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# Functions

memq() { # memq ITEM ARRAY
    ## Test whether an ITEM is a member of ARRAY.
    ## Pass ARRAY as ${ARRAY[@]}.
    local e needle="$1"
    shift
    for e; do
        [[ "$e" == "$needle" ]] && {
            return 0
        }
    done
    return 1
}

rebashrc() { # rebashrc
    ## Reload ~/.bashrc
    printf "Loading ~/.bashrc..." >&2
    if source "$HOME/.bashrc"; then
        echo "OK." >&2
    else
        echo "ERROR!" >&2
    fi
}

first_which() { # first_which COMMAND...
    ## Return the fully-qualified path of the first COMMAND found in $PATH.
    while :; do
        command -v "$1" && break
        [ -z "$1" ] && return 1
        shift
    done
}

please() { # please [COMMAND...]
    # if run without arguments, run the last command with 'sudo' (aka sudo !!)
    # if run WITH arguments, alias as sudo
    history -d -1
    if [ -z "$1" ]; then
        #set --	$(HISTTIMEFORMAT=$'\t' history 2 | sed 's/^.*\t//;q')
        set -- $(fc -lnr | sed 1q)
    fi
    echo >&2 sudo "$@"
    history -s sudo "$@"
    "${DEBUG:-false}" || sudo "$@"
}

mkcd() {
    if [ $# -lt 1 ]; then
        command cd
        return "$?"
    fi
    if [ "x$1" = x- ]; then
        command cd -
        return "$?"
    fi
    if ! [ -d "$1" ]; then
        read -p "$1 doesn't exist.  Create (y/N)? " yn
        case "$yn" in
            n* | N*) return 1 ;;
            y* | Y*) mkdir -p "$1" ;;
            *) return 1 ;;
        esac
    fi
    command cd "$1"
}
alias cd='mkcd '

# from tomasino
# alias julian='echo "x = $(date +%s); scale=5; x / 86400 + 2440587.5" | bc'
julian() {
    echo "x = $(date ${1:+-d "$*"} +%s); scale=5; x / 86400 + 2440587.5" | bc
}

# find files for pipelines
f() {
    find "${1:-$PWD}" -depth |
        while read -r file; do
            printf '%q\n' "$file"
        done
}

words() {
    grep -E "$1" /usr/share/dict/words
}

if ! command -v dict >/dev/null 2>&1; then
    dict() {
        curl "dict://dict.org/d:$1" | less
    }
fi

if command -v thesauracles >/dev/null 2>&1; then
    thesauraphrase() {
        for word in "$@"; do
            thesauracles -q "$word"
        done | tr '\n' ' '
        echo
    }
fi

up() {
    : "${UP_TODIRECTORY:=..}"
    : "${UP_SPECIALARGS:=true}"
    local ret=0
    # echo "$UP_TODIRECTORY" "$UP_SPECIALARGS"
    if "$UP_SPECIALARGS"; then
        case "$1" in
            '') cd "$UP_TODIRECTORY" ;;
            up) UP_TODIRECTORY="${UP_TODIRECTORY}/.." up "${@:2}" ;;
            --) UP_SPECIALARGS=false up "${@:2}" ;;
            -*) if (( "$1" == -1 )); then
                    up
                else
                    UP_TODIRECTORY="${UP_TODIRECTORY}/.." up $(( "$1" + 1 ))
                fi
                ;;
            *) while cd ..; do
                   case "$PWD" in
                   /) ret=1; break ;;
                   */"$1") break ;;
                   esac
               done
            ;;
        esac
    else
        case "$1" in
            '') cd "$UP_TODIRECTORY" ;;
            *) while cd ..; do
                   case "$PWD" in
                   /) ret=1; break ;;
                   */"$1") break ;;
                   esac
               done
            ;;
        esac
    fi
    UP_TODIRECTORY=
    UP_SPECIALARGS=
    return "$ret"
}

apk() { # wrapper for apk(1)
	apk="$(which apk)"
	test -z "$apk" && return 1
	case "$1" in
		add|del|fix|update|upgrade) doas "$apk" "$@" ;;
		install) shift; apk add "$@" ;;
		remove) shift; apk del "$@" ;;
		*) "$apk" "$@" ;;
	esac
}

sl() {
	printf >&2 '%s\n' "CHOO CHOO!"
	ls "$@"
}

mkssh() {
	ssh-keygen -t ed25519 -f "$HOME/.ssh/$1"
	cat "$HOME/.ssh/$1.pub" | tee /dev/stdout | wl-copy
}