e48b911c8d23cceab2071cc92085fe6675d55ca9 refactor: Make test errors more readable (Daniela Brozzoni) a7a1d9b2fb9fda4d86fe17cf90d9c0d46c4d8609 fix: non-wildcard descriptors should return an.. ..spk only if index is equal to 0 (Daniela Brozzoni) cc1a43c495639f0dbe6da52501cb48f17b8cbbd2 fix: SpkIterator::new_with_range takes wildcards.. ..into account (Daniela Brozzoni) Pull request description: ### Description When you pass a non-wildcard descriptor in `new_with_range`, we make sure that the range length is at most 1; if that's not the case, we shorten it. We would previously use `new_with_range` without this check and with a non-wildcard descriptor in `spks_of_all_keychains`, this meant creating a spkiterator that would go on producing the same spks over and over again, causing some issues with syncing on electrum/esplora. To reproduce the bug, run in `example-crates/example_electrum`: ``` cargo run "sh(wsh(or_d(c:pk_k(cPGudvRLDSgeV4hH9NUofLvYxYBSRjju3cpiXmBg9K8G9k1ikCMp),c:pk_k(cSBSBHRrzqSXFmrBhLkZMzQB9q4P9MnAq92v8d9a5UveBc9sLX32))))#zp9pcfs9" scan ``` ### Changelog notice - Fixed a bug where `KeychainTxOutIndex::spks_of_all_keychains`/`KeychainTxOutIndex::spks_of_keychain` would return an iterator yielding infinite spks even for non-wildcard descriptors. ### 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 ACKs for top commit: evanlinjin: ACK e48b911c8d23cceab2071cc92085fe6675d55ca9 Tree-SHA512: 87627505049eadcec979a05888ec0d8a25c4743c03696a7db68348d457c2bf006d9b3b69c99e208f7812fc5b0234dd5a98b4a923c2486615c7678c3ab523f8cf
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.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 1.57.0.
To build with the MSRV you will need to pin dependencies as follows:
# log 0.4.19 has MSRV 1.60.0+
cargo update -p log --precise "0.4.18"
# tempfile 3.7.0 has MSRV 1.63.0+
cargo update -p tempfile --precise "3.6.0"
# rustls 0.21.2 has MSRV 1.60.0+
cargo update -p rustls:0.21.7 --precise "0.21.1"
# rustls 0.20.9 has MSRV 1.60.0+
cargo update -p rustls:0.20.9 --precise "0.20.8"
# tokio 1.30 has MSRV 1.63.0+
cargo update -p tokio:1.32.0 --precise "1.29.1"
# flate2 1.0.27 has MSRV 1.63.0+
cargo update -p flate2:1.0.27 --precise "1.0.26"
# reqwest 0.11.19 has MSRV 1.63.0+
cargo update -p reqwest --precise "0.11.18"
# h2 0.3.21 has MSRV 1.63.0+
cargo update -p h2 --precise "0.3.20"
# rustls-webpki has MSRV 1.60.0+
cargo update -p rustls-webpki --precise "0.100.1"
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.