wip: dump waaaaaay too much stuff

Cargo.lock

@@ -1172,10 +1172,15 @@ dependencies = [
  "clap 3.1.18",
  "err-derive",
  "heed",
+ "hex",
  "hexdump",
  "mktemp",
+ "nettext",
  "pretty_env_logger",
+ "rmp-serde",
  "rusqlite",
+ "serde",
+ "serde-transcode",
  "sled",
  "tracing",
 ]
@@ -2141,6 +2146,17 @@ dependencies = [
  "tokio-util 0.7.0",
 ]
 
+[[package]]
+name = "nettext"
+version = "0.3.2"
+dependencies = [
+ "base64",
+ "err-derive",
+ "hex",
+ "nom",
+ "serde",
+]
+
 [[package]]
 name = "nom"
 version = "7.1.1"
@@ -3282,6 +3298,15 @@ dependencies = [
  "serde_derive",
 ]
 
+[[package]]
+name = "serde-transcode"
+version = "1.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "590c0e25c2a5bb6e85bf5c1bce768ceb86b316e7a01bdf07d2cb4ec2271990e2"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "serde-value"
 version = "0.7.0"

src/db/Cargo.toml

@@ -18,6 +18,7 @@ required-features = ["cli"]
 
 [dependencies]
 err-derive = "0.3"
+hex = "0.4"
 hexdump = "0.1"
 tracing = "0.1.30"
 
@@ -25,6 +26,11 @@ heed = { version = "0.11", default-features = false, features = ["lmdb"], option
 rusqlite = { version = "0.27", optional = true }
 sled = { version = "0.34", optional = true }
 
+rmp-serde = { version = "0.15", optional = true }
+serde = { version = "1.0", default-features = false, features = ["derive", "rc"], optional = true }
+serde-transcode = { version = "1.1", optional = true }
+nettext = { version = "0.3.2", default-features = false, features = ["serde"], optional = true, path = "../../../nettext" }
+
 # cli deps
 clap = { version = "3.1.18", optional = true, features = ["derive", "env"] }
 pretty_env_logger = { version = "0.4", optional = true }
@@ -38,3 +44,4 @@ bundled-libs = [ "rusqlite/bundled" ]
 cli = ["clap", "pretty_env_logger"]
 lmdb = [ "heed" ]
 sqlite = [ "rusqlite" ]
+debuglog = [ "serde", "rmp-serde", "nettext", "serde-transcode" ]

src/db/lib.rs

@@ -173,9 +173,22 @@ impl Tree {
 		Db(self.0.clone())
 	}
 
+	#[inline]
+	pub fn name(&self) -> Option<String> {
+		self.0.tree_name(self.1)
+	}
+
 	#[inline]
 	pub fn get<T: AsRef<[u8]>>(&self, key: T) -> Result<Option<Value>> {
-		self.0.get(self.1, key.as_ref())
+		let res = self.0.get(self.1, key.as_ref())?;
+		#[cfg(feature = "debuglog")]
+		debuglog(
+			self.name(),
+			"GET",
+			key.as_ref(),
+			res.as_deref().unwrap_or(b"-"),
+		);
+		Ok(res)
 	}
 	#[inline]
 	pub fn len(&self) -> Result<usize> {
@@ -204,7 +217,10 @@ impl Tree {
 		key: T,
 		value: U,
 	) -> Result<Option<Value>> {
-		self.0.insert(self.1, key.as_ref(), value.as_ref())
+		let res = self.0.insert(self.1, key.as_ref(), value.as_ref())?;
+		#[cfg(feature = "debuglog")]
+		debuglog(self.name(), "PUT", key.as_ref(), value.as_ref());
+		Ok(res)
 	}
 	/// Returns the old value if there was one
 	#[inline]
@@ -267,7 +283,10 @@ impl<'a> Transaction<'a> {
 		key: T,
 		value: U,
 	) -> TxOpResult<Option<Value>> {
-		self.0.insert(tree.1, key.as_ref(), value.as_ref())
+		let res = self.0.insert(tree.1, key.as_ref(), value.as_ref())?;
+		#[cfg(feature = "debuglog")]
+		debuglog(tree.name(), "txPUT", key.as_ref(), value.as_ref());
+		Ok(res)
 	}
 	/// Returns the old value if there was one
 	#[inline]
@@ -324,6 +343,7 @@ pub(crate) trait IDb: Send + Sync {
 	fn engine(&self) -> String;
 	fn open_tree(&self, name: &str) -> Result<usize>;
 	fn list_trees(&self) -> Result<Vec<String>>;
+	fn tree_name(&self, tree: usize) -> Option<String>;
 
 	fn get(&self, tree: usize, key: &[u8]) -> Result<Option<Value>>;
 	fn len(&self, tree: usize) -> Result<usize>;
@@ -421,3 +441,29 @@ fn get_bound<K: AsRef<[u8]>>(b: Bound<&K>) -> Bound<&[u8]> {
 		Bound::Unbounded => Bound::Unbounded,
 	}
 }
+
+#[cfg(feature = "debuglog")]
+fn debuglog(tree: Option<String>, action: &str, k: &[u8], v: &[u8]) {
+	let key = String::from_utf8(nettext::switch64::encode(k, false)).unwrap();
+	let tree = tree.as_deref().unwrap_or("(?)");
+	if let Ok(vstr) = std::str::from_utf8(v) {
+		eprintln!("{} {} {} S:{}", tree, action, key, vstr);
+	} else {
+		let mut vread = &v[..];
+		let mut vder = rmp_serde::decode::Deserializer::new(&mut vread);
+		let mut vser = nettext::serde::Serializer {
+			string_format: nettext::BytesEncoding::Switch64 {
+				allow_whitespace: true,
+			},
+			bytes_format: nettext::BytesEncoding::Hex { split: true },
+		};
+		if let Some(venc) = serde_transcode::transcode(&mut vder, &mut vser)
+			.ok()
+			.and_then(|x| String::from_utf8(x.encode_concise()).ok())
+		{
+			eprintln!("{} {} {} N:{}", tree, action, key, venc);
+		} else {
+			eprintln!("{} {} {} X:{}", tree, action, key, hex::encode(v));
+		}
+	}
+}

src/db/sled_adapter.rs

@@ -88,6 +88,15 @@ impl IDb for SledDb {
 		Ok(trees)
 	}
 
+	fn tree_name(&self, tree: usize) -> Option<String> {
+		self.trees
+			.read()
+			.unwrap()
+			.0
+			.get(tree)
+			.and_then(|x| String::from_utf8(x.name().to_vec()).ok())
+	}
+
 	// ----
 
 	fn get(&self, tree: usize, key: &[u8]) -> Result<Option<Value>> {

src/garage/repair/online.rs

@@ -171,7 +171,8 @@ impl Worker for RepairBlockrefsWorker {
 	}
 
 	async fn work(&mut self, _must_exit: &mut watch::Receiver<bool>) -> Result<WorkerState, Error> {
-		let (item_bytes, next_pos) = match self.garage.block_ref_table.data.store.get_gt(&self.pos)? {
+		let (item_bytes, next_pos) =
+			match self.garage.block_ref_table.data.store.get_gt(&self.pos)? {
 				Some((k, v)) => (v, k),
 				None => {
 					info!("repair_block_ref: finished, done {}", self.counter);