follow-merge-upstream-repo-sync.yml

name: 'Follow Merge: Upstream repo sync'

on:
  repository_dispatch:
    types:
      - upstream_repo_update

concurrency:
  group: ${{ github.workflow }}-${{ github.event.client_payload.branch_name }}

env:
  UPSTREAM_REPO_WORKDIR: "upstream"

jobs:
  open:
    name: Sync PR
    if: |
      github.event.client_payload.event_action == 'opened' ||
      github.event.client_payload.event_action == 'synchronize' ||
      github.event.client_payload.event_action == 'merged'
    runs-on: ubuntu-latest
    steps:
      - uses: hmarr/debug-action@v3.0.0

      - name: Details
        id: details
        shell: bash
        env:
          REPO_NAME: "${{ github.event.client_payload.repo_name }}"
        run: |
          set -xeuo pipefail
          
          case "${REPO_NAME}" in
            */label-studio-client-generator)
              ;;
            *)
              echo "::error::Repository ${REPO_NAME} is not supported"
              exit 1
              ;;
          esac

      - name: Checkout Actions Hub
        uses: actions/checkout@v4
        with:
          token: ${{ secrets.GIT_PAT }}
          repository: HumanSignal/actions-hub
          path: ./.github/actions-hub

      - name: Parse Follow Merge dispatch event payload
        uses: ./.github/actions-hub/actions/follow-merge-parse-payload
        id: fm

      - name: Find or Create branch
        uses: ./.github/actions-hub/actions/github-find-or-create-branch
        id: get-branch
        with:
          github_token: ${{ secrets.GIT_PAT }}
          branch_name: "${{ steps.fm.outputs.branch_name }}"

      - name: Checkout repo
        uses: actions/checkout@v4
        if: steps.fm.outputs.repo_name && steps.fm.outputs.branch_name
        with:
          token: ${{ secrets.GIT_PAT }}
          repository: ${{ steps.fm.outputs.repo_name }}
          ref: ${{ steps.fm.outputs.branch_name }}
          path: "${{ env.UPSTREAM_REPO_WORKDIR }}"

      - name: Setup node
        uses: actions/setup-node@v4

      - name: "Install poetry"
        run: pipx install poetry

      - name: "Set up Python"
        id: setup_python
        uses: actions/setup-python@v5
        with:
          python-version: '3.12'
#          cache: 'poetry' # Disable cache since label-studio-client-generator does not have poetry.lock

      - name: Download Fern
        run: npm install -g fern-api@latest

      - name: Set Fern Generator Branch and Mode
        env:
          BRANCH_NAME: "${{ steps.get-branch.outputs.branch_name }}"
          FERN_GENERATOR_PATH: "fern/generators.yml"
        working-directory: "${{ env.UPSTREAM_REPO_WORKDIR }}"
        run: |
          yq e --inplace ".groups.python-sdk-staging.generators[0].github.branch |= \"${BRANCH_NAME}\"" "${FERN_GENERATOR_PATH}"
          yq e --inplace ".groups.python-sdk-staging.generators[0].github.mode |= \"push\"" "${FERN_GENERATOR_PATH}"
          cat "${FERN_GENERATOR_PATH}"

      - name: Check Fern API is valid
        working-directory: "${{ env.UPSTREAM_REPO_WORKDIR }}"
        run: fern check

      - name: Generate Python SDK
        env:
          FERN_TOKEN: ${{ secrets.FERN_TOKEN }}
        working-directory: "${{ env.UPSTREAM_REPO_WORKDIR }}"
        run: fern generate --group python-sdk-staging --log-level debug

      - name: Find or Create PR
        uses: ./.github/actions-hub/actions/github-find-or-create-pull-request
        id: get-pr
        with:
          github_token: ${{ secrets.GIT_PAT }}
          branch_name: "${{ steps.get-branch.outputs.branch_name }}"
          title: "${{ steps.fm.outputs.title }}"
          description: |
            Hi @${{ steps.fm.outputs.actor }}!
            
            This PR was automaticaly generated via Follow Merge. 
            Please ensure that all linked upstream Pull Requests are merged before proceeding with this one.

      - name: Add PR Reviewers
        uses: ./.github/actions-hub/actions/github-add-pull-request-reviewers
        continue-on-error: true
        with:
          github_token: ${{ secrets.GIT_PAT }}
          pullrequest_number: "${{ steps.get-pr.outputs.number }}"
          reviewers: "${{ steps.fm.outputs.actor }}"

      - name: Link PR
        uses: ./.github/actions-hub/actions/github-link-upstream-pull-request
        continue-on-error: true
        with:
          github_token: ${{ secrets.GIT_PAT }}
          pullrequest_number: "${{ steps.get-pr.outputs.number }}"
          upstream_pullrequest_link: "${{ steps.fm.outputs.pr_html_url }}"

      - name: Convert to ready for review
        if: steps.fm.outputs.event_action == 'merged'
        id: ready-for-review-pr
        shell: bash
        env:
          GIT_PAT: ${{ secrets.GIT_PAT }}
        run: |
          echo "$GIT_PAT" | gh auth login --with-token
          gh api graphql -F id='${{ steps.get-pr.outputs.node_id }}' -f query='
            mutation($id: ID!) {
              markPullRequestReadyForReview(input: { pullRequestId: $id }) {
                pullRequest {
                  id
                }
              }
            }
          '

      - name: Enable AutoMerge
        if: steps.fm.outputs.event_action == 'merged'
        continue-on-error: true
        shell: bash
        env:
          GIT_PAT: ${{ secrets.GIT_PAT }}
        run: |
          echo "$GIT_PAT" | gh auth login --with-token
          gh api graphql -f pull='${{ steps.get-pr.outputs.node_id }}' -f query='
            mutation($pull: ID!) {
              enablePullRequestAutoMerge(input: {pullRequestId: $pull, mergeMethod: SQUASH}) {
                pullRequest {
                  id
                  number
                }
              }
            }'

      - name: Notify on failure
        uses: ./.github/actions-hub/actions/github-create-comment
        if: failure()
        with:
          github_token: ${{ secrets.GIT_PAT }}
          repository: "${{ steps.fm.outputs.repo_name }}"
          issue_number: "${{ steps.fm.outputs.pr_number }}"
          body: |
            Follow Merge downstream workflow has been failed. 
            > [Workflow run](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }})


  others:
    name: Other actions with PR
    if: |
      github.event.client_payload.event_action == 'converted_to_draft' ||
      github.event.client_payload.event_action == 'ready_for_review' ||
      github.event.client_payload.event_action == 'closed'
    runs-on: ubuntu-latest
    steps:
      - uses: hmarr/debug-action@v3.0.0

      - name: Get PR
        uses: actions/github-script@v7
        id: get-pr
        with:
          github-token: ${{ secrets.GIT_PAT }}
          script: |
            const {repo, owner} = context.repo;
            const branchName = '${{ github.event.client_payload.branch_name }}';
            const branchNameLowerCase = branchName.toLowerCase();
            const {data: listPullsResponse} = await github.rest.pulls.list({
              owner,
              repo,
              head: `${owner}:${branchName}`,
              per_page: 1
            });
            const {data: listPullsResponseLowerCase} = await github.rest.pulls.list({
              owner,
              repo,
              head: `${owner}:${branchNameLowerCase}`,
              per_page: 1
            });
            
            if (listPullsResponse.length !== 0) {
              console.log(`Found PR for branch '${branchName}'`)
              core.setOutput("branch-name", branchName);
              return listPullsResponse
            } else if (listPullsResponseLowerCase.length !== 0) {
              console.log(`Found PR for branch '${branchNameLowerCase}'`)
              core.setOutput("branch-name", branchNameLowerCase);
              return listPullsResponseLowerCase
            } else {
              console.log(`PR for branch '${branchNameLowerCase}' is not created yet`)
              core.setOutput("branch-name", branchNameLowerCase);
              return listPullsResponseLowerCase
            }

      - name: Close PR
        if: github.event.client_payload.event_action == 'closed'
        id: close-pr
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GIT_PAT }}
          script: |
            const { repo, owner } = context.repo;
            const listPullsResponse = ${{ steps.get-pr.outputs.result }}
            for (let pr of listPullsResponse ) {
              core.info(`Closing ${ pr.html_url }`)
              github.rest.pulls.update({
                owner,
                repo,
                pull_number: pr.number,
                state: 'close'
              });
            }

      - name: Convert to draft
        if: github.event.client_payload.event_action == 'converted_to_draft'
        id: convert-pr-to-draft
        shell: bash
        env:
          GIT_PAT: ${{ secrets.GIT_PAT }}
        run: |
          echo "$GIT_PAT" | gh auth login --with-token
          gh api graphql -F id='${{ fromJson(steps.get-pr.outputs.result)[0].node_id }}' -f query='
            mutation($id: ID!) {
              convertPullRequestToDraft(input: { pullRequestId: $id }) {
                pullRequest {
                  id
                  isDraft
                }
              }
            }
          '

      - name: Convert to ready for review
        if: github.event.client_payload.event_action == 'ready_for_review'
        id: ready-for-review-pr
        shell: bash
        env:
          GIT_PAT: ${{ secrets.GIT_PAT }}
        run: |
          echo "$GIT_PAT" | gh auth login --with-token
          gh api graphql -F id='${{ fromJson(steps.get-pr.outputs.result)[0].node_id }}' -f query='
            mutation($id: ID!) {
              markPullRequestReadyForReview(input: { pullRequestId: $id }) {
                pullRequest {
                  id
                }
              }
            }
          '