aur.in

#!/bin/bash -
readonly XDG_CONFIG_HOME=${XDG_CONFIG_HOME:-$HOME/.config}
readonly argv0=aur
readonly aur_version='AURUTILS_VERSION'
readonly lib_dir=${AUR_EXEC_PATH:-'AURUTILS_LIB_DIR'}
shopt -s nullglob

if [[ -z $1 ]]; then
    printf >&2 'usage: %s [command]\n\n' "$argv0"
    printf >&2 'available commands:\n'

    for p in "$lib_dir"/aur-*; do
        printf '%q\n' "${p##*/aur-}"
    done | column >&2

    printf >&2 '\navailable user commands:\n'

    compgen -c aur- | sort -u | while IFS= read -r; do
        if ! [[ -x $lib_dir/$REPLY ]]; then
            printf '%q\n' "${REPLY#aur-}"
        fi
    done | column >&2

    exit 1
fi

# load environment
if [[ -f ${AUR_ENV=$XDG_CONFIG_HOME/aurutils/env} ]]; then
    while IFS=' = ' read -r key value; do
        case $key in
            AUR*) printf -v "$key" '%s' "$value"
                  export "${key?}" ;;
        esac
    done < <(pacini "$AUR_ENV")

    wait "$!"
fi

if [[ -v AUR_DEBUG ]]; then
    printf >&2 'aur version %s\n' "$aur_version"
fi

case $1 in
    --version)
        printf >&2 'aur version %s\n' "$aur_version"
        exit 0 ;;
    --env)
        printenv | grep -E '(^AUR|PERL5LIB)' | sort >&2
        exit 0 ;;
    --exec-path)
        printf '%s\n' "$lib_dir"
        exit 0 ;;
esac

if [[ "$PATH" != "$lib_dir:"* ]]; then
    readonly PATH=$lib_dir:$PATH
fi

if type -P "aur-$1" >/dev/null; then
    exec "aur-$1" "${@:2}"
else
    printf >&2 '%s: %q is not an aur command\n' "$argv0" "$1"
    exit 1
fi