cmdline

#!/bin/bash

# modify cmdline.txt

# @example
# add processor.max_cstate=1
# remove isolcpus=2,3
# RPI_CMDLINE_ADD=( "processor.max_cstate=1" )
# RPI_CMDLINE_REMOVE=( "isolcpus=2,3" )


# load dependencies
plugin_load run || return 1

to_array RPI_CMDLINE_ADD
to_array RPI_CMDLINE_REMOVE

function rpi_cmdline_prerun() {
    [[ -n "${RPI_CMDLINE_ADD}" ]] || [[ -n "${RPI_CMDLINE_REMOVE}" ]] || error "RPI_CMDLINE_ADD and RPI_CMDLINE_REMOVE unset"
}

function rpi_cmdline_run() {
    for c in "${RPI_CMDLINE_ADD[@]}" ; do
        log "setting ${c} ..."
        rpi_append_to_file "${c}" "${RPI_BOOT}/cmdline.txt" || error "adding ${c}"
    done

    for c in "${RPI_CMDLINE_REMOVE[@]}" ; do
        log "removing ${c} ..."
        rpi_remove_pattern_from_file "${c}" "${RPI_BOOT}/cmdline.txt" || error "removing ${c}"
    done

    # remove newlines from cmdline.txt
    tr '\n' ' ' < "${RPI_BOOT}/cmdline.txt" > "${RPI_BOOT}/cmdline.new"
    mv "${RPI_BOOT}/cmdline.new" "${RPI_BOOT}/cmdline.txt"
}

function rpi_cmdline_description() {
    echo "modify cmdline.txt"
}

function rpi_cmdline_help_params() {
    help_param "RPI_CMDLINE_ADD" "arguments to add"
    help_param "RPI_CMDLINE_REMOVE" "arguments to remove"
}