#!/bin/bash -e
#
# Run all tests
#   ./test
#   ./test -v
#
# Run tests for one package
#   PKG=./foo ./test
#   PKG=bar ./test
#

# Invoke ./cover for HTML output
COVER=${COVER:-"-cover"}

PROJ="go-systemd"
ORG_PATH="github.com/coreos"
REPO_PATH="${ORG_PATH}/${PROJ}"

# As a convenience, set up a self-contained GOPATH if none set
if [ -z "$GOPATH" ]; then
	if [ ! -h gopath/src/${REPO_PATH} ]; then
		mkdir -p gopath/src/${ORG_PATH}
		ln -s ../../../.. gopath/src/${REPO_PATH} || exit 255
	fi
	export GOPATH=${PWD}/gopath
	go get -u github.com/godbus/dbus
	go get -u github.com/coreos/pkg/dlopen
fi

TESTABLE="activation daemon journal login1 unit"
FORMATTABLE="$TESTABLE sdjournal dbus machine1"
if [ -e "/run/systemd/system/" ]; then
	# if we're on a systemd-system, we can test sdjournal
	TESTABLE="${TESTABLE} sdjournal"
	if [ "$EUID" == "0" ]; then
		# testing actual systemd/machined behaviour requires root
		TESTABLE="${TESTABLE} dbus machine1"
	fi
fi


# user has not provided PKG override
if [ -z "$PKG" ]; then
	TEST=$TESTABLE
	FMT=$FORMATTABLE

# user has provided PKG override
else
	# strip out slashes and dots from PKG=./foo/
	TEST=${PKG//\//}
	TEST=${TEST//./}

	# only run gofmt on packages provided by user
	FMT="$TEST"
fi

# split TEST into an array and prepend REPO_PATH to each local package
split=(${TEST// / })
TEST=${split[@]/#/${REPO_PATH}/}

echo "Running tests..."
go test -v ${COVER} $@ ${TEST}

echo "Checking gofmt..."
fmtRes=$(gofmt -l $FMT)
if [ -n "${fmtRes}" ]; then
	echo -e "gofmt checking failed:\n${fmtRes}"
	exit 255
fi

echo "Checking govet..."
vetRes=$(go vet $TEST)
if [ -n "${vetRes}" ]; then
	echo -e "govet checking failed:\n${vetRes}"
	exit 255
fi

echo "Checking for license header..."
licRes=$(for file in $(find . -type f -iname '*.go' ! -path './gopath/*'); do
		head -n3 "${file}" | grep -Eq "(Copyright|generated|GENERATED)" || echo -e "  ${file}"
	done;)
if [ -n "${licRes}" ]; then
	echo -e "license header checking failed:\n${licRes}"
	exit 255
fi


echo "Success"