feat(l1): properly format client version

crates/common/Cargo.toml

@@ -2,6 +2,7 @@
 name = "ethrex-common"
 version = "0.1.0"
 edition = "2021"
+build = "build.rs"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
@@ -37,3 +38,6 @@ c-kzg = ["dep:c-kzg"]
 
 [lib]
 path = "./common.rs"
+
+[build-dependencies]
+vergen = { version = "9.0.0", features = ["rustc"] }    

crates/common/build.rs

@@ -0,0 +1,9 @@
+use std::error::Error;
+use vergen::*;
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let rustc = RustcBuilder::all_rustc()?;
+
+    Emitter::default().add_instructions(&rustc)?.emit()?;
+    Ok(())
+}

crates/common/constants.rs

@@ -5,3 +5,9 @@ pub const GAS_PER_BLOB: u64 = 1 << 17;
 
 // Minimum base fee per blob
 pub const MIN_BASE_FEE_PER_BLOB_GAS: u64 = 1;
+
+pub const ETHREX_PKG_NAME: &str = env!("CARGO_PKG_NAME");
+pub const ETHREX_PKG_VERSION: &str = env!("CARGO_PKG_VERSION");
+pub const ETHREX_COMMIT_HASH: &str = env!("VERGEN_RUSTC_COMMIT_HASH");
+pub const ETHREX_BUILD_OS: &str = env!("VERGEN_RUSTC_HOST_TRIPLE");
+pub const ETHREX_RUSTC_VERSION: &str = env!("VERGEN_RUSTC_SEMVER");

crates/networking/p2p/rlpx/p2p.rs

@@ -1,11 +1,13 @@
 use bytes::BufMut;
+use ethrex_common::constants;
 use ethrex_common::H512;
 use ethrex_rlp::{
     decode::RLPDecode,
     encode::RLPEncode,
     error::{RLPDecodeError, RLPEncodeError},
     structs::{Decoder, Encoder},
 };
+
 use k256::PublicKey;
 
 use crate::rlpx::utils::{id2pubkey, snappy_decompress};
@@ -63,9 +65,17 @@ impl HelloMessage {
 
 impl RLPxMessage for HelloMessage {
     fn encode(&self, mut buf: &mut dyn BufMut) -> Result<(), RLPEncodeError> {
+        let client_id = format!(
+            "{}/v{}-develop-{}/{}/rustc-v{}",
+            constants::ETHREX_PKG_NAME,
+            constants::ETHREX_PKG_VERSION,
+            &constants::ETHREX_COMMIT_HASH[0..6],
+            constants::ETHREX_BUILD_OS,
+            constants::ETHREX_RUSTC_VERSION
+        );
         Encoder::new(&mut buf)
             .encode_field(&5_u8) // protocolVersion
-            .encode_field(&"Ethrex/0.1.0") // clientId
+            .encode_field(&client_id) // clientId
             .encode_field(&self.capabilities) // capabilities
             .encode_field(&0u8) // listenPort (ignored)
             .encode_field(&pubkey2id(&self.node_id)) // nodeKey

crates/networking/rpc/web3/mod.rs

@@ -2,7 +2,15 @@ use ethrex_storage::Store;
 use serde_json::Value;
 
 use crate::utils::{RpcErr, RpcRequest};
+use ethrex_common::constants;
 
 pub fn client_version(_req: &RpcRequest, _store: Store) -> Result<Value, RpcErr> {
-    Ok(Value::String("[email protected]".to_owned()))
+    Ok(Value::String(format!(
+        "{}/v{}-develop-{}/{}/rustc-v{}",
+        constants::ETHREX_PKG_NAME,
+        constants::ETHREX_PKG_VERSION,
+        &constants::ETHREX_COMMIT_HASH[0..6],
+        constants::ETHREX_BUILD_OS,
+        constants::ETHREX_RUSTC_VERSION
+    )))
 }