$ yarn add @changesets/cli && yarn changeset init
#or
$ npm install @changesets/cli && npx changeset init

//📂.changeset/config.json
{
  "$schema": "https://unpkg.com/@changesets/config@2.3.0/schema.json",
  "changelog": "@changesets/cli/changelog",
  "commit": false,
  "fixed": [],
  "linked": [],
  "access": "public",
  "baseBranch": "main",
  "updateInternalDependencies": "patch",
  "ignore": []
}

npx changeset
#or
yarn changeset

# step01) 업데이트 패키지가 무엇인지 설정한다.
# 🦋  Which packages would you like to include? ...

# step02) 패키지의 SEMVER를 결정한다. 선택되지 않은 패키지는 minor 버전으로 업데이트
# 🦋  Which packages should have a major bump? ...

# step03) 변경 사항을 간략하게 입력합니다.
# 🦋  Please enter a summary for this change (this will be in the changelogs). Submit empty line to open external

npx changeset version
#or
yarn changeset version

npx changeset publish
#or
yarn changeset publish

name: Release

on:
  push:
    branches:
      - main

concurrency: ${{ github.workflow }}-${{ github.ref }}

jobs:
  release:
    name: Release
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Repo
        uses: actions/checkout@v3

      - name: Setup Node.js 16.x
        uses: actions/setup-node@v3
        with:
          node-version: 16.x

      - name: Install Dependencies
        run: yarn

      - name: Create Release Pull Request or Publish to npm
        id: changesets
        uses: changesets/action@v1
        with:
          # This expects you to have a script called release which does a build for your packages and calls changeset publish
          publish: yarn release
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

      - name: Send a Slack notification if a publish happens
        if: steps.changesets.outputs.published == 'true'
        # You can do something when a publish happens.
        run: my-slack-bot send-notification --message "A new version of ${GITHUB_REPOSITORY} was published!"

#📂root/.github/workflows/release-action.yml

#changeset publish 이전 단계에 추가
...
- name: Create .npmrc file
        run: |
          cat << EOF > "$HOME/.npmrc"
            email=username@registry-email.com
            //registry.npmjs.org/:_authToken=$NPM_TOKEN
          EOF
				env:
          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

//📂root/package.json
...
  "scripts": {
		...
    "allpackages": "yarn workspaces foreach --no-private --verbose",
    "build": "yarn workspaces foreach run build",
    "build:release": "yarn allpackages exec rm -rf _release && yarn allpackages pack && yarn allpackages exec \"mkdir _release && tar zxvf package.tgz --directory _release && rm package.tgz\"",
    "release": "yarn build:release && changeset publish"
  },

// 📂root/package.json
{
  "name": "project-name",
  "version": "1.0.2",
  "packageManager": "yarn@3.3.1",
  "homepage": "your repository url..",
  "scripts": {
		...
    "allpackages": "yarn workspaces foreach --no-private --verbose",
    "build": "yarn workspaces foreach run build",
    "build:release": "yarn allpackages exec rm -rf _release && yarn allpackages pack && yarn allpackages exec \"mkdir _release && tar zxvf package.tgz --directory _release && rm package.tgz\"",
    "version": "changeset version",
    "release": "yarn build:release && changeset publish"
  },
  "workspaces": [
    "packages/*"
  ],
  "devDependencies": {
		...
  },
  "dependencies": {
		...
  }
}

//📂root/packages/some-package/pacakge.json (하위 패키지)
{
  "name": "@orgname/some-package",
  "packageManager": "yarn@3.3.1",
  "version": "0.5.0",
  "main": "src/index.ts",
  "sideEffects": false,
  "files": [
    "dist"
  ],
  "scripts": {
		...
    "build": "tsup src --dts --format esm,cjs",
    "build:clean": "rimraf dist/"
  },
  "dependencies": {
    "@orgname/A-Package": "workspace:*",
    "@orgname/B-Package": "workspace:*",
		...
  },
  "devDependencies": {
		...
  },
  "peerDependencies": {
		...
  },
  "publishConfig": {
    "access": "public",
    "directory": "_release/package",
    "main": "./dist/index.js",
    "module": "./dist/index.mjs",
    "types": "./dist/index.d.ts"
  }
}

name: Release Action
on:
  push:
    branches:
      - main
  #GitHub Action 수동 실행 허용
  workflow_dispatch:
jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      #Node 셋팅 및 레포지토리 체크아웃
      - name: checkout
        uses: actions/checkout@v2
      - name: Use Node.js 16.x
        uses: actions/setup-node@v2
        with:
          node-version: '16.x'
          token: ${{ secrets.WORKFLOW_TOKEN }}
          fetch-depth: '0'
      - name: Install dependencies
        env:
          YARN_ENABLE_IMMUTABLE_INSTALLS: 'false'
        run: yarn install
        # .npmrc 파일 생성
      - name: Configure npm
        run: |
          cat << EOF > "$HOME/.npmrc"
            email=user-id@email.com #NPM 계정 주소
            //registry.npmjs.org/:_authToken=$NPM_TOKEN 
          EOF          
        env:
          NPM_TOKEN: ${{ secrets.NPM_TOKEN }} #NPM Token
        #패키지들을 빌드
      - name: Build packages
        run: yarn build
        ## Changeset Action을 사용해 NPM Resistry에 배포
      - name: Create Release Pull Request or Publish to npm
        id: changesets
        uses: changesets/action@v1
        with:
          publish: yarn release
        env:
          NPM_TOKEN: ${{secrets.NPM_TOKEN}}
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}