Script to cut Asciidoctor EPUB3 release

cut-release.sh

#!/usr/bin/bash

# GEM_VERSION=1.5.0.alpha.10 NEXT_GEM_VERSION=1.5.0.alpha.11.dev ./cut-release.sh -p

PUSH=false
while getopts "p" option; do
  case $option in
    p) PUSH=true ;;
  esac
done

if [ -z "$GEM_VERSION" ]; then
  GEM_VERSION=$(bundle exec ruby -e "print (Gem::Version.new Asciidoctor::Epub3::VERSION).release")
fi

# TODO make sure copyright year is correct in README.adoc and LICENSE.adoc
sed -i "/VERSION/s/'[^']\+'/'$GEM_VERSION'/" lib/*/version.rb
sed -i "3i v$GEM_VERSION, $(date +%Y-%m-%d)" README.adoc
#sed -i "s/^:release-version:.*/:release-version: $GEM_VERSION/" README*.adoc
sed -i "s/^== Unreleased/== $GEM_VERSION ($(date +%Y-%m-%d)) - @mojavelinux/" CHANGELOG.adoc
git commit -a -m "Release $GEM_VERSION"
git tag -m "Version $GEM_VERSION" v$GEM_VERSION

if [ $PUSH == true ]; then
  git push origin $(git describe --tags --exact-match)
fi

if [ -z "$NEXT_GEM_VERSION" ]; then
  NEXT_GEM_VERSION=$(bundle exec ruby -e "print (Gem::Version.new Asciidoctor::Epub3::VERSION).segments.tap {|s| s.pop if s.size == 4; s[-1] += 1 }.join('.') + '.dev'")
fi

sed -i "/VERSION/s/'[^']\+'/'$NEXT_GEM_VERSION'/" lib/*/version.rb
sed -i 3d README.adoc

read -p 'Press <Enter> once release finishes...'

git commit -m "Begin development on next version [skip ci]" .
if [ $PUSH == true ]; then
  git push origin $(git rev-parse --abbrev-ref HEAD)
fi