Add pre-commit-run script from project-templates

 && apt-get install -y --no-install-recommends \

    build-essential \

    git \

    python3-dev \

    python3-dev

COPY pre-commit-run.bash /bin/pre-commit-run

#!/bin/bash

# Run Pre-Commit hooks in a GitLab-CI pipeline

# --------------------------------------------

# Copyright 2022 Dom Sekotill <dom.sekotill@kodo.org.uk>

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

#     http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

set -eu

find_lca() {

	local repo=$CI_REPOSITORY_URL

	local current_branch=$1 other_branch=$2

	# See https://stackoverflow.com/questions/63878612/git-fatal-error-in-object-unshallow-sha-1

	# and https://stackoverflow.com/questions/4698759/converting-git-repository-to-shallow/53245223#53245223

	# for background on what `git repack -d` is doing here.

	git repack -qd

	git fetch -q $repo --shallow-exclude=$other_branch $current_branch

	git fetch -q $repo --deepen=1 $current_branch

	FROM_REF=$(git rev-parse -q --revs-only --verify shallow) || unset FROM_REF

}

fetch_ref() {

	git fetch -q $CI_REPOSITORY_URL --depth=1 $1

	FROM_REF=$1

}

if [[ -v CI_COMMIT_BEFORE_SHA ]] && [[ ! $CI_COMMIT_BEFORE_SHA =~ ^0{40}$ ]]; then

	fetch_ref $CI_COMMIT_BEFORE_SHA

elif [[ -v CI_MERGE_REQUEST_TARGET_BRANCH_NAME ]]; then

	find_lca $CI_MERGE_REQUEST_SOURCE_BRANCH_NAME $CI_MERGE_REQUEST_TARGET_BRANCH_NAME

elif [[ -v CI_COMMIT_BRANCH ]] && [[ $CI_COMMIT_BRANCH != $CI_DEFAULT_BRANCH ]]; then

	find_lca $CI_COMMIT_BRANCH $CI_DEFAULT_BRANCH

fi

if [[ -v FROM_REF ]]; then

	PRE_COMMIT_ARGS=( --from-ref=$FROM_REF --to-ref=$CI_COMMIT_SHA )

else

	PRE_COMMIT_ARGS=( --all-files )

fi

pre-commit run "$@" "${PRE_COMMIT_ARGS[@]}"