WIP of Fossil to Cairo 1

References

• Fossil cairo 0: https://github.com/OilerNetwork/fossil_cairo0/tree/master
• Some utils libraries that can be reused after refacto to latest cairo updates: https://github.com/HerodotusDev/cairo-lib

The repo structure and files organisation will be reviewed once all the components will be implemented

Testing

1. Start Anvil in a new terminal with the command anvil.

2. Install dependencies: requires katana 0.7.0-alpha.4

   cd ethereum
   forge install

3. Build the project and set up environment variables:

   cd starknet
   scarb build
   source katana/katana.env

4. I a New Terminal Start the Katana StarkNet node:

   katana --messaging anvil.messaging.json --disable-fee 

5. In a New Terminal Declare the Cairo contracts:

   cd starknet
   katana/declare.sh

6. Deploy the Cairo contracts:

   katana/deploy.sh

7. Initialize the deployed contracts:

   source katana/initialize_contracts.sh 

8. Set up local Ethereum testing:

   cd ../ethereum
   cp anvil.env .env
   source .env
   forge script script/LocalTesting.s.sol:LocalSetup --broadcast --rpc-url ${ETH_RPC_URL} 

9. Send a message:

forge script script/SendMessage.s.sol:Value --broadcast --rpc-url ${ETH_RPC_URL}