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#!/bin/bash# requires following packages:# - git; I believe you have already installed.# - sed; GNU sed is preferred. POSIX sed may not work.
BASE_BRANCH="develop"
URL_PRODUCT="https://github.com/shimataro/node-adjuster"URL_RELEASE="${URL_PRODUCT}/releases"
COLOR_ERROR="\e[1;41m"COLOR_SECTION="\e[1;34m"COLOR_COMMAND_NAME="\e[1;34m"COLOR_OPTION="\e[4;36m"COLOR_COMMAND="\e[4m"COLOR_FILE="\e[1;34m"COLOR_BRANCH="\e[1;31m"COLOR_INPUT="\e[1;31m"COLOR_SELECT="\e[1;32m"COLOR_RESET="\e[m"
function main() {	cd `dirname ${0}`
	if [ $# -lt 1 ]; then		usage ${0}	fi
	local VERSION=$1	local BRANCH="feature-v${VERSION}"	local TAG="v${VERSION}"
	check_version_format ${VERSION}	check_current_branch
	run create_branch ${BRANCH}	run update_changelog ${VERSION}	run update_package_version ${VERSION}	run update_dependencies_version	run regenerate_npm_shrinkwrap	run verify_package	run commit_changes ${VERSION}	run finish ${VERSION} ${BRANCH} ${TAG}}
function usage() {	local COMMAND=`basename ${1}`
	echo -e "${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 \"Symantec Versioning\" <https://semver.org/>."	exit 1}
function check_version_format() {	if [[ $1 =~ ^[0-9]+\.[0-9]+\.[0-9]+ ]]; then		return	fi
	echo -e "${COLOR_ERROR}ERROR:${COLOR_RESET} Follow \"Semantic Versioning\" for new version: https://semver.org/" >&2	exit 2}
function check_current_branch() {	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 run() {	"$@" || exit 1}
function create_branch() {	local BRANCH=$1
	git checkout -b ${BRANCH} ${BASE_BRANCH}}
function update_changelog() {	local VERSION=$1	local DATE=`date "+%Y-%m-%d"`	local KEYWORD="Unreleased"
	sed -i".bak" -r \		-e "s/^((##\s+)\[${KEYWORD}\])$/\1\n\n\2[${VERSION}] - ${DATE}/" \		-e "s/^(\[${KEYWORD}\](.*))(v.*)\.\.\.HEAD$/\1v${VERSION}...HEAD\n[${VERSION}]\2\3...v${VERSION}/" \		CHANGELOG.md}
function update_package_version() {	local VERSION=$1
	sed -i".bak" -r \		-e "s/(\"version\"\s*:\s*)\".*?\"/\1\"${VERSION}\"/" \		package.json}
function update_dependencies_version() {	npm run check-updates -- -u}
function regenerate_npm_shrinkwrap() {	rm -rf npm-shrinkwrap.json node_modules &&	npm install && npm shrinkwrap}
function verify_package() {	npm test && npm run lint}
function commit_changes() {	local VERSION=$1
	git add CHANGELOG.md package.json npm-shrinkwrap.json &&	git commit -m "version ${VERSION}"}
function finish() {	local VERSION=$1	local BRANCH=$2	local TAG=$3
	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 origin	${COLOR_COMMAND}git push --set-upstream origin ${BRANCH}${COLOR_RESET}3. Visit ${URL_PRODUCT}4. Create a pull-request: ${COLOR_BRANCH}${BRANCH}${COLOR_RESET} to ${COLOR_BRANCH}${BASE_BRANCH}${COLOR_RESET}	select ${COLOR_SELECT}Squash and merge${COLOR_RESET}5. Create a pull-request: ${COLOR_BRANCH}${BASE_BRANCH}${COLOR_RESET} to ${COLOR_BRANCH}master${COLOR_RESET}	select ${COLOR_SELECT}Create a merge commit${COLOR_RESET}6. Create release: ${URL_RELEASE}	Tag version: ${COLOR_INPUT}${TAG}${COLOR_RESET}	Target: ${COLOR_INPUT}master${COLOR_RESET}	Release title: ${COLOR_INPUT}node-adjuster ${VERSION} released${COLOR_RESET}	Description this release: (see CHANGELOG.md)7. Publish!	${COLOR_COMMAND}git checkout master${COLOR_RESET}	${COLOR_COMMAND}git pull${COLOR_RESET}	${COLOR_COMMAND}npm publish --access=public${COLOR_RESET}8. Post processing	${COLOR_COMMAND}git checkout ${BASE_BRANCH}${COLOR_RESET}	${COLOR_COMMAND}git pull${COLOR_RESET}
That's all!"}
main "$@"