[Feature] watching a directory for .torrent files and adding them automatically

crates/dht/src/dht.rs

@@ -265,7 +265,7 @@ impl RecursiveRequest<RecursiveRequestCallbacksFindNodes> {
         let request_one = |id, addr, depth| {
             req.request_one(id, addr, depth)
                 .map_err(|e| {
-                    debug!("error: {e:?}");
+                    debug!("error: {e:#}");
                     e
                 })
                 .instrument(error_span!(
@@ -341,7 +341,7 @@ impl RecursiveRequest<RecursiveRequestCallbacksGetPeers> {
                                 Ok(n) if n < 8 => REQUERY_INTERVAL / 8 * (n as u32),
                                 Ok(_) => REQUERY_INTERVAL,
                                 Err(e) => {
-                                    error!("error in get_peers_root(): {e:?}");
+                                    error!("error in get_peers_root(): {e:#}");
                                     return Err::<(), anyhow::Error>(e);
                                 }
                             };
@@ -359,7 +359,7 @@ impl RecursiveRequest<RecursiveRequestCallbacksGetPeers> {
                             let (id, addr, depth) = addr.unwrap();
                             futs.push(
                                 this.request_one(id, addr, depth)
-                                    .map_err(|e| debug!("error: {e:?}"))
+                                    .map_err(|e| debug!("error: {e:#}"))
                                     .instrument(error_span!("addr", addr=addr.to_string()))
                             );
                         }
@@ -996,7 +996,7 @@ impl DhtWorker {
                             },
                             Err(e) => {
                                 self.dht.routing_table.write().mark_error(&id);
-                                debug!("error: {e:?}");
+                                debug!("error: {e:#}");
                             }
                         }
                     }.instrument(error_span!("ping", addr=addr.to_string())))
@@ -1033,7 +1033,7 @@ impl DhtWorker {
                 )
                 .unwrap();
                 if let Err(e) = socket.send_to(&buf, addr).await {
-                    debug!("error sending to {addr}: {e:?}");
+                    debug!("error sending to {addr}: {e:#}");
                     if let Some(tid) = our_tid {
                         self.on_send_error(tid, addr, e.into());
                     }

crates/librqbit/Cargo.toml

@@ -36,6 +36,7 @@ storage_examples = []
 tracing-subscriber-utils = ["tracing-subscriber"]
 postgres = ["sqlx"]
 async-bt = ["async-backtrace"]
+watch = ["notify"]
 
 [dependencies]
 sqlx = { version = "0.8.2", features = [
@@ -105,6 +106,8 @@ mime_guess = { version = "2.0.5", default-features = false }
 tokio-socks = "0.5.2"
 async-trait = "0.1.81"
 async-backtrace = { version = "0.2", optional = true }
+notify = { version = "6.1.1", optional = true }
+walkdir = "2.5.0"
 
 [build-dependencies]
 anyhow = "1"

crates/librqbit/src/api.rs

@@ -72,7 +72,7 @@ impl<'de> Deserialize<'de> for TorrentIdOrHash {
 
         macro_rules! visit_int {
             ($v:expr) => {{
-                let tid: TorrentId = $v.try_into().map_err(|e| E::custom(format!("{e:?}")))?;
+                let tid: TorrentId = $v.try_into().map_err(|e| E::custom(format!("{e:#}")))?;
                 Ok(TorrentIdOrHash::from(tid))
             }};
         }
@@ -118,7 +118,7 @@ impl<'de> Deserialize<'de> for TorrentIdOrHash {
             {
                 TorrentIdOrHash::parse(v).map_err(|e| {
                     E::custom(format!(
-                        "expected integer or 40 byte info hash, couldn't parse string: {e:?}"
+                        "expected integer or 40 byte info hash, couldn't parse string: {e:#}"
                     ))
                 })
             }

crates/librqbit/src/create_torrent_file.rs

@@ -20,28 +20,13 @@ pub struct CreateTorrentOptions<'a> {
 }
 
 fn walk_dir_find_paths(dir: &Path, out: &mut Vec<Cow<'_, Path>>) -> anyhow::Result<()> {
-    let mut stack = vec![Cow::Borrowed(dir)];
-    while let Some(dir) = stack.pop() {
-        let rd = std::fs::read_dir(&dir).with_context(|| format!("error reading {:?}", dir))?;
-        for element in rd {
-            let element =
-                element.with_context(|| format!("error reading DirEntry from {:?}", dir))?;
-            let ft = element.file_type().with_context(|| {
-                format!(
-                    "error determining filetype of DirEntry {:?} while reading {:?}",
-                    element.file_name(),
-                    dir
-                )
-            })?;
-
-            let full_path = Cow::Owned(dir.join(element.file_name()));
-            if ft.is_dir() {
-                stack.push(full_path);
-            } else {
-                out.push(full_path);
-            }
-        }
-    }
+    out.extend(
+        walkdir::WalkDir::new(dir)
+            .into_iter()
+            .filter_map(|e| e.ok())
+            .filter(|e| e.file_type().is_file())
+            .map(|e| e.path().to_owned().into()),
+    );
     Ok(())
 }
 

crates/librqbit/src/lib.rs

@@ -67,6 +67,8 @@ pub mod tracing_subscriber_config_utils;
 mod type_aliases;
 #[cfg(all(feature = "http-api", feature = "upnp-serve-adapter"))]
 pub mod upnp_server_adapter;
+#[cfg(feature = "watch")]
+pub mod watch;
 
 pub use api::Api;
 pub use api_error::ApiError;

crates/librqbit/src/session.rs

@@ -673,7 +673,7 @@ impl Session {
                     tokio::select! {
                         Some(res) = futs.next(), if !futs.is_empty() => {
                             if let Err(e) = res {
-                                error!("error adding torrent to session: {e:?}");
+                                error!("error adding torrent to session: {e:#}");
                             }
                         }
                         st = ps.next(), if !added_all => {
@@ -1207,6 +1207,10 @@ impl Session {
                 .context("error starting torrent")?;
         }
 
+        if let Some(name) = managed_torrent.shared().info.name.as_ref() {
+            info!(?name, id, "added torrent");
+        }
+
         Ok(AddTorrentResponse::Added(id, managed_torrent))
     }
 
@@ -1248,7 +1252,7 @@ impl Session {
             .with_context(|| format!("torrent with id {} did not exist", id))?;
 
         if let Err(e) = removed.pause() {
-            debug!("error pausing torrent before deletion: {e:?}")
+            debug!("error pausing torrent before deletion: {e:#}")
         }
 
         let storage = removed
@@ -1259,7 +1263,7 @@ impl Session {
                     .pause()
                     // inspect_err not available in 1.75
                     .map_err(|e| {
-                        warn!("error pausing torrent: {e:?}");
+                        warn!("error pausing torrent: {e:#}");
                         e
                     })
                     .ok()
@@ -1285,7 +1289,7 @@ impl Session {
                 if removed.shared().options.output_folder != self.output_folder {
                     if let Err(e) = storage.remove_directory_if_empty(Path::new("")) {
                         warn!(
-                            "error removing {:?}: {e:?}",
+                            "error removing {:?}: {e:#}",
                             removed.shared().options.output_folder
                         )
                     }
@@ -1398,7 +1402,7 @@ fn remove_files_and_dirs(info: &ManagedTorrentShared, files: &dyn TorrentStorage
     };
     for dir in all_dirs {
         if let Err(e) = files.remove_directory_if_empty(dir) {
-            warn!("error removing {dir:?}: {e:?}");
+            warn!("error removing {dir:?}: {e:#}");
         } else {
             debug!("removed {dir:?}")
         }

crates/librqbit/src/tests/e2e.rs

@@ -147,7 +147,7 @@ async fn _test_e2e_download(drop_checks: &DropChecks) {
                                 }
                                 Ok(true)
                             }
-                            crate::ManagedTorrentState::Error(e) => bail!("error: {e:?}"),
+                            crate::ManagedTorrentState::Error(e) => bail!("error: {e:#}"),
                             _ => bail!("broken state"),
                         })
                         .context("error checking for torrent liveness")?;

crates/librqbit/src/torrent_state/live/mod.rs

@@ -1519,7 +1519,7 @@ impl PeerHandler {
             match state.file_ops().write_chunk(addr, piece, chunk_info) {
                 Ok(()) => {}
                 Err(e) => {
-                    error!("FATAL: error writing chunk to disk: {:?}", e);
+                    error!("FATAL: error writing chunk to disk: {e:#}");
                     return state.on_fatal_error(e);
                 }
             };

crates/librqbit/src/torrent_state/streaming.rs

@@ -154,7 +154,7 @@ macro_rules! poll_try_io {
         match e {
             Ok(r) => r,
             Err(e) => {
-                debug!("stream error {e:?}");
+                debug!("stream error {e:#}");
                 return Poll::Ready(Err(e));
             }
         }