Esplora::update_local_chain
and add tests
c5afbaa95d7bc699981d6fe7f9964a41b7587d5c ci: update zstd-sys version to work with MSRV 1.63 (Steve Myers) 929b5ddb0c2e0dc7c346c08888201ac54efab84d refactor(esplora): better variable naming and docs (志宇) 216648bcfd2c622890bf7f50fb2eaa4396c42ed1 chore(esplora): Clarify consistency guarantees (LLFourn) 63fa710319f231f7f28d92cb49b0399f3250c9da fix(esplora): reuse returned height instead of zipping (志宇) 6f824cf325c6c882b00742d814be1d72602f05a6 test(esplora): introduce test cases for `update_local_chain` (志宇) f05e8502e69a051af9869be6ba5ad9a376b25fc2 feat(esplora): greatly simplify `update_local_chain` (志宇) Pull request description: Fixes #1199 ### Description After a second look at the `update_local_chain` implementations, it was clear that they were over complicated. This PR simplifies the `EsploraExt::update_local_chain` method(s) of the `bdk_esplora` crate and adds a whole bunch of tests. ### Notes to the reviewers The description of #1199 is very brief, however @danielabrozzoni mentioned about potentially-problematic logic with `ASSUME_FINAL_DEPTH`. The logic was indeed convoluted and it did not need to be that way. This PR removes the need for `ASSUME_FINAL_DEPTH`. ### Changelog notice Fixed - Simplified `EsploraExt::update_local_chain` logic. ### Checklists #### All Submissions: * [x] I've signed all my commits * [x] I followed the [contribution guidelines](https://github.com/bitcoindevkit/bdk/blob/master/CONTRIBUTING.md) * [x] I ran `cargo fmt` and `cargo clippy` before committing #### Bugfixes: ~* [ ] This pull request breaks the existing API~ ~* [ ] I've added tests to reproduce the issue which are now passing~ (there are now lots of tests though) * [x] I'm linking the issue being fixed by this PR ACKs for top commit: evanlinjin: ACK c5afbaa95d7bc699981d6fe7f9964a41b7587d5c notmandatory: utACK c5afbaa95d7bc699981d6fe7f9964a41b7587d5c Tree-SHA512: f588493a4643f0f68d3181f27adf91793d4e336be6e853a26289e0916ed83169e1067260b75e627f190842f691ec095e668c0b799ca80e7da2849dd28de32754
The Bitcoin Dev Kit
BDK

A modern, lightweight, descriptor-based wallet library written in Rust!
Project Homepage | Documentation
About
The bdk
libraries aims to provide well engineered and reviewed components for Bitcoin based applications.
It is built upon the excellent rust-bitcoin
and rust-miniscript
crates.
⚠ The Bitcoin Dev Kit developers are in the process of releasing a
v1.0
which is a fundamental re-write of how the library works. See for some background on this project: https://bitcoindevkit.org/blog/road-to-bdk-1/ (ignore the timeline 😁) For a release timeline see theBDK 1.0 project page
.
Architecture
The project is split up into several crates in the /crates
directory:
bdk
: Contains the central high levelWallet
type that is built from the low-level mechanisms provided by the other componentschain
: Tools for storing and indexing chain datafile_store
: A (experimental) persistence backend for storing chain data in a single file.esplora
: Extends theesplora-client
crate with methods to fetch chain data from an esplora HTTP server in the form thatbdk_chain
andWallet
can consume.electrum
: Extends theelectrum-client
crate with methods to fetch chain data from an electrum server in the form thatbdk_chain
andWallet
can consume.
Fully working examples of how to use these components are in /example-crates
:
example_cli
: Library used by theexample_*
crates. Provides utilities for syncing, showing the balance, generating addresses and creating transactions without using the bdkWallet
.example_electrum
: A command line Bitcoin wallet application built on top ofexample_cli
and theelectrum
crate. It shows the power of the bdk tools (chain
+file_store
+electrum
), without depending on the mainbdk
library.example_esplora
: A command line Bitcoin wallet application built on top ofexample_cli
and theesplora
crate. It shows the power of the bdk tools (chain
+file_store
+esplora
), without depending on the mainbdk
library.example_bitcoind_rpc_polling
: A command line Bitcoin wallet application built on top ofexample_cli
and thebitcoind_rpc
crate. It shows the power of the bdk tools (chain
+file_store
+bitcoind_rpc
), without depending on the mainbdk
library.wallet_esplora_blocking
: Uses theWallet
to sync and spend using the Esplora blocking interface.wallet_esplora_async
: Uses theWallet
to sync and spend using the Esplora asynchronous interface.wallet_electrum
: Uses theWallet
to sync and spend using Electrum.
Minimum Supported Rust Version (MSRV)
This library should compile with any combination of features with Rust 1.63.0.
To build with the MSRV you will need to pin dependencies as follows:
# zip 0.6.3 has MSRV 1.64.0
cargo update -p zip --precise "0.6.2"
# time 0.3.21 has MSRV 1.65.0
cargo update -p time --precise "0.3.20"
# jobserver 0.1.27 has MSRV 1.66.0
cargo update -p jobserver --precise "0.1.26"
# home 0.5.9 has MSRV 1.70.0
cargo update -p home --precise "0.5.5"
License
Licensed under either of
- Apache License, Version 2.0, (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)
at your option.
Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.