#!/bin/sh

set -e

# Ensure we're in the project root

cd $(dirname "$0")/..

# Build the new gem

rm -rf cloudcannon-jekyll-*.gem
gem build -q cloudcannon-jekyll.gemspec

# Ensure we're on the legacy branch

(git branch | grep -q '* legacy') || {
	echo "Only release from the legacy branch."
	exit 1
}

# Figure out what version we're releasing

tag=v`ls cloudcannon-jekyll-*.gem | sed 's/^cloudcannon-jekyll-\(.*\)\.gem$/\1/'`

# Ensure we haven't released this version before

git fetch -t origin

(git tag -l | grep -q "$tag") && {
	echo "Whoops, there's already a '${tag}' tag."
	exit 1
}

# Push tag and upload new gem

git tag "$tag" &&
	git push origin legacy &&
	git push origin "$tag" &&
	gem push cloudcannon-jekyll-*.gem