qusal/scripts/markdown-lint.sh

#!/bin/sh

## SPDX-FileCopyrightText: 2024 Benjamin Grande M. S. <ben.grande.b@gmail.com>
##
## SPDX-License-Identifier: AGPL-3.0-or-later

# shellcheck disable=SC2086
set -eu

command -v git >/dev/null ||
  { printf "Missing program: git\n" >&2; exit 1; }
cd "$(git rev-parse --show-toplevel)" || exit 1
./scripts/requires-program.sh mdl

extra_files_rules="~MD002,~MD012,~MD022,~MD032,~MD041"

find_tool="find"
if command -v fd; then
  find_tool="fd"
elif command -v fdfind >/dev/null; then
  find_tool="fdfind"
fi

if test -n "${1-}"; then
  files=""
  extra_files=""
  for f in "$@"; do
    test -f "$f" || continue
    extension="${f##*.}"
    case "$extension" in
      md)
        case "${f}" in
          .github/*) extra_files="$extra_files $f"; continue;;
        esac
        files="$files $f";;
      *)
        continue
        ;;
    esac
  done
  if test -n "${extra_files}"; then
    mdl --rules ${extra_files_rules} ${extra_files}
  fi
  test -n "$files" || exit 0
  exec mdl ${files}
fi

case "${find_tool}" in
  fd|fdfind)
    files="$(${find_tool} . --hidden --exclude .github --type=f --extension=md)"
    extra_files="$(${find_tool} . --hidden --type=f --extension=md .github)"
    ;;
  find)
    files="$(find . -not -path './.github/*' -type f -name "*.md")"
    extra_files="$(find .github -type f -name "*.md")"
    ;;
esac

if test -n "${extra_files}"; then
  mdl --rules ${extra_files_rules} ${extra_files}
fi
exec mdl ${files}