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|
#!/bin/sh
# lh_binary_chroot(1) - copy chroot into chroot
# Copyright (C) 2006-2008 Daniel Baumann <daniel@debian.org>
#
# live-helper comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
# This is free software, and you are welcome to redistribute it
# under certain conditions; see COPYING for details.
set -e
# Including common functions
LH_BASE="${LH_BASE:-/usr/share/live-helper}"
for FUNCTION in "${LH_BASE}"/functions/*.sh
do
. "${FUNCTION}"
done
# Setting static variables
DESCRIPTION="copy chroot into chroot"
HELP=""
USAGE="${PROGRAM} [--force]"
Arguments "${@}"
# Reading configuration files
Read_conffile config/all
Read_conffile config/common
Read_conffile config/bootstrap
Read_conffile config/chroot
Read_conffile config/binary
Read_conffile config/source
Read_conffile "${LH_CONFIG}"
Set_defaults
Echo_message "Begin copying chroot..."
# Requiring stage file
Require_stagefile .stage/bootstrap
# Checking stage file
Check_stagefile .stage/binary_chroot
# Checking lock file
Check_lockfile .lock
# Creating lock file
Create_lockfile .lock
# Normally, virtual filesystems are not mounted here, but people tend to be lazy
if [ -f chroot/proc/version ]
then
if [ "${LH_USE_FAKEROOT}" != "enabled" ]
then
${LH_ROOT_COMMAND} umount chroot/proc
else
rm -rf chroot/proc
mkdir -p chroot/proc
fi
fi
if [ -d chroot/sys/kernel ]
then
if [ "${LH_USE_FAKEROOT}" != "enabled" ]
then
${LH_ROOT_COMMAND} umount chroot/sys
else
rm -rf chroot/sys
mkdir -p chroot/sys
fi
fi
# Copying /dev if using fakeroot
if [ "${LH_USE_FAKEROOT}" = "enabled" ]
then
rm -rf chroot/dev
find /dev | cpio -dmpu chroot
fi
if [ "${LH_CHROOT_BUILD}" = "disabled" ]
then
exit 0
fi
if [ "${LH_CACHE}" = "enabled" ] && ls cache/stages_rootfs/filesystem* > /dev/null 2>&1
then
exit 0
fi
Echo_message "This may take a while."
# Removing old chroot
${LH_ROOT_COMMAND} rm -rf chroot/chroot
${LH_ROOT_COMMAND} rm -rf chroot.tmp
# Copying new chroot
${LH_ROOT_COMMAND} cp -a chroot chroot.tmp
${LH_ROOT_COMMAND} mv chroot.tmp chroot/chroot
if [ -f config/binary_rootfs/exclude ]
then
# Read exclude file and expand wildcards.
for EXCLUDE in $(cat config/binary_rootfs/exclude)
do
if [ -e chroot/chroot/"${EXCLUDE}" ]
then
# Run "rm" inside the chroot so it cannot possibly remove host files.
Chroot "rm -r chroot/${EXCLUDE}"
else
Echo_warning "Excluded path does not exist: ${EXCLUDE}"
fi
done
fi
if [ -n "${LH_ROOT_COMMAND}" ]
then
${LH_ROOT_COMMAND} chown -R $(whoami):$(whoami) chroot
fi
# Creating stage file
Create_stagefile .stage/binary_chroot
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