carbon-lang/.pre-commit-config.yaml

# Part of the Carbon Language project, under the Apache License v2.0 with LLVM
# Exceptions. See /LICENSE for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

# Update versions with:
#   pre-commit autoupdate --freeze
# See https://pre-commit.com for more information
# See https://pre-commit.com/hooks.html for more hooks

default_language_version:
  python: python3 # Defaults to python2, so override it.

repos:
  - repo: https://github.com/pre-commit/pre-commit-hooks
    rev: 38b88246ccc552bffaaf54259d064beeee434539 # frozen: v4.0.1
    hooks:
      - id: check-added-large-files
      - id: check-case-conflict
      - id: check-executables-have-shebangs
      - id: check-merge-conflict
      - id: check-symlinks
        exclude: ^bazel-(clang-toolchain|execroot)$
      - id: check-yaml
      - id: detect-private-key
      - id: end-of-file-fixer
      - id: mixed-line-ending
        args: ['--fix=lf']
      - id: trailing-whitespace
        exclude: '^(.*/testdata/.*\.golden)$'
  - repo: https://github.com/google/pre-commit-tool-hooks
    rev: 1d04a2848ac54d64bd6474ccec69aac45fa88414 # frozen: v1.1.1
    hooks:
      - id: check-copyright
        args:
          - --copyright
          - |+
            Part of the Carbon Language project, under the Apache License v2.0 with LLVM
            Exceptions. See /LICENSE for license information.
            SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
          - --custom_format
          - '\.carbon$'
          - ''
          - '// '
          - ''
          - --custom_format
          - '\.lpp$'
          - '/*'
          - ''
          - '*/'
          - --custom_format
          - '\.ypp$'
          - ''
          - '// '
          - ''
          - --custom_format
          - '\.l$'
          - '/*'
          - ''
          - '*/'
          - --custom_format
          - '\.y$'
          - '/*'
          - ''
          - '*/'
        exclude: |
          (?x)^(
              .bazelversion|
              compile_flags.txt|
              third_party/examples/.*/compile_flags.carbon.txt|
              .*\.def|
              .*\.svg|
              .*/testdata/.*\.golden
          )$
      - id: check-google-doc-style
      - id: markdown-toc
  - repo: https://github.com/codespell-project/codespell
    rev: 01da43d753cdff4ea7dff952b4f5317450af31e3 # frozen: v2.1.0
    hooks:
      - id: codespell
        args: ['-I', '.codespell_ignore', '--uri-ignore-words-list', '*']
  - repo: local
    hooks:
      - id: executable-semantics-format-grammar
        name: Format the executable_semantics grammar file
        entry: executable_semantics/syntax/format_grammar.py
        language: python
        files: ^executable_semantics/syntax/parser.ypp$
        pass_filenames: false
      - id: proposal-list
        name: Update list of proposals
        description: Updates the list of proposals in proposals/README.md
        entry: proposals/scripts/update_proposal_list.py
        language: python
        files: ^proposals/(README|p.*)\.md$
        pass_filenames: false
  # Formatters should be run late so that they can re-format any prior changes.
  - repo: https://github.com/psf/black
    rev: a8b4665e7d6eb945c47820adb1a3f8b006adce0c # frozen: 21.8b0
    hooks:
      - id: black
  - repo: https://github.com/jlebar/pre-commit-hooks.git
    rev: 2f588005ab7492a82f341c03d0418a155c46100d
    hooks:
      - id: bazel-buildifier
      - id: clang-format-whole-file
        types: [c++]
  - repo: https://github.com/pre-commit/mirrors-prettier
    rev: 9c89e53b2d2fd9dac7703623c974133fe3b0e8c4 # frozen: v2.4.0
    hooks:
      - id: prettier
  # Run linters last, as formatters and other checks may fix issues.
  - repo: https://github.com/PyCQA/flake8
    rev: dcd740bc0ebaf2b3d43e59a0060d157c97de13f3 # frozen: 3.9.2
    hooks:
      - id: flake8

# Most third-party code is in submodules; local commits are excluded here.
# We fully exclude fuzzer corpus directories as they are generated binary data.
exclude: |
  (?x)^(
      third_party/examples/.*/carbon/.*|
      .*/fuzzer_corpus/.*
  )$