code_freeze_start.yml

name: Start code freeze

on:
  workflow_dispatch:
  milestone:
    types: [opened, created, edited]

jobs:
  start_code_freeze:
    if: | 
      github.event_name == 'workflow_dispatch' || 
      (github.event.milestone.title == 'Code Freeze' && github.event.milestone.state == 'open') 
    runs-on: ubuntu-latest
    env:
      GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

    steps:
    - uses: octokit/request-action@v2.x
      name: 'Open Code Freeze Milestone'
      id: milestones
      if: github.event_name == 'workflow_dispatch'
      with:
        route: PATCH /repos/{owner}/{repo}/milestones/115
        owner: DataDog
        repo: dd-trace-dotnet
        state: open
      env:
        GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

    - uses: octokit/request-action@v2.x
      name: 'Get open PRs'
      id: prs
      with:
        route: GET /repos/{owner}/{repo}/pulls
        owner: DataDog
        repo: dd-trace-dotnet
        state: open
        base: master
        per_page: 100 # max value, for simplicity. If we have more than 100 pull requests open, then we need to revisit!
      env:
        GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

    - run: |
        set -o pipefail
        json=$(cat << 'ENDOFMESSAGE'
          ${{ steps.prs.outputs.data }}
        ENDOFMESSAGE
        )
        arrayLength=$(echo $json | jq -r 'length')
        echo "Updating code freeze  status for $arrayLength PRs" 

        arrayLength=$((arrayLength-1))
        for i in $(seq 0 $arrayLength); do
          title=$(echo $json | jq -r ".[$i].title")
          echo "Setting code freeze for '$title'" 
          sha=$(echo $json | jq -r ".[$i].head.sha")
          targetUrl="https://github.com/DataDog/dd-trace-dotnet/actions/workflows/code_freeze_start.yml"

          curl -X POST \
            -H "Accept: application/vnd.github.v3+json" \
            -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
              "https://api.github.com/repos/DataDog/dd-trace-dotnet/statuses/$sha" \
              -d '{"state":"failure","context":"code_freeze","description":"A code freeze is in place","target_url":"'"$targetUrl"'"}'
        done
      name: 'Update all PRs with Code Freeze status'

    - name: Trigger AAS deploy
      run: |
        curl -X POST \
        -H "Accept: application/vnd.github.v3+json" \
        -H "Authorization: Bearer ${{ secrets.GH_TOKEN_PIERO }}" \
        https://api.github.com/repos/DataDog/datadog-aas-extension/dispatches \
        -d '{"event_type": "dd-trace-code-freeze", "client_payload": {"sha":"'"$GITHUB_SHA"'" } }'