upload-release-to-github

#! /usr/bin/env bash

# ===========================================================================
#
# Copyright (c) 2017-2020 Unvanquished Developers
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
# ===========================================================================

# FIXME: this is not ready for non-Alpha/Beta releases

# exit in case of failure
set -e
# error on undefined variable
set -u

# Get github-release with: go get github.com/aktau/github-release
export GITHUB_RELEASE="${GITHUB_RELEASE:-github-release}"
# GitHub Auth token. Generate one from settings
export GITHUB_TOKEN="${GITHUB_TOKEN:-}"

# Github organization and repository like in
# github.com/GITHUB_USER/GITHUB_REPO
export GITHUB_USER='Unvanquished'
export GITHUB_REPO='Unvanquished'

throwError () {
	local format="${1}"
	shift

	printf "ERROR: ${format}\n" "${@}" >&2
	exit 1
}

printHelp () {
	local prog_name="$(basename "${BASH_SOURCE[0]}")"

	sed -e 's/\\t/\t/g' <<-EOF
	${prog_name}: create a release draft on GitHub and upload an archive file

	Usage:

	\t${prog_name} VERSION STATUS FILE

	Note:

	\tGITHUB_TOKEN environment variable must be set

	\tgithub-release must be in PATH
	\tor GITHUB_RELEASE environment variable
	\tmust be set to github-release path

	Example:

	\t${prog_name} 0.51.2 Alpha unvanquished_0.51.2.zip
	EOF

	exit
}

if [ "${1:-}" = '-h' -o "${1:-}" = '--help' ]
then
	printHelp
fi

if [ -z "${GITHUB_TOKEN}" ]
then
	throwError 'empty or missing GITHUB_TOKEN environment variable'
fi

if ! command -v "${GITHUB_RELEASE}" >/dev/null
then
	throwError 'github-release file not in path: %s' "${GITHUB_RELEASE}"
fi

if [ -z "${1:-}" ]
then
	throwError 'missing version number argument'
fi

if [ -z "${2:-}" ]
then
	throwError 'missing version status argument'
fi

if [ -z "${3:-}" ]
then
	throwError 'missing file name argument'
fi

version_number="${1}"
version_status="${2}"
archive_file="${3}"

if ! [ -e "${archive_file}" ]
then
	throwError 'missing file: %s' "${archive_file}"
fi

if ! [ -f "${archive_file}" ]
then
	throwError 'not a file: %s' "${archive_file}"
fi

if [ "$(find . -empty -name "${archive_file}")" = "./${archive_file}" ]
then
	throwError 'empty file: %s' "${archive_file}"
fi

"${GITHUB_RELEASE}" release \
	--tag "v${version_number}" \
	--name "${version_status} ${version_number} Release" \
	--description "${version_status} ${version_number} release for Unvanquished" \
	--pre-release \
	--draft \

"${GITHUB_RELEASE}" upload \
	--tag "v${version_number}" \
	--name "$(basename $archive_file)" \
	--file "${archive_file}"