# Encoding: utf-8

# Cloud Foundry Java Buildpack

# Copyright 2013-2016 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.

require 'java_buildpack/util/play'

require 'java_buildpack/util/play/base'

require 'java_buildpack/util/start_script'

require 'shellwords'

module JavaBuildpack

module Util

module Play

# Encapsulate inspection and modification of Play applications from Play 2.2.0 onwards.

class Post22 < Base

protected

# (see JavaBuildpack::Util::Play::Base#augment_classpath)

def augment_classpath

additional_classpath = @droplet.additional_libraries.sort.map do |additional_library|

"$app_home/#{additional_library.relative_path_from(start_script.dirname)}"

end

update_file start_script, /^declare -r app_classpath=\"(.*)\"$/,

"declare -r app_classpath=\"#{additional_classpath.join(':')}:\\1\""

end

# (see JavaBuildpack::Util::Play::Base#java_opts)

def java_opts

java_opts = @droplet.java_opts

java_opts.each do |option|

next unless option.shellsplit.length > 1 && !bash_expression?(option)

raise "Invalid Java option contains more than one option: '#{option}'"

end

java_opts.map { |option| option == '$CALCULATED_MEMORY' ? '${CALCULATED_MEMORY//-/-J-}' : "-J#{option}" }

end

# (see JavaBuildpack::Util::Play::Base#lib_dir)

def lib_dir

root + 'lib'

end

# (see JavaBuildpack::Util::Play::Base#start_script)

def start_script

JavaBuildpack::Util.start_script root

end

# Returns the root of the play application

#

# @return [Pathname] the root of the play application

def root

raise "Method 'root' must be defined"

end

private

def bash_expression?(option)

option =~ /\$\(expr/

end

end

end

end

end