md-to-html

#!/bin/bash

usage() {
        echo "usage: $0 [options] <project_path> <file1> [<file2> <file3> ...]" >&2
        echo " <project_path>: The path for your project in Gitlab. Eg. " >&2
        echo "   /server-docs/gfs"
        echo " <file1> [<file2> <file3> ...]: The list of markdown files to" >&2
        echo "   convert. Note that these files should end with '.md' so that" >&2
        echo "   this script knows how to name their .html counterparts" >&2
        echo "" >&2
        echo "  options:" >&2
        echo "    -h:     Print this help message" >&2
        echo "" >&2
        echo "    -t <T>: Use <T> as your Gitlab Private Token" >&2
        echo "            default: empty"
        echo "            This value may also be passed with the GITLAB_TOKEN" >&2
        echo "            environment variable (in fact, it's recommended)" >&2
        echo "    -o <O>: Output directory for .html files" >&2
        echo "            default: $(pwd)" >&2
}

OUTPUT_DIR=${OUTPUT_DIR-$(pwd)}
GITLAB_TOKEN=${GITLAB_TOKEN-}

while getopts "ht:" opt; do
        case $opt in
                h)
                        usage
                        exit 0
                        ;;
                t)
                        GITLAB_TOKEN="${OPTARG}"
                        ;;
                o)
                        OUTPUT_DIR="${OPTARG}"
                        ;;
                *)
                        echo "Invalid option: -$OPTARG" >&2
                        exit 1
                ;;
        esac
done
shift "$((OPTIND-1))"

TEMPDIR=""

trap "{ rm -rf \"${TEMPDIR}\"; }" EXIT
TEMPDIR="$(mktemp -d)"

mkdir -p "${OUTPUT_DIR}"

for f in $@; do
        DATA=$(sed 's/\"/\\"/g' $f | sed ':a;N;$!ba;s/\n/\\n/g')
        echo "{\"text\":\"$DATA\", \"gfm\":true, \"project\":\"server-docs/gfs\"}" > "${TEMPDIR}/${f/.md/-request.json}"
        if [ -z "${GITLAB_TOKEN}" ]; then
                curl --header "Content-Type: application/json" --data "@${TEMPDIR}/${f/.md/-request.json}" https://gitlab.triumf.ca/api/v4/markdown | jq -r .html > "${TEMPDIR}/${f/.md/.html}"
        else
                curl --header "Private-Token: ${GITLAB_TOKEN}" --header "Content-Type: application/json" --data "@${TEMPDIR}/${f/.md/-request.json}" https://gitlab.triumf.ca/api/v4/markdown | jq -r .html > "${TEMPDIR}/${f/.md/.html}"
        fi
done

mv ${TEMPDIR}/*.html "${OUTPUT_DIR}"
rm -rf "${TEMPDIR}"
trap - EXIT