feat: add UTXO indexer with CLI commands and serialization logic

Author: ivanlele

utxo_indexer/Cargo.toml

@@ -1,17 +1,3 @@
-[package]
-name = "utxo_indexer"
-version = "0.1.0"
-edition = "2024"
-
-[[bin]]
-name = "utxo_indexer"
-path = "src/main.rs"
-
-[dependencies]
-anyhow = "1.0.100"
-bincode = "2.0.1"
-bitcoin = "0.32.7"
-byteorder = "1.5.0"
-clap = { version = "4.5.51", features = ["derive"] }
-hex = "0.4.3"
-rocksdb = "0.24.0"
+[workspace]
+resolver = "3"
+members = ["indexer"]

utxo_indexer/indexer/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "indexer"
+version = "0.1.0"
+edition = "2024"
+
+[[bin]]
+name = "indexer"
+path = "src/main.rs"
+
+[dependencies]
+anyhow = "1.0.100"
+bincode = "2.0.1"
+bitcoin = "0.32.7"
+byteorder = "1.5.0"
+clap = { version = "4.5.51", features = ["derive"] }
+hex = "0.4.3"
+rocksdb = "0.24.0"

utxo_indexer/src/bitcoin_primitives.rs renamed to utxo_indexer/indexer/src/bitcoin_primitives.rs

@@ -10,7 +10,6 @@ use rocksdb::{DB, IteratorMode, Options};
 use std::{
     fs::File,
     io::{BufReader, BufWriter},
-    path::Path,
 };
 
 use bitcoin::hashes::sha256;
@@ -106,6 +105,8 @@ fn run_build_merkle_root(utxo_index_path: &str) -> Result<()> {
 
     let utxos = load_utxos(utxo_index_path)?;
 
+    println!("Calculating Merkle root for {} UTXOs", utxos.len());
+
     let mut merkle_tree_leaf_hashes: Vec<sha256::Hash> = Vec::with_capacity(utxos.len());
     for utxo in utxos {
         let leaf_hash = sha256::Hash::hash(&utxo);