Ava Chow f640b323bd
Merge bitcoin/bitcoin#30723: lint: Speed up and fix flake8 checks
fafdb7df34507eee735893aa871da6ae529e6372 lint: Speed up flake8 checks (MarcoFalke)
faf17df7fb88590d936d10c471a9ea6a2ce4454d lint: Document missing py_lint dependency (MarcoFalke)
faebeb828f5f0ec68d90e7f76add66bc562f6fa3 lint: Remove python whitespace and shadowing lint rules (MarcoFalke)
77770478355ce6c1ab077dbc12ec898875ec5620 lint: Remove python lint rules that are SyntaxError (MarcoFalke)
faaf3e53f09c73278e36674db0af14a262f0bd94 test: [refactor] Fix F841 flake8 (MarcoFalke)
444421db69539b74077306b6d0cb23e82afeb891 test: [refactor] Fix E714 pycodestyle (MarcoFalke)

Pull request description:

  The checks have many issues:

  * Some checks that could in theory hide bugs are not applied -> Fix them and apply them going forward
  * Some checks are redundant Python 2 checks, or of low value -> Remove them
  * The checks are slow -> Speed them up from ~10 seconds to about ~20 milliseconds

ACKs for top commit:
  davidgumberg:
    review and tested reACK fafdb7df34
  kevkevinpal:
    ACK [fafdb7d](fafdb7df34)
  achow101:
    ACK fafdb7df34507eee735893aa871da6ae529e6372

Tree-SHA512: a0488b722cfaf7071bd6848cd3be002e0b6c38af80d8b5cbb08613c0b174ef63277289f960db8ac31adb09fe563a4973203b8fb10b83cbcfdc6f0ef39bd04410
2024-09-04 15:35:52 -04:00
..
2024-08-29 07:03:42 +02:00
2024-08-29 07:03:42 +02:00
2024-04-11 14:03:37 +02:00
2024-08-29 07:03:42 +02:00

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:

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