op-node: cleanup readme (#10679)

* op-node: cleanup readme

The readme hasn't been updated in some time, this updates the readme
with the latest information as a lot of the information has been
deprecated. This will make it more intuitive for how to use the `op-node`
to generate the L2 genesis for a network.

Also adds a simple `doctoc` recipe to the `Makefile` as other `README`
files in the repo do the same thing.

* readme: update

op-node/Makefile

@@ -52,8 +52,12 @@ fuzz:
 generate-mocks:
 	go generate ./...
 
+readme:
+	doctoc README.md
+
 .PHONY: \
 	op-node \
 	clean \
 	test \
-	fuzz
+	fuzz \
+	readme

op-node/README.md

+<!-- START doctoc generated TOC please keep comment here to allow auto update -->
+<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
+**Table of Contents**  *generated with [DocToc](https://github.com/thlorenz/doctoc)*
+
+- [op-node](#op-node)
+  - [Compiling](#compiling)
+  - [Testing](#testing)
+  - [Running](#running)
+  - [L2 Genesis Generation](#l2-genesis-generation)
+  - [L1 Devnet Genesis Generation](#l1-devnet-genesis-generation)
+
+<!-- END doctoc generated TOC please keep comment here to allow auto update -->
+
 # op-node
 
 This is the reference implementation of the [rollup-node spec](https://github.com/ethereum-optimism/specs/blob/main/specs/protocol/rollup-node.md).
+It can be thought of like the consensus layer client of an OP Stack chain where it must run with an OP Stack execution layer client
+like [op-geth](https://github.com/ethereum-optimism/op-geth).
 
 ## Compiling
 
 Compile a binary:
+
 ```shell
-cd op-node
-go build -o bin/op-node ./cmd
+make op-node
 ```
 
 ## Testing
 
 Run op-node unit tests:
-```shell
-cd op-node
-go test ./...
-```
 
-Run end-to-end tests:
 ```shell
-cd op-e2e
-go test ./...
+make test
 ```
 
 ## Running
 
-Options can be reviewed with:
+Configuration options can be reviewed with:
 
 ```shell
 ./bin/op-node --help
 ```
 
+[eth-json-rpc-spec]: https://ethereum.github.io/execution-apis/api-documentation
+
 To start syncing the rollup:
 
-Connect to at least one L1 RPC and L2 execution engine:
+Connect to one L1 Execution Client that supports the [Ethereum JSON-RPC spec][eth-json-rpc-spec],
+an L1 Consensus Client that supports the [Beacon Node API](https://ethereum.github.io/beacon-APIs) and
+an OP Stack based Execution Client that supports the [Ethereum JSON-RPC spec][eth-json-rpc-spec]:
 
-- L1: use any L1 node / RPC (websocket connection path may differ)
-- L2: run the Optimism fork of geth: [`op-geth`](https://github.com/ethereum-optimism/op-geth)
+- L1: use any L1 client, RPC, websocket, or IPC (connection config may differ)
+- L2: use any OP Stack Execution Client like [`op-geth`](https://github.com/ethereum-optimism/op-geth)
+
+Note that websockets or IPC preferred for event notifications to improve sync, http RPC works with adaptive polling.
 
 ```shell
-# websockets or IPC preferred for event notifications to improve sync, http RPC works with adaptive polling.
-op \
-  --l1=ws://localhost:8546 --l2=ws//localhost:9001 \
+./bin/op-node \
+  --l1=ws://localhost:8546 \
+  --l1.beacon=http://localhost:4000 \
+  --l2=ws://localhost:9001 \
   --rollup.config=./path-to-network-config/rollup.json \
   --rpc.addr=127.0.0.1 \
   --rpc.port=7000
 ```
 
-## Devnet Genesis Generation
+## L2 Genesis Generation
 
 The `op-node` can generate geth compatible `genesis.json` files. These files
 can be used with `geth init` to initialize the `StateDB` with accounts, storage,
 code and balances. The L2 state must be initialized with predeploy contracts
 that exist in the state and act as system level contracts. The `op-node` can
 generate a genesis file with these predeploys configured correctly given
-hardhat compilation artifacts, hardhat deployment artifacts, a L1 RPC URL
-and a deployment config.
+an L1 RPC URL, a deploy config, L2 genesis allocs and a L1 deployments artifact.
+
+The deploy config contains all of the config required to deploy the
+system. Examples can be found in `packages/contracts-bedrock/deploy-config`. Each
+deploy config file is a JSON file. The L2 allocs can be generated using a forge script
+in the `contracts-bedrock` package and the L1 deployments are a JSON file that is the
+output of doing a L1 contracts deployment.
 
-The hardhat compilation artifacts are produced by `hardhat compile`. The native
-hardhat compiler toolchain produces them by default and the
-`@foundry-rs/hardhat` plugin can also produce them when using the foundry
-compiler toolchain. They can usually be found in an `artifacts` directory.
+Example usage:
 
-The hardhat deployment artifacts are produced by running `hardhat deploy`. These
-exist to make it easy to track deployments of smart contract systems over time.
-They can usually be found in a `deployments` directory.
+```bash
+$ ./bin/op-node genesis l2 \
+  --l1-rpc $ETH_RPC_URL \
+  --deploy-config <PATH_TO_MY_DEPLOY_CONFIG> \
+  --l2-allocs <PATH_TO_L2_ALLOCS> \
+  --l1-deployments <PATH_TO_L1_DEPLOY_ARTIFACT> \
+  --outfile.l2 <PATH_TO_WRITE_L2_GENESIS> \
+  --outfile.rollup <PATH_TO_WRITE_OP_NODE_CONFIG>
+```
 
-The deployment config contains all of the information required to deploy the
-system. It can be found in `packages/contracts-bedrock/deploy-config`. Each
-deploy config file can be JSON or TypeScript, although only JSON files are
-supported by the `op-node`. The network name must match the name of the file
-in the deploy config directory.
+## L1 Devnet Genesis Generation
 
-Example usage:
+It is also possible to generate a devnet L1 `genesis.json` file. The L1 allocs can
+be generated with the foundry L1 contracts deployment script if the extra parameter
+`--sig 'runWithStateDump()` is added to the deployment command.
 
 ```bash
-$ op-node genesis devnet-l2 \
-   --artifacts $CONTRACTS_BEDROCK/artifacts \
-   --network $NETWORK \
-   --deployments $CONTRACTS_BEDROCK/deployments \
+$ ./bin/op-node genesis l1 \
    --deploy-config $CONTRACTS_BEDROCK/deploy-config \
-   --rpc-url http://localhost:8545 \
+   --l1-deployments <PATH_TO_L1_DEPLOY_ARTIFACT> \
+   --l1-allocs <PATH_TO_L1_ALLOCS>
 ```