Cross build script for Go project on drone.io (using godep). "Artifacts" setting on drone.io must be set "artifacts/bin/*/*"

cross_build_go_droneio.sh

BINNAME=YOUR_APP_NAME

export GO_VERSION=1.3.3

pushd ~
wget -q https://storage.googleapis.com/golang/go${GO_VERSION}.linux-amd64.tar.gz
tar zxf go${GO_VERSION}.linux-amd64.tar.gz
popd

export GOROOT=~/go
export PATH=${GOROOT}/bin:${PATH}

go env
go version

rm -rf ${GOROOT}/src/pkg/appengine
rm -rf ${GOROOT}/src/pkg/appengine_internal

go get github.com/tools/godep

godep get
godep go test ./...

OSS=("linux" "darwin" "windows")
ARCHS=("amd64" "386")

pushd ${GOROOT}/src
for os in ${OSS[@]}
do
  for arch in ${ARCHS[@]}
  do
    GOOS=${os} GOARCH=${arch} ./make.bash --no-clean > /dev/null 2>&1
  done
done
popd

for os in ${OSS[@]}
do
  for arch in ${ARCHS[@]}
  do
    GOOS=${os} GOARCH=${arch} godep go build -o ${GOPATH}/bin/${os}_${arch}/${BINNAME}
  done
done

mkdir artifacts
cp -r ${GOPATH}/bin artifacts/