#!/bin/bash
set -e

if ! test -e autogen/gen.go; then
	echo >&2 'error: generate must be run before crossbinary'
	false
fi

if [ -z "$1" ]; then
    # Remove windows platform because of
    # https://github.com/mailgun/log/issues/10
    OS_PLATFORM_ARG=(-os="darwin linux")
else
    OS_PLATFORM_ARG=($1)
fi

if [ -z "$2" ]; then
    OS_ARCH_ARG=(-arch="386 amd64 arm")
else
    OS_ARCH_ARG=($2)
fi

if [ -z "$VERSION" ]; then
    VERSION=$(git rev-parse HEAD)
fi

if [ -z "$DATE" ]; then
    DATE=$(date -u '+%Y-%m-%d_%I:%M:%S%p')
fi

# Get rid of existing binaries
rm -f dist/traefik_*

# Build binaries
gox -ldflags "-X main.Version=$VERSION -X main.BuildDate=$DATE" "${OS_PLATFORM_ARG[@]}" "${OS_ARCH_ARG[@]}" \
    -output="dist/traefik_{{.OS}}-{{.Arch}}"