./pants lint [args]

Run all linters and/or formatters in check mode.

Backend: pants.core
Config section: [lint]

Basic options

only

--lint-only="['<str>', '<str>', ...]"

PANTS_LINT_ONLY

default: []

Only run these linters and skip all others.

The linter names are outputted at the final summary of running this goal, e.g. flake8 and shellcheck. You can also run lint --only=fake to get a list of all activated linters.

You can repeat this option, e.g. lint --only=flake8 --only=shellcheck or lint --only=['flake8', 'shellcheck'].


skip_formatters

--[no-]lint-skip-formatters

PANTS_LINT_SKIP_FORMATTERS

default: False

If true, skip running all formatters in check-only mode.

FYI: when running ./pants fmt lint ::, there should be little performance benefit to using this flag. Pants will reuse the results from fmt when running lint.


Advanced options

batch_size

--lint-batch-size=<int>

PANTS_LINT_BATCH_SIZE

default: 128

The target number of files to be included in each linter batch.

Linter processes are batched for a few reasons:

  1. to avoid OS argument length limits (in processes which don't support argument files)
  2. to support more stable cache keys than would be possible if all files were operated on in a single batch.
  3. to allow for parallelism in linter processes which don't have internal parallelism, or -- if they do support internal parallelism -- to improve scheduling behavior when multiple processes are competing for cores and so internal parallelism cannot be used perfectly.

In order to improve cache hit rates (see 2.), batches are created at stable boundaries, and so this value is only a "target" batch size (rather than an exact value).


Deprecated options

None

Related subsystems

filter


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