plomlompom.com Git - config/blob - bookworm/setup_scripts/purge_nonrequireds.sh

   1 #!/bin/sh
   2 # This script removes all Debian packages that are not of Priority
   3 # "required" or not depended on by packages of priority "required"
   4 # or not listed in the argument-selected files of apt-mark/.
   5 set -e
   6 debian_version="bookworm"
   7
   8 config_tree_prefix="${HOME}/config/${debian_version}"
   9 aptmark_dir="${config_tree_prefix}/apt-mark"
  10
  11 dpkg-query -Wf '${Package} ${Priority}\n' | grep ' required' | sed 's/ required//' > /tmp/list_white_unsorted
  12 for target in "$@"; do
  13     path="${aptmark_dir}/${target}"
  14     cat "${path}" | while read line; do
  15         if [ ! $(echo "${line}" | cut -c1) = "#" ]; then
  16             echo "${line}" >> /tmp/list_white_unsorted
  17         fi
  18     done
  19 done
  20 sort /tmp/list_white_unsorted > /tmp/list_white
  21 dpkg-query -Wf '${Package}\n' > /tmp/list_all_packages
  22 sort /tmp/list_all_packages > /tmp/foo
  23 mv /tmp/foo /tmp/list_all_packages
  24 comm -3 /tmp/list_all_packages /tmp/list_white > /tmp/list_black
  25 apt-mark auto `cat /tmp/list_black`
  26 DEBIAN_FRONTEND=noninteractive apt-get -y --purge autoremove
  27 rm /tmp/list_all_packages /tmp/list_white_unsorted /tmp/list_white /tmp/list_black
  28
  29 # Somehow, auto-mounts get undone by all of this, so re-mount /etc/fstab.
  30 # TODO: Find out why.
  31 mount -a