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#
# Author:: Joshua Timberman <opensource@housepub.org>
# Copyright:: Copyright (c) 2012, Joshua Timberman
#
# 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.
#
# Usage:
# $ cd ~/Development/opscode/cookbooks/chef-server
# $ knife metadata name platforms
# name: chef-server
# maintainer: Opscode, Inc.
# license: Apache 2.0
require 'chef/knife'
module KnifePlugins
class Metadata < Chef::Knife
deps do
require 'chef/cookbook/metadata'
end
banner "knife metadata ATTRIBUTE"
option :cookbook_path,
:short => "-P PATH",
:long => "--cookbook-path PATH",
:description => "The path to a cookbook",
:default => "."
option :help,
:short => "-h",
:long => "--help",
:description => "Show this message",
:on => :tail,
:boolean => true,
:show_options => true,
:exit => 0
def run
valid_attributes = [
'name',
'description',
'long_description',
'maintainer',
'maintainer_email',
'license',
'platforms',
'dependencies',
'recommendations',
'suggestions',
'conflicting',
'providing',
'replacing',
'attributes',
'groupings',
'recipes',
'version'
]
md_path = ::File.join(config[:cookbook_path], "metadata.rb")
if ! File.exists?(md_path)
raise "Couldn't find a metadata.rb file. Are you in a cookbook's directory, or did you forget '-P PATH'?"
end
if valid_attributes.include?(@name_args[0])
md = Chef::Cookbook::Metadata.new
md.from_file(md_path)
@name_args.each do |attr|
attribute = {attr.to_sym => md.send(attr.to_sym)}
ui.output format_for_display(attribute)
end
else
ui.error "You asked for an attribute that isn't allowed in cookbook metadata."
ui.error "Valid attributes are #{valid_attributes.join(', ')}"
raise "Invalid argument."
end
end
end
end