update-chains.yml

name: Update Blockchain Descriptors

on:
  schedule:
    # Run weekly on Monday at 00:00 UTC
    - cron: '0 0 * * 1'
  # Allow manual triggering
  workflow_dispatch:
    inputs:
      specific_chain:
        description: 'Specific chain to update (leave empty for all)'
        required: false
        default: ''

jobs:
  update-chains:
    runs-on: ubuntu-latest
    
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        
      - name: Setup Bun
        uses: oven-sh/setup-bun@v1
        with:
          bun-version: latest
          
      - name: Install dependencies
        run: bun install
      
      - name: Setup metadata directory
        run: mkdir -p .papi/metadata
        
      # Define the chains to update
      - name: Define chains list
        id: chains
        run: |
          if [ -n "${{ github.event.inputs.specific_chain }}" ]; then
            # Use the specific chain if provided in manual trigger
            echo "CHAINS=${{ github.event.inputs.specific_chain }}" >> $GITHUB_ENV
          else
            # Otherwise use the full list of chains
            echo "CHAINS=polkadot kusama westend2  paseo polkadot_asset_hub kusama_asset_hub westend_asset_hub rococo_asset_hub polkadot_bridge_hub kusama_bridge_hub westend_bridge_hub rococo_bridge_hub polkadot_collectives pendulum amplitude hydradx basilisk mangata" >> $GITHUB_ENV
          fi
      
      # Update all chains in the list
      - name: Update chains
        run: |
          # Process each chain
          for chain in $CHAINS; do
            # Convert chain name to descriptor key (kebab-case to camelCase, remove non-alphanumeric)
            descriptor_key=$(echo $chain | sed -r 's/-([a-z])/\U\1/g' | sed 's/[^a-zA-Z0-9]//g')
            
            # Special case for relay chains to map them to common names
            case $chain in
              polkadot)
                descriptor_key="dot"
                ;;
              kusama)
                descriptor_key="ksm"
                ;;
              westend2)
                descriptor_key="wnd"
                ;;              
              paseo)
                descriptor_key="paseo"
                ;;
            esac
            
            echo "Updating chain: $chain with descriptor key: $descriptor_key"
            
            # Run papi add command
            npx papi add $descriptor_key -n $chain --skip-codegen
            
            # Check for errors
            if [ $? -ne 0 ]; then
              echo "Error updating $chain"
              # Continue with other chains even if this one fails
              continue
            fi
            
            echo "Successfully updated $chain"
          done
          
          # Run codegen once at the end to include all chains
          echo "Running final codegen"
          npx papi
          
          # Install the updated descriptors
          bun install

      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v6
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          commit-message: "chore: update blockchain descriptors"
          title: "Update Blockchain Descriptors"
          body: |
            # Blockchain Descriptors Update
            
            This automated PR updates the blockchain descriptors for all supported chains in the Polkadot ecosystem.
            
            ## Updated Chains
            
            ```
            ${{ env.CHAINS }}
            ```
            
            ## What Changed
            
            - Updated chain metadata
            - Updated descriptors with latest type definitions
            - Updated dependencies
            
            > This is an automated PR created by the `update-chains` GitHub Action.
          branch: chore/update-blockchain-descriptors
          base: main
          labels: automation, dependencies
          delete-branch: true