action.yaml

name: "cleanlab/deploy-bot"
description: "Deployment merge handler."
author: "Ryan Singman @ Cleanlab"
inputs:
  source:
    description: source branch to create merge from
    required: false
    default: "staging"
  target:
    description: target branch to merge into
    required: false
    default: "main"
  pr_body:
    description: contents of body of PR
    required: false
    default: ":robot: *Automated PR for daily deployment* :robot:"
  pr_label:
    description: labels for PR, as comma-separated list
    required: false
    default: ""
  should_add_reviewers:
    description: whether to add reviewers to PR
    required: false
    default: "true"
  required_reviewers:
    description: reviewers required for all PRs
    required: false
    default: ""

runs:
  using: composite
  steps:
    # checkout <source> branch of repo
    - uses: actions/checkout@v3
      with:
        ref: ${{ inputs.source }}

    - uses: actions/setup-python@v4
      with:
        cache: "pip" # caching pip dependencies

    - name: Create virtualenv
      run: |
        python -m venv ~/.venv
        . ~/.venv/bin/activate
        echo PATH=$PATH >> $GITHUB_ENV
      shell: bash

    # install Python dependencies for action
    - run: |
        pip install -r $GITHUB_ACTION_PATH/requirements.txt
      shell: bash
        
    # set date str
    - run: |
        echo "DATE=$(date +'%m-%d-%Y')" >> $GITHUB_ENV
      shell: bash

    # name deployment branch
    - run: |
        echo "DEPLOYMENT_BRANCH=deployment/${{ env.DATE }}" >> $GITHUB_ENV
      shell: bash

    # create deployment branch off of source branch
    # named deployment_{date}
    - run: |
        git checkout -b ${{ env.DEPLOYMENT_BRANCH }} \
        && git push --set-upstream origin ${{ env.DEPLOYMENT_BRANCH }}
      shell: bash

    # get list of reviewers for PR
    - run: |
        echo "REVIEWERS=$( \
            GITHUB_TOKEN=${{ github.token }} \
            python $GITHUB_ACTION_PATH/deploy_bot/get_reviewers.py \
            --repository ${{ github.repository }} \
            --head-branch=${{ env.DEPLOYMENT_BRANCH }} \
            --base-branch=${{ inputs.target }} \
            --required-reviewers=${{ inputs.required_reviewers }} \
            --should-add-reviewers=${{ inputs.should_add_reviewers }} \
        )" >> $GITHUB_ENV
      shell: bash

    # create PR to target branch from deployment branch
    - uses: repo-sync/pull-request@v2
      with:
        source_branch: ${{ env.DEPLOYMENT_BRANCH }}
        destination_branch: ${{ inputs.target }}
        pr_title: "Deployment: ${{ env.DATE }}"
        pr_body: ${{ inputs.pr_body }}
        pr_label: ${{ inputs.pr_label }}
        pr_allow_empty: false
        pr_reviewer: ${{ env.REVIEWERS }}
        github_token: ${{ github.token }}