update-wp-versions.yml

name: Update WordPress versions

on:
  schedule:
    - cron: '0 9 * * *'
  workflow_dispatch:

env:
  MAGIC_BRANCH_NAME: auto-update/wordpress-versions

permissions:
  contents: read

jobs:
  preflight:
    name: Preflight check
    runs-on: ubuntu-latest
    outputs:
      branch-exists: ${{ steps.check-branch.outputs.exists }}
    steps:
      - name: Check out source code
        uses: actions/checkout@v4

      - name: Check if 'update/wordpress-versions' branch exists
        id: check-branch
        run: |
          if git ls-remote --exit-code --heads origin ${MAGIC_BRANCH_NAME}; then
            echo "exists=true" >> $GITHUB_OUTPUT
            echo ::warning::"Branch '${MAGIC_BRANCH_NAME}' already exists, exiting."
          else
            echo "exists=false" >> $GITHUB_OUTPUT
          fi

  update:
    name: Update WordPress versions
    runs-on: ubuntu-latest
    needs: preflight
    if: ${{ needs.preflight.outputs.branch-exists == 'false' }}
    permissions:
      contents: write
      pull-requests: write
    steps:
      - name: Check out source code
        uses: actions/checkout@v4
        with:
          token: ${{ secrets.WPCOM_VIP_BOT_TOKEN }}

      - name: Install dependencies
        run: |
          sudo apt-get -qq update
          sudo apt-get install -y moreutils

      - name: Get WordPress versions we want
        id: wanted
        run: |
          LATEST=$(wget https://api.wordpress.org/core/version-check/1.7/ -q -O - | jq -r '[.offers[].version] | unique | map(select( . >= "6.0")) | sort | reverse | .[]')
          echo latest=${LATEST} >> $GITHUB_OUTPUT
          TAGS=
          for v in ${LATEST}; do
            TAGS="${TAGS} $(echo ${v} | awk -F. '{print $1"."$2}')"
          done
          TAGS=${TAGS# }
          echo "tags=${TAGS}" >> $GITHUB_OUTPUT

      - name: Remove old WordPress versions from versions.json
        run: |
          for tag in ${TAGS}; do
            ./del-version.sh "${tag}"
          done
        env:
          TAGS: ${{ steps.wanted.outputs.tags }}
        working-directory: wordpress

      - name: Add new WordPress versions to versions.json
        run: |
          for version in ${LATEST}; do
            tag=$(echo ${version} | awk -F. '{print $1"."$2}')
            ./add-version.sh "${tag}" "${version}" true true
          done
        env:
          LATEST: ${{ steps.wanted.outputs.latest }}
        working-directory: wordpress

      - name: Commit the changes and create a PR
        run: |
          if [ "$(git diff --ignore-space-at-eol wordpress/ | wc -l)" -gt "0" ]; then
            git checkout -b ${MAGIC_BRANCH_NAME}
            git config user.name "WordPress VIP Bot"
            git config user.email no-reply@automattic.com
            git add wordpress
            git commit -m "Add WordPress ${LATEST}."
            git push -u origin "${MAGIC_BRANCH_NAME}"
            gh pr create --base master --head "${MAGIC_BRANCH_NAME}" --title "Update versions.json" --body "Add WordPress ${LATEST}."
          fi
        env:
          LATEST: ${{ steps.wanted.outputs.latest }}
          GH_TOKEN: ${{ secrets.WPCOM_VIP_BOT_TOKEN }}