move transport config checks to respective modules

1 files changed, 11 insertions, 0 deletions

diff --git a/src/transport/tor.rs b/src/transport/tor.rs
index 8eb1d02..f2e0199 100644
--- a/src/transport/tor.rs
+++ b/src/transport/tor.rs
@@ -198,6 +198,17 @@ impl TorTransport {
     /// while: it fetches what it needs to know of the Tor network). Until it is done,
     /// dials wait for it (arti bootstraps on demand), and the onion service is published
     /// once it is: the node starts without waiting for Tor.
+    /// This transport's options, checked when the configuration is loaded
+    /// (`config::Settings::check`), if the node uses it: where arti keeps its state.
+    pub(crate) fn check(settings: &crate::config::Settings) -> Result<()> {
+        if settings.tor_state_dir.is_none() {
+            bail!(
+                "tor needs tor-state-dir: where arti keeps its state, the onion service's key among it"
+            );
+        }
+        Ok(())
+    }
+
     /// The transport as `settings` configure it (`transport::start`), proving `key`.
     /// None if `stop` came first (bootstrapping arti can take a while).
     pub(crate) async fn from_settings(