#!/bin/sh

set -e

usage() {
	echo "Usage: dir"
	exit 1
}

[ $# = 0 ] && usage

dir="$1"

cd "$dir"

# Use '-mod=vendor' for builds which have switched to go modules
[ -f go.mod -a -d vendor ] && export GOFLAGS="-mod=vendor"

# lint before building
>&2 echo "gofmt..."
test -z "$(gofmt -s -l .| grep -v .pb. | grep -v vendor/ | tee /dev/stderr)"

>&2 echo "govet..."
test -z "$(GOOS=linux go vet -printf=false . 2>&1 | grep -v "^#" | grep -v vendor/ | tee /dev/stderr)"

>&2 echo "golint..."
test -z "$(find . -type f -name "*.go" -not -path "*/vendor/*" -not -name "*.pb.*" -exec golint {} \; | tee /dev/stderr)"

>&2 echo "ineffassign..."
test -z "$(find . -type f -name "*.go" -not -path "*/vendor/*" -not -name "*.pb.*" -exec ineffassign {} \; | tee /dev/stderr)"

>&2 echo "go test..."
go test

>&2 echo "go build..."

export CGO_ENABLED=0
linkmode=""
piemode=""

if [ "${REQUIRE_CGO}" = 1 ]; then
	export CGO_ENABLED=1
	linkmode="-linkmode=external"
	piemode="-buildmode=pie"
fi

go install ${piemode} -ldflags "${linkmode} -s -w ${ldflags} -extldflags \"-fno-PIC -static\""