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#
# Author:: Christopher Walters (<cw@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.
#
module Merb
module TarballHelper
class FileParameterException < StandardError ; end
def validate_file_parameter(cookbook_name, file_param)
raise FileParameterException, "missing required parameter: file" unless file_param
raise FileParameterException, "invalid parameter: file must be a File" unless file_param.respond_to?(:has_key?) && file_param[:tempfile].respond_to?(:read)
tarball_path = file_param[:tempfile].path
raise FileParameterException, "invalid tarball: (try creating with 'tar czf cookbook.tar.gz cookbook/')" unless system("tar", "tzf", tarball_path)
entry_roots = `tar tzf #{tarball_path}`.split("\n").map{|e|(e.split('/')-['.']).first}.uniq
raise FileParameterException, "invalid tarball: tarball root must contain #{cookbook_name}" unless entry_roots.include?(cookbook_name)
end
def sandbox_base
Chef::Config.sandbox_path
end
def sandbox_location(sandbox_guid)
File.join(sandbox_base, sandbox_guid)
end
def sandbox_checksum_location(sandbox_guid, checksum)
File.join(sandbox_location(sandbox_guid), checksum)
end
def cookbook_base
[Chef::Config.cookbook_path].flatten.first
end
def cookbook_location(cookbook_name)
File.join(cookbook_base, cookbook_name)
end
def cookbook_base
[Chef::Config.cookbook_path].flatten.first
end
def cookbook_location(cookbook_name)
File.join(cookbook_base, cookbook_name)
end
def cookbook_location(cookbook_name)
File.join(cookbook_base, cookbook_name)
end
def get_or_create_cookbook_tarball_location(cookbook_name)
tarball_location = cookbook_tarball_location(cookbook_name)
unless File.exists? tarball_location
args = ["tar", "-C", cookbook_base, "-czf", tarball_location, cookbook_name]
Chef::Log.debug("Tarball for #{cookbook_name} not found, so creating at #{tarball_location} with '#{args.join(' ')}'")
FileUtils.mkdir_p(Chef::Config.cookbook_tarball_path)
system(*args)
end
tarball_location
end
def expand_tarball_and_put_in_repository(cookbook_name, file)
# untar cookbook tarball into tempdir
tempdir = File.join("#{file.path}.data")
Chef::Log.debug("Creating #{tempdir} and untarring #{file.path} into it")
FileUtils.mkdir_p(tempdir)
raise "Could not untar file" unless system("tar", "xzf", file.path, "-C", tempdir)
cookbook_path = cookbook_location(cookbook_name)
tarball_path = cookbook_tarball_location(cookbook_name)
# clear any existing cookbook components and move tempdir into the repository
Chef::Log.debug("Moving #{tempdir} to #{cookbook_path}")
FileUtils.rm_rf(cookbook_path)
FileUtils.mkdir_p(cookbook_path)
Dir[File.join(tempdir, cookbook_name, "*")].each{|e| FileUtils.mv(e, cookbook_path)}
# clear the existing tarball (if exists) and move the downloaded tarball to the cache
Chef::Log.debug("Moving #{file.path} to #{tarball_path}")
FileUtils.mkdir_p(Chef::Config.cookbook_tarball_path)
FileUtils.rm_f(tarball_path)
FileUtils.mv(file.path, tarball_path)
end
end
end
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