reth_ethereum_cli/
chainspec.rs

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1use reth_chainspec::{ChainSpec, DEV, HOLESKY, MAINNET, SEPOLIA};
2use reth_cli::chainspec::{parse_genesis, ChainSpecParser};
3use std::sync::Arc;
4
5/// Chains supported by reth. First value should be used as the default.
6pub const SUPPORTED_CHAINS: &[&str] = &["mainnet", "sepolia", "holesky", "dev"];
7
8/// Clap value parser for [`ChainSpec`]s.
9///
10/// The value parser matches either a known chain, the path
11/// to a json file, or a json formatted string in-memory. The json needs to be a Genesis struct.
12pub fn chain_value_parser(s: &str) -> eyre::Result<Arc<ChainSpec>, eyre::Error> {
13    Ok(match s {
14        "mainnet" => MAINNET.clone(),
15        "sepolia" => SEPOLIA.clone(),
16        "holesky" => HOLESKY.clone(),
17        "dev" => DEV.clone(),
18        _ => Arc::new(parse_genesis(s)?.into()),
19    })
20}
21
22/// Ethereum chain specification parser.
23#[derive(Debug, Clone, Default)]
24#[non_exhaustive]
25pub struct EthereumChainSpecParser;
26
27impl ChainSpecParser for EthereumChainSpecParser {
28    type ChainSpec = ChainSpec;
29
30    const SUPPORTED_CHAINS: &'static [&'static str] = SUPPORTED_CHAINS;
31
32    fn parse(s: &str) -> eyre::Result<Arc<ChainSpec>> {
33        chain_value_parser(s)
34    }
35}
36
37#[cfg(test)]
38mod tests {
39    use super::*;
40    use reth_chainspec::EthereumHardforks;
41
42    #[test]
43    fn parse_known_chain_spec() {
44        for &chain in EthereumChainSpecParser::SUPPORTED_CHAINS {
45            assert!(<EthereumChainSpecParser as ChainSpecParser>::parse(chain).is_ok());
46        }
47    }
48
49    #[test]
50    fn parse_raw_chainspec_hardforks() {
51        let s = r#"{
52  "parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
53  "uncleHash": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
54  "coinbase": "0x0000000000000000000000000000000000000000",
55  "stateRoot": "0x76f118cb05a8bc558388df9e3b4ad66ae1f17ef656e5308cb8f600717251b509",
56  "transactionsTrie": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
57  "receiptTrie": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
58  "bloom": "0x000...000",
59  "difficulty": "0x00",
60  "number": "0x00",
61  "gasLimit": "0x016345785d8a0000",
62  "gasUsed": "0x00",
63  "timestamp": "0x01",
64  "extraData": "0x00",
65  "mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
66  "nonce": "0x0000000000000000",
67  "baseFeePerGas": "0x07",
68  "withdrawalsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
69  "blobGasUsed": "0x00",
70  "excessBlobGas": "0x00",
71  "parentBeaconBlockRoot": "0x0000000000000000000000000000000000000000000000000000000000000000",
72  "requestsRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
73  "hash": "0xc20e1a771553139cdc77e6c3d5f64a7165d972d327eee9632c9c7d0fe839ded4",
74  "alloc": {},
75  "config": {
76    "ethash": {},
77    "chainId": 1,
78    "homesteadBlock": 0,
79    "daoForkSupport": true,
80    "eip150Block": 0,
81    "eip155Block": 0,
82    "eip158Block": 0,
83    "byzantiumBlock": 0,
84    "constantinopleBlock": 0,
85    "petersburgBlock": 0,
86    "istanbulBlock": 0,
87    "berlinBlock": 0,
88    "londonBlock": 0,
89    "terminalTotalDifficulty": 0,
90    "shanghaiTime": 0,
91    "cancunTime": 0,
92    "pragueTime": 0,
93    "osakaTime": 0
94  }
95}"#;
96
97        let spec = <EthereumChainSpecParser as ChainSpecParser>::parse(s).unwrap();
98        assert!(spec.is_shanghai_active_at_timestamp(0));
99        assert!(spec.is_cancun_active_at_timestamp(0));
100        assert!(spec.is_prague_active_at_timestamp(0));
101        assert!(spec.is_osaka_active_at_timestamp(0));
102    }
103}
reth_ethereum_cli/chainspec.rs

reth_ethereum_cli/
chainspec.rs
