#!/bin/bash

LOG_FILE="../merge.log"
build_host="ka2"
build_dir="/scratch/sfr/next"
build_cmd="bin/build_next"
[ "$NEXT_BUILD_HOST" ] && build_host="$NEXT_BUILD_HOST"
[ "$NEXT_BUILD_DIR" ] && build_dir="$NEXT_BUILD_DIR"

no_build=false
[ "$1" = "-n" ] && {
	shift
	no_build=true
}

rev=$1
shift

[ -n "$1" ] && {
	build_host="$1"
	shift
}
[ -n "$1" ] && {
	build_dir="$1"
	shift
}

export NEXT_BUILD_HOST="$build_host"
export NEXT_BUILD_DIR="$build_dir"

log()
{
	echo "$@" | tee -a $LOG_FILE
}

execute()
{
	log "$" $@
	$@ 2>&1 | tee -a $LOG_FILE
	return ${PIPESTATUS[0]}
}

GIT_EDITOR=: execute git revert $rev || exit 1

$no_build && exit 0

git push -f "$build_host":"$build_dir" master:refs/heads/next || {
	echo git push failed 1>&2
	bash -i || exit
}
ssh "$build_host" "$build_cmd" || {
	echo Build failed 1>&2
	bash -i || exit
}

exit 0