publish_vm

#! /bin/sh
set -euo pipefail

# This script publishes recently built Vagrant Box located in
# `./results` directory on Vagrant Cloud.

TOKEN=${VAGRANTCLOUD_TOKEN}

orgname=${orgname:-BaseALT}
target=${target:-alt-server}
arch=${arch:-x86_64}
BASE_VERSION=${BASE_VERSION:-9}
TARGET_VERSION=${TARGET_VERSION:-9}
VM_TYPE=${VM_TYPE:-qemu}

# Vagrant Cloud forbade underscores in box names
vagrant_arch="${arch}"
if test "${vagrant_arch}" == "x86_64"; then
	vagrant_arch="amd64"
fi

# Path to Vagrant box configuration file
box_config="./config/${target}-${BASE_VERSION}-${arch}.json"
vagrantcloud_path="${orgname}/${target}-${TARGET_VERSION}-${vagrant_arch}"

# Check that the variable is set to correct value
# $1 - variable name
# $2 - variable value
# $* - list of all possible values
assert_value() {
	variable_name="${1}"
	variable_value="${2}"
	shift 2
	possible_values="$*"
	comparison_success=false

	echo "CHECKING: ${variable_name}, must be one of: ${possible_values}"

	for pval in ${possible_values}; do
		if test "${variable_value}" == "${pval}"; then
			comparison_success=true
			break
		fi
	done

	if test "${comparison_success}" == "true"; then
		echo "CHECKING: ${variable_name}, SUCCESS"
		return 0
	else
		echo "CHECKING: ${variable_name}, FAIL"
		return 1
	fi
}


# Free any used resources on errors
cleanup() {
	echo "Logging out of Vagrant cloud"
	vagrant cloud auth logout
}

# Check if specific image version is already present on Vagrantup so
# we won't overwrite it.
check_version_present() {
	repo_version=$(jq -r '.image_version' ${box_config})
	box_info=$(vagrant cloud box show "${vagrantcloud_path}")
	remote_version=$(echo "${box_info}" | awk '/current_version/ {print $2} /Current Version/ { print $3 }')

	if test "${repo_version}" == "${remote_version}"; then
		echo "Box version ${remote_version} is already present on Vagrantup"
		exit 2
	fi
}


main() {
	assert_value target ${target} alt-server alt-workstation alt-kworkstation
	assert_value arch ${arch} i586 x86_64
	assert_value BASE_VERSION ${BASE_VERSION} '8.2' '8.3' '8sp' '8.1sp' '9' '9.1' 'sisyphus'
	assert_value TARGET_VERSION ${TARGET_VERSION} '8.2' '8.3' '8sp' '8.1sp' '9' '9.1' 'sisyphus'
	assert_value VM_TYPE ${VM_TYPE} qemu onebula vbox

	if test "${BASE_VERSION}" == "sisyphus"; then
		TARGET_VERSION="sisyphus"
	fi

	box_file=results/${VM_TYPE}-${target}-${TARGET_VERSION}-${arch}.box

	provider="${VM_TYPE}"
	if test "${VM_TYPE}" == "vbox"; then
		provider="virtualbox"
	fi
	if test "${VM_TYPE}" == "onebula"; then
		echo "OpenNebula provider is not supported by Vagrant Cloud"
		exit 1
	fi
	assert_value provider ${provider} virtualbox qemu libvirt

	vagrant cloud auth login --token "${TOKEN}"

	# Check that publish won't overwrite the box.
	check_version_present

	vagrant cloud publish \
		${vagrantcloud_path} \
		`jq -r '.image_version' ${box_config}` \
		${provider} \
		${box_file} \
		-f
}


# Resource cleanup handler
trap cleanup EXIT INT HUP

main