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feat!: LocalChain with hardwired genesis checkpoint

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This ensures that `LocalChain` will always have a tip. The `ChainOracle`
trait's `get_chain_tip` method no longer needs to return an option.
This commit is contained in:
志宇
2023-10-12 16:55:32 +08:00
parent d6a0cf0795
commit 5998a22819
19 changed files with 562 additions and 452 deletions
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14
example-crates/example_esplora/src/main.rs
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@@ -5,10 +5,10 @@ use std::{
};
use bdk_chain::{
bitcoin::{Address, Network, OutPoint, ScriptBuf, Txid},
bitcoin::{constants::genesis_block, Address, Network, OutPoint, ScriptBuf, Txid},
indexed_tx_graph::{self, IndexedTxGraph},
keychain,
local_chain::{self, CheckPoint, LocalChain},
local_chain::{self, LocalChain},
Append, ConfirmationTimeHeightAnchor,
};
@@ -102,6 +102,8 @@ fn main() -> anyhow::Result<()> {
let (args, keymap, index, db, init_changeset) =
example_cli::init::<EsploraCommands, EsploraArgs, ChangeSet>(DB_MAGIC, DB_PATH)?;
let genesis_hash = genesis_block(args.network).block_hash();
let (init_chain_changeset, init_indexed_tx_graph_changeset) = init_changeset;
// Contruct `IndexedTxGraph` and `LocalChain` with our initial changeset. They are wrapped in
@@ -113,8 +115,8 @@ fn main() -> anyhow::Result<()> {
graph
});
let chain = Mutex::new({
let mut chain = LocalChain::default();
chain.apply_changeset(&init_chain_changeset);
let (mut chain, _) = LocalChain::from_genesis_hash(genesis_hash);
chain.apply_changeset(&init_chain_changeset)?;
chain
});
@@ -234,7 +236,7 @@ fn main() -> anyhow::Result<()> {
{
let graph = graph.lock().unwrap();
let chain = chain.lock().unwrap();
let chain_tip = chain.tip().map(|cp| cp.block_id()).unwrap_or_default();
let chain_tip = chain.tip().block_id();
if *all_spks {
let all_spks = graph
@@ -332,7 +334,7 @@ fn main() -> anyhow::Result<()> {
(missing_block_heights, tip)
};
println!("prev tip: {}", tip.as_ref().map_or(0, CheckPoint::height));
println!("prev tip: {}", tip.height());
println!("missing block heights: {:?}", missing_block_heights);
// Here, we actually fetch the missing blocks and create a `local_chain::Update`.