fix: cleanup

Author: nhtyy

.env.example

@@ -1,7 +1,7 @@
 # Example configuration for Sepolia + Celestia Mocha.
 TENDERMINT_RPC_URL=https://rpc.celestia-mocha.com/
 
-# Key for relaying to the contract.
+# Optional: Key for relaying to the contract.
 PRIVATE_KEY=
 
 # Optional: Set if you're using a custom RPC URL.
@@ -14,4 +14,9 @@ LOOP_INTERVAL_MINS=
 # Optional: Set if you're using the KMS relayer.
 SECURE_RELAYER_API_KEY=
 SECURE_RELAYER_ENDPOINT=
-USE_KMS_RELAYER=
+USE_KMS_RELAYER=
+
+# Optional: JSON encoded string of the `chains.json` file.
+CHAINS=
+# Optional: Path to the `chains.json` file.
+CHAINS_PATH=

.gitignore

@@ -21,4 +21,6 @@ pgo-data.profdata
 filtered_transactions/**.csv
 filtered_transactions
 
-chains.json
+chains.json
+chains*.json
+!chains.example.json

script/bin/operator.rs

@@ -295,7 +295,10 @@ impl ChainConfig {
 
         let path = env::var("CHAINS_PATH").unwrap_or(DEFAULT_PATH.to_string());
 
-        Self::from_file(&path).or_else(|_| Self::from_env())
+        Self::from_file(&path).or_else(|_| {
+            tracing::info!("No chains file found, trying env.");
+            Self::from_env()
+        })
     }
 
     /// Tries to read from the `CHAINS` environment variable.
@@ -308,8 +311,7 @@ impl ChainConfig {
     fn from_file(path: &str) -> Result<Vec<Self>> {
         tracing::debug!("Reading chains from file: {}", path);
 
-        let file = std::fs::read_to_string(path)
-            .inspect_err(|e| println!("Error reading file: {:?}", e))?;
+        let file = std::fs::read_to_string(path)?;
 
         Ok(serde_json::from_str(&file)?)
     }