#!/bin/bash
### GENERAL
##
#
# bi-indexed record fields
declare -i -r name=0 ver=1 rev=2 trk=3 pub=4 notes=5
declare -a -r lookup=( name ver rev trk pub notes )
clear_cache() { sudo rm -rf /var/cache/snapd/ ;}
uninstall_snapd() { sudo apt-get purge snapd && sudo apt autoremove ;}
cleanup_home() { rm -rf "$HOME/snap" ;}
continue_or_exit() { read -s -n1 -p"Continue ? [Y/n]" ; [ "${REPLY^^}" = "N" ] && exit ;}
### FUNCTIONS
##
#
uninstall_where()
{
local -i fieldnr="$1" ; local -a line
echo -e "\n# removing snaps where ${lookup[fieldnr]} $2 $3"
snap list | tail -n +2 | while read -a line
do
if [ "${line[fieldnr]}" "$2" "$3" ]
then sudo snap remove --purge "${line[name]}" || continue_or_exit
fi
wait
done
}
uninstall_all_snaps()
{
uninstall_where "$pub" != 'canonical**'
uninstall_where "$name" = 'snap-store'
uninstall_where "$notes" = '-'
uninstall_where "$notes" = 'base'
uninstall_where "$name" = 'snapd'
}
pin_snapd()
{
cat<<-BLOCK_IN_APT | sudo tee /etc/apt/preferences.d/nosnap.pref
Package: snapd
Pin: release a=*
Pin-Priority: -10
BLOCK_IN_APT
}
disable_snapd()
{
sudo systemctl disable snapd.socket
sudo systemctl stop snapd.service
sudo systemctl disable snapd.service
sudo systemctl mask snapd.service
}
enable_snapd()
{
sudo systemctl unmask snapd.service
sudo systemctl enable snapd.socket
sudo systemctl enable snapd.service
sudo systemctl start snapd.service
}
reinstall()
{
sudo rm /etc/apt/preferences.d/nosnap.pref >/dev/null
sudo apt-get update && sudo apt-get upgrade
sudo apt-get install snapd
enable_snapd
sudo snap install snap-store
}
### MAIN
##
#
declare -u choice
while :
do
clear
cat<<-MENU
DESNAPIFYER
___________________________________
snap list:
$( ps -A |grep snapd >/dev/null && snap list )
___________________________________
(basic) snap remove steps:
[1] Remove installed snaps
[2] Remove snapd
[3] Pin snapd
[4] Remove snap directory from home
___________________________________
(advanced) special tools:
[5] disable snapd in systemd
[6] enable snapd in systemd
___________________________________
[R] regret: install snap again
[Q] quit
___________________________________
MENU
read -r -s -n1 choice
case "$choice" in
1) uninstall_all_snaps ; continue_or_exit ;;
2) clear_cache && uninstall_snapd ; continue_or_exit ;;
3) pin_snapd ; continue_or_exit ;;
4) cleanup_home ; continue_or_exit ;;
5) disable_snapd ; continue_or_exit ;;
6) enable_snapd ; continue_or_exit ;;
R) reinstall ; continue_or_exit ;;
Q) exit ;;
esac
done
This is done on a ‘best effort’ base without guarantees.
Please let me know of any bugs you encounter.
