A "pure" Heroku buildpack for Golang, uses GOPATH, no Godep. Make in a repo with files under bin/detect and bin/compile

bin-compile

#!/bin/bash
BUILD_DIR=$1
CACHE_DIR=$2
ENV_DIR=$3

GOBALL=go1.4.1.linux-amd64.tar.gz

mkdir -p $CACHE_DIR
export PATH=$PATH:$CACHE_DIR/go/bin

build_go() {
	cd $CACHE_DIR
	if [[ ! -d go ]]; then
		if [[ ! -r $GOBALL ]]; then
			wget https://storage.googleapis.com/golang/$GOBALL
		fi
		tar zxf $GOBALL
		rm $GOBALL
	fi
}

build_app() {
	cd $BUILD_DIR
	export GOPATH=$BUILD_DIR
	# TODO: make build targets configurable from metadata
	go get ./...
	go install ./...
}

echo '-----> Fetching Go'
build_go

echo '-----> Compiling go application'
build_app

bin-detect

#!/bin/bash
BUILD_DIR=$1
find ${BUILD_DIR}/src | grep '.go$' >/dev/null || exit 1
echo Go
exit 0