#!/bin/bash
# -*- coding: utf-8; mode: sh; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:ft=sh:et:sw=4:ts=4:sts=4

# Note:
# This script is sourced by the mpbb wrapper script.
# Do not execute this directly!

mirror-distfiles-usage() {
    # "prog" is defined in mpbb-help.
    # shellcheck disable=SC2154
    cat <<EOF
usage: $prog [<global opts>] mirror-distfiles <port> [<port2> [...]]

Mirror the distfiles of each given port and their recursive dependencies.

Options:

  --distfiles-dir=<URL>
    A directory for storing the distfiles. Defaults to the
    \`var/macports/distfiles' subdirectory of the \`--prefix' directory. If
    changed, deletes the \`var/macports/distfiles' directory and replaces it
    with a symlink to the specified directory.

Run \`$prog help' for global options and a list of other subcommands.
EOF
}

mirror-distfiles() {
    local args
    parseopt distfiles-dir: "$@" || return
    default_distfiles_dir="${option_prefix}"/var/macports/distfiles
    : "${option_distfiles_dir=${default_distfiles_dir}}"
    set -- ${args+"${args[@]}"}

    if [ ! -d "${option_distfiles_dir}" ]; then
        err "Distfiles directory \`${option_distfiles_dir}' does not exist"
        return 1
    fi

    if [ $# -le 0 ]; then
        err "Must specify at least one port"
        return 1
    fi

    if [ "${option_distfiles_dir}" = "${default_distfiles_dir}" ]; then
        if [ -L "${default_distfiles_dir}" ]; then
            msg "Removing symlink \`${default_distfiles_dir}' and creating directory"
            rm -f "${default_distfiles_dir}"
            mkdir "${default_distfiles_dir}" || return
        fi
    else
        make_symlink=0
        if [ -L "${default_distfiles_dir}" ]; then
            distfiles_link_target="$(readlink -n "${default_distfiles_dir}")"
            if [ "${distfiles_link_target}" != "${option_distfiles_dir}" ]; then
                msg "Changing \`${default_distfiles_dir}' symlink from \`${distfiles_link_target}' to \`${option_distfiles_dir}'"
                rm -f "${default_distfiles_dir}"
                make_symlink=1
            fi
        elif [ -d "${default_distfiles_dir}" ]; then
            msg "Removing directory \`${default_distfiles_dir}' and replacing it with a symlink to \`${option_distfiles_dir}'"
            rm -rvf "${default_distfiles_dir}" | sed 's/^/Deleting /'
            make_symlink=1
        else
            msg "Making \`${default_distfiles_dir}' a symlink to \`${option_distfiles_dir}'"
            make_symlink=1
        fi
        if [ ${make_symlink} -eq 1 ]; then
            ln -s "${option_distfiles_dir}" "${default_distfiles_dir}" || return
        fi
    fi

    # Mirror the distfiles.
    # $option_prefix is set by mpbb
    # shellcheck disable=SC2154
    "${option_prefix}/bin/port-tclsh" "${thisdir}/tools/mirror-multi.tcl" -c "${option_work_dir}/mirrorcache" "$@"
    #"${option_prefix}/bin/port" -p mirror "$@" $("${option_prefix}/bin/port" -pq rdeps --index "$@" | sed -E -e '/^--$/d' -e 's/^[[:space:]]+//' | sort -u)
}