check-zksolc-versions.yml

name: Check zksolc-bin Version
on:
  schedule:
    - cron: '0 0 * * *' # Runs at midnight every day
  workflow_dispatch: # Allows for manual triggering
permissions:
  contents: write
  pull-requests: write
jobs:
  check-zksolc-version:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Get latest zksolc-bin version
        id: get_latest_version
        run: |
          ZKSOLC_VERSION=$(curl -s https://api.github.com/repos/matter-labs/zksolc-bin/releases/latest | jq -r '.tag_name')
          echo "ZKSOLC_VERSION=${ZKSOLC_VERSION}" >> $GITHUB_ENV

      - name: Load previous zksolc-bin version
        id: load_previous_version
        run: |
          if [ -f .zksolc-version ]; then
            PREVIOUS_VERSION=$(cat .zksolc-version)
          else
            PREVIOUS_VERSION="none"
          fi
          echo "PREVIOUS_VERSION=${PREVIOUS_VERSION}" >> $GITHUB_ENV

      - name: Compare versions
        id: compare_versions
        run: |
          if [ "$ZKSOLC_VERSION" != "$PREVIOUS_VERSION" ]; then
            echo "New version found: $ZKSOLC_VERSION"
            echo "update_required=true" >> $GITHUB_ENV
          else
            echo "No update required"
            echo "update_required=false" >> $GITHUB_ENV
          fi

      - name: Check if PR already exists
        id: check_pr_exists
        if: env.update_required == 'true'
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          PR_URL=$(gh pr list --state=open --head update-zksolc-${{ env.ZKSOLC_VERSION }} --json url --jq '.[0].url')
          if [ -n "$PR_URL" ]; then
            echo "PR already exists: $PR_URL"
            echo "pr_exists=true" >> $GITHUB_ENV
            echo "PR_URL=${PR_URL}" >> $GITHUB_ENV
          else
            echo "No PR exists."
            echo "pr_exists=false" >> $GITHUB_ENV
          fi

      - name: Check if branch already exists
        id: check_branch_exists
        if: env.update_required == 'true' && env.pr_exists == 'false'
        run: |
          BRANCH_EXIST=$(git ls-remote --heads origin update-zksolc-${{ env.ZKSOLC_VERSION }} | wc -l)
          if [ "$BRANCH_EXIST" -gt 0 ]; then
            echo "Branch already exists."
            echo "branch_exists=true" >> $GITHUB_ENV
          else
            echo "Branch does not exist."
            echo "branch_exists=false" >> $GITHUB_ENV
          fi

      - name: Create a new branch for the update
        if: env.update_required == 'true' && env.pr_exists == 'false' && env.branch_exists == 'false'
        run: |
          git checkout -b update-zksolc-${{ env.ZKSOLC_VERSION }}
          echo "${{ env.ZKSOLC_VERSION }}" > .zksolc-version

      - name: Commit changes
        if: env.update_required == 'true' && env.pr_exists == 'false' && env.branch_exists == 'false'
        run: |
          git config --local user.email "action@github.com"
          git config --local user.name "GitHub Action"
          git add .zksolc-version
          git commit -m "Update zksolc-bin to ${{ env.ZKSOLC_VERSION }}"

      - name: Push changes to new branch
        if: env.update_required == 'true' && env.pr_exists == 'false' && env.branch_exists == 'false'
        run: |
          git push origin update-zksolc-${{ env.ZKSOLC_VERSION }}

      - name: Create or Update Pull Request
        if: env.update_required == 'true'
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          PR_BODY="A new version of zksolc-bin has been released: **${{ env.ZKSOLC_VERSION }}**. This PR updates the project with the latest version."
          if [ "${{ env.pr_exists }}" == "true" ]; then
            gh pr edit "${{ env.PR_URL }}" --body "$PR_BODY"
            echo "Updated existing PR: ${{ env.PR_URL }}"
          else
            PR_URL=$(gh pr create \
              --head update-zksolc-${{ env.ZKSOLC_VERSION }} \
              --base develop \
              --title "Update zksolc-bin to version ${{ env.ZKSOLC_VERSION }}" \
              --body "$PR_BODY" \
              --label "zksolc,update" \
              --assignee "varex83,stranger80")
            echo "Created new PR: $PR_URL"
          fi
          echo "PR_URL=${PR_URL}" >> $GITHUB_ENV