#!/bin/sh
#
# This file is part of the coreboot project.
#
# Copyright (C) 2013 Google Inc.
# Copyright (C) 2014 Sage Electronic Engineering, LLC.
#

EXIT_SUCCESS=0
EXIT_FAILURE=1

# Stuff from command-line switches
REMOTE_HOST=""
CLOBBER_OUTPUT=0
UPLOAD_RESULTS=0
SERIAL_PORT_SPEED=115200

# Used to specify whether a command should always be run locally or
# if command should be run remoteley when a remote host is specified.
LOCAL=0
REMOTE=1
FATAL=0
NONFATAL=1

# test a command
#
# $1: 0 ($LOCAL) to run command locally,
#     1 ($REMOTE) to run remotely if remote host defined
# $2: command to test
# $3: 0 ($FATAL) Exit with an error if the command fails
#     1 ($NONFATAL) Don't exit on command test failure
test_cmd()
{
	local rc

	if [ -e "$2" ]; then
		return
	fi

	if [ "$1" -eq "$REMOTE" ] && [ -n "$REMOTE_HOST" ]; then
		ssh root@${REMOTE_HOST} which "$2" > /dev/null
		rc=$?
	else
		which "$2" >/dev/null
		rc=$?
	fi

	if [ $rc -eq 0 ]; then
		return 0
	fi

	if [ "$3" = "1" ]; then
		return 1
	fi

	echo "$2 not found"
	exit $EXIT_FAILURE
}

_cmd()
{
	if [ -e "$2" ]; then
		return $EXIT_FAILURE
	fi

	if [ -n "$3" ]; then
		pipe_location="${3}"
	else
		pipe_location="/dev/null"
	fi

	if [ "$1" -eq "$REMOTE" ] && [ -n "$REMOTE_HOST" ]; then
		ssh root@${REMOTE_HOST} "$2" > "$pipe_location" 2>&1
	else
		$2 > "$pipe_location" 2>&1
	fi

	return $?
}

# run a command
#
# $1: 0 ($LOCAL) to run command locally,
#     1 ($REMOTE) to run remotely if remote host defined
# $2: command
# $3: filename to direct output of command into
cmd()
{
	_cmd $1 "$2" "$3"

	if [ $? -eq 0 ]; then
		return
	fi

	echo "Failed to run \"$2\", aborting"
	rm -f "$3"	# don't leave an empty file
	exit $EXIT_FAILURE
}

# run a command where failure is considered to be non-fatal
#
# $1: 0 ($LOCAL) to run command locally,
#     1 ($REMOTE) to run remotely if remote host defined
# $2: command
# $3: filename to direct output of command into
cmd_nonfatal()
{
	_cmd $1 "$2" "$3"

	if [ $? -eq 0 ]; then
		return
	fi

	echo "Failed to run \"$2\", ignoring"
	rm -f "$3"	# don't leave an empty file
}

# read from a serial port device
#
# $1: serial device to read from
# $2: serial port speed
# $3: filename to direct output of command into
get_serial_bootlog () {

	if [ ! -c "$1" ]; then
		echo "$1 is not a valid serial device"
		exit $EXIT_FAILURE
	fi

	# make the text more noticible
	test_cmd $LOCAL "tput" $NONFATAL
	tput_not_available=$?
	if [ $tput_not_available -eq 0 ]; then
		tput bold
		tput setaf 10 # set bright green
	fi

	echo
	echo "Waiting to receive boot log from $1"
	echo "Press [Enter] when the boot is complete and the"
	echo "system is ready for ssh to get the dmesg log."

	if [ $tput_not_available -eq 0 ]; then
		tput sgr0
	fi

	# set up the serial port
	cmd $LOCAL "stty -F $1 $2 cs8 -cstopb"

	# read from the serial port - user must press enter when complete
	test_cmd $LOCAL "tee"
	cat "$SERIAL_DEVICE" | tee "$3" &
	PID=$!

	read
	kill "$PID" 2>/dev/null &

	# remove the binary zero value that gets inserted into the file.
	sed -i 's/\x00//' "$3"
}

show_help() {
	echo "Usage:
	${0} <option>

Options
    -h
        Show this message.
    -C
        Clobber temporary output when finished. Useful for debugging.
    -r  <host>
        Obtain machine information from remote host (using ssh).
    -s  </dev/xxx>
        Obtain boot log via serial device.
    -S  <speed>
        Set the port speed for the serial device (Default is 115200).
    -u
        Upload results to coreboot.org.
"
}

while getopts "Chr:s:S:u" opt; do
	case "$opt" in
		h)
			show_help
			exit $EXIT_SUCCESS
			;;
		C)
			CLOBBER_OUTPUT=1
			;;
		r)
			REMOTE_HOST="$OPTARG"
			;;
		s)
			SERIAL_DEVICE="$OPTARG"
			;;
		S)
			SERIAL_PORT_SPEED="$OPTARG"
			;;
		u)
			UPLOAD_RESULTS=1
			;;
	esac
done

grep -rH 'coreboot.org' .git/config >/dev/null 2>&1
if [ $? -ne 0 ]; then
	echo "Script must be run from root of coreboot directory"
	exit $EXIT_FAILURE
fi

# Results will be placed in a temporary location until we're ready to upload.
# If the user does not wish to upload, results will remain in /tmp.
tmpdir=$(mktemp -d --tmpdir coreboot_board_status.XXXXXXXX)

cbfstool_cmd="build/cbfstool"
if test ! -x build/cbfstool; then
	make -C util/cbfstool/ && cp util/cbfstool/cbfstool build/cbfstool
fi
test_cmd $LOCAL "$cbfstool_cmd"
$cbfstool_cmd build/coreboot.rom extract -n config -f ${tmpdir}/config.txt
$cbfstool_cmd build/coreboot.rom print > ${tmpdir}/cbfs.txt

# Obtain board and revision info to form the directory structure:
# <vendor>/<board>/<revision>/<timestamp>
mainboard_dir="$(grep CONFIG_MAINBOARD_DIR ${tmpdir}/config.txt | awk -F '"' '{ print $2 }')"
vendor=$(echo "$mainboard_dir" | awk -F '/' '{ print $1 }')
mainboard=$(echo "$mainboard_dir" | awk -F '/' '{ print $2 }')

getrevision="util/board_status/getrevision.sh"
test_cmd $LOCAL $getrevision
tagged_version=$($getrevision -T)
timestamp=$($getrevision -t)

results="${vendor}/${mainboard}/${tagged_version}/${timestamp}"

echo "Temporarily placing output in ${tmpdir}/${results}"
mkdir -p "${tmpdir}/${results}"

mv "${tmpdir}/config.txt" "${tmpdir}/${results}"
mv "${tmpdir}/cbfs.txt" "${tmpdir}/${results}"

touch ${tmpdir}/${results}/revision.txt
printf "Local revision: %s\n" "$($getrevision -l)" >> ${tmpdir}/${results}/revision.txt
printf "Tagged revision: %s\n" "${tagged_version}" >> ${tmpdir}/${results}/revision.txt
printf "Upstream revision: %s\n" $($getrevision -u) >> ${tmpdir}/${results}/revision.txt
printf "Upstream URL: %s\n" $($getrevision -U)>> ${tmpdir}/${results}/revision.txt
printf "Timestamp: %s\n" "$timestamp" >> ${tmpdir}/${results}/revision.txt

if [ -z "$SERIAL_DEVICE" ]; then
	test_cmd $REMOTE "cbmem"
	cmd $REMOTE "cbmem -c" "${tmpdir}/${results}/coreboot_console.txt"
	cmd_nonfatal $REMOTE "cbmem -t" "${tmpdir}/${results}/coreboot_timestamps.txt"
else
	get_serial_bootlog "$SERIAL_DEVICE" "$SERIAL_PORT_SPEED" "${tmpdir}/${results}/coreboot_console.txt"
fi

cmd $REMOTE dmesg "${tmpdir}/${results}/kernel_log.txt"

#
# Finish up.
#
coreboot_dir=$(pwd)
if [ $UPLOAD_RESULTS -eq 1 ]; then
	# extract username from ssh://<username>@review.coreboot.org/blah
	bsrepo=$(git config --get remote.origin.url | sed "s,\(.*\)/coreboot,\1/board-status,")

	cd "util/board_status/"
	if [ ! -e "board-status" ]; then
		# FIXME: the board-status directory might get big over time.
		# Is there a way we can push the results without fetching the
		# whole repo?
		git clone $bsrepo
		if [ $? -ne 0 ]; then
			echo "Error cloning board-status repo, aborting."
			exit $EXIT_FAILURE
		fi
	fi

	cd "board-status"
	echo "Copying results to $(pwd)/${results}"

	# Note: Result directory should be unique due to the timestamp.
	cp -R "${tmpdir}/${vendor}" .

	echo "Uploading results"
	git add "${vendor}"
	git commit -a -m "${mainboard_dir}/${tagged_version}/${timestamp}"
	count=0
	until git push origin || test $count -eq 3; do
	        git pull --rebase
		count=$((count + 1))
	done

	# Results have been uploaded so it's pointless to keep the
	# temporary files around.
	rm -rf "${tmpdir}"
	if test $count -eq 3; then
		echo "Error uploading to board-status repo, aborting."
		exit $EXIT_FAILURE
	fi
fi
cd "$coreboot_dir"

if [ $CLOBBER_OUTPUT -eq 1 ]; then
	rm -rf ${tmpdir}
else
	echo
	echo "output files are in ${tmpdir}/${results}"
fi

exit $EXIT_SUCCESS