Disable mdstores in MacOS, globally and for every mounted volume and stop the generation of .DS_Store files

disable-mdstores.sh

#!/usr/bin/env bash

set -umeTE
set +f
set -o pipefail
export IFS=$'\n'

declare -- script_name="$(basename "${BASH_SOURCE[0]}")"
declare -- script_path="$(2>/dev/random 1>/dev/random cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
declare -- this_script_path="${script_path}/${script_name}"

on_exit() {
    set +x
}

on_ctrlc() {
    local -- msg="Aborted with Ctrl-C"
    1>&2 echo -e "\r\x1b[A${msg}"
    exit 130
}

trap on_exit exit
trap on_ctrlc hup
trap on_ctrlc int
trap on_ctrlc bus
trap on_ctrlc segv
trap on_ctrlc sys

declare -a argv=(${@})
declare -i argc=${#argv[@]}

declare -- arg=""
declare -- argument=""
declare -- field=""
declare -- key=""
declare -- line=""
declare -- name=""
declare -- url=""
declare -- param=""
declare -- device=""
declare -- bytes_used=""
declare -- bytes_free=""
declare -- path=""
declare -- pos=""
declare -- value=""

declare -i code=0
declare -i current=0
declare -i index=0
declare -i skip=0

declare -- filename=""
declare -- filename_extension=""
declare -- filename_base=""
declare -a volumes=()
declare -A volumes_path_by_path=()
declare -A volumes_bytes_used_by_path=()
declare -A volumes_bytes_free_by_path=()
declare -A volumes_device_by_path=()

for line in $(df -h); do
    path=$(sed -n -E 's/^([^[:space:]]+[[:space:]]+){5}([^[:space:]]+.*)/\2/gp' <<<"${line}")
    if [ ! -e "${path}" ]; then
        continue
    fi
    if [[ ! -v volumes_path_by_path["${path}"] ]]; then

        volumes_path_by_path["${path}"]="${path}"
        device=$(gawk '{ print $1 }' <<<"${line}")
        bytes_used=$(gawk '{ print $3 }' <<<"${line}")
        bytes_free=$(gawk '{ print $4 }' <<<"${line}")
        volumes_device_by_path["${path}"]="${device}"
        volumes_bytes_used_by_path["${path}"]="${bytes_used}"
        volumes_bytes_free_by_path["${path}"]="${bytes_free}"
        volumes+=("${path}")
    fi
done

throw_error() {
    1>&2 echo -e "\x1b[1;38;2;232;59;59m[\x1b[1;38;2;251;107;29m${script_name} \x1b[1;38;2;232;59;59merror]\x1b[0m \x1b[1;38;2;249;194;43m${@}\x1b[0m"
}
display_warning() {
    1>&2 echo -e "\x1b[1;38;2;232;59;59m[\x1b[1;38;2;251;107;29m${script_name} \x1b[1;38;2;232;59;59mwarning]\x1b[0m \x1b[1;38;2;249;194;43m${@}\x1b[0m"
    exit 1
}

run_mdutil() {
    local -a argv=(${@})
    local -i argc=${#argv[@]}
    local -i code=0
    1>&2 echo -e "\x1b[1;38;2;77;155;230mmdutil \x1b[1;38;2;143;211;255m${argv[@]}\x1b[0m"
    if sudo mdutil ${argv[@]}; then
        code=0
    else
        code=$?
    fi

    if [ ${code} -ne 0 ]; then
        1>&2 echo -e "\x1b[1;38;2;240;79;120mcommand failed with code \x1b[1;38;2;232;59;59m${code}\x1b[1;38;2;240;79;120m: \x1b[1;38;2;249;194;43mmdutil \x1b[1;38;2;251;107;29m${argv[@]}\x1b[0m\n"
    else
        1>&2 echo -e "\x1b[1;38;2;30;188;115mcommand succeeded: \x1b[1;38;2;213;224;75mmdutil \x1b[1;38;2;251;255;134m${argv[@]}\x1b[0m\n"
    fi
}

disable_at_path() {
    local -a argv=(${@})
    local -i argc=${#argv[@]}
    local -a targets=()
    local -- path=""
    if [ ${argc} -eq 0 ]; then
        throw_error "\x1b[1;38;2;249;194;43mfunction \x1b[1;38;2;240;79;120m${FUNCNAME[0]} \x1b[1;38;2;249;194;43mis missing argument: \x1b[1;38;2;246;129;129m<PATH>"
    fi
    if [ ${argc} -gt 1 ]; then
        throw_error "\x1b[1;38;2;249;194;43mfunction \x1b[1;38;2;240;79;120m${FUNCNAME[0]} \x1b[1;38;2;249;194;43mreceived too many arguments (${argc}): \x1b[1;38;2;246;129;129m${argv[@]@Q}"
    fi
    if [ -d "${argv[@]}" ]; then
        targets+=("${argv[@]}")
    else
        targets=( ${argv[@]} )
    fi
    for path in ${targets[@]}; do
        run_mdutil -i off "${path}"
        run_mdutil -d "${path}"
        run_mdutil -E "${path}"
        if [ -d "${path}" ]; then
            run_mdutil -E -V "${path}"
            run_mdutil -d -V "${path}"
            run_mdutil -i off -V "${path}"
        fi
    done
}

main() {
    for index in ${!argv[@]}; do
        current=$((index + 1))
        arg=${argv[${index}]}
        if [ -d "${arg}" ]; then
            volumes+=("${arg}")
        elif [ -e "${arg}" ]; then
            let ty=$(gstat -c %F "${arg}")
            display_warning "ignoring argument ${current} of ${argc} (${arg@Q}) because ${ty} ${arg@Q} is not a directory"
        else
            display_warning "ignoring argument ${current} of ${argc} (${arg@Q}) because ${arg@Q} is not an existing file"
        fi
    done
    for path in ${volumes[@]}; do
        1>&2 echo -e "\x1b[1;38;2;48;225;185mdisabling mdstores at path \x1b[1;38;2;143;248;226m${path}\x1b[0m"
        disable_at_path "${path}"
    done
    disable_at_path -a
}

if [ "${0}" == "${BASH_SOURCE[0]}" ]; then
    main
else
    1>&2 echo -e "${BASH_SOURCE[0]} appears to being used as a library by ${0@Q}"
fi
exit 0