cd.yaml

name: 'CD'

on:
    push:
        branches:
            - main
            - master

jobs:
    check-package-version:
        name: Check package version and detect an update
        runs-on: ubuntu-20.04
        outputs:
            repo-version: ${{ steps.check-package-version.outputs.repo-version }}
            published-version: ${{ steps.check-package-version.outputs.published-version }}
            is-unpublished-version: ${{ steps.check-package-version.outputs.is-unpublished-version }}
        steps:
            - name: Checkout the repository
              uses: actions/checkout@v2

            - name: Check package version and detect an update
              id: check-package-version
              uses: PostHog/check-package-version@v1

    release:
        name: Publish release if new version
        runs-on: ubuntu-20.04
        needs: check-package-version
        if: needs.check-package-version.outputs.is-unpublished-version == 'true'
        env:
            REPO_VERSION: ${{ needs.check-package-version.outputs.repo-version }}
            PUBLISHED_VERSION: ${{ needs.check-package-version.outputs.published-version }}
        steps:
            - name: Checkout the repository
              uses: actions/checkout@v2
              with:
                  fetch-depth: 0
                  token: ${{ secrets.POSTHOG_BOT_GITHUB_TOKEN }}

            - name: Set up Node 14
              uses: actions/setup-node@v2
              with:
                  node-version: 14
                  registry-url: https://registry.npmjs.org

            - name: Install dependencies
              run: yarn --frozen-lockfile

            - name: Publish the package in the npm registry
              run: npm publish --access public
              env:
                  DATABASE_URL: 'postgres://postgres:postgres@localhost:${{ job.services.postgres.ports[5432] }}/postgres'
                  REDIS_URL: 'redis://localhost'
                  NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}

            - name: Create GitHub release
              uses: actions/create-release@v1
              env:
                  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
              with:
                  tag_name: v${{ env.REPO_VERSION }}
                  release_name: ${{ env.REPO_VERSION }}

    create-pull-requests:
        name: Create main repo PR with new plugin-scaffold version
        runs-on: ubuntu-20.04
        needs: [check-package-version, release]
        env:
            REPO_VERSION: ${{ needs.check-package-version.outputs.repo-version }}
            PUBLISHED_VERSION: ${{ needs.check-package-version.outputs.published-version }}
        steps:
            - name: Check out main repo
              uses: actions/checkout@v2
              with:
                  path: posthog
                  repository: PostHog/posthog
                  token: ${{ secrets.POSTHOG_BOT_GITHUB_TOKEN }}

            - name: Check out plugin-scaffold repo
              uses: actions/checkout@v2
              with:
                  path: plugin-scaffold
                  fetch-depth: 0

            - name: Install new plugin-scaffold version in main repo
              id: yarn-upgrade-posthog
              run: |
                  cd posthog/
                  OUTGOING_VERSION=$(jq '.dependencies["@posthog/plugin-scaffold"]' package.json -r)
                  echo "::set-output name=outgoing-version::$OUTGOING_VERSION"
                  for i in $(seq 1 $RETRY_TIMES); do
                      # Retry loop because of npm being _eventually_ consistent
                      if yarn upgrade @posthog/plugin-scaffold@${{ env.REPO_VERSION }}; then
                          break
                      else
                          [ $i -ne $RETRY_TIMES ] && sleep $RETRY_WAIT_SECONDS || false
                      fi
                  done
                  for i in $(seq 1 $RETRY_TIMES); do
                      if yarn --cwd plugin-server upgrade @posthog/plugin-scaffold@${{ env.REPO_VERSION }}; then
                          break
                      else
                          [ $i -ne $RETRY_TIMES ] && sleep $RETRY_WAIT_SECONDS || false
                      fi
                  done
              env:
                  RETRY_TIMES: 20
                  RETRY_WAIT_SECONDS: 5

            - name: Determine changelog
              id: changelog
              run: |
                  cd plugin-scaffold
                  PULL_REQUESTS=$(git log v${{ steps.yarn-upgrade.outputs.outgoing-version }}..v${{ env.REPO_VERSION }} --pretty=format:%s --grep='^.*\d*)$' --reverse | sed -e 's;(#;(PostHog/plugin-scaffold#;' -e 's/^/- /')
                  # Escape characters that are problematic for GitHub Actions set-output
                  PULL_REQUESTS="${PULL_REQUESTS//'%'/'%25'}"
                  PULL_REQUESTS="${PULL_REQUESTS//$'\n'/'%0A'}"
                  PULL_REQUESTS="${PULL_REQUESTS//$'\r'/'%0D'}"
                  echo "::set-output name=pull-requests::$PULL_REQUESTS"

            - name: Create main repo pull request
              id: main-repo-pr
              uses: peter-evans/create-pull-request@v3
              with:
                  token: ${{ secrets.POSTHOG_BOT_GITHUB_TOKEN }}
                  path: posthog
                  commit-message: 'chore(deps): Update plugin-scaffold to ${{ env.REPO_VERSION }}'
                  branch: plugin-scaffold-${{ env.REPO_VERSION }}
                  delete-branch: true
                  title: 'chore(deps): Update plugin-scaffold to ${{ env.REPO_VERSION }}'
                  labels: automerge
                  body: |
                      ## Changes
                      plugin-scaffold version ${{ env.REPO_VERSION }} has been released. This updates PostHog to use it.
                      https://github.com/PostHog/plugin-scaffold/compare/v${{ steps.yarn-upgrade.outputs.outgoing-version }}...v${{ env.REPO_VERSION }}:
                      ${{ steps.changelog.outputs.pull-requests }}
            - name: Output pull request result
              run: |
                  echo "PostHog pull request for plugin-scaffold version ${{ env.REPO_VERSION }} ready: ${{ steps.main-repo-pr.outputs.pull-request-url }}"