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#!/bin/sh
. /etc/functions.sh
# initialize defaults
RAMFS_COPY_BIN="/usr/bin/awk" # extra programs for temporary ramfs root
RAMFS_COPY_DATA="" # extra data files
export KEEP_PATTERN=""
export VERBOSE=0
# parse options
while [ -n "$1" ]; do
case "$1" in
-k)
shift
export SAVE_CONFIG=1
export KEEP_PATTERN="$1"
;;
-*)
echo "Invalid option: $1"
exit 1
;;
*) break;;
esac
shift;
done
export CONFFILES=/tmp/sysupgrade.conffiles
export CONF_TAR=/tmp/sysupgrade.tgz
[ -f $CONFFILES ] && rm $CONFFILES
[ -f $CONF_TAR ] && rm $CONF_TAR
export ARGV="$*"
export ARGC="$#"
[ -z "$ARGV" ] && {
cat <<EOF
Usage: $0 [options] <image file or URL>
Options:
-k <"file 1, file 2, ..."> Files to be kept
EOF
exit 1
}
add_pattern_conffiles() {
local file="$1"
find $KEEP_PATTERN >> "$file" 2>/dev/null
return 0
}
# hooks
sysupgrade_image_check="platform_check_image"
sysupgrade_init_conffiles=""
[ -n "$KEEP_PATTERN" ] && append sysupgrade_init_conffiles "add_pattern_conffiles"
include /lib/upgrade
do_save_conffiles() {
[ -z "$(rootfs_type)" ] && {
echo "Cannot save config while running from ramdisk."
exit 3
return 0
}
run_hooks "$CONFFILES" $sysupgrade_init_conffiles
v "Saving config files..."
[ "$VERBOSE" -gt 1 ] && TAR_V="v" || TAR_V=""
tar c${TAR_V}zf "$CONF_TAR" -T "$CONFFILES" 2>/dev/null
}
type platform_check_image >/dev/null 2>/dev/null || {
echo "Firmware upgrade is not implemented for this platform."
exit 1
}
for check in $sysupgrade_image_check; do
( eval "$check \"\$ARGV\"" ) || {
echo "Image check '$check' failed."
exit 2
}
done
[ -n "$sysupgrade_init_conffiles" ] && do_save_conffiles
run_hooks "" $sysupgrade_pre_upgrade
v "Switching to ramdisk..."
run_ramfs '. /etc/functions.sh; include /lib/upgrade; do_upgrade'
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