fix(op-reth): --chain help message (#10661)

bin/reth/src/cli/mod.rs

@@ -1,7 +1,7 @@
 //! CLI definition and entrypoint to executable
 
 use crate::{
-    args::{utils::chain_help, LogArgs},
+    args::LogArgs,
     commands::debug_cmd,
     version::{LONG_VERSION, SHORT_VERSION},
 };
@@ -45,7 +45,7 @@ pub struct Cli<C: ChainSpecParser = DefaultChainSpecParser, Ext: clap::Args + fm
     #[arg(
         long,
         value_name = "CHAIN_OR_PATH",
-        long_help = chain_help(),
+        long_help = C::help_messge(),
         default_value = C::SUPPORTED_CHAINS[0],
         value_parser = C::parser(),
         global = true,

crates/cli/cli/src/chainspec.rs

@@ -55,4 +55,9 @@ pub trait ChainSpecParser: Clone + Send + Sync + 'static {
     fn parser() -> impl TypedValueParser<Value = Arc<Self::ChainSpec>> {
         Parser(std::marker::PhantomData::<Self>)
     }
+
+    /// Produces a help message for the chain spec argument.
+    fn help_messge() -> String {
+        format!("The chain this node is running.\nPossible values are either a built-in chain or the path to a chain specification file.\n\nBuilt-in chains:\n    {}", Self::SUPPORTED_CHAINS.join(", "))
+    }
 }

crates/cli/commands/src/common.rs

@@ -10,7 +10,7 @@ use reth_db_common::init::init_genesis;
 use reth_downloaders::{bodies::noop::NoopBodiesDownloader, headers::noop::NoopHeaderDownloader};
 use reth_evm::noop::NoopBlockExecutorProvider;
 use reth_node_core::{
-    args::{utils::chain_help, DatabaseArgs, DatadirArgs},
+    args::{DatabaseArgs, DatadirArgs},
     dirs::{ChainPath, DataDirPath},
 };
 use reth_primitives::B256;
@@ -38,7 +38,7 @@ pub struct EnvironmentArgs<C: ChainSpecParser> {
     #[arg(
         long,
         value_name = "CHAIN_OR_PATH",
-        long_help = chain_help(),
+        long_help = C::help_messge(),
         default_value = C::SUPPORTED_CHAINS[0],
         value_parser = C::parser()
     )]

crates/cli/commands/src/dump_genesis.rs

@@ -4,7 +4,6 @@ use std::sync::Arc;
 use clap::Parser;
 use reth_chainspec::ChainSpec;
 use reth_cli::chainspec::ChainSpecParser;
-use reth_node_core::args::utils::chain_help;
 
 /// Dumps genesis block JSON configuration to stdout
 #[derive(Debug, Parser)]
@@ -15,7 +14,7 @@ pub struct DumpGenesisCommand<C: ChainSpecParser> {
     #[arg(
         long,
         value_name = "CHAIN_OR_PATH",
-        long_help = chain_help(),
+        long_help = C::help_messge(),
         default_value = C::SUPPORTED_CHAINS[0],
         value_parser = C::parser()
     )]

crates/cli/commands/src/node.rs

@@ -9,9 +9,8 @@ use reth_db::{init_db, DatabaseEnv};
 use reth_node_builder::{NodeBuilder, WithLaunchContext};
 use reth_node_core::{
     args::{
-        utils::{chain_help, DefaultChainSpecParser},
+        utils::DefaultChainSpecParser, DatabaseArgs, DatadirArgs, DebugArgs, DevArgs, NetworkArgs,
-        DatabaseArgs, DatadirArgs, DebugArgs, DevArgs, NetworkArgs, PayloadBuilderArgs,
+        PayloadBuilderArgs, PruningArgs, RpcServerArgs, TxPoolArgs,
-        PruningArgs, RpcServerArgs, TxPoolArgs,
     },
     node_config::NodeConfig,
     version,
@@ -35,7 +34,7 @@ pub struct NodeCommand<
     #[arg(
         long,
         value_name = "CHAIN_OR_PATH",
-        long_help = chain_help(),
+        long_help = C::help_messge(),
         default_value = C::SUPPORTED_CHAINS[0],
         default_value_if("dev", "true", "dev"),
         value_parser = C::parser(),

crates/cli/commands/src/p2p/mod.rs

@@ -11,7 +11,7 @@ use reth_config::Config;
 use reth_network::{BlockDownloaderProvider, NetworkConfigBuilder};
 use reth_network_p2p::bodies::client::BodiesClient;
 use reth_node_core::{
-    args::{utils::chain_help, DatabaseArgs, DatadirArgs, NetworkArgs},
+    args::{DatabaseArgs, DatadirArgs, NetworkArgs},
     utils::get_single_header,
 };
 use reth_primitives::BlockHashOrNumber;
@@ -31,7 +31,7 @@ pub struct Command<C: ChainSpecParser> {
     #[arg(
         long,
         value_name = "CHAIN_OR_PATH",
-        long_help = chain_help(),
+        long_help = C::help_messge(),
         default_value = C::SUPPORTED_CHAINS[0],
         value_parser = C::parser()
     )]

crates/node/core/src/args/utils.rs

@@ -19,11 +19,6 @@ pub const SUPPORTED_CHAINS: &[&str] =
 /// Chains supported by reth. First value should be used as the default.
 pub const SUPPORTED_CHAINS: &[&str] = &["mainnet", "sepolia", "holesky", "dev"];
 
-/// The help info for the --chain flag
-pub fn chain_help() -> String {
-    format!("The chain this node is running.\nPossible values are either a built-in chain or the path to a chain specification file.\n\nBuilt-in chains:\n    {}", SUPPORTED_CHAINS.join(", "))
-}
-
 /// Clap value parser for [`ChainSpec`]s.
 ///
 /// The value parser matches either a known chain, the path

crates/optimism/cli/src/lib.rs

@@ -43,7 +43,7 @@ use reth_db::DatabaseEnv;
 use reth_evm_optimism::OpExecutorProvider;
 use reth_node_builder::{NodeBuilder, WithLaunchContext};
 use reth_node_core::{
-    args::{utils::chain_help, LogArgs},
+    args::LogArgs,
     version::{LONG_VERSION, SHORT_VERSION},
 };
 use reth_tracing::FileWorkerGuard;
@@ -65,7 +65,7 @@ pub struct Cli<Ext: clap::Args + fmt::Debug = NoArgs> {
     #[arg(
         long,
         value_name = "CHAIN_OR_PATH",
-        long_help = chain_help(),
+        long_help = OpChainSpecParser::help_messge(),
         default_value = OpChainSpecParser::SUPPORTED_CHAINS[0],
         value_parser = OpChainSpecParser::parser(),
         global = true,