shellfu-bash-saturnin/src/bin/saturnin.skel

#!/bin/bash

. $(ffoom path) || exit 3

ffoo import exit
ffoo import inigrep
ffoo import pretty

#
# =====BEGIN BUILT PART=====
#

FFOO_INIGREP_PATH="$(
    inigrep__mkpath \
        __SATURNIN_CONFIG_USER__/ini.d \
        __SATURNIN_CONFIG_USER__ \
        __SATURNIN_CONFIG_LOCAL__ \
        __SATURNIN_SHARE__/ini.d
)"

FFOO_PATH="__SATURNIN_FFOO_DIR__"
FFOO_PRETTY_USAGE="subcommand"
SATURNIN_CACHE_HOME="__SATURNIN_CACHE_HOME__"
SATURNIN_LIBEXEC="__SATURNIN_LIBEXEC__"
SATURNIN_VERSION="__VERSION__"

#
# =====END BUILT PART=====
#

export FFOO_INIGREP_PATH FFOO_PATH FFOO_PRETTY_USAGE \
       SATURNIN_VERSION SATURNIN_CACHE_HOME

usage() {
    mkusage "[-d|-v] command [args...]" \
            "help" \
            "--version"
}

print_help() {
    echo ""
    echo "built-in sub-commands:"
    echo ""
    echo "    conf"
    echo "    help"
    echo ""
    echo "installed sub-commands:"
    echo ""
    ls_subcommands | sed -e 's/^/    /'
    return "$FFOO_EXIT_OK"
}

ls_subcommands() {
    find "$SATURNIN_LIBEXEC" \
        -mindepth 1 \
        -maxdepth 1 \
        -executable \
      | sed -e 's/.*saturnin-//' \
      | sort
}

version_info() {
    echo "$(basename $0) (Smart and ready desktop helper) $SATURNIN_VERSION"
    exit $FFOO_EXIT_OK
}

run_hook() {
    inigrep -j -p hook.$SATURNIN_SUBCOMMAND.$1 \
      | debug_pipe hook_$1 \
      | bash
}

subcommand() {
    local sc_es=0   # future exit (return) status
    local lexpath="$SATURNIN_LIBEXEC/saturnin-$SATURNIN_SUBCOMMAND"
    debug -v lexpath
    debug "\$*='$*'"
    test -x "$lexpath" || {
        warn "invalid sub-command: $SATURNIN_SUBCOMMAND"
        print_help
        return $FFOO_EXIT_USAGE
    }
    run_hook pre
    "$lexpath" "$@" || return $?
    sc_es=$?
    run_hook post
    return $sc_es
}

while true; do case $1 in
    -d|--debug)     export FFOO_DEBUG=true; shift   ;;
    -v|--verbose)   export FFOO_VERBOSE=true; shift ;;
    --version)      version_info                    ;;
    --version-semver) echo "$SATURNIN_VERSION"; exit ;;
    -*)             usage;                          ;;
    --*)            usage;                          ;;
    --)             shift; break                    ;;
    "")             usage;                          ;;
    *)              break;                          ;;
esac done

debug -v FFOO_PATH SATURNIN_LIBEXEC FFOO_INIGREP_PATH
debug "\$*='$*'"

export SATURNIN_SUBCOMMAND="$1"
shift

case "$SATURNIN_SUBCOMMAND" in
    conf)               inigrep "$@"    ;;
    help)               print_help      ;;
    _ls_subcommands)    ls_subcommands ;;
    _lsfun)             ffoom lsfun ;;
    _lsmod)             ffoom lsmod ;;
    _ffrun)             ffrun "$@" ;;
    *)                  subcommand "$@" ;;
esac