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#!/bin/bash# requires following programs:# - git; I believe you have already installed.# - sed; Both GNU sed and POSIX sed will work.set -eu
GITHUB_BASE="https://github.com"GITHUB_USER="shimataro"GITHUB_REPO="value-schema"
UPSTREAM="origin"
COLOR_ERROR="\033[1;41m"COLOR_SECTION="\033[1;34m"COLOR_COMMAND_NAME="\033[1;34m"COLOR_OPTION="\033[4;36m"COLOR_COMMAND="\033[4m"COLOR_FILE="\033[1;34m"COLOR_BRANCH="\033[1;31m"COLOR_INPUT="\033[1;31m"COLOR_SELECT="\033[1;32m"COLOR_RESET="\033[m"
URL_PRODUCT="${GITHUB_BASE}/${GITHUB_USER}/${GITHUB_REPO}"URL_REPOSITORY="${URL_PRODUCT}.git"URL_COMPARE="${URL_PRODUCT}/compare"URL_RELEASE="${URL_PRODUCT}/releases/new"
function main() {	cd $(dirname ${0})/..
	if [[ $# -lt 1 ]]; then		usage	fi
	local NEW_VERSION=$1	local CURRENT_VERSION=$(		node -e 'console.log(JSON.parse(require("fs").readFileSync("package.json")).version)'	)	local TAG="v${NEW_VERSION}"	local BRANCH="release/v${NEW_VERSION}"	local BASE_BRANCH="${TAG%%.*}"
	check_version_format ${NEW_VERSION}	check_current_branch ${BASE_BRANCH}
	create_branch ${BRANCH} ${BASE_BRANCH}	update_package_version ${NEW_VERSION}	update_changelog ${NEW_VERSION}	verify_package	commit_changes ${NEW_VERSION}	finish ${NEW_VERSION} ${CURRENT_VERSION} ${BRANCH} ${BASE_BRANCH} ${TAG}}
function usage() {	local COMMAND=$(basename ${0})
	echo -e "${COLOR_SECTION}NAME${COLOR_RESET}	${COMMAND} - Prepare for new release
${COLOR_SECTION}SYNOPSIS${COLOR_RESET}	${COLOR_COMMAND_NAME}${COMMAND}${COLOR_RESET} <${COLOR_OPTION}new-version${COLOR_RESET}>
${COLOR_SECTION}DESCRIPTION${COLOR_RESET}	This command will...	- create a new branch for release	- update ${COLOR_FILE}CHANGELOG.md${COLOR_RESET}	- update package version in ${COLOR_FILE}package.json${COLOR_RESET}	- update dependencies version in ${COLOR_FILE}package.json${COLOR_RESET}	- verify	- ...and commit!
	${COLOR_OPTION}new-version${COLOR_RESET} must follow \"Semantic Versioning\" <https://semver.org/>."	exit 1}
function check_version_format() {	if [[ ${1} =~ ^(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)\.(0|[1-9][0-9]*) ]]; then		return	fi
	echo -e "${COLOR_ERROR}ERROR:${COLOR_RESET} Follow \"Semantic Versioning\" <https://semver.org/> for new version." >&2	exit 2}
function check_current_branch() {	local BASE_BRANCH=$1	local CURRENT_BRANCH=$(git rev-parse --abbrev-ref HEAD)	if [ ${CURRENT_BRANCH} = ${BASE_BRANCH} ]; then		return	fi
	echo -e "${COLOR_ERROR}ERROR:${COLOR_RESET} Work on ${COLOR_BRANCH}${BASE_BRANCH}${COLOR_RESET} branch	${COLOR_COMMAND}git checkout ${BASE_BRANCH}${COLOR_RESET}" >&2	exit 2}
function create_branch() {	local BRANCH=$1	local BASE_BRANCH=$2
	git checkout -b ${BRANCH} ${BASE_BRANCH}}
function update_package_version() {	local VERSION=$1
	npm version --no-git-tag-version ${VERSION}}
function update_changelog() {	local VERSION=$1	local DATE=`date "+%Y-%m-%d"`	local KEYWORD="Unreleased"
	sed -i".bak" -r \		-e "s/^((##[[:space:]]+)\[${KEYWORD}\])$/\1\n\n\2[${VERSION}] - ${DATE}/" \		-e "s/^(\[${KEYWORD}\](.*))(v.*)\.\.\.HEAD$/\1v${VERSION}...HEAD\n[${VERSION}]\2\3...v${VERSION}/" \		CHANGELOG.md}
function verify_package() {	npm run verify}
function commit_changes() {	local VERSION=$1
	git add CHANGELOG.md package.json package-lock.json examples/package.json	git commit -m "version ${VERSION}"}
function finish() {	local NEW_VERSION="${1}"	local CURRENT_VERSION="${2}"	local BRANCH="${3}"	local BASE_BRANCH="${4}"	local TAG="${5}"
	local TITLE="${GITHUB_REPO} ${NEW_VERSION} released"	local CHANGELOG=$(		git diff v${CURRENT_VERSION} -- CHANGELOG.md |		sed -r -e '/^[^+]/d' -e 's/^\+(.*)$/\1/' -e '/^## /d' -e '/^\+/d' -e '/^\[/d' |		urlencode |		replace_lf	)	local PRERELEASE=0	if [[ ${NEW_VERSION} == "0."* ]]; then		# < 1.0.0		PRERELEASE=1	fi	if [[ ${NEW_VERSION} =~ -[0-9a-zA-Z] ]]; then		# -alpha, -pre, -rc, etc...		PRERELEASE=1	fi
	echo -e "Branch ${COLOR_BRANCH}${BRANCH}${COLOR_RESET} has been created.Remaining processes are...
1. Make sure all changes are correct	${COLOR_COMMAND}git diff ${BASE_BRANCH} ${BRANCH}${COLOR_RESET}2. Push to remote ${UPSTREAM}	${COLOR_COMMAND}git push --set-upstream ${UPSTREAM} ${BRANCH}${COLOR_RESET}3. Create a pull-request: ${COLOR_BRANCH}${BRANCH}${COLOR_RESET} to ${COLOR_BRANCH}${BASE_BRANCH}${COLOR_RESET}	${URL_COMPARE}/${BASE_BRANCH}...${BRANCH}?expand=1	select ${COLOR_SELECT}Squash and merge${COLOR_RESET}4. Create a new release	${URL_RELEASE}?tag=${TAG}&target=${BASE_BRANCH}&title=$(urlencode <<<"${TITLE}")&body=${CHANGELOG}&prerelease=${PRERELEASE}	Tag version: ${COLOR_INPUT}${TAG}${COLOR_RESET}	Target: ${COLOR_INPUT}${BASE_BRANCH}${COLOR_RESET}	Release title: ${COLOR_INPUT}${TITLE}${COLOR_RESET}	Description this release: (copy and paste CHANGELOG.md)5. Post processing	${COLOR_COMMAND}git checkout ${BASE_BRANCH}${COLOR_RESET}	${COLOR_COMMAND}git pull${COLOR_RESET}	${COLOR_COMMAND}git fetch -p${COLOR_RESET}	${COLOR_COMMAND}git branch -D ${BRANCH}${COLOR_RESET}
That's all!"}
function urlencode() {	# https://developer.mozilla.org/en-US/docs/Glossary/percent-encoding	sed -r \		-e 's/%/%25/g' \		-e 's/\$/%24/g' -e 's/\(/%28/g' -e 's/\)/%29/g' -e 's/\*/%2A/g' -e 's/\+/%2B/g' -e 's/\//%2F/g' -e 's/\?/%3F/g' -e 's/\[/%5B/g' -e 's/\]/%5D/g' \		-e 's/!/%21/g' -e 's/#/%23/g' -e 's/&/%26/g' -e "s/'/%27/g" -e 's/,/%2C/g' -e 's/:/%3A/g' -e 's/;/%3B/g' -e 's/=/%3D/g' -e 's/@/%40/g' \		-e 's/ /+/g'}
function replace_lf() {	sed -r \		-e ':a' -e 'N' -e '$!ba' \		-e 's/^\n+//' -e 's/\n+$//' -e 's/\n/%0A/g'}
main "$@"