gh-release-checker.yml

---
name: Check & Pull Latest Upstream GitHub Release

on:
  schedule:
    - cron: "0 0 * * 1-5"
  workflow_dispatch: {}

env:
  remote_repository: "Azure/bicep-lz-vending"
  branch_name: "pull-latest-upstream-release"
  pr_title: "New Upstream GitHub Release Available"
  pr_body: "This is an automated 'pull_request' containing the latest release from the upstream repo.\nPlease review the 'files changed' tab to review changes."

jobs:
  get-latest-release:
    name: Check & Pull Latest Upstream GitHub Release
    if: ${{ github.repository != 'Azure/bicep-lz-vending' }}
    runs-on: ubuntu-latest
    steps:
      - name: Local repository checkout
        uses: actions/checkout@v4
        with:
          path: ${{ github.repository }}
          fetch-depth: 0

      - name: Configure local git
        run: |
          git config user.name github-actions
          git config user.email action@github.com
        working-directory: ${{ github.repository }}

      - name: Create and checkout branch
        run: |
          BRANCH_URL="repos/${{ github.repository }}/branches"
          JQ_FILTER=".[] | select(.name == \"${{ env.branch_name }}\").name"
          CHECK_BRANCH_ORIGIN=$(gh api $BRANCH_URL | jq -r "$JQ_FILTER")
          if [ -z "$CHECK_BRANCH_ORIGIN" ]
          then
            echo "Checkout local branch (create new, no origin)..."
            git checkout -b ${{ env.branch_name }}
          else
            echo "Checkout local branch (create new, track from origin)..."
            git checkout -b ${{ env.branch_name }} --track origin/${{ env.branch_name }}
          fi
        working-directory: ${{ github.repository }}
        env:
          GITHUB_TOKEN: ${{ secrets.github_token }}

      - name: Check for upstream release and pull if available
        shell: pwsh
        run: |
          $keepThese = @("version.json", "src", "main.bicep", "main.bicep.parameters.md", "README.md")
          .github/scripts/Invoke-GitHubReleaseFetcher.ps1 -githubRepoUrl "https://github.com/${{ env.remote_repository }}" -directoryAndFilesToKeep $keepThese -syncAllReleases:$false
        working-directory: ${{ github.repository }}

      - name: Check for changes
        id: git_status
        run: |
          CHECK_GIT_STATUS=($(git status -s))
          git status -s
          echo "changes=${#CHECK_GIT_STATUS[@]}" >> $GITHUB_OUTPUT
        working-directory: ${{ github.repository }}

      - name: Add files, commit and push
        if: steps.git_status.outputs.changes > 0
        run: |
          echo "Pushing changes to origin..."
          git add releases
          git add releases/*
          git config --global core.autocrlf input
          git commit -m '${{ env.pr_title }}'
          git push origin ${{ env.branch_name }}
        working-directory: ${{ github.repository }}

      - name: Create pull request
        if: steps.git_status.outputs.changes > 0
        run: |
          HEAD_LABEL="${{ github.repository_owner }}:${{ env.branch_name }}"
          BASE_LABEL="${{ github.repository_owner }}:$(echo '${{ github.ref }}' | sed 's:refs/heads/::')"
          PULL_REQUEST_URL="repos/${{ github.repository }}/pulls"
          JQ_FILTER=".[] | select(.head.label == \"$HEAD_LABEL\") | select(.base.label == \"$BASE_LABEL\") | .url"
          CHECK_PULL_REQUEST_URL=$(gh api $PULL_REQUEST_URL | jq -r "$JQ_FILTER")
          if [ -z "$CHECK_PULL_REQUEST_URL" ]
          then
            CHECK_PULL_REQUEST_URL=$(gh pr create \
            --title "${{ env.pr_title }}" \
            --body "${{ env.pr_body }}" \
            --base "${{ github.ref }}" \
            --head "${{ env.branch_name }}")
            echo "Created new PR: $CHECK_PULL_REQUEST_URL"
          else
            echo "Existing PR found: $CHECK_PULL_REQUEST_URL"
          fi
        working-directory: ${{ github.repository }}
        env:
          GITHUB_TOKEN: ${{ secrets.github_token }}