#!/usr/bin/env bash
#
# Compile the Windows resources into the sources
#

set -eu -o pipefail

SCRIPTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
source $SCRIPTDIR/../build/.variables

RESOURCES=$SCRIPTDIR/../winresources

TEMPDIR=$(mktemp -d)
trap 'rm -rf $TEMPDIR' EXIT

if [ "$(go env GOHOSTOS)" == "windows" ]; then
	WINDRES=windres
	WINDMC=windmc
else
	# Cross compiling
	WINDRES=x86_64-w64-mingw32-windres
	WINDMC=x86_64-w64-mingw32-windmc
fi

# Generate a Windows file version of the form major,minor,patch,build (with any part optional)
VERSION_QUAD=$(echo -n $VERSION | sed -re 's/^([0-9.]*).*$/\1/' | tr . ,)

# Pass version and commit information into the resource compiler
defs=
[ ! -z $VERSION ]      && defs="$defs -D DOCKER_VERSION=\"$VERSION\""
[ ! -z $VERSION_QUAD ] && defs="$defs -D DOCKER_VERSION_QUAD=$VERSION_QUAD"
[ ! -z $GITCOMMIT ]    && defs="$defs -D DOCKER_COMMIT=\"$GITCOMMIT\""

function makeres {
	$WINDRES \
		-i $RESOURCES/$1 \
		-o $3 \
		-F $2 \
		--use-temp-file \
		-I $TEMPDIR \
		$defs
}

makeres docker.rc pe-x86-64 rsrc_amd64.syso
makeres docker.rc pe-i386   rsrc_386.syso