Permalink
Fetching contributors…
Cannot retrieve contributors at this time
122 lines (99 sloc) 3.82 KB
# Cloud Foundry Java Buildpack
# Copyright 2013-2017 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/component/versioned_dependency_component'
require 'java_buildpack/container'
require 'java_buildpack/logging/logger_factory'
require 'java_buildpack/util/class_file_utils'
require 'java_buildpack/util/file_enumerable'
require 'java_buildpack/util/groovy_utils'
require 'java_buildpack/util/qualify_path'
require 'java_buildpack/util/ratpack_utils'
require 'pathname'
require 'set'
require 'tmpdir'
module JavaBuildpack
module Container
# Encapsulates the detect, compile, and release functionality for applications running non-compiled Groovy
# applications.
class Groovy < JavaBuildpack::Component::VersionedDependencyComponent
include JavaBuildpack::Util
# Creates an instance
#
# @param [Hash] context a collection of utilities used the component
def initialize(context)
@logger = JavaBuildpack::Logging::LoggerFactory.instance.get_logger Groovy
@ratpack_utils = JavaBuildpack::Util::RatpackUtils.new
super(context) { |candidate_version| candidate_version.check_size(3) }
end
# (see JavaBuildpack::Component::BaseComponent#compile)
def compile
download_zip
end
# (see JavaBuildpack::Component::BaseComponent#release)
def release
add_libs
[
@droplet.environment_variables.as_env_vars,
@droplet.java_home.as_env_var,
@droplet.java_opts.as_env_var,
'exec',
qualify_path(@droplet.sandbox + 'bin/groovy', @droplet.root),
@droplet.additional_libraries.as_classpath,
relative_main_groovy,
relative_other_groovy
].flatten.compact.join(' ')
end
protected
# (see JavaBuildpack::Component::VersionedDependencyComponent#supports?)
def supports?
JavaBuildpack::Util::ClassFileUtils.class_files(@application).empty? && main_groovy &&
!@ratpack_utils.is?(@application)
end
private
def add_libs
(@droplet.root + '**/*.jar').glob.each { |jar| @droplet.additional_libraries << jar }
end
def main_groovy
candidates = JavaBuildpack::Util::GroovyUtils.groovy_files(@application)
candidate = []
candidate << main_method(candidates)
candidate << non_pogo(candidates)
candidate << shebang(candidates)
candidate = Set.new(candidate.flatten.compact).to_a
candidate.size == 1 ? candidate[0] : nil
end
def other_groovy
other_groovy = JavaBuildpack::Util::GroovyUtils.groovy_files(@application)
other_groovy.delete(main_groovy)
other_groovy
end
def main_method(candidates)
select(candidates) { |file| JavaBuildpack::Util::GroovyUtils.main_method? file }
end
def non_pogo(candidates)
reject(candidates) { |file| JavaBuildpack::Util::GroovyUtils.pogo? file }
end
def relative_main_groovy
main_groovy.relative_path_from(@application.root)
end
def relative_other_groovy
other_groovy.map { |gf| gf.relative_path_from(@application.root) }
end
def shebang(candidates)
select(candidates) { |file| JavaBuildpack::Util::GroovyUtils.shebang? file }
end
end
end
end