portzap/bin/portzap

#!/bin/sh
set -e

##
# variables
localbase=${LOCALBASE:-$(realpath "$(dirname "$0")"/..)}
libexec="${localbase}"/libexec/portzap
gitdir="/home/_portzap/ports"
giturl="${PORTZAP_CLONEURL:-https://github.com/hardenedbsd/ports}"
installdir="${PORTZAP_INSTALLDIR:-/usr/ports}"
defaultbranch="hardenedbsd/main"
commitfile="${installdir}"/.portzap

##
# functions
# shellcheck source=/dev/null
. "${libexec}"/functions/print.sh

require_dependency()
{
    # shellcheck disable=SC3043
    local dep
    for i in $(seq 1 ${#}); do
        eval "dep=\$${i}"
        if ! which -s "$dep"; then
            printerr "${dep} wasn't found on \$PATH"
            exit 1
        fi
    done
}

##
# main
i=1
while [ "${i}" -le "$#" ]; do
    eval "_portzap_option=\$${i}"
    # shellcheck disable=SC2154
    if [ "${_portzap_option}" = "-v" ]; then
        cat "${localbase}"/share/portzap/VERSION
        exit 0
    fi
    # shellcheck disable=SC2003
    i=$(expr "${i}" + 1);
done

case $1 in
    "setup")
        "${libexec}"/commands/portzap-setup
        ;;
    "teardown")
        "${libexec}"/commands/portzap-teardown
        ;;
    "clone")
        require_dependency git doas
        "${libexec}"/commands/portzap-clone "${giturl}" "${gitdir}" "${defaultbranch}"
        ;;
    "pull")
        require_dependency git doas
        "${libexec}"/commands/portzap-pull "${gitdir}"
        ;;
    "checkout")
        require_dependency git doas
        "${libexec}"/commands/portzap-checkout "${gitdir}" "${2}"
        ;;
     "sh")
        require_dependency doas
        "${libexec}"/commands/portzap-sh "${gitdir}"
        ;;
    "rm")
        "${libexec}"/commands/portzap-rm "${gitdir}" "${installdir}"
        ;;
    "install")
        require_dependency git doas
        "${libexec}"/commands/portzap-install "${gitdir}" "${installdir}" "${commitfile}"
        ;;
    *)
        printf "Usage: portzap COMMAND [OPTIONS]\n"
        printf "\n"
        printf "Setup\n"
        printf "  setup       Setup portzap for the first time\n"
        printf "  teardown    Reverse the changes made by 'portzap setup'\n"
        printf "\n"
        printf "General\n"
        printf "  clone       Clone the HardenedBSD ports tree\n"
        printf "  pull        Pull ports tree updates\n"
        printf "  checkout    Checkout a branch other than the default\n"
        printf "  sh          Run /bin/sh within /home/_portzap/ports/\n"
        printf "  rm          Remove /usr/ports/ and /home/_portzap/ports/\n"
        printf "  install     Install the ports tree into /usr/ports/\n"
        ;;
esac