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add a way to prevent a layer (and descendants) from being made into a sqashfs

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for the live server build, i want to make a layer to install the kernel
into but do not want the layer itself to be published.

the implementation is a bit clunky but it works.
This commit is contained in:
Michael Hudson-Doyle 2021-06-25 10:25:40 +12:00
parent e4ca30e351
commit fb8af1fd80
2 changed files with 44 additions and 24 deletions
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3
live-build/auto/config
View File

@ -1023,6 +1023,9 @@ echo "IMAGEFORMAT=\"$IMAGEFORMAT\"" >> config/chroot
if [ -n "$PASSES" ]; then
echo "PASSES=\"$PASSES\"" >> config/common
fi
if [ -n "$NO_SQUASHFS_PASSES" ]; then
echo "NO_SQUASHFS_PASSES=\"$NO_SQUASHFS_PASSES\"" >> config/common
fi
if [ -n "$LIVE_PASSES" ]; then
echo "LIVE_PASSES=\"$LIVE_PASSES\"" >> config/common
fi

65
live-build/lb_binary_layered
View File

@ -92,37 +92,54 @@ build_layered_squashfs () {
rm -f chroot/boot/initrd.img-* chroot/boot/vmlinu{x,z}-*
fi
# Full manifest until that PASS
squashfs_f_manifest="${base}.manifest"
create_manifest "chroot" "${squashfs_f_manifest}.full"
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
# Delta manifest
diff -NU0 ${PWD}/livecd.${PROJECT}.$(get_parent_pass $pass).manifest.full ${squashfs_f_manifest}.full|grep -v ^@ > $squashfs_f_manifest
if [ $make_squashfs = yes ]; then
# Full manifest until that PASS
squashfs_f_manifest="${base}.manifest"
create_manifest "chroot" "${squashfs_f_manifest}.full"
squashfs_f_size="${base}.size"
du -B 1 -s "overlay.${pass}/" | cut -f1 > "${squashfs_f_size}"
# Delta manifest
diff -NU0 ${PWD}/livecd.${PROJECT}.$(get_parent_pass $pass).manifest.full ${squashfs_f_manifest}.full|grep -v ^@ > $squashfs_f_manifest
# We take first live pass for "global" ISO properties (used by installers and checkers):
# Prepare initrd + kernel
# Main manifest and size files
prefix="livecd.$PROJECT${SUBARCH:+-$SUBARCH}"
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
squashfs_f_size="${base}.size"
du -B 1 -s "overlay.${pass}/" | cut -f1 > "${squashfs_f_size}"
totalsize=$(expr $totalsize + $(cat "${PWD}/livecd.${PROJECT}.${curpass}.size"))
done
echo ${totalsize} > "${prefix}.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.$PROJECT${SUBARCH:+-$SUBARCH}"
if [ ! -e "${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
cp "${squashfs_f_manifest}.full" "${prefix}.manifest"
totalsize=$(expr $totalsize + $(cat "${PWD}/livecd.${PROJECT}.${curpass}.size"))
done
echo ${totalsize} > "${prefix}.size"
cp "${squashfs_f_manifest}.full" "${prefix}.manifest"
fi
create_squashfs "overlay.${pass}/" ${squashfs_f}
fi
create_squashfs "overlay.${pass}" ${squashfs_f}
if [ -n "$lowerdirs" ]; then
umount chroot
rmdir chroot