91 lines
2.1 KiB
Bash
Executable File
91 lines
2.1 KiB
Bash
Executable File
#!/bin/sh
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## live-build(7) - System Build Scripts
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## Copyright (C) 2016-2020 The Debian Live team
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## Copyright (C) 2006-2015 Daniel Baumann <mail@daniel-baumann.ch>
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##
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## This program comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
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## This is free software, and you are welcome to redistribute it
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## under certain conditions; see COPYING for details.
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Exit ()
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{
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local VALUE=$1
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if [ "${_DEBUG}" = "true" ]
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then
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# Dump variables
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set | grep -e ^LB
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fi
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# Skip if we have not yet completed the initial bootstrapping (bootstrap_debootstrap)
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# (nothing to be done; avoids unhelpful messages)
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if ! Stagefile_exists bootstrap; then
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return ${VALUE}
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fi
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# Always exit true in case we are not able to unmount
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# (e.g. due to running processes in chroot from user customizations)
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Echo_message "Begin unmounting filesystems..."
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local DIRECTORY
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if [ -e /proc/mounts ]
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then
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for DIRECTORY in $(awk -v dir="${PWD}/chroot/" '$2 ~ dir { print $2 }' /proc/mounts | sort -r)
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do
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umount ${DIRECTORY} > /dev/null 2>&1 || true
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done
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else
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for DIRECTORY in /dev/shm /dev/pts /dev /proc /sys/fs/selinux /sys /root/config
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do
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umount -f chroot/${DIRECTORY} > /dev/null 2>&1 || true
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done
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fi
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STAGEFILES_DIR="$(Stagefiles_dir)"
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rm -f "${STAGEFILES_DIR}"/chroot_devpts
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rm -f "${STAGEFILES_DIR}"/chroot_proc
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rm -f "${STAGEFILES_DIR}"/chroot_selinuxfs
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rm -f "${STAGEFILES_DIR}"/chroot_sysfs
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Echo_message "Saving caches..."
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# We can't really know at which part we're failing,
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# but let's assume that if there's any binary stage file arround
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# we are in binary stage.
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if ls "${STAGEFILES_DIR}"/binary* > /dev/null 2>&1
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then
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Save_package_cache binary
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else
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Save_package_cache chroot
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fi
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return ${VALUE}
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}
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Exit_exit ()
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{
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local VALUE=$?
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if [ "${VALUE}" -ne 0 ]; then
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Echo_error "An unexpected failure occurred, exiting..."
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fi
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Exit ${VALUE}
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}
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Exit_other ()
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{
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local VALUE=$?
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Echo_warning "Unexpected early exit caught, attempting cleanup..."
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Exit ${VALUE}
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}
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Setup_clean_exit ()
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{
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Echo_message "Setting up clean exit handler"
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trap 'Exit_other' HUP INT QUIT TERM
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trap 'Exit_exit' EXIT
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}
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