update-cow-dependencies.yaml

name: Update CoW Dependencies

on:
  workflow_dispatch:
  push:
  schedule:
    # At 00:00 on Wednesday
    - cron: "0 0 * * 3"

jobs:
  update-dependencies:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout main branch
        uses: actions/checkout@v2
        with:
          ref: main
          fetch-depth: 0

      - name: Get latest release tag from CoW protocol services
        id: latest-tag
        run: |
          TAG=$(curl -s https://api.github.com/repos/cowprotocol/services/releases/latest | jq -r '.tag_name')
          echo "TAG=$TAG" >> $GITHUB_ENV

      - name: Create branch
        run: |
          git checkout -b update-cow-dependencies/${{ env.TAG }}

      - name: Update Cargo.toml
        run: |
          sed -i '/git = "https:\/\/github.com\/cowprotocol\/services.git"/!b; s/tag = "[^"]*"/tag = "${{ env.TAG }}"/g' ./Cargo.toml

      - name: Check for changes
        run: |
          git diff --exit-code || echo "CHANGES_DETECTED=true" >> $GITHUB_ENV

      - name: No changes detected
        if: env.CHANGES_DETECTED != 'true'
        run: echo "No updates necessary. Dependencies are already up-to-date."

      - name: Identify and update specific CoW dependencies in Cargo.lock
        if: env.CHANGES_DETECTED != 'true'
        run: |
          PACKAGES=$(grep -oP 'package = "\K[^"]*' <(grep -B1 'git = "https:\/\/github.com\/cowprotocol\/services.git"' Cargo.toml))
          echo "Identified packages: $PACKAGES"
          for package in $PACKAGES; do
            echo "Updating package: $package"
            cargo update -p $package
          done

      - name: Commit changes
        if: env.CHANGES_DETECTED == 'true'
        id: commit
        run: |
          git config --global user.name 'Your Name'
          git config --global user.email 'your-email@example.com'
          git add Cargo.toml Cargo.lock
          git commit -m "Update CoW dependencies to ${{ env.TAG }}"
          git push --set-upstream origin update-cow-dependencies/${{ env.TAG }}
          echo "branch=$(git rev-parse --abbrev-ref HEAD)" >> $GITHUB_OUTPUT
          echo "pr_body=Updated CoW dependencies to ${{ env.TAG }}" >> $GITHUB_OUTPUT

      - name: Create Pull Request
        if: env.CHANGES_DETECTED == 'true'
        uses: repo-sync/pull-request@v2
        with:
          source_branch: ${{ steps.commit.outputs.branch }}
          destination_branch: "main"
          github_token: ${{ secrets.GITHUB_TOKEN }}
          pr_title: "Update CoW dependencies to ${{ env.TAG }}"
          pr_body: "${{ steps.commit.outputs.pr_body }}"