You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
livecd-rootfs/live-build/lb_binary_layered

198 lines
5.7 KiB

#!/bin/sh
## live-build(7) - System Build Scripts
## Copyright (C) 2006-2012 Daniel Baumann <daniel@debian.org>
##
## This program 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
( . "${LIVE_BUILD}/scripts/build.sh" > /dev/null 2>&1 || true ) || . /usr/lib/live/build.sh
# Automatically populating config tree
if [ -x auto/config ] && [ ! -e .build/config ]
then
Echo_message "Automatically populating config tree."
lb config
fi
# Setting static variables
DESCRIPTION="$(Echo 'build binary images')"
HELP=""
USAGE="${PROGRAM} [--force]"
Arguments "${@}"
# Reading configuration files
Read_conffiles config/all config/common config/bootstrap config/chroot config/binary config/source
Set_defaults
# Setup cleanup function
Setup_cleanup
. config/functions
lb_binary_includes () {
# Copying includes from pass subdirectory
local pass="$1"
if [ ! -d config/includes.binary.${pass} ]; then
return
fi
cd config/includes.binary.${pass}
find . | cpio -dmpu --no-preserve-owner "${OLDPWD}"/chroot
cd "${OLDPWD}"
}
build_layered_squashfs () {
local pass=$1
shift 1 # restore ${*}
Echo_message "lb_binary_layered: treating pass $pass"
# Per convention, we include the subarch name next to the project
PROJECT_FULL=$PROJECT${SUBARCH:+-$SUBARCH}
# Building squashfs filesystem & manifest
local overlay_dir="overlay.${pass}"
base="${PWD}/livecd.${PROJECT_FULL}.${pass}"
squashfs_f="${base}.squashfs"
# We have already treated that pass
if [ -f "${squashfs_f}" ]; then
return
fi
rm -f .build/binary_chroot .build/binary_hooks
mkdir -p "$overlay_dir/"
lowerdirs=$(get_lowerdirs_for_pass $pass)
if [ -n "$lowerdirs" ]; then
mkdir -p chroot/
mount_overlay "$lowerdirs" "$overlay_dir" chroot/
else
ln -s "$overlay_dir/" chroot
fi
export PASS=${pass}
setenv_file PASS "${pass}" config/environment.chroot
# Cleanup root filesystem
lb binary_chroot ${*}
lb_binary_includes $pass ${*}
lb binary_hooks ${*}
# Copy initrd and vmlinuz outside of chroot and remove them from the layer squashfs
if $(is_live_layer "$pass"); then
lb binary_linux-image ${*}
rm -f chroot/boot/initrd.img-* chroot/boot/vmlinu{x,z}-*
fi
make_squashfs=yes
ppass="${pass}"
while :; do
for nsp in ${NO_SQUASHFS_PASSES}; do
if [ "${ppass}" = "${nsp}" ]; then
make_squashfs=no
break 2
fi
done
ppass="$(get_parent_pass "${ppass}")"
if [ -z "${ppass}" ]; then
break
fi
done
if [ $make_squashfs = yes ]; then
# Full manifest until that PASS
squashfs_f_manifest="${base}.manifest"
create_manifest "chroot" "${squashfs_f_manifest}.full"
# Delta manifest
diff -NU0 ${PWD}/livecd.${PROJECT_FULL}.$(get_parent_pass $pass).manifest.full ${squashfs_f_manifest}.full|grep -v ^@ > $squashfs_f_manifest || true
echo "Delta manifest:"
cat $squashfs_f_manifest
squashfs_f_size="${base}.size"
du -B 1 -s "overlay.${pass}/" | cut -f1 > "${squashfs_f_size}"
# We take first live pass for "global" ISO properties (used by installers and checkers):
# Prepare initrd + kernel
# Main manifest and size files
prefix="livecd.$PROJECT_FULL"
if [ ! -e "${prefix}.manifest" ] && $(is_live_layer "$pass"); then
totalsize=$(cat ${squashfs_f_size})
curpass="$pass"
while :; do
curpass=$(get_parent_pass $curpass)
# We climbed up the tree to the root layer, we are done
[ -z "$curpass" ] && break
totalsize=$(expr $totalsize + $(cat "${PWD}/livecd.${PROJECT_FULL}.${curpass}.size"))
done
echo ${totalsize} > "${prefix}.size"
cp "${squashfs_f_manifest}.full" "${prefix}.manifest"
fi
if [ -n "$lowerdirs" ]; then
# Although the current chroot was created as an overlay over
# the previous layer, many operations can result in redundant
# files in the upperdir. Rather than trying to minimize the
# overlay by hand, we rsync the chroot into a fresh overlay,
# rely on rsyncs ability to avoid redundant file operations,
# and take _that_ overlay's upperdir as the content of the
# layer.
mkdir -p chroot-2 "$overlay_dir-2"
mount_overlay "$lowerdirs" "$overlay_dir-2" chroot-2
rsync -caXHAS --no-t --del chroot/ chroot-2/
umount chroot-2
rmdir chroot-2
overlay_dir="$overlay_dir-2"
fi
create_squashfs "${overlay_dir}" ${squashfs_f}
if [ -f config/$pass.catalog-in.yaml ]; then
echo "Expanding catalog entry template for $pass"
usc_opts="--output livecd.${PROJECT_FULL}.install-sources.yaml \
--template config/$pass.catalog-in.yaml \
--size $(du -B 1 -s chroot/ | cut -f1) --squashfs ${pass}.squashfs \
--translations config/catalog-translations"
if [ -f config/seeded-languages ]; then
usc_opts="$usc_opts --langs $(cat config/seeded-languages)"
fi
/usr/share/livecd-rootfs/update-source-catalog $usc_opts
else
echo "No catalog entry template for $pass"
fi
fi
if [ -n "$lowerdirs" ]; then
umount chroot
rmdir chroot
else
rm chroot
fi
}
for _PASS in $PASSES
do
build_layered_squashfs "${_PASS}" ${*}
done
# Ubiquity-compatible removal manifest for ISO not using a layered-aware installer
if [ -n "$(ls livecd.${PROJECT_FULL}.*install.live.manifest.full 2>/dev/null)" ] && \
[ -n "$(ls livecd.${PROJECT_FULL}.*install.manifest.full 2>/dev/null)" ]; then
echo "$(diff livecd.${PROJECT_FULL}.*install.live.manifest.full livecd.${PROJECT_FULL}.*install.manifest.full | awk '/^< / { print $2 }')" > livecd.${PROJECT_FULL}-manifest-remove
fi
chmod 644 *.squashfs *.manifest* *.size