Add Pre-Commit checks

stages:

- check

- build

- deploy

  - when: always

Checks:

  stage: check

  image: docker.kodo.org.uk/ci-images/pre-commit:2.15.0-1

  rules:

  - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH

    variables:

      FROM_REF: $CI_COMMIT_BEFORE_SHA

  - if: $CI_PIPELINE_SOURCE == "push"

    variables:

      FETCH: $CI_DEFAULT_BRANCH

      FROM_REF: $CI_DEFAULT_BRANCH

  - if: $CI_PIPELINE_SOURCE == "merge_request_event"

    variables:

      FROM_REF: $CI_MERGE_REQUEST_TARGET_BRANCH_SHA

  variables:

    PRE_COMMIT_HOME: $CI_PROJECT_DIR/pre-commit

  cache:

    key: $CI_JOB_NAME

    paths: [pre-commit]

  script:

  - test -n "${FETCH-}" && git fetch origin $FETCH:$FETCH -f

  - pre-commit run

    --hook-stage=commit

    --from-ref=$FROM_REF

    --to-ref=$CI_COMMIT_SHA

.build:

  stage: build

  image: docker.kodo.org.uk/ci-images/buildkit/buildctl:latest

default_stages: [commit]

repos:

- repo: meta

  hooks:

  - id: check-hooks-apply

  - id: check-useless-excludes

- repo: https://github.com/pre-commit/pre-commit-hooks

  rev: v3.4.0

  hooks:

  - id: check-added-large-files

  - id: check-case-conflict

  - id: check-merge-conflict

  - id: check-yaml

    args: [--allow-multiple-documents]

  - id: destroyed-symlinks

  - id: end-of-file-fixer

    stages: [commit, manual]

  - id: fix-byte-order-marker

  - id: mixed-line-ending

    args: [--fix=lf]

    stages: [commit, manual]

  - id: trailing-whitespace

    exclude_types: [markdown, plain-text]

    stages: [commit, manual]

- repo: https://github.com/jorisroovers/gitlint

  rev: v0.15.0

  hooks:

  - id: gitlint

- repo: https://code.kodo.org.uk/dom/pre-commit-hooks

  rev: v0.6

  hooks:

  - id: check-executable-modes

  - id: check-for-squash

  - id: protect-first-parent