67eae69f3f
182de7ba10811ec39e24ec5bec7cd2119f776f2f ci: update minimum compiler requirements for std::filesystem (fanquake) 04f5bafb7b7d3f86a5db3047a77591e0ec272e68 doc: update minimum compiler requirements for std::filesystem (fanquake) Pull request description: This increases the minimum required compiler versions to Clang 7 and GCC 8.1. This has been split out of #20744 (migration to `std::filesystem`), as it's also a requirement for some other changes, such as #20452 or #20457 which want to make use of `std::from_chars`. As well as #20435, which is also `std::filesystem` related. Given that the `std::filesystem` changes are moving ahead, splitting out this change to let other PRs take advantage of the new requirements seems worthwhile. Clang 7 has been available in Debian since [Stretch (oldoldstable)](https://packages.debian.org/stretch/clang-7) and in Ubuntu since [Bionic (18.04)](https://packages.ubuntu.com/bionic-updates/clang-7). GCC 8 has been available in Debian since [Buster (oldstable)](https://packages.debian.org/buster/gcc) and in Ubuntu since [Bionic (18.04)](https://packages.ubuntu.com/bionic/gcc-8). CentOS 8 also packages GCC 8. The CI changes here give us one build with GCC 8, and another using Clang 7 on top of libc++. Note that the minimum required libc++ in dependencies.md is unchanged as, at least for `<filesystem>`, and the `*_chars` use cases, libc++ 7 [should be sufficient](https://en.cppreference.com/w/cpp/compiler_support/17). I've tested that building `<filesystem>` code using Clang 7 & libc++ works. i.e `clang++-7 -std=c++17 fs.cpp -stdlib=libc++ -lc++fs`. Also that building `<filesystem>` code with Clang 7 and libstdc++ 8 works. i.e `clang++-7 -std=c++17 fs.cpp -lstdc++fs`. ACKs for top commit: MarcoFalke: review ACK 182de7ba10811ec39e24ec5bec7cd2119f776f2f Tree-SHA512: 5bc151c4be58005711eed6bd8a091f3417f75a0218c11c08cffff9d749edadd965726bb7856a8e693e96e69ed0596989cda1aac4b29fb6d30705b1687a5b3363
Bitcoin Core integration/staging tree
For an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/.
Further information about Bitcoin Core is available in the doc folder.
What is Bitcoin?
Bitcoin is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Bitcoin Core is the name of open source software which enables the use of this currency.
For more information read the original Bitcoin whitepaper.
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.