From 9bba37b7a9f979f05a38594bf89e57f52aee294c Mon Sep 17 00:00:00 2001
From: xermicus <bigcyrill@hotmail.com>
Date: Mon, 24 Mar 2025 09:42:51 +0100
Subject: [PATCH] the geth version

Signed-off-by: xermicus <bigcyrill@hotmail.com>
---
 crates/node/src/geth.rs | 21 +++++++++++++++++++++
 crates/node/src/lib.rs  |  3 +++
 2 files changed, 24 insertions(+)

diff --git a/crates/node/src/geth.rs b/crates/node/src/geth.rs
index 4866d29..7000633 100644
--- a/crates/node/src/geth.rs
+++ b/crates/node/src/geth.rs
@@ -207,6 +207,18 @@ impl Node for Instance {
             _ => anyhow::bail!("expected a diff mode trace"),
         }
     }
+
+    fn version(&self) -> anyhow::Result<String> {
+        let output = Command::new(&self.geth)
+            .arg("--version")
+            .stdin(Stdio::null())
+            .stdout(Stdio::piped())
+            .stderr(Stdio::null())
+            .spawn()?
+            .wait_with_output()?
+            .stdout;
+        Ok(String::from_utf8_lossy(&output).into())
+    }
 }
 
 impl Drop for Instance {
@@ -252,4 +264,13 @@ mod tests {
             .spawn(GENESIS_JSON.to_string())
             .unwrap();
     }
+
+    #[test]
+    fn version_works() {
+        let version = Instance::new(&test_config().0).unwrap().version().unwrap();
+        assert!(
+            version.starts_with("geth version"),
+            "expected version string, got: '{version}'"
+        );
+    }
 }
diff --git a/crates/node/src/lib.rs b/crates/node/src/lib.rs
index ca52c04..a98e995 100644
--- a/crates/node/src/lib.rs
+++ b/crates/node/src/lib.rs
@@ -25,4 +25,7 @@ pub trait Node: EthereumNode {
 
     /// Returns the state diff of the transaction hash in the [TransactionReceipt].
     fn state_diff(&self, transaction: TransactionReceipt) -> anyhow::Result<DiffMode>;
+
+    /// Returns the node version.
+    fn version(&self) -> anyhow::Result<String>;
 }