#!/bin/bash
set -ve

ARCH=amd64
PROVISION="scripts/provision/$BOX/vagrant"
OS=$(basename $BOX)

if [ ! -f /etc/vagrant_box_build_time ]; then
    echo "This script should only be called during vagrant provisioning"
    exit 1
fi

if [[ $HOME == /go/* ]]; then
    echo "Must not launch vagrant from /go/"
    exit 1
fi 

# --- Default to root user for vagrant ssh
cat <<\EOF >/etc/profile.d/root.sh
[ $EUID -ne 0 ] && exec sudo -i
EOF

# --- Setup basic env
cat <<EOF >/etc/profile.d/env.sh
export GO111MODULE=off
export GOPATH="$GOPATH"
export PATH=/usr/local/bin:$PATH:/usr/local/go/bin:$GOPATH/bin
export HOME="$HOME" && cd
EOF
. /etc/profile.d/env.sh

if [ -z "${GOPATH}" ]; then
    GOPATH=$(realpath $HOME/../../../..)
    echo "WARNING: Assuming GOPATH=$GOPATH"
else
    echo "Using parent GOPATH=$GOPATH"
fi
goversion=$(grep "^FROM " Dockerfile.dapper | sed -e 's/^FROM golang:\(.*\)-.*/\1/')

if [ -z "$goversion" ]; then
    echo "Cannot find version of go to fetch"
    exit 1
fi

# clean go cache
rm -rf .cache/go-build || true

# --- Run vagrant provision script if available
if [ ! -f "${PROVISION}" ]; then
  echo 'WARNING: Unable to execute provision script "${PROVISION}"'
  exit
fi
echo "running '${PROVISION}'..." && \
  . ${PROVISION} && \
  echo "finished '${PROVISION}'!"