chmod

#!/bin/bash

# chmod a file on the image

# default options
RPI_CHMOD_PERM="${RPI_CHMOD_PERM:=}"
RPI_CHMOD_PATH="${RPI_CHMOD_PATH:=}"
RPI_CHMOD_RECURSIVE="${RPI_CHMOD_RECURSIVE:=false}"


function rpi_chmod_prerun() {
    [[ -n "${RPI_CHMOD_PERM}" ]] || error "RPI_CHMOD_PERM check"
    [[ -e "${RPI_CHMOD_PATH}" ]] || error "RPI_CHMOD_PATH check"
}

function rpi_chmod_run() {
    rpi_chmod_pi "${RPI_CHMOD_PERM}" "${RPI_CHMOD_PATH}" "${RPI_CHMOD_RECURSIVE}" || error "rpi_chmod_pi"
}

function rpi_chmod_description() {
    echo "chmod a file on the image"
}

function rpi_chmod_help_params() {
    help_param "RPI_CHMOD_PERM" "permissions"
    help_param "RPI_CHMOD_PATH" "path to chmod target"
    help_param "RPI_CHMOD_RECURSIVE" "chmod (only files) recursively if true"
}

# ---------------------------------------------------------------------
# chmod wrapper
function rpi_chmod_pi() {
    local permissions="$1"
    local path="$2"
    local recursive="$3"
    if [[ -z "${permissions}" ]] && [[ -z "${path}" ]] ; then error "missing argument" ; fi
    # directory ?
    if [[ "${recursive}" == "true" ]] ; then
        sudo find "${RPI_ROOT}/${path}" -type f -exec chmod "${permissions}" {} \;
    else
        sudo chmod "${permissions}" "${RPI_ROOT}/${path}"
    fi
}