feat(cmd/mitosisd): add Ethereum genesis file generation

[riemannulus]

• Introduced a new file eth_genesis.go to handle Ethereum genesis file creation.
• Implemented GenerateEthereumGenesis function to generate a genesis file based on Cosmos chain ID.
• Updated printInfo struct to include Ethereum genesis path and chain ID.
• Modified InitCmd to generate the Ethereum genesis file during initialization.

This addition enhances the integration of Ethereum functionalities within the Mitosis chain, allowing for seamless genesis file generation.

[codecov]

Codecov Report

❌ Patch coverage is 68.30986% with 45 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
cmd/mitosisd/cmd/init.go	7.69%	36 Missing ⚠️
cmd/mitosisd/cmd/eth_genesis.go	91.26%	5 Missing and 4 partials ⚠️

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[Copilot]

Pull Request Overview

This PR introduces Ethereum genesis file generation functionality to the Mitosis daemon initialization process. The changes enable automatic creation of Ethereum genesis files alongside Cosmos genesis files during chain initialization.

• Adds Ethereum genesis file generation with chain-specific configurations
• Updates initialization command to create both Cosmos and Ethereum genesis files
• Includes comprehensive test coverage for the new functionality

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
cmd/mitosisd/cmd/eth_genesis.go	Implements Ethereum genesis file generation with chain config and funded accounts
cmd/mitosisd/cmd/init.go	Updates initialization process to generate Ethereum genesis and display path info
cmd/mitosisd/cmd/eth_genesis_test.go	Comprehensive tests for Ethereum genesis generation functionality
cmd/mitosisd/cmd/init_test.go	Integration tests for updated initialization process with Ethereum support
Makefile	Updates linter scope to include specific directories
.golangci.yml	Excludes temporary files directory from linting

Comments suppressed due to low confidence (1)

cmd/mitosisd/cmd/init.go:51

• The function name 'newPrintInfoWithEth' is inconsistent with Go naming conventions. Consider renaming to 'newPrintInfo' since this appears to be replacing the original function, or use a more descriptive name like 'newPrintInfoWithEthGenesis'.

func newPrintInfoWithEth(moniker, chainID, nodeID, genTxsDir string, appMessage json.RawMessage, ethGenesisPath string, ethChainID string) printInfo {

[riemannulus]

Usage

> mitosisd init test-node \
  --chain-id test-chain-123 \
  --eth-chain-id 124859 \
  --eth-gas-limit 25000000 \
  --eth-funded-address 0x1234567890123456789012345678901234567890 \
  --eth-initial-balance 500000000000000000000000000 \
  --home /tmp/test-mitosis

Output

> /tmp/test-mitosis/config/eth_genesis.json | jq .

{
  "config": {
    "chainId": 124859,
    "homesteadBlock": 0,
    "eip150Block": 0,
    "eip155Block": 0,
    "eip158Block": 0,
    "byzantiumBlock": 0,
    "constantinopleBlock": 0,
    "petersburgBlock": 0,
    "istanbulBlock": 0,
    "berlinBlock": 0,
    "londonBlock": 0,
    "terminalTotalDifficulty": 0,
    "shanghaiTime": 0,
    "cancunTime": 0,
    "pragueTime": 0,
    "blobSchedule": {
      "cancun": {
        "target": 3,
        "max": 6,
        "baseFeeUpdateFraction": 3338477
      },
      "prague": {
        "target": 6,
        "max": 9,
        "baseFeeUpdateFraction": 5007716
      }
    }
  },
  "nonce": "0",
  "timestamp": "0",
  "extraData": "0x",
  "gasLimit": "25000000",
  "difficulty": "0",
  "mixHash": "",
  "coinbase": "",
  "alloc": {
    "0x1234567890123456789012345678901234567890": {
      "balance": "500000000000000000000000000"
    }
  }
}