f93d5553d1
a0abcbd382doc: Mention multipath specifier (Ava Chow)0019f61fc5tests: Test importing of multipath descriptors (Ava Chow)f97d5c137dwallet, rpc: Allow importdescriptors to import multipath descriptors (Ava Chow)32dcbca3fbrpc: Allow importmulti to import multipath descriptors correctly (Ava Chow)64dfe3ce4bwallet: Move internal to be per key when importing (Ava Chow)1692245525tests: Multipath descriptors for scantxoutset and deriveaddresses (Ava Chow)cddc0ba9a9rpc: Have deriveaddresses derive receiving and change (Ava Chow)360456cd22tests: Multipath descriptors for getdescriptorinfo (Ava Chow)a90eee444ctests: Add unit tests for multipath descriptors (Ava Chow)1bbf46e2dadescriptors: Change Parse to return vector of descriptors (Ava Chow)0d640c6f02descriptors: Have ParseKeypath handle multipath specifiers (Ava Chow)a5f39b1034descriptors: Change ParseScript to return vector of descriptors (Ava Chow)0d55deae15descriptors: Add DescriptorImpl::Clone (Ava Chow)7e86541f72descriptors: Add PubkeyProvider::Clone (Ava Chow) Pull request description: It is convenient to have a descriptor which specifies both receiving and change addresses in a single string. However, as discussed in https://github.com/bitcoin/bitcoin/issues/17190#issuecomment-895515768, it is not feasible to use a generic multipath specification like BIP 88 due to combinatorial blow up and that it would result in unexpected descriptors. To resolve that problem, this PR proposes a targeted solution which allows only a single pair of 2 derivation indexes to be inserted in the place of a single derivation index. So instead of two descriptor `wpkh(xpub.../0/0/*)` and `wpkh(xpub.../0/1/*)` to represent receive and change addresses, this could be written as `wpkh(xpub.../0/<0;1>/*)`. The multipath specifier is of the form `<NUM;NUM>`. Each `NUM` can have its own hardened specifier, e.g. `<0;1h>` is valid. The multipath specifier can also only appear in one path index in the derivation path. This results in the parser returning two descriptors. The first descriptor uses the first `NUM` in all pairs present, and the second uses the second `NUM`. In our implementation, if a multipath descriptor is not provided, a pair is still returned, but the second element is just `nullptr`. The wallet will not output the multipath descriptors (yet). Furthermore, when a multipath descriptor is imported, it is expanded to the two descriptors and each imported on its own, with the second descriptor being implicitly for internal (change) addresses. There is no change to how the wallet stores or outputs descriptors (yet). Note that the path specifier is different from what was proposed. It uses angle brackets and the semicolon because these are unused characters available in the character set and I wanted to avoid conflicts with characters already in use in descriptors. Closes #17190 ACKs for top commit: darosior: re-ACKa0abcbd382mjdietzx: reACKa0abcbd382pythcoiner: reACKa0abcbdfurszy: Code review ACKa0abcbdglozow: light code review ACKa0abcbd382Tree-SHA512: 84ea40b3fd1b762194acd021cae018c2f09b98e595f5e87de5c832c265cfe8a6d0bc4dae25785392fa90db0f6301ddf9aea787980a29c74f81d04b711ac446c2
Bitcoin Core integration/staging tree
For an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/.
What is Bitcoin Core?
Bitcoin Core connects to the Bitcoin peer-to-peer network to download and fully validate blocks and transactions. It also includes a wallet and graphical user interface, which can be optionally built.
Further information about Bitcoin Core is available in the doc folder.
License
Bitcoin Core is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.
Development Process
The master branch is regularly built (see doc/build-*.md for instructions) and tested, but it is not guaranteed to be
completely stable. Tags are created
regularly from release branches to indicate new official, stable release versions of Bitcoin Core.
The https://github.com/bitcoin-core/gui repository is used exclusively for the development of the GUI. Its master branch is identical in all monotree repositories. Release branches and tags do not exist, so please do not fork that repository unless it is for development reasons.
The contribution workflow is described in CONTRIBUTING.md and useful hints for developers can be found in doc/developer-notes.md.
Testing
Testing and code review is the bottleneck for development; we get more pull requests than we can review and test on short notice. Please be patient and help out by testing other people's pull requests, and remember this is a security-critical project where any mistake might cost people lots of money.
Automated Testing
Developers are strongly encouraged to write unit tests for new code, and to
submit new unit tests for old code. Unit tests can be compiled and run
(assuming they weren't disabled during the generation of the build system) with: ctest. Further details on running
and extending unit tests can be found in /src/test/README.md.
There are also regression and integration tests, written
in Python.
These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py
The CI (Continuous Integration) systems make sure that every pull request is built for Windows, Linux, and macOS, and that unit/sanity tests are run automatically.
Manual Quality Assurance (QA) Testing
Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.
Translations
Changes to translations as well as new translations can be submitted to Bitcoin Core's Transifex page.
Translations are periodically pulled from Transifex and merged into the git repository. See the translation process for details on how this works.
Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.