/rancheros