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#!/usr/bin/env ruby
# Encoding: utf-8
# Cloud Foundry Java Buildpack
# Copyright (c) 2013 the original author or authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
$stdout.sync = true
$stderr.sync = true
$LOAD_PATH.unshift File.expand_path('../../lib', __FILE__)
require 'java_buildpack/buildpack'
build_dir = ARGV[0]
components = JavaBuildpack::Buildpack.with_buildpack(build_dir, 'Detect failed with exception %s') do |buildpack|
buildpack.detect
end.compact
if components.empty?
abort
else
str = components.join(' ')
puts str.length > 255 ? str.slice(0..251) + '...' : str
end