145 lines
3.6 KiB
Bash
145 lines
3.6 KiB
Bash
#!/sbin/sh
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OUTFD="/proc/self/fd/$2"
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ZIP=$3
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ui_print() {
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echo "ui_print $1" > "$OUTFD";
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echo "ui_print" > "$OUTFD";
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}
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unmount_partition() {
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ui_print "Unmounting partitions"
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umount -l "$SYSTEM_MNT"
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}
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error() {
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ui_print "$1"
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unmount_partition
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exit 1
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}
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error_no_space() {
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error "Not enough space for ih8sn! Aborting"
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}
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error_mounting() {
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error "Could not mount $1! Aborting"
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}
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get_block_for_mount_point() {
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grep -v "^#" /etc/recovery.fstab | grep "[[:blank:]]$1[[:blank:]]" | tail -n1 | tr -s [:blank:] ' ' | cut -d' ' -f1
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}
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find_block() {
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local name="$1"
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local fstab_entry=$(get_block_for_mount_point "/$name")
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# P-SAR hacks
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[ -z "$fstab_entry" ] && [ "$name" = "system" ] && fstab_entry=$(get_block_for_mount_point "/")
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[ -z "$fstab_entry" ] && [ "$name" = "system" ] && fstab_entry=$(get_block_for_mount_point "/system_root")
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local dev
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if [ "$DYNAMIC_PARTITIONS" = "true" ]; then
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if [ -n "$fstab_entry" ]; then
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dev="${BLK_PATH}/${fstab_entry}${SLOT_SUFFIX}"
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else
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dev="${BLK_PATH}/${name}${SLOT_SUFFIX}"
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fi
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else
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if [ -n "$fstab_entry" ]; then
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dev="${fstab_entry}${SLOT_SUFFIX}"
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else
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dev="${BLK_PATH}/${name}${SLOT_SUFFIX}"
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fi
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fi
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if [ -b "$dev" ]; then
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echo "$dev"
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fi
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}
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compute_ih8sn_space() {
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# Set minimum space required for ih8sn 10mb + STORAGE_BUFFER
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NEEDED_STORAGE_SYSTEM=$(expr $STORAGE_BUFFER + $STORAGE_BUFFER)
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RECLAIMABLE_STORAGE_SYSTEM=$(find . -type f | sed "s|^./|${SYSTEM_MNT}/system/|" | xargs ls -d 2>/dev/null | xargs du -cs PLACEHOLDER 2>/dev/null | tail -n1 | cut -f1)
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NEEDED_STORAGE_SYSTEM=$(expr $NEEDED_STORAGE_SYSTEM - $RECLAIMABLE_STORAGE_SYSTEM)
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}
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ui_print "**********************"
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ui_print "ih8sn installer"
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ui_print "**********************"
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ui_print "Mounting system partition"
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# Ensure system is unmounted so mounting succeeds
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umount /system || umount /mnt/system || true
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# Find partitions
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DYNAMIC_PARTITIONS=`getprop ro.boot.dynamic_partitions`
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if [ "$DYNAMIC_PARTITIONS" = "true" ]; then
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BLK_PATH="/dev/block/mapper"
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else
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BLK_PATH=/dev/block/bootdevice/by-name
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fi
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CURRENTSLOT=`getprop ro.boot.slot_suffix`
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if [ ! -z "$CURRENTSLOT" ]; then
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if [ "$CURRENTSLOT" == "_a" ]; then
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SLOT_SUFFIX="_a"
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else
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SLOT_SUFFIX="_b"
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fi
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fi
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SYSTEM_BLOCK=$(find_block "system")
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# Disable rw protection on dynamic partitions
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if [ "$DYNAMIC_PARTITIONS" = "true" ]; then
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blockdev --setrw "$SYSTEM_BLOCK"
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fi
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# Mount and define SYSTEM_MNT
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SYSTEM_MNT=/mnt/system
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mkdir -p "$SYSTEM_MNT" || true
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if mount -o rw "$SYSTEM_BLOCK" "$SYSTEM_MNT"; then
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ui_print "$SYSTEM_MNT mounted"
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else
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error_mounting "$SYSTEM_MNT"
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fi
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# Compute storage requirements
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SYSTEM_STORAGE=`df $SYSTEM_MNT | tail -1 | tr -s ' ' | cut -d ' ' -f4`
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STORAGE_BUFFER=10240
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compute_ih8sn_space
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if [ "$SYSTEM_STORAGE" -lt "$NEEDED_STORAGE_SYSTEM" ]; then
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compute_ih8sn_space
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if [ "$SYSTEM_STORAGE" -lt "$NEEDED_STORAGE_SYSTEM" ]; then
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error_no_space
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fi
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fi
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# Set ih8sn config
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SERIALNO=$(getprop ro.boot.serialno)
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PRODUCT=$(getprop ro.build.product)
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DEFAULT_CONFIG=system/etc/ih8sn.conf
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if [[ `unzip -l $ZIP | grep ih8sn.conf.$SERIALNO$` ]] && [[ ! -z "$SERIALNO" ]]; then
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CONFIG=$DEFAULT_CONFIG.$SERIALNO
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elif [[ `unzip -l $ZIP | grep ih8sn.conf.$PRODUCT$` ]] && [[ ! -z "$PRODUCT" ]]; then
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CONFIG=$DEFAULT_CONFIG.$PRODUCT
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else
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CONFIG=$DEFAULT_CONFIG
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fi
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ui_print "Copying files"
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unzip -qq "$ZIP" system/etc/init/ih8sn.rc system/addon.d/60-ih8sn.sh system/bin/ih8sn -d "${SYSTEM_MNT}/"
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ui_print "Using ih8sn config: $CONFIG"
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unzip -qqp "$ZIP" $CONFIG > "${SYSTEM_MNT}/$DEFAULT_CONFIG"
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unmount_partition
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ui_print "Done!"
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exit 0
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