Add config options as CLI arguments

Author: ChiefWoods

tuktuk-crank-turner/src/main.rs

@@ -53,6 +53,18 @@ pub struct Cli {
         default_value = "~/.config/helium/cli/tuktuk-crank-turner/config.toml"
     )]
     pub config: Option<path::PathBuf>,
+
+    /// RPC endpoint URL
+    #[clap(short = 'u', long)]
+    pub rpc_url: Option<String>,
+
+    /// Path to Solana keypair file
+    #[clap(short = 'k', long)]
+    pub key_path: Option<String>,
+
+    /// Minimum crank fee in lamports
+    #[clap(short = 'm', long)]
+    pub min_crank_fee: Option<u64>,
 }
 
 impl Cli {
@@ -104,7 +116,19 @@ const PACKED_TX_CHANNEL_CAPACITY: usize = 32;
 impl Cli {
     pub async fn run(&self) -> Result<()> {
         register_custom_metrics();
-        let settings = Settings::new(self.get_expanded_config_path().as_ref())?;
+        let mut settings = Settings::new(self.get_expanded_config_path().as_ref())?;
+
+        // Apply CLI overrides
+        if let Some(rpc_url) = &self.rpc_url {
+            settings.rpc_url = rpc_url.clone();
+        }
+        if let Some(key_path) = &self.key_path {
+            settings.key_path = key_path.clone();
+        }
+        if let Some(min_crank_fee) = self.min_crank_fee {
+            settings.min_crank_fee = min_crank_fee;
+        }
+
         tracing_subscriber::registry()
             .with(tracing_subscriber::EnvFilter::new(&settings.log))
             .with(tracing_subscriber::fmt::layer().with_span_events(FmtSpan::CLOSE))