Contents
This directory contains tools for developers working on this repository.
deterministic-fuzz-coverage
A tool to check for non-determinism in fuzz coverage. To get the help, run:
cargo run --manifest-path ./contrib/devtools/deterministic-fuzz-coverage/Cargo.toml -- --help
To execute the tool, compilation has to be done with the build options:
-DCMAKE_C_COMPILER='clang' -DCMAKE_CXX_COMPILER='clang++' -DBUILD_FOR_FUZZING=ON -DCMAKE_CXX_FLAGS='-fprofile-instr-generate -fcoverage-mapping'
Both llvm-profdata and llvm-cov must be installed. Also, the qa-assets repository must have been cloned. Finally, a fuzz target has to be picked before running the tool:
cargo run --manifest-path ./contrib/devtools/deterministic-fuzz-coverage/Cargo.toml -- $PWD/build_dir $PWD/qa-assets/fuzz_corpora fuzz_target_name
deterministic-unittest-coverage
A tool to check for non-determinism in unit-test coverage. To get the help, run:
cargo run --manifest-path ./contrib/devtools/deterministic-unittest-coverage/Cargo.toml -- --help
To execute the tool, compilation has to be done with the build options:
-DCMAKE_C_COMPILER='clang' -DCMAKE_CXX_COMPILER='clang++' -DCMAKE_CXX_FLAGS='-fprofile-instr-generate -fcoverage-mapping'
Both llvm-profdata and llvm-cov must be installed.
cargo run --manifest-path ./contrib/devtools/deterministic-unittest-coverage/Cargo.toml -- $PWD/build_dir <boost unittest filter>
clang-format-diff.py
A script to format unified git diffs according to .clang-format.
Requires clang-format, installed e.g. via brew install clang-format on macOS,
or sudo apt install clang-format on Debian/Ubuntu.
For instance, to format the last commit with 0 lines of context, the script should be called from the git root folder as follows.
git diff -U0 HEAD~1.. | ./contrib/devtools/clang-format-diff.py -p1 -i -v
copyright_header.py
Provides utilities for managing copyright headers of The Bitcoin Core developers in repository source files. It has three subcommands:
$ ./copyright_header.py report <base_directory> [verbose]
$ ./copyright_header.py update <base_directory>
$ ./copyright_header.py insert <file>
Running these subcommands without arguments displays a usage string.
copyright_header.py report <base_directory> [verbose]
Produces a report of all copyright header notices found inside the source files
of a repository. Useful to quickly visualize the state of the headers.
Specifying verbose will list the full filenames of files of each category.
copyright_header.py update <base_directory> [verbose]
Updates all the copyright headers of The Bitcoin Core developers which were
changed in a year more recent than is listed. For example:
// Copyright (c) <firstYear>-<lastYear> The Bitcoin Core developers
will be updated to:
// Copyright (c) <firstYear>-<lastModifiedYear> The Bitcoin Core developers
where <lastModifiedYear> is obtained from the git log history.
This subcommand also handles copyright headers that have only a single year. In those cases:
// Copyright (c) <year> The Bitcoin Core developers
will be updated to:
// Copyright (c) <year>-<lastModifiedYear> The Bitcoin Core developers
where the update is appropriate.
copyright_header.py insert <file>
Inserts a copyright header for The Bitcoin Core developers at the top of the
file in either Python or C++ style as determined by the file extension. If the
file is a Python file and it has #! starting the first line, the header is
inserted in the line below it.
The copyright dates will be set to be <year_introduced>-<current_year> where
<year_introduced> is according to the git log history. If
<year_introduced> is equal to <current_year>, it will be set as a single
year rather than two hyphenated years.
If the file already has a copyright for The Bitcoin Core developers, the
script will exit.
gen-manpages.py
A small script to automatically create manpages in ../../doc/man by running the release binaries with the -help option. This requires help2man which can be found at: https://www.gnu.org/software/help2man/
This script assumes a build directory named build as suggested by example build documentation.
To use it with a different build directory, set BUILDDIR.
For example:
BUILDDIR=$PWD/my-build-dir contrib/devtools/gen-manpages.py
headerssync-params.py
A script to generate optimal parameters for the headerssync module (src/headerssync.cpp). It takes no command-line options, as all its configuration is set at the top of the file. It runs many times faster inside PyPy. Invocation:
pypy3 contrib/devtools/headerssync-params.py
gen-bitcoin-conf.sh
Generates a bitcoin.conf file in share/examples/ by parsing the output from bitcoind --help. This script is run during the
release process to include a bitcoin.conf with the release binaries and can also be run by users to generate a file locally.
When generating a file as part of the release process, make sure to commit the changes after running the script.
This script assumes a build directory named build as suggested by example build documentation.
To use it with a different build directory, set BUILDDIR.
For example:
BUILDDIR=$PWD/my-build-dir contrib/devtools/gen-bitcoin-conf.sh
circular-dependencies.py
Run this script from the root of the source tree (src/) to find circular dependencies in the source code.
This looks only at which files include other files, treating the .cpp and .h file as one unit.
Example usage:
cd .../src
../contrib/devtools/circular-dependencies.py {*,*/*,*/*/*}.{h,cpp}