generate-codeowners

#!/usr/bin/env bash
set -euo pipefail

CODEOWNERS=".github/CODEOWNERS"
IGNORED_EXCLUDES="${GHB_IGNORED_EXCLUDES:-$(github-build --get_ignored_folders | jq -r '.ignored_folders[]' | sed 's|.*|-not -path "*/&/*"|' | tr '\n' ' ')}"

function check_file()
{
  if [ -z "${1}" ]; then
    echo "ERROR: extension cannot be empty!"
    return 1
  fi

  if [ -z "${2}" ]; then
    echo "ERROR: default owners cannot be empty!"
    exit 1
  fi

  # shellcheck disable=SC2086
  if find . -name "${1}" -not -path "./*-scripts/*" -not -path "./codedeploy/*" -not -path "./bin/*" -not -path "./sbin/*" ${IGNORED_EXCLUDES} | grep -E '.*' &> /dev/null; then
    printf "%-24s %s\n" "${1}" "${2}" >> "./${CODEOWNERS}"
  fi
}

if [ -z "${1}" ]; then
  echo "ERROR: build files owners cannot be empty!"
  exit 1
fi

if [ -z "${2}" ]; then
  echo "ERROR: default owners cannot be empty!"
  exit 1
fi

mkdir -p "$(dirname "${CODEOWNERS}")"

CUSTOM_LINES=""

if [ -f "${CODEOWNERS}" ]; then
  CUSTOM_LINES=$(awk '/# custom start/{flag=1;next}/# custom end/{flag=0}flag' "${CODEOWNERS}")
fi

printf "%s\n\n" "# https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners" > "./${CODEOWNERS}"
printf "%-24s %s\n\n" "*" "${2}" >> "./${CODEOWNERS}"
printf "%s\n\n" "# build/deploy related files" >> "./${CODEOWNERS}"

for file in .aws .bandit .ci .editorconfig .eslintrc.json .flake8 .gitattributes .github .gitignore .gitmodules .golangci.yml .hadolint.yaml .markdownlint-cli2.yaml .pmd.xml .protolint.yaml .rubocop.yml .ruby-version .shellcheckrc .swiftlint.yml .yamllint.yml appspec.yml bin codedeploy etc lib sbin; do
  if [ -d "${file}" ]; then
    printf "%-24s %s\n" "${file}/" "${1}" >> "./${CODEOWNERS}"
  elif [ -f "${file}" ]; then
    printf "%-24s %s\n" "${file}" "${1}" >> "./${CODEOWNERS}"
  fi
done

check_file '*.sh' "${1}"
check_file 'Dockerfile' "${1}"

if [ -n "${CUSTOM_LINES}" ]; then
  printf "\n# custom start\n%s\n# custom end\n" "${CUSTOM_LINES}" >> "./${CODEOWNERS}"
fi