release-reminder.yml

name: Release Reminder

on:
  schedule:
    - cron: '0 0 * * 4' # Run at midnight on Thursdays
  workflow_dispatch: {}

jobs:
  determine-date:
    name: Release buildpacks on 2nd and last Thursdays of the month
    runs-on: ubuntu-22.04
    outputs:
      should_run: ${{ steps.should_run.outputs.bool }}
    steps:
      - name: Should run
        id: should_run
        run: |
          set -eu
          if [[ ${{ github.event_name }} == 'workflow_dispatch' ]]; then
            echo "Skipping date check, because workflow was run manually"
            echo "bool=true" >> "${GITHUB_OUTPUT}"
          else
            day_of_month=$(date +%d)
            last_day_cutoff=$(expr $(date -d "-$(date +%d) days month" +%d) - 6)
            # Check if it's the second or last Thursday of the month
            # second thursday of the month will always be between day 8 and 14 (inclusive)
            if [ "$day_of_month" -ge "8" && "$day_of_month" -le "14" ]; then
                echo "It's the second Thursday of the month"
                echo "bool=true" >> "${GITHUB_OUTPUT}"
            # last thursday of the month will always be within 6 days of the last day of the month
            # $last_day_cutoff=(# days in this month - 6)
            elif [ "$day_of_month" -ge "$last_day_cutoff" ]; then
                echo "It's the last Thursday of the month"
                echo "bool=true" >> "${GITHUB_OUTPUT}"
            else
                echo "It's another Thursday of the month"
                echo "bool=false" >> "${GITHUB_OUTPUT}"
            fi
          fi
  reminder:
    name: Reminder
    runs-on: ubuntu-22.04
    needs: [ determine-date ]
    if: ${{ needs.determine-date.outputs.should_run == 'true' }}
    steps:
      - name: Get Date
        id: date
        run: |
          today=$(date +'%m-%d')
          window_close_date=$(date -d "+5 days" +'%m-%d')

          echo "today=$today" >> "${GITHUB_OUTPUT}"
          echo "window_close_date=$window_close_date" >> "${GITHUB_OUTPUT}"

      - name: Checkout
        uses: actions/checkout@v3
        with:
          token: ${{ secrets.CF_BOT_GITHUB_TOKEN }}
          ref: develop
          fetch-depth: 0

      - name: Get Latest Version
        id: latest-version
        run: |
          echo "val=$(git describe --abbrev=0 --tag)" >> "${GITHUB_OUTPUT}"

      - name: PHP specific task
        id: php-specific
        if: github.repository == 'cloudfoundry/php-buildpack'
        run: |
          echo 'task=* Bump PHP modules. See [doc](https://github.com/cloudfoundry/buildpacks-ci/tree/master/scripts/php-modules#pre-buildpack-release-task)' >> "${GITHUB_OUTPUT}"
          echo 'title=Bump PHP Modules and ' >> "${GITHUB_OUTPUT}"

      - name: File Issue
        id: file-issue
        uses: paketo-buildpacks/github-config/actions/issue/file@main
        with:
          token: ${{ secrets.CF_BOT_GITHUB_TOKEN }}
          repo: ${{ github.repository }}
          issue_title: "${{ steps.php-specific.outputs.title }}Release: ${{ github.event.repository.name }} (${{ steps.date.outputs.today }})"
          issue_body: |
            Release reminder for ${{ github.event.repository.name }}

            The ideal release date window for this buildpack starts on: ${{ steps.date.outputs.today }} and ends on ${{ steps.date.outputs.window_close_date }}.

            ${{ steps.php-specific.outputs.task }}
            * See [diff from latest version]("https://github.com/${{ github.repository }}/compare/${{ steps.latest-version.outputs.val }}..develop") and validate if a release is required.
            * Make sure the latest commit on `develop` has passed tests on the [CI](https://buildpacks.ci.cf-app.com/teams/main/pipelines/${{ github.event.repository.name }})
            * Refer [release instructions](https://github.com/pivotal-cf/tanzu-buildpacks/wiki/Releasing-CF-Buildpacks). (private link)

      - name: Add issue to project
        id: issue-to-proj
        uses: paketo-buildpacks/github-config/actions/issue/add-to-project@main
        with:
          # CF buildpacks project - https://github.com/orgs/cloudfoundry/projects/37
          project-org: cloudfoundry
          project-num: 37
          field-name: Workstream
          option-name: Release Train
          issue-node-id: ${{ steps.file-issue.outputs.node-id }}
          token: ${{ secrets.CF_BOT_GITHUB_TOKEN }}