github.com/stolowski/snapd@v0.0.0-20210407085831-115137ce5a22/packaging/ubuntu-16.04/snapd.prerm (about)

     1  #!/bin/sh
     2  
     3  set -e
     4  
     5  # "powerpc" is not supported unfortunately, do nothing here# 
     6  if [ "$DPKG_MAINTSCRIPT_ARCH" = powerpc ]; then
     7      exit 0
     8  fi
     9  
    10  systemctl_stop() {
    11      unit="$1"
    12  
    13      echo "Stopping unit $unit"
    14      systemctl stop -q "$unit" || true
    15  
    16      for i in $(seq 20); do
    17          echo "Waiting until unit $unit is stopped [attempt $i]"
    18          if ! systemctl is-active -q "$unit"; then
    19              echo "$unit is stopped."
    20              return
    21          fi
    22          sleep .1
    23      done
    24  }
    25  
    26  if [ "$1" = "remove" ]; then
    27      units=$(systemctl list-unit-files --full | grep '^snap\.' | cut -f1 -d ' ' | grep -vF snap.mount.service || true)
    28      tostop=$(echo "$units" | grep -E '^snap\..*\.(service|timer|socket)$' || true)
    29  
    30      for unit in $tostop; do
    31          # ensure it's really a snap mount unit or systemd unit
    32          if  ! grep -q 'X-Snappy=yes' "/etc/systemd/system/$unit"; then
    33              echo "Skipping non-snapd systemd unit $unit"
    34              continue
    35          fi
    36  
    37          echo "Stopping $unit"
    38          systemctl_stop "$unit"
    39      done
    40  fi
    41  
    42  #DEBHELPER#