6912a28f08
bf9597606166323158bbf631137b82d41f39334f doc: add note about snapshot chainstate init (James O'Beirne) e4d799528696c5ede38c257afaffd367917e0de8 test: add testcases for snapshot initialization (James O'Beirne) cced4e7336d93a2dc88e4a61c49941887766bd72 test: move-only-ish: factor out LoadVerifyActivateChainstate() (James O'Beirne) 51fc9241c08a00f1f407f1534853a5cddbbc0a23 test: allow on-disk coins and block tree dbs in tests (James O'Beirne) 3c361391b8f5971eb3c7b620aa7ad9b437cc515e test: add reset_chainstate parameter for snapshot unittests (James O'Beirne) 00b357c215ed900145bd770525a341ba0ed9c027 validation: add ResetChainstates() (James O'Beirne) 3a29dfbfb2c16a50d854f6f81428a68aa9180509 move-only: test: make snapshot chainstate setup reusable (James O'Beirne) 8153bd9247dad3982d54488bcdb3960470315290 blockmanager: avoid undefined behavior during FlushBlockFile (James O'Beirne) ad67ff377c2b271cb4683da2fb25fd295557f731 validation: remove snapshot datadirs upon validation failure (James O'Beirne) 34d159033106cc595cfa852695610bfe419c989c add utilities for deleting on-disk leveldb data (James O'Beirne) 252abd1e8bc5cdf4368ad55e827a873240535b28 init: add utxo snapshot detection (James O'Beirne) f9f1735f139b6a1f1c7fea50717ff90dc4ba2bce validation: rename snapshot chainstate dir (James O'Beirne) d14bebf100aaaa25c7558eeed8b5c536da99885f db: add StoragePath to CDBWrapper/CCoinsViewDB (James O'Beirne) Pull request description: This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11) (parent PR: https://github.com/bitcoin/bitcoin/pull/15606) --- Half of the replacement for #24232. The original PR grew larger than expected throughout the review process. This change adds the ability to initialize a snapshot-based chainstate during init if one is detected on disk. This is of course unused as of now (aside from in unittests) given that we haven't yet enabled actually loading snapshots. Don't be scared! There are some big move-only commits in here. Accompanying changes include: - moving the snapshot coinsdb directory from being called `chainstate_[base blockhash]` to `chainstate_snapshot`, since we only support one snapshot in use at a time. This simplifies some logic, but it necessitates writing that base blockhash out to a file within the coinsdb dir. See [discussion here](https://github.com/bitcoin/bitcoin/pull/24232#discussion_r832762880). - adding a simple fix in `FlushBlockFile()` that avoids a crash when attemping to flush to disk before `LoadBlockIndexDB()` is called, which happens when calling `MaybeRebalanceCaches()` during multiple chainstate init. - improving the unittest to allow testing with on-disk chainstates - necessary to test a simulated restart and re-initialization. ACKs for top commit: naumenkogs: utACK bf9597606166323158bbf631137b82d41f39334f ariard: Code Review ACK bf9597606 ryanofsky: Code review ACK bf9597606166323158bbf631137b82d41f39334f. Changes since last review: rebasing, switching from CAutoFile to AutoFile, adding comments, switching from BOOST_CHECK to Assert in test util, using chainman.GetMutex() in tests, destroying one ChainstateManager before creating a new one in tests fjahr: utACK bf9597606166323158bbf631137b82d41f39334f aureleoules: ACK bf9597606166323158bbf631137b82d41f39334f Tree-SHA512: 15ae75caf19f8d12a12d2647c52897904d27b265a7af6b4ae7b858592eeadb8f9da6c2394b6baebec90adc28742c053e3eb506119577dae7c1e722ebb3b7bcc0
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 in configure) with: make check. 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.