#!/usr/bin/env bash

quilt-ensure() {
    command -v quilt >/dev/null || {
        "${REPO_ROOT}/projects/quilt/ossbuild-quilt.bash"
    }
}


_main_() {
    declare -g REPO_ROOT
    REPO_ROOT="$(realpath "$(dirname "${BASH_SOURCE[-1]}")/..")"
    source "${REPO_ROOT}/lib/ossbuild-common.bash"

    quilt-ensure
    shopt -s globstar

    ossbuild-pushd "${REPO_ROOT}/quilt/qnap"
    ossbuild-cmd quilt push -a || true

    local dst='root/' src p
    local -a cmd=('cp' '-uv' '--target' "${dst}" '--parents')
    for src in */; do
        [ "${src}" = 'patches/' ] || {
            for p in "${src}"**; do
                [ -f "${p}" ] || continue
                #echo "p:'${p}'/'${dst}${p}'"
                if [ -f "${dst}${p}" ] && ! diff -q "${dst}${p}" "${p}" >/dev/null; then
                    if [ -w "${dst}${p}" ]; then
                        ossbuild-cmd "${cmd[@]}" "${p}"
                    else
                        ossbuild-cmd sudo "${cmd[@]}" "${p}"
                    fi
                fi
            done
        }
    done

    ossbuild-cmd quilt pop -a
    ossbuild-popd
}


_main_ "${@}"