Convert markdown files from a directory, into a directory of html files

md-to-html.sh

#!/usr/bin/env bash
set -eu -o pipefail

markdown_dir="${1:-markdown}"
html_dir="${2:-html}"
MARKED_EXEC="${MARKED_EXEC:-yarn exec marked}"

sanitise() {
  cat | sed 's#\.md#.html#g'
}

for f_input in $(find "${markdown_dir}" -type f); do
  f_strip_dir="${f_input#*/}"
  f_strip_ext="${f_strip_dir%.*}"
  f_output="${html_dir}/${f_strip_ext}.html"
  f_output_dir="$(dirname "${f_output}")"

  # make sure target directory exists
  mkdir -p "${f_output_dir}"

  # transform markdown to html
  cat "${f_input}" | sanitise | ${MARKED_EXEC} > "${f_output}"
done