feat(audit): make svg processing a non-deafult feat

sn_auditor/Cargo.toml

@@ -11,22 +11,34 @@ readme = "README.md"
 
 [features]
 default = []
-local-discovery=["sn_client/local-discovery", "sn_peers_acquisition/local-discovery"]
+local-discovery = [
+    "sn_client/local-discovery",
+    "sn_peers_acquisition/local-discovery",
+]
 network-contacts = ["sn_peers_acquisition/network-contacts"]
 open-metrics = ["sn_client/open-metrics"]
 websockets = ["sn_client/websockets"]
+svg-dag = ["graphviz-rust"]
 
 [dependencies]
 bls = { package = "blsttc", version = "8.0.1" }
 clap = { version = "4.2.1", features = ["derive"] }
 color-eyre = "~0.6"
 dirs-next = "~2.0.0"
-graphviz-rust = "0.9.0"
-serde = { version = "1.0.133", features = [ "derive", "rc" ]}
+graphviz-rust = { version = "0.9.0", optional = true }
+serde = { version = "1.0.133", features = ["derive", "rc"] }
 serde_json = "1.0.108"
 sn_client = { path = "../sn_client", version = "0.106.2" }
 sn_logging = { path = "../sn_logging", version = "0.2.26" }
-sn_peers_acquisition= { path="../sn_peers_acquisition", version = "0.2.12" }
-tiny_http = { version="0.12", features = ["ssl-rustls"] }
+sn_peers_acquisition = { path = "../sn_peers_acquisition", version = "0.2.12" }
+tiny_http = { version = "0.12", features = ["ssl-rustls"] }
 tracing = { version = "~0.1.26" }
-tokio = { version = "1.32.0", features = ["io-util", "macros", "parking_lot", "rt", "sync", "time", "fs"] }
+tokio = { version = "1.32.0", features = [
+    "io-util",
+    "macros",
+    "parking_lot",
+    "rt",
+    "sync",
+    "time",
+    "fs",
+] }

sn_auditor/src/dag_db.rs

@@ -8,6 +8,7 @@
 
 use bls::SecretKey;
 use color_eyre::eyre::{eyre, Result};
+#[cfg(feature = "svg")]
 use graphviz_rust::{cmd::Format, exec, parse, printer::PrinterContext};
 use serde::{Deserialize, Serialize};
 use sn_client::networking::NetworkError;
@@ -146,6 +147,7 @@ impl SpendDagDb {
     }
 
     /// Dump current DAG as svg to disk
+    #[cfg(feature = "svg")]
     pub fn dump_dag_svg(&self) -> Result<()> {
         info!("Dumping DAG to svg...");
         std::fs::create_dir_all(&self.path)?;
@@ -187,13 +189,17 @@ impl SpendDagDb {
         *w_handle = dag;
         std::mem::drop(w_handle);
 
-        // update and save svg to file in a background thread so we don't block
-        let self_clone = self.clone();
-        tokio::spawn(async move {
-            if let Err(e) = self_clone.dump_dag_svg() {
-                error!("Failed to dump DAG svg: {e}");
-            }
-        });
+        #[cfg(feature = "svg")]
+        {
+            // update and save svg to file in a background thread so we don't block
+            //
+            let self_clone = self.clone();
+            tokio::spawn(async move {
+                if let Err(e) = self_clone.dump_dag_svg() {
+                    error!("Failed to dump DAG svg: {e}");
+                }
+            });
+        }
 
         // gather forwarded payments in a background thread so we don't block
         let mut self_clone = self.clone();
@@ -321,6 +327,7 @@ pub async fn new_dag_with_genesis_only(client: &Client) -> Result<SpendDag> {
     Ok(dag)
 }
 
+#[cfg(feature = "svg")]
 fn dag_to_svg(dag: &SpendDag) -> Result<Vec<u8>> {
     let dot = dag.dump_dot_format();
     let graph = parse(&dot).map_err(|err| eyre!("Failed to parse dag from dot: {err}"))?;
@@ -340,6 +347,7 @@ fn dag_to_svg(dag: &SpendDag) -> Result<Vec<u8>> {
 // - marks poisoned spends as red
 // - marks UTXOs and unknown ancestors as yellow
 // - just pray it works on windows
+#[cfg(feature = "svg")]
 fn quick_edit_svg(svg: Vec<u8>, dag: &SpendDag) -> Result<Vec<u8>> {
     let mut str = String::from_utf8(svg).map_err(|err| eyre!("Failed svg conversion: {err}"))?;
 

sn_auditor/src/main.rs

@@ -104,7 +104,10 @@ async fn main() -> Result<()> {
 
     if let Some(dag_to_view) = opt.offline_viewer {
         let dag = SpendDagDb::offline(dag_to_view, sk)?;
-        dag.dump_dag_svg()?;
+        #[cfg(feature = "svg")]
+        {
+            dag.dump_dag_svg()?;
+        }
         start_server(dag).await?;
         return Ok(());
     }
@@ -208,6 +211,7 @@ async fn initialize_background_spend_dag_collection(
     }
 
     // initialize svg
+    #[cfg(feature = "svg")]
     dag.dump_dag_svg()?;
 
     // initialize beta rewards program tracking