functions/exit.sh

   1 #!/bin/sh
   2
   3 ## live-build(7) - System Build Scripts
   4 ## Copyright (C) 2006-2015 Daniel Baumann <mail@daniel-baumann.ch>
   5 ##
   6 ## This program comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
   7 ## This is free software, and you are welcome to redistribute it
   8 ## under certain conditions; see COPYING for details.
   9
  10
  11 Exit ()
  12 {
  13         VALUE="${?}"
  14
  15         if [ "${_DEBUG}" = "true" ]
  16         then
  17                 # Dump variables
  18                 set | grep -e ^LB
  19         fi
  20
  21         # Always exit true in case we are not able to unmount
  22         # (e.g. due to running processes in chroot from user customizations)
  23         Echo_message "Begin unmounting filesystems..."
  24
  25         if [ -e /proc/mounts ]
  26         then
  27                 for DIRECTORY in $(awk -v dir="${PWD}/chroot/" '$2 ~ dir { print $2 }' /proc/mounts | sort -r)
  28                 do
  29                         umount ${DIRECTORY} > /dev/null 2>&1 || true
  30                 done
  31         else
  32                 for DIRECTORY in /dev/shm /dev/pts /dev /proc /selinux /sys /root/config
  33                 do
  34                         umount -f chroot/${DIRECTORY} > /dev/null 2>&1 || true
  35                 done
  36         fi
  37
  38         rm -f .build/chroot_devpts
  39         rm -f .build/chroot_proc
  40         rm -f .build/chroot_selinuxfs
  41         rm -f .build/chroot_sysfs
  42
  43         Echo_message "Saving caches..."
  44
  45         # We can't really know at which part we're failing,
  46         # but let's assume that if there's any binary stage file arround
  47         # we are in binary stage.
  48
  49         if ls .build/binary* > /dev/null 2>&1
  50         then
  51                 Save_cache cache/packages.binary
  52         else
  53                 Save_cache cache/packages.chroot
  54         fi
  55
  56         return ${VALUE}
  57 }
  58
  59 Setup_cleanup ()
  60 {
  61         Echo_message "Setting up cleanup function"
  62         trap 'Exit' EXIT HUP INT QUIT TERM
  63 }