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#
# Author:: Adam Jacob (<adam@opscode.com>)
# Copyright:: Copyright (c) 2009 Opscode, 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 CookbookDelete < Knife
attr_accessor :cookbook_name, :version
deps do
require 'chef/cookbook_version'
end
option :all, :short => '-a', :long => '--all', :boolean => true, :description => 'delete all versions'
option :purge, :short => '-p', :long => '--purge', :boolean => true, :description => 'Permanently remove files from backing data store'
banner "knife cookbook delete COOKBOOK VERSION (options)"
def run
confirm("Files that are common to multiple cookbooks are shared, so purging the files may disable other cookbooks. Are you sure you want to purge files instead of just deleting the cookbook") if config[:purge]
@cookbook_name, @version = name_args
if @cookbook_name && @version
delete_explicit_version
elsif @cookbook_name && config[:all]
delete_all_versions
elsif @cookbook_name && @version.nil?
delete_without_explicit_version
elsif @cookbook_name.nil?
show_usage
ui.fatal("You must provide the name of the cookbook to delete")
exit(1)
end
end
def delete_explicit_version
delete_object(Chef::CookbookVersion, "#{@cookbook_name} version #{@version}", "cookbook") do
delete_request("cookbooks/#{@cookbook_name}/#{@version}")
end
end
def delete_all_versions
confirm("Do you really want to delete all versions of #{@cookbook_name}")
delete_all_without_confirmation
end
def delete_all_without_confirmation
# look up the available versions again just in case the user
# got to the list of versions to delete and selected 'all'
# and also a specific version
@available_versions = nil
Array(available_versions).each do |version|
delete_version_without_confirmation(version)
end
end
def delete_without_explicit_version
if available_versions.nil?
# we already logged an error or 2 about it, so just bail
exit(1)
elsif available_versions.size == 1
@version = available_versions.first
delete_explicit_version
else
versions_to_delete = ask_which_versions_to_delete
delete_versions_without_confirmation(versions_to_delete)
end
end
def available_versions
@available_versions ||= rest.get("cookbooks/#{@cookbook_name}").map do |name, url_and_version|
url_and_version["versions"].map {|url_by_version| url_by_version["version"]}
end.flatten
rescue Net::HTTPServerException => e
if e.to_s =~ /^404/
ui.error("Cannot find a cookbook named #{@cookbook_name} to delete")
nil
else
raise
end
end
def ask_which_versions_to_delete
question = "Which version(s) do you want to delete?\n"
valid_responses = {}
available_versions.each_with_index do |version, index|
valid_responses[(index + 1).to_s] = version
question << "#{index + 1}. #{@cookbook_name} #{version}\n"
end
valid_responses[(available_versions.size + 1).to_s] = :all
question << "#{available_versions.size + 1}. All versions\n\n"
responses = ask_question(question).split(',').map { |response| response.strip }
if responses.empty?
ui.error("No versions specified, exiting")
exit(1)
end
versions = responses.map do |response|
if version = valid_responses[response]
version
else
ui.error("#{response} is not a valid choice, skipping it")
end
end
versions.compact
end
def delete_version_without_confirmation(version)
object = delete_request("cookbooks/#{@cookbook_name}/#{version}")
output(format_for_display(object)) if config[:print_after]
ui.info("Deleted cookbook[#{@cookbook_name}][#{version}]")
end
def delete_versions_without_confirmation(versions)
versions.each do |version|
if version == :all
delete_all_without_confirmation
break
else
delete_version_without_confirmation(version)
end
end
end
private
def delete_request(path)
path += "?purge=true" if config[:purge]
rest.delete(path)
end
end
end
end
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