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 && pre-commit run -a
# 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: 8fe62d14e0b4d7d845a7022c5c2c3ae41bdd3f26 # frozen: v4.1.0
    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)$'
  - repo: https://github.com/mattlqx/pre-commit-search-and-replace
    rev: 417c99dafb534d7517d9abc17f0293de3c915a72 # frozen: v1.0.5
    hooks:
      - id: search-and-replace
        files: '\.md$'
  - repo: https://github.com/google/pre-commit-tool-hooks
    rev: cb78d9293306d9f737c64d9702bbaa88e157caaa # frozen: v1.2.2
    hooks:
      - id: check-google-doc-style
      - id: markdown-toc
  - 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/(lexer.lpp|parser.ypp)$
        pass_filenames: false
      - id: fix-cc-deps
        name: Fix missing C++ deps
        entry: scripts/fix_cc_deps.py
        language: python
        files: ^.*/(BUILD|[^/]+\.(h|cpp))$
        pass_filenames: false
  # Formatters should be run late so that they can re-format any prior changes.
  - repo: https://github.com/psf/black
    rev: f1d4e742c91dd5179d742b0db9293c4472b765f8 # frozen: 21.12b0
    hooks:
      - id: black
  - repo: https://github.com/jlebar/pre-commit-hooks.git
    rev: fb5e481f35f5a9b32a06ccfc28b8d6dda4525f75
    hooks:
      - id: bazel-buildifier
      - id: clang-format-whole-file
        types: [c++]
  - repo: https://github.com/pre-commit/mirrors-prettier
    rev: ea782651a7e32f40a3d13b76c79d5a2474ee8723 # frozen: v2.5.1
    hooks:
      - id: prettier
  # Run linters last, as formatters and other checks may fix issues.
  - repo: local
    hooks:
      - id: forbid-llvm-googletest
        name: Checks for deps on LLVM's version of GoogleTest
        entry: scripts/forbid_llvm_googletest.py
        language: python
        files: ^.*/BUILD$
        pass_filenames: false
  - repo: https://github.com/PyCQA/flake8
    rev: cbeb4c9c4137cff1568659fcc48e8b85cddd0c8d # frozen: 4.0.1
    hooks:
      - id: flake8
  - 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: https://github.com/google/pre-commit-tool-hooks
    rev: cb78d9293306d9f737c64d9702bbaa88e157caaa # frozen: v1.2.2
    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-links
        name: Check links in non-proposal files
        exclude: ^proposals/.*$
      - id: check-links
        name: Check links in proposal files
        args: ['--anchors-only']
        files: ^proposals/.*$

# 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/.*
  )$