continuous-integration.yml

name: Continuous Integration

on:
  push:
    branches:
      - main
    tags:
      - "*"
  pull_request:

env:
  IS_TAG_BUILD: ${{ startsWith(github.event.ref, 'refs/tags') }}

# SECRETS
# - PYPI_TOKEN: publishing token for amn41 account, needs to be maintainer of
#               RasaHQ/rasa-sdk on pypi (account credentials in 1password)

jobs:
  quality:
    name: Code Quality
    runs-on: ubuntu-22.04

    steps:
      - name: Checkout git repository 🕝
        uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3

      - name: Set up Python 3.10 🐍
        uses: actions/setup-python@d27e3f3d7c64b4bbf8e4abfb9b63b83e846e0435
        with:
          python-version: '3.10'

      - name: Read Poetry Version 🔢
        run: |
          echo "POETRY_VERSION=$(scripts/poetry-version.sh)" >> $GITHUB_ENV
        shell: bash

      - name: Install poetry 🦄
        uses: Gr1N/setup-poetry@15821dc8a61bc630db542ae4baf6a7c19a994844
        with:
          poetry-version: ${{ env.POETRY_VERSION }}

      - name: Load Poetry Cached Libraries ⬇
        uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8
        with:
          path: ~/.cache/pypoetry/virtualenvs
          key: ${{ runner.os }}-poetry-3.10-${{ hashFiles('**/poetry.lock') }}
          restore-keys: ${{ runner.os }}-poetry-

      - name: Checkout target branch to be able to diff
        if: github.event_name == 'pull_request'
        run: |
          git fetch origin "${{ github.base_ref }}"
          echo "DOCSTRING_DIFF_BRANCH=origin/${{ github.base_ref }}" >> $GITHUB_ENV

          # Fetch entire history for current branch so that `make lint-docstrings`
          # can calculate the proper diff between the branches
          git fetch --unshallow origin "${{ github.ref }}"

      - name: Install Dependencies 📦
        run: make install

      - name: Listing Dependencies 📦
        run: poetry show

      - name: Lint Code 🎎
        run: |
          # If it's not a pull request, $DOCSTRING_DIFF_BRANCH is unset.
          # This will result in an empty diff, which effictively means that
          # make lint-docstrings will be skipped for other events than `pull_request`
          make lint BRANCH=$DOCSTRING_DIFF_BRANCH

      - name: Check Types 📚
        run: make types

  test:
    name: Run Tests
    runs-on: ubuntu-22.04
    strategy:
      matrix:
        python-version: [3.8, 3.9, '3.10']

    steps:
      - name: Checkout git repository 🕝
        uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3

      - name: Set up Python ${{ matrix.python-version }} 🐍
        uses: actions/setup-python@d27e3f3d7c64b4bbf8e4abfb9b63b83e846e0435
        with:
          python-version: ${{ matrix.python-version }}

      - name: Read Poetry Version 🔢
        run: |
          echo "POETRY_VERSION=$(scripts/poetry-version.sh)" >> $GITHUB_ENV
        shell: bash

      - name: Install poetry 🦄
        uses: Gr1N/setup-poetry@15821dc8a61bc630db542ae4baf6a7c19a994844
        with:
          poetry-version: ${{ env.POETRY_VERSION }}

      - name: Load Poetry Cached Libraries ⬇
        uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8
        with:
          path: ~/.cache/pypoetry/virtualenvs
          key: ${{ runner.os }}-poetry-${{ matrix.python-version }}-${{ hashFiles('**/poetry.lock') }}
          restore-keys: ${{ runner.os }}-poetry-

      - name: Install Dependencies 📦
        run: make install

      - name: Test Code 🔍
        run: make test

      - name: Send Coverage Report 📊
        if: matrix.python-version == '3.10'
        env:
          COVERALLS_REPO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          COVERALLS_SERVICE_NAME: github
        run: poetry run coveralls

  docker_linter:
    name: Lint Dockerfile
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3
      - name: Lint Dockerfile
        uses: brpaz/hadolint-action@1623ba61710b974b55ba455930e6f2c8ef919778
        with:
          dockerfile: "Dockerfile"

  build_docker_image_set_env:
    name: Prepare environment for Docker build
    runs-on: ubuntu-22.04
    outputs:
      # Tag name used for intermediate images created during Docker image builds, e.g. 3886 - a PR number
      image_tag: ${{ steps.set_output.outputs.image_tag }}
      # Return 'true' if tag version is equal or higher than the latest tagged rasa-sdk version
      is_newest_version: ${{ steps.rasa_sdk_get_version.outputs.is_newest_version }}
    steps:
      # Due to an issue with checking out a wrong commit, we make sure
      # to checkout HEAD commit for a pull request.
      # More details: https://github.com/actions/checkout/issues/299
      - name: Checkout pull request HEAD commit instead of merge commit 🕝
        uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3
        if: github.event_name == 'pull_request'
        with:
          ref: ${{ github.event.pull_request.head.sha }}

      - name: Checkout git repository 🕝
        uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3
        if: github.event_name != 'pull_request'

      # Set environment variables for a pull request
      #
      # In this scenario, we've created a PR #1234
      #
      # Example output:
      # IMAGE_TAG=1234
      - name: Set environment variables - pull_request
        if: github.event_name == 'pull_request' && env.IS_TAG_BUILD == 'false'
        run: |
          echo "IMAGE_TAG=${{ github.event.number }}" >> $GITHUB_ENV

      # Set environment variables for a tag
      #
      # In this scenario, we've pushed the '2.4.1' tag
      #
      # Example output:
      # IMAGE_TAG=2.4.1
      - name: Set environment variables - push - tag
        if: github.event_name == 'push' && env.IS_TAG_BUILD == 'true'
        run: |
          TAG_NAME=${GITHUB_REF#refs/tags/}
          echo "IMAGE_TAG=${TAG_NAME}" >> $GITHUB_ENV

      # Set environment variables for a branch
      #
      # In this scenario, we've pushed changes into the main branch
      #
      # Example output:
      # IMAGE_TAG=main
      - name: Set environment variables - push - branch
        if: github.event_name == 'push' && env.IS_TAG_BUILD == 'false'
        run: |
          BRANCH_NAME=${GITHUB_REF#refs/heads/}
          echo "IMAGE_TAG=${BRANCH_NAME}" >> $GITHUB_ENV

      - name: Set output
        id: set_output
        run: |
          echo "image_tag=${{ env.IMAGE_TAG }}" >> $GITHUB_OUTPUT

      - name: Check if tag version is equal or higher than the latest tagged rasa-sdk version
        id: rasa_sdk_get_version
        if: env.IS_TAG_BUILD == 'true'
        run: |
          # Get latest tagged rasa-sdk version
          git fetch --depth=1 origin "+refs/tags/*:refs/tags/*"
          # Fetch branch history
          git fetch --prune --unshallow
          LATEST_TAGGED_NON_ALPHA_RASA_SDK_VERSION=$(git tag | sort -r -V | grep -E "^[0-9.]+$" | head -n1)
          CURRENT_TAG=${GITHUB_REF#refs/tags/}
          # Return 'true' if tag version is equal or higher than the latest tagged rasa-sdk version
          IS_NEWEST_VERSION=$((printf '%s\n%s\n' "${LATEST_TAGGED_NON_ALPHA_RASA_SDK_VERSION}" "$CURRENT_TAG" \
            | sort -V -C && echo true || echo false) || true)


          if [[ "${IS_NEWEST_VERSION}" == "true" && "$CURRENT_TAG" =~ ^[0-9.]+$ ]]; then
            echo "is_newest_version=true" >> $GITHUB_OUTPUT
          else
            echo "is_newest_version=false" >> $GITHUB_OUTPUT
          fi

  build_docker_image:
    name: Build Docker image
    runs-on: ubuntu-22.04
    needs: [quality, test, docker_linter, build_docker_image_set_env]

    steps:
      # Due to an issue with checking out a wrong commit, we make sure
      # to checkout HEAD commit for a pull request.
      # More details: https://github.com/actions/checkout/issues/299
      - name: Checkout pull request HEAD commit instead of merge commit 🕝
        uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3
        if: github.event_name == 'pull_request'
        with:
          ref: ${{ github.event.pull_request.head.sha }}

      - name: Checkout git repository 🕝
        uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3
        if: github.event_name != 'pull_request'

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@4b4e9c3e2d4531116a6f8ba8e71fc6e2cb6e6c8c
        with:
          version: v0.5.1
          driver: docker

      - name: Set environment variables
        run: |
          echo "IMAGE_TAG=${{ needs.build_docker_image_set_env.outputs.image_tag }}" >> $GITHUB_ENV

      - name: Build Docker image
        run: |
          docker buildx bake --load

      - name: Login to Docker Hub Registry 🔢
        if: github.event_name == 'push' && env.IS_TAG_BUILD == 'true' && github.repository == 'RasaHQ/rasa-sdk'
        run: echo ${{ secrets.DOCKER_HUB_PASSWORD }} | docker login -u ${{ secrets.DOCKER_HUB_USERNAME }} --password-stdin || true

      - name: Push Docker image 📦
        if: github.event_name == 'push' && env.IS_TAG_BUILD == 'true' && github.repository == 'RasaHQ/rasa-sdk'
        run: |
          IS_NEWEST_VERSION=${{ needs.build_docker_image_set_env.outputs.is_newest_version }}

          # Push image
          docker push rasa/rasa-sdk:${IMAGE_TAG}

          # Tag the image as latest
          if [[ "${IS_NEWEST_VERSION}" == "true" ]]; then
            docker tag rasa/rasa-sdk:${IMAGE_TAG} rasa/rasa-sdk:latest
            docker push rasa/rasa-sdk:latest
          fi

  deploy:
    name: Deploy to PyPI
    runs-on: ubuntu-22.04

    # deploy will only be run when there is a tag available
    if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags')
    needs: [quality, test, build_docker_image] # only run after all other stages succeeded

    steps:
      - name: Checkout git repository 🕝
        uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3

      - name: Set up Python 3.10 🐍
        uses: actions/setup-python@d27e3f3d7c64b4bbf8e4abfb9b63b83e846e0435
        with:
          python-version: '3.10'

      - name: Read Poetry Version 🔢
        run: |
          echo "POETRY_VERSION=$(scripts/poetry-version.sh)" >> $GITHUB_ENV
        shell: bash

      - name: Install poetry 🦄
        uses: Gr1N/setup-poetry@15821dc8a61bc630db542ae4baf6a7c19a994844
        with:
          poetry-version: ${{ env.POETRY_VERSION }}

      - name: Build ⚒️ Distributions
        run: poetry build

      - name: Publish to PyPI 📦
        uses: pypa/gh-action-pypi-publish@bea5cda687c2b79989126d589ef4411bedce0195
        with:
          user: __token__
          password: ${{ secrets.PYPI_TOKEN }}
          skip_existing: true

      - name: Publish Release Notes 🗞
        if: env.IS_TAG_BUILD
        env:
          GITHUB_TAG: ${{ github.ref }}
          GITHUB_REPO_SLUG: ${{ github.repository }}
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          GITHUB_TAG=${GITHUB_TAG/refs\/tags\//}
          sudo apt-get update
          sudo apt-get -y install pandoc
          pip install -U github3.py pep440_version_utils
          python3 ${GITHUB_WORKSPACE}/scripts/publish_gh_release_notes.py

      - name: Get RASA SDK Version
        env:
          RASA_SDK_VERSION: ${{ github.ref }}
        run: |
          echo "RASA_SDK_VERSION=${RASA_SDK_VERSION/refs\/tags\//}" >> $GITHUB_ENV

      - name: Notify Slack 💬
        if: env.IS_TAG_BUILD && success()
        env:
          SLACK_WEBHOOK: ${{ secrets.SLACK_RELEASE_ASSISTANT_RELEASE_WEBHOOK }}
        uses: Ilshidur/action-slack@2.1.0
        with:
          args: "⚡ New *Rasa SDK* version ${{ env.RASA_SDK_VERSION }} has been released! Changelog: https://github.com/RasaHQ/rasa-sdk/blob/${{ env.RASA_SDK_VERSION }}/CHANGELOG.mdx"

      - name: Notify Slack of Failure ⛔
        if: env.IS_TAG_BUILD && failure()
        env:
          SLACK_WEBHOOK: ${{ secrets.SLACK_RELEASE_ASSISTANT_DEV_TRIBE_WEBHOOK }}
        uses: Ilshidur/action-slack@2.1.0
        with:
          args: "⛔️ *Rasa SDK* version ${{ env.RASA_SDK_VERSION }} could not be released 😱 GitHub Actions: https://github.com/RasaHQ/rasa-sdk/actions?query=branch%3A${{ env.RASA_SDK_VERSION }}"