unixorn/tumult.plugin.zsh

#!/usr/bin/env bash
#
# Copyright 2018, Joe Block <jpb@unixorn.net>
# License: Apache 2.0
#
# Mojave has a pain in the ass warning about not enough disk being free, and
# on my MBA, it pops up every few minutes. Fuck that noise.
#
# This script allows you to set the warning threshold to a different number
# of gigabytes of free space before Mojave whines at you.

DISKSPACE_D_PLIST='/System/Library/LaunchAgents/com.apple.diskspaced.plist'

if [[ ! -f $DISKSPACE_D_PLIST ]]; then
  echo "No $DISKSPACE_D_PLIST, exiting"
  exit 0
fi

if [[ $# -ne 1 ]]; then
  # shellcheck disable=SC2086
  echo "$(basename $0) takes a single argument, the minimum number of gigabytes of free space before complaining"
  exit 1
fi

if ! [[ "$1" =~ ^[0-9]+$ ]]; then
  echo "You must specify an integer number of gigabytes free on disk to trigger the Mojave disk warning"
  exit 1
fi

defaults write com.apple.diskspaced minFreeSpace "${1}"
sipError=$(launchctl unload -w "${DISKSPACE_D_PLIST}" 2>&1 | grep -i 'System Integrity Protection' -c)
if [[ "$sipError" -eq 1 ]]; then
  echo "It looks like you have SIP enabled. It's ok, it's the default macOS setting and more secure."
  echo "You're going to have to reboot to get rid of those damn popups whining about disk space though."
fi
launchctl load -w "${DISKSPACE_D_PLIST}"