3ace3a17c9
07269321f38e46e9e02f16d7cd135ea90692638d build: remove Boost::system usage (fanquake)
b87f9c5edf3895df9650131fcf8551c3ad1d7301 build: remove boost::filesystem usage (Kiminuo)
41d7166c8a598b604aad6c6b1d88ad46e23be247 refactor: replace boost::filesystem with std::filesystem (Kiminuo)
ffc89d1f21258553c0087b774a9ea1ce84139d4f build: add support for std::filesystem (fanquake)
Pull request description:
This PR replaces our Boost Filesystem usage with [`std::filesystem`](https://en.cppreference.com/w/cpp/filesystem) and includes dropping Boost System as a dependency. It includes a squashed down version of the changes from #19245.
[A macro has been added](7002c4ade0), modelling how we check for `-latomic` to facilitate linking with `-lstdc++fs` when required. This is ~GCC < 9.1 & ~Clang < 9.0, however not always. i.e you could be using Clang 7 on top of a GCC 9 installation (i.e Ubuntu Focal) and use `<filesystem>` without passing any additional arguments. I've tested this with GCC 8 on Bionic, Clang 7 on Focal & with Apple Clang 12.0.0 on macOS.
Guix build:
```bash
bash-5.1# find guix-build-$(git rev-parse --short=12 HEAD)/output/ -type f -print0 | env LC_ALL=C sort -z | xargs -r0 sha256sum
c1f9b326f9be4140f00cebeae5ff8de428a2fb8ecced539fcc36c53f53bfecf4 guix-build-07269321f38e/output/aarch64-linux-gnu/SHA256SUMS.part
b44aca3bcf5ea92a3a6c48c24d6f85576f425f59b73528d4d00c20e950cf2128 guix-build-07269321f38e/output/aarch64-linux-gnu/bitcoin-07269321f38e-aarch64-linux-gnu-debug.tar.gz
27a5553f7bd14797293fc40c5fb131c91e98a61d5481a283f13a1d0497eb5ed8 guix-build-07269321f38e/output/aarch64-linux-gnu/bitcoin-07269321f38e-aarch64-linux-gnu.tar.gz
99e55a88823f6095864a09c9eaa824e24d9ec527380eb394f751c7205b930f69 guix-build-07269321f38e/output/arm-linux-gnueabihf/SHA256SUMS.part
b720b2724fa47fde584f58ed3b587f1d1183523540777fd367ab7e582605cfea guix-build-07269321f38e/output/arm-linux-gnueabihf/bitcoin-07269321f38e-arm-linux-gnueabihf-debug.tar.gz
c19c247f4e9e0d7f888ac8ba9de1c12d382f48fa828a685d4fe02818a18abd1f guix-build-07269321f38e/output/arm-linux-gnueabihf/bitcoin-07269321f38e-arm-linux-gnueabihf.tar.gz
55b49ccb38de03bb95101354a16fd8d2190abede5ccc0d9b00b40c0cd526a2f6 guix-build-07269321f38e/output/arm64-apple-darwin/SHA256SUMS.part
baa44752470a6be9acae1c2f8fd1b9bc37afb00971787ea11fbaeddc9ab7c4aa guix-build-07269321f38e/output/arm64-apple-darwin/bitcoin-07269321f38e-arm64-apple-darwin.tar.gz
ad7df4d8026d5bcce1321cdccc2e1820e8a8bb7e1064ed16e20a7ea354057fd2 guix-build-07269321f38e/output/arm64-apple-darwin/bitcoin-07269321f38e-osx-unsigned.dmg
f342066dc34a14d67c47779a2413a14633a996e8e7ddca89ae0184e23ef99efd guix-build-07269321f38e/output/arm64-apple-darwin/bitcoin-07269321f38e-osx-unsigned.tar.gz
f6905346a5d48f57805fb062d0247ab5007c89047070a0b3125941dd1a2b8aa6 guix-build-07269321f38e/output/dist-archive/bitcoin-07269321f38e.tar.gz
a1f6c4b2b118dbd89770801f0bcffd2218b82df408cd227e34c40493469bb7a2 guix-build-07269321f38e/output/powerpc64-linux-gnu/SHA256SUMS.part
ba8359426e523bf013d93579c1bedc57380214c8170a9743b64ec1a8a3bbccbf guix-build-07269321f38e/output/powerpc64-linux-gnu/bitcoin-07269321f38e-powerpc64-linux-gnu-debug.tar.gz
b0bb500c274a683ea28ecbc1e8f18c618a9f8acb00045f80ae43c515288402c0 guix-build-07269321f38e/output/powerpc64-linux-gnu/bitcoin-07269321f38e-powerpc64-linux-gnu.tar.gz
38c85e9589e092cd3aa08996aa383c0ccd5c73208943389741355a6eb7f72537 guix-build-07269321f38e/output/powerpc64le-linux-gnu/SHA256SUMS.part
50fcba7942ff48d91e84c093fda0affc17e46167fe1d5137c6e14c5c41f289d1 guix-build-07269321f38e/output/powerpc64le-linux-gnu/bitcoin-07269321f38e-powerpc64le-linux-gnu-debug.tar.gz
fa08ef1ceca072e014faa95ffee945954b2976fa28f90926b87ab0e5f15f8ca5 guix-build-07269321f38e/output/powerpc64le-linux-gnu/bitcoin-07269321f38e-powerpc64le-linux-gnu.tar.gz
e52dd80a9c306d6aeb544acaa1f4ed560b6b92b5184764a05026d45451aa2e94 guix-build-07269321f38e/output/riscv64-linux-gnu/SHA256SUMS.part
864e0a16c485b4159cec3ee0a83b046f1b1c3bc821670011c5ac5cd09ddfb91f guix-build-07269321f38e/output/riscv64-linux-gnu/bitcoin-07269321f38e-riscv64-linux-gnu-debug.tar.gz
4a061172181322e7ad0cf06405bf74f4c8683eaba3a67ecfd46158cba7627f62 guix-build-07269321f38e/output/riscv64-linux-gnu/bitcoin-07269321f38e-riscv64-linux-gnu.tar.gz
876d82251853205420dffe7237523fc6ee3d09f78bf74cc03dc71f548446f335 guix-build-07269321f38e/output/x86_64-apple-darwin/SHA256SUMS.part
3f82b2e62c60eee68e7b8fc28e4792e069e3c2cd780ee2d67290ca422cdbc47c guix-build-07269321f38e/output/x86_64-apple-darwin/bitcoin-07269321f38e-osx-unsigned.dmg
4ccdd4c410cac9d627e54ce83ee4816608681735da3cb93c60c5eb70ca86337a guix-build-07269321f38e/output/x86_64-apple-darwin/bitcoin-07269321f38e-osx-unsigned.tar.gz
2179d36b2f60e28c15262d4e51f27465b5ae077f60e550345e125683ca611066 guix-build-07269321f38e/output/x86_64-apple-darwin/bitcoin-07269321f38e-osx64.tar.gz
b377e72fe84b6a982b8d414d60c85e6319523dff50dc852a0ba907f6d850ddd0 guix-build-07269321f38e/output/x86_64-linux-gnu/SHA256SUMS.part
8547e2f582ce05ae6a6224793b64efb2eb63f2816bf0bed5d53fcc4786274597 guix-build-07269321f38e/output/x86_64-linux-gnu/bitcoin-07269321f38e-x86_64-linux-gnu-debug.tar.gz
83b64805aa39f31a6fa4c2ed41e029c3be084e6dea06b90fac1ebca5c95bce29 guix-build-07269321f38e/output/x86_64-linux-gnu/bitcoin-07269321f38e-x86_64-linux-gnu.tar.gz
```
ACKs for top commit:
laanwj:
Code review ACK 07269321f38e46e9e02f16d7cd135ea90692638d
MarcoFalke:
Concept ACK 07269321f38e46e9e02f16d7cd135ea90692638d 🎀
hebasto:
ACK 07269321f38e46e9e02f16d7cd135ea90692638d
Tree-SHA512: 1f11614467d2013ed799f23c1c14716570f4c798f231671c731a69c7773ef32a0aa2acc69d4ac2f1f176ef6f160f56566c6bd75c9c059a0e82ab4c58d2b2a750
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.