Create packager utility

Author: ameyer-pivotal

README.md

@@ -0,0 +1,11 @@
+# Node.js Cloud Native Buildpack
+
+## Usage
+
+To package this buildpack for consumption:
+
+```
+$ ./scripts/package.sh
+```
+
+This builds the buildpack's Go source using `GOOS=linux` by default. You can supply another value as the first argument to `package.sh`.

scripts/package.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+TARGET_OS=${1:-linux}
+
+cd "$( dirname "${BASH_SOURCE[0]}" )/.."
+
+echo "Target OS is $TARGET_OS"
+echo -n "Creating buildpack directory..."
+bp_dir=/tmp/"${PWD##*/}"_$(openssl rand -hex 12)
+mkdir $bp_dir
+echo "done"
+
+echo -n "Copying buildpack.toml..."
+cp buildpack.toml $bp_dir/buildpack.toml
+echo "done"
+
+# TODO: Update list of built binaries as they are written
+for b in detect build; do
+    echo -n "Building $b..."
+    GOOS=$TARGET_OS go build -o $bp_dir/bin/$b ./cmd/$b
+    echo "done"
+done
+echo "Buildpack packaged into: $bp_dir"