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