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path: root/lib/chef/knife/environment_from_file.rb
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#
# Author:: Stephen Delano (<stephen@chef.io>)
# Copyright:: Copyright 2010-2016, Chef Software Inc.
# License:: Apache License, Version 2.0
#
# 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 "chef/knife"

class Chef
  class Knife
    class EnvironmentFromFile < Knife

      deps do
        require "chef/environment"
        require "chef/knife/core/object_loader"
      end

      banner "knife environment from file FILE [FILE..] (options)"

      option :all,
      short: "-a",
      long: "--all",
      description: "Upload all environments"

      def loader
        @loader ||= Knife::Core::ObjectLoader.new(Chef::Environment, ui)
      end

      def environments_path
        @environments_path ||= "environments"
      end

      def find_all_environments
        loader.find_all_objects("./#{environments_path}/")
      end

      def load_all_environments
        environments = find_all_environments
        if environments.empty?
          ui.fatal("Unable to find any environment files in '#{environments_path}'")
          exit(1)
        end
        environments.each do |env|
          load_environment(env)
        end
      end

      def load_environment(env)
        updated = loader.load_from("environments", env)
        updated.save
        output(format_for_display(updated)) if config[:print_after]
        ui.info("Updated Environment #{updated.name}")
      end

      def run
        if config[:all] == true
          load_all_environments
        else
          if @name_args[0].nil?
            show_usage
            ui.fatal("You must specify a file to load")
            exit 1
          end

          @name_args.each do |arg|
            load_environment(arg)
          end
        end
      end
    end
  end
end