A Vagrantfile for building an Elixir rpm for Centos 7

Vagrantfile

$script = <<'SCRIPT'

echo "elixir packaging"

# --------------------------------------
# Change to the vagrant shared directory
# --------------------------------------
cd /vagrant

# ------------------------------------------------------
# Install git so the elixir packaging repo can be cloned
# Install wgt to pull down more recent erlang rpms
# Install rpmdevtools for spectool
# The other rpms are for rpmbuil support
# ------------------------------------------------------
yum install -y git rpm-build redhat-rpm-config rpmdevtools wget

# ------------------------------
# Setup the rpmbuild environment
# ------------------------------
mkdir -p /home/vagrant/rpmbuild/{BUILD,RPMS,SOURCES,SPECS,SRPMS}
echo '%_topdir /home/vagrant/rpmbuild' > ~/.rpmmacros

# --------------------------------------------------------------------
# Pull down more a more recent erlang version from erlang-solutions.com
# elixir requires at least erlang 18 and epel's still at 16
# ---------------------------------------------------------------------
rm -rf erlang-solutions-1.0-1.noarch.rpm
wget http://packages.erlang-solutions.com/erlang-solutions-1.0-1.noarch.rpm
rpm -Uvh erlang-solutions-1.0-1.noarch.rpm
rm -rf erlang-solutions-1.0-1.noarch.rpm

# ------------------------------------------------------------------
# Install erlang-rpm-macros for the %{rebar_*} macros in elixir.spec
# THis is done after installing the erlanbd-solutions rpm is installed
# so newer dependencies are pulled in
# ------------------------------------------------------------------
yum install -y erlang-rpm-macros

# --------------------------------------------------
# Install other erlang dependencies needed by elixir
# --------------------------------------------------
yum install -y erlang-rebar

# -------------------------------
# Clone the elixir packaging repo
# -------------------------------
cd /vagrant
rm -rf ./elixir
git clone https://src.fedoraproject.org/git/rpms/elixir.git ./elixir

# --------------------------------------------------------
# Use spectool to download the latest elixir source tar.gz
# ----------------------------------------------------------
cd elixir
spectool -g -R elixir.spec

# Do the sweet sweet elixir build.  
# Skipping over the %check block since the %{rebar_enuit} isn't
# in the latest EPEL version of erlang-rpm-macros
rpmbuild -bb --nocheck elixir.spec

# ------------------------------------
# Put the rpm in your shared directory
# ------------------------------------
cp /home/vagrant/rpmbuild/RPMS/x86_64/elixir*.rpm /vagrant
echo "PROFIT"

SCRIPT

Vagrant.configure("2") do |config|
  config.vm.box = "centos/7"
  config.vm.network :forwarded_port, guest: 8093, host: 8093
  config.vm.provision "shell", inline: $script
  config.vm.synced_folder ".", "/vagrant", type: "sshfs"
end