Tested the performance with:
> time cmake -DJSON_SOURCE_PATH=src/secp256k1/src/wycheproof/ecdsa_secp256k1_sha256_bitcoin_test.json -DHEADER_PATH=build/after/ecdsa_secp256k1_sha256_bitcoin_test.json -P cmake/script/GenerateHeaderFromJson.cmake
Before:
> 3.57s user 6.01s system 94% cpu 10.136 total
After:
> 0.17s user 0.01s system 98% cpu 0.187 total
Replaced multiple file writes with a single string template write.
The raw content is first grouped into 8 byte chunks, followed by another regex replace which wraps them in `std::byte`.
Tested the output with `diff -w` and they're the same - only whitespace differences because slightly different source formatting.
Tested the performance with:
> time cmake -DRAW_SOURCE_PATH=src/bench/data/block413567.raw -DHEADER_PATH=build/after/block413567.raw.h -DRAW_NAMESPACE=benchmark::data -P cmake/script/GenerateHeaderFromRaw.cmake
Before:
> 15.41s user 23.06s system 97% cpu 39.593 total
After:
> 0.77s user 0.06s system 97% cpu 0.849 total
5ba03e7d35 build: Use CMake's default permissions in macOS `deploy` target (Hennadii Stepanov)
Pull request description:
This PR ensures that the file permissions in macOS `zip` archives are independent of the user's `umask` value.
Fixes https://github.com/bitcoin/bitcoin/issues/30815.
ACKs for top commit:
fanquake:
ACK 5ba03e7d35 - I'm going to merge this now so we return to usable (comparable) guix builds.
Tree-SHA512: 78f724cd3ffd5c1fd5fc1b4832f1e8154c62723f3de5ac9599f44715cbd08a3dfbb806801411c55069773d2e34c9f8cab25585dbad2f032c36b68dd83cb51847
b07fe666f2 build: Minimize I/O operations in `GenerateHeaderFrom{Json,Raw}.cmake` (Hennadii Stepanov)
Pull request description:
This PR aims to reduce build time by replacing multiple `file(WRITE|APPEND ...)` commands with a single `file(WRITE ...)` command.
Due to differences in implementation (e.g., filesystem design, system calls, caching), a noticeable improvement in build time is observed only on Windows.
Additionally, the code has been refactored to remove the `remainder` local variables.
ACKs for top commit:
sipsorcery:
tACK b07fe666f2
maflcko:
review ACK b07fe666f2
TheCharlatan:
ACK b07fe666f2
Tree-SHA512: 6ed3ae8fe7d8859af38d83918eddf7cb318607787863b95589f4a7a45a36f8c4bd1c01e366078d0515115c121bc857dc63471e52ff26fc49edbc8bb69875e947
This check was added for vcpkg, given how it packages Boost. However, we
don't need to run the check for other platforms, and it's quite slow.
So, scope it to VCPKG. On my machine, this reduces the time to run
`cmake -B build` from ~12 seconds, to ~6 seconds.
Fixes: #30787
faecca9a85 test: Use span for raw data (MarcoFalke)
fac973647d test: Use string_view for json_tests (MarcoFalke)
Pull request description:
The build system converts raw data into a C++ header file for tests.
This change modernizes the code to use the convenience wrappers `std::span` and `std::string_view`, so that redundant copies can be avoided.
ACKs for top commit:
fjahr:
re-ACK faecca9a85
TheCharlatan:
ACK faecca9a85
stickies-v:
ACK faecca9a85
hebasto:
ACK faecca9a85, I have reviewed the code and the generated headers.
Tree-SHA512: 1f4951c54aff11ba27c41fb70f2821bdb79e06ca0abae734b970bd0d64dda9d8cced824a891fd51b3e9d4e5715ee9eb49ed5d369010a45eca7c3bec9f8641235
This change allows to drop brittle sizeof calls in favor of the
std::span::size method.
Other improvements include:
* Use of a namespace to mark test and bench data
* Use of the modern std::byte
* Drop of a no longer used std::vector copy and the bench/data module
Sebastian Falbesoner