feat: introduce PrunerBuilder (#5834)

Cargo.lock

@@ -6308,6 +6308,7 @@ dependencies = [
  "itertools 0.11.0",
  "metrics",
  "rayon",
+ "reth-config",
  "reth-db",
  "reth-interfaces",
  "reth-metrics",

bin/reth/src/node/mod.rs

@@ -64,11 +64,10 @@ use reth_provider::{
     providers::BlockchainProvider, BlockHashReader, BlockReader, CanonStateSubscriptions,
     HeaderProvider, HeaderSyncMode, ProviderFactory, StageCheckpointReader,
 };
-use reth_prune::{segments::SegmentSet, Pruner};
+use reth_prune::PrunerBuilder;
 use reth_revm::EvmProcessorFactory;
 use reth_revm_inspectors::stack::Hook;
 use reth_rpc_engine_api::EngineApi;
-use reth_snapshot::HighestSnapshotsTracker;
 use reth_stages::{
     prelude::*,
     stages::{
@@ -475,12 +474,10 @@ impl<Ext: RethCliExt> NodeCommand<Ext> {
         let mut hooks = EngineHooks::new();
 
         let pruner_events = if let Some(prune_config) = prune_config {
-            let mut pruner = self.build_pruner(
+            let mut pruner = PrunerBuilder::new(prune_config.clone())
-                &prune_config,
+                .max_reorg_depth(tree_config.max_reorg_depth() as usize)
-                provider_factory,
+                .prune_delete_limit(self.chain.prune_delete_limit)
-                tree_config,
+                .build(provider_factory, snapshotter.highest_snapshot_receiver());
-                snapshotter.highest_snapshot_receiver(),
-            );
 
             let events = pruner.events();
             hooks.add(PruneHook::new(pruner, Box::new(ctx.task_executor.clone())));
@@ -975,53 +972,6 @@ impl<Ext: RethCliExt> NodeCommand<Ext> {
         Ok(pipeline)
     }
 
-    /// Builds a [Pruner] with the given config.
-    fn build_pruner<DB: Database>(
-        &self,
-        config: &PruneConfig,
-        provider_factory: ProviderFactory<DB>,
-        tree_config: BlockchainTreeConfig,
-        highest_snapshots_rx: HighestSnapshotsTracker,
-    ) -> Pruner<DB> {
-        let segments = SegmentSet::default()
-            // Receipts
-            .segment_opt(config.segments.receipts.map(reth_prune::segments::Receipts::new))
-            // Receipts by logs
-            .segment_opt((!config.segments.receipts_log_filter.is_empty()).then(|| {
-                reth_prune::segments::ReceiptsByLogs::new(
-                    config.segments.receipts_log_filter.clone(),
-                )
-            }))
-            // Transaction lookup
-            .segment_opt(
-                config
-                    .segments
-                    .transaction_lookup
-                    .map(reth_prune::segments::TransactionLookup::new),
-            )
-            // Sender recovery
-            .segment_opt(
-                config.segments.sender_recovery.map(reth_prune::segments::SenderRecovery::new),
-            )
-            // Account history
-            .segment_opt(
-                config.segments.account_history.map(reth_prune::segments::AccountHistory::new),
-            )
-            // Storage history
-            .segment_opt(
-                config.segments.storage_history.map(reth_prune::segments::StorageHistory::new),
-            );
-
-        Pruner::new(
-            provider_factory,
-            segments.into_vec(),
-            config.block_interval,
-            self.chain.prune_delete_limit,
-            tree_config.max_reorg_depth() as usize,
-            highest_snapshots_rx,
-        )
-    }
-
     /// Change rpc port numbers based on the instance number.
     fn adjust_instance_ports(&mut self) {
         // auth port is scaled by a factor of instance * 100

crates/config/src/lib.rs

@@ -10,4 +10,4 @@
 #![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]
 
 pub mod config;
-pub use config::Config;
+pub use config::{Config, PruneConfig};

crates/prune/Cargo.toml

@@ -16,6 +16,7 @@ reth-provider.workspace = true
 reth-interfaces.workspace = true
 reth-snapshot.workspace = true
 reth-tokio-util.workspace = true
+reth-config.workspace = true
 
 # async
 tokio = { workspace = true, features = ["sync"] }

crates/prune/src/builder.rs

@@ -0,0 +1,83 @@
+use crate::{segments::SegmentSet, Pruner};
+use reth_config::PruneConfig;
+use reth_db::database::Database;
+use reth_primitives::{PruneModes, MAINNET};
+use reth_provider::ProviderFactory;
+use reth_snapshot::HighestSnapshotsTracker;
+
+/// Contains the information required to build a pruner
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct PrunerBuilder {
+    /// Minimum pruning interval measured in blocks.
+    pub block_interval: usize,
+    /// Pruning configuration for every part of the data that can be pruned.
+    pub segments: PruneModes,
+    /// The number of blocks that can be re-orged.
+    pub max_reorg_depth: usize,
+    /// The delete limit for pruner, per block. In the actual pruner run it will be multiplied by
+    /// the amount of blocks between pruner runs to account for the difference in amount of new
+    /// data coming in.
+    pub prune_delete_limit: usize,
+}
+
+impl PrunerBuilder {
+    /// Creates a new [PrunerBuilder] from the given [PruneConfig].
+    pub fn new(pruner_config: PruneConfig) -> Self {
+        PrunerBuilder::default()
+            .block_interval(pruner_config.block_interval)
+            .segments(pruner_config.segments)
+    }
+
+    /// Sets the minimum pruning interval measured in blocks.
+    pub fn block_interval(mut self, block_interval: usize) -> Self {
+        self.block_interval = block_interval;
+        self
+    }
+
+    /// Sets the configuration for every part of the data that can be pruned.
+    pub fn segments(mut self, segments: PruneModes) -> Self {
+        self.segments = segments;
+        self
+    }
+
+    /// Sets the number of blocks that can be re-orged.
+    pub fn max_reorg_depth(mut self, max_reorg_depth: usize) -> Self {
+        self.max_reorg_depth = max_reorg_depth;
+        self
+    }
+
+    /// Sets the delete limit for pruner, per block.
+    pub fn prune_delete_limit(mut self, prune_delete_limit: usize) -> Self {
+        self.prune_delete_limit = prune_delete_limit;
+        self
+    }
+
+    /// Builds a [Pruner] from the current configuration.
+    pub fn build<DB: Database>(
+        self,
+        provider_factory: ProviderFactory<DB>,
+        highest_snapshots_rx: HighestSnapshotsTracker,
+    ) -> Pruner<DB> {
+        let segments = SegmentSet::<DB>::from_prune_modes(self.segments);
+
+        Pruner::new(
+            provider_factory,
+            segments.into_vec(),
+            self.block_interval,
+            self.prune_delete_limit,
+            self.max_reorg_depth,
+            highest_snapshots_rx,
+        )
+    }
+}
+
+impl Default for PrunerBuilder {
+    fn default() -> Self {
+        Self {
+            block_interval: 5,
+            segments: PruneModes::none(),
+            max_reorg_depth: 64,
+            prune_delete_limit: MAINNET.prune_delete_limit,
+        }
+    }
+}

crates/prune/src/lib.rs

@@ -9,6 +9,7 @@
 #![deny(unused_must_use, rust_2018_idioms)]
 #![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]
 
+mod builder;
 mod error;
 mod event;
 mod metrics;
@@ -16,6 +17,7 @@ mod pruner;
 pub mod segments;
 
 use crate::metrics::Metrics;
+pub use builder::PrunerBuilder;
 pub use error::PrunerError;
 pub use event::PrunerEvent;
 pub use pruner::{Pruner, PrunerResult, PrunerWithResult};

crates/prune/src/segments/set.rs

@@ -1,5 +1,9 @@
-use crate::segments::Segment;
+use crate::segments::{
+    AccountHistory, Receipts, ReceiptsByLogs, Segment, SenderRecovery, StorageHistory,
+    TransactionLookup,
+};
 use reth_db::database::Database;
+use reth_primitives::PruneModes;
 use std::sync::Arc;
 
 /// Collection of [Segment]. Thread-safe, allocated on the heap.
@@ -32,6 +36,35 @@ impl<DB: Database> SegmentSet<DB> {
     pub fn into_vec(self) -> Vec<Arc<dyn Segment<DB>>> {
         self.inner
     }
+
+    /// Creates a [SegmentSet] from an existing [PruneModes].
+    pub fn from_prune_modes(prune_modes: PruneModes) -> Self {
+        let PruneModes {
+            sender_recovery,
+            transaction_lookup,
+            receipts,
+            account_history,
+            storage_history,
+            receipts_log_filter,
+        } = prune_modes;
+
+        SegmentSet::default()
+            // Receipts
+            .segment_opt(receipts.map(Receipts::new))
+            // Receipts by logs
+            .segment_opt(
+                (!receipts_log_filter.is_empty())
+                    .then(|| ReceiptsByLogs::new(receipts_log_filter.clone())),
+            )
+            // Transaction lookup
+            .segment_opt(transaction_lookup.map(TransactionLookup::new))
+            // Sender recovery
+            .segment_opt(sender_recovery.map(SenderRecovery::new))
+            // Account history
+            .segment_opt(account_history.map(AccountHistory::new))
+            // Storage history
+            .segment_opt(storage_history.map(StorageHistory::new))
+    }
 }
 
 impl<DB: Database> Default for SegmentSet<DB> {