bitcoin/test/lint

This folder contains lint scripts.

Running locally

To run linters locally with the same versions as the CI environment, use the included Dockerfile:

DOCKER_BUILDKIT=1 docker build -t bitcoin-linter --file "./ci/lint_imagefile" ./ && docker run --rm -v $(pwd):/bitcoin -it bitcoin-linter

Building the container can be done every time, because it is fast when the result is cached and it prevents issues when the image changes.

test runner

To run all the lint checks in the test runner outside the docker you first need to install the rust toolchain using your package manager of choice or rustup.

Then you can use:

( cd ./test/lint/test_runner/ && cargo fmt && cargo clippy && RUST_BACKTRACE=1 cargo run )

If you wish to run individual lint checks, run the test_runner with --lint=TEST_TO_RUN arguments. If running with cargo run, arguments after -- are passed to the binary you are running e.g.:

( cd ./test/lint/test_runner/ && RUST_BACKTRACE=1 cargo run -- --lint=doc --lint=trailing_whitespace )

To see a list of all individual lint checks available in test_runner, use -h or --help:

( cd ./test/lint/test_runner/ && RUST_BACKTRACE=1 cargo run -- --help )

Dependencies

Lint test	Dependency
lint-python.py	lief
lint-python.py	mypy
lint-python.py	pyzmq
lint-python-dead-code.py	vulture
lint-shell.py	ShellCheck
lint-spelling.py	codespell
py_lint	ruff
markdown link check	mlc

In use versions and install instructions are available in the CI setup.

Please be aware that on Linux distributions all dependencies are usually available as packages, but could be outdated.

Running the tests

Individual tests can be run by directly calling the test script, e.g.:

test/lint/lint-files.py

check-doc.py

Check for missing documentation of command line options.

commit-script-check.sh

Verification of scripted diffs. Scripted diffs are only assumed to run on the latest LTS release of Ubuntu. Running them on other operating systems might require installing GNU tools, such as GNU sed.

git-subtree-check.sh

Run this script from the root of the repository to verify that a subtree matches the contents of the commit it claims to have been updated to.

Usage: test/lint/git-subtree-check.sh [-r] DIR [COMMIT]
       test/lint/git-subtree-check.sh -?

• DIR is the prefix within the repository to check.
• COMMIT is the commit to check, if it is not provided, HEAD will be used.
• -r checks that subtree commit is present in repository.

To do a full check with -r, make sure that you have fetched the upstream repository branch in which the subtree is maintained:

• for src/secp256k1: https://github.com/bitcoin-core/secp256k1.git (branch master)
• for src/leveldb: https://github.com/bitcoin-core/leveldb-subtree.git (branch bitcoin-fork)
• for src/crypto/ctaes: https://github.com/bitcoin-core/ctaes.git (branch master)
• for src/crc32c: https://github.com/bitcoin-core/crc32c-subtree.git (branch bitcoin-fork)
• for src/minisketch: https://github.com/sipa/minisketch.git (branch master)

To do so, add the upstream repository as remote:

git remote add --fetch secp256k1 https://github.com/bitcoin-core/secp256k1.git

lint_ignore_dirs.py

Add list of common directories to ignore when running tests