path: root/satellit_upgrader/pack-update.sh

#!/bin/bash

declare -rg SELFPID=$$
perror () {
	if [ -n "$IGNORE_ERRORS" ]; then
		echo "[ERROR] $@"
		return 0
	fi
	echo "[FATAL] $@"
	[ "$$" != "$SELFPID" ] && kill "$SELFPID"
	exit 1
}

patchtgz () {
	[ -z "$1" ] && perror "patchtgz call failure"
	local VARNAME="$1"
	local VALUE="$2"
	sed -i "s,%${VARNAME}%,${VALUE},g" "$UPDATER" || perror "could not patchtgz $VARNAME in updater"
}

#declare -rg TMPDIR=$(mktemp -d)
#[ -d "$TMPDIR" ] || perror "TMPDIR fail."
declare -rg UPDATER="updater.sh"
declare -rg TGZ_SLXADMIN="files/slx-admin.tar.gz"
declare -rg TGZ_DOZMOD="files/dozmod.tar.gz"
declare -rg TGZ_TASKMANAGER="files/taskmanager.tar.gz"
declare -rg TGZ_TFTP="files/syslinux.tar.gz"

cp "updater.template.sh" "$UPDATER" || perror "could not copy template"
chmod +x "$UPDATER"

addpayload () {
	echo -n "Includes $2: "
	local FILEVAR=$1
	local FILENAME=${!FILEVAR}
	if [ -e "${FILENAME}" ]; then
		echo "yes"
		patchtgz "$FILEVAR" "$FILENAME"
	else
		echo "no"
		patchtgz "$FILEVAR"
	fi
}

# Replace variables
# slxadmin version
echo -n "Includes SLX-Admin: "
if [ -e "$TGZ_SLXADMIN" ]; then
	echo "yes"
	VERS=$(tar -xOf "$TGZ_SLXADMIN" "inc/database.inc.php" | grep -A3 'function getExpectedSchemaVersion' | grep -o -E 'return [0-9]+' | grep -o -E '[0-9]+')
	[ -n "$VERS" ] || perror "Could not extract slx-admin version!"
	echo "Version: $VERS"
	sed -i "s/%TARGET_WEBIF_VERSION%/${VERS}/" "$UPDATER" || perror "could not patch slxadmin version in updater"
	patchtgz "TGZ_SLXADMIN" "$TGZ_SLXADMIN"
else
	echo "no"
	patchtgz "TGZ_SLXADMIN"
fi

addpayload "TGZ_DOZMOD" "Dozmod server"
addpayload "TGZ_TASKMANAGER" "Taskmanager"
addpayload "TGZ_TFTP" "TFTP/PxeLinux data"

# Last patch: Payload offset
# Calc payload offset, which is tricky as the size changes as we patch
SIZE=$(stat -c %s "$UPDATER")
SIZE=$(( ( $SIZE / 1024 ) * 1024 + 1024 ))
sed -i "s/%PAYLOAD_OFFSET%/${SIZE}/" "$UPDATER" || perror "could not patch payload variable in updater"
# Truncate, append payload
truncate --size="$SIZE" "$UPDATER" || perror "Could not truncate updater to $SIZE bytes"
tar ckz files/* >> "$UPDATER" || perror "Could not append payload to updater"