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#
# Author:: Tim Smith (<tsmith@chef.io>)
# Copyright:: 2016-2019, 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_relative "../resource"
class Chef
class Resource
# @since 13.3
class AptPreference < Chef::Resource
unified_mode true
resource_name :apt_preference
provides(:apt_preference) { true }
description "The apt_preference resource allows for the creation of APT preference files. Preference files are used to control which package versions and sources are prioritized during installation."
introduced "13.3"
property :package_name, String,
name_property: true,
description: "An optional property to set the package name if it differs from the resource block's name.",
regex: [/^([a-z]|[A-Z]|[0-9]|_|-|\.|\*|\+)+$/],
validation_message: "The provided package name is not valid. Package names can only contain alphanumeric characters as well as _, -, +, or *!"
property :glob, String,
description: "Pin by glob() expression or with regular expressions surrounded by /."
property :pin, String,
description: "The package version or repository to pin.",
required: true
property :pin_priority, [String, Integer],
description: "Sets the Pin-Priority for a package.",
required: true
default_action :add
allowed_actions :add, :remove
APT_PREFERENCE_DIR = "/etc/apt/preferences.d".freeze
action_class do
# Build preferences.d file contents
def build_pref(package_name, pin, pin_priority)
"Package: #{package_name}\nPin: #{pin}\nPin-Priority: #{pin_priority}\n"
end
def safe_name(name)
name.tr(".", "_").gsub("*", "wildcard")
end
end
action :add do
return unless debian?
preference = build_pref(
new_resource.glob || new_resource.package_name,
new_resource.pin,
new_resource.pin_priority
)
directory APT_PREFERENCE_DIR do
mode "0755"
action :create
end
sanitized_prefname = safe_name(new_resource.package_name)
# cleanup any existing pref files w/o the sanitized name (created by old apt cookbook)
if (sanitized_prefname != new_resource.package_name) && ::File.exist?("#{APT_PREFERENCE_DIR}/#{new_resource.package_name}.pref")
logger.warn "Replacing legacy #{new_resource.package_name}.pref with #{sanitized_prefname}.pref in #{APT_PREFERENCE_DIR}"
file "#{APT_PREFERENCE_DIR}/#{new_resource.package_name}.pref" do
action :delete
end
end
# cleanup any existing pref files without the .pref extension (created by old apt cookbook)
if ::File.exist?("#{APT_PREFERENCE_DIR}/#{new_resource.package_name}")
logger.warn "Replacing legacy #{new_resource.package_name} with #{sanitized_prefname}.pref in #{APT_PREFERENCE_DIR}"
file "#{APT_PREFERENCE_DIR}/#{new_resource.package_name}" do
action :delete
end
end
file "#{APT_PREFERENCE_DIR}/#{sanitized_prefname}.pref" do
mode "0644"
content preference
action :create
end
end
action :remove do
return unless debian?
sanitized_prefname = safe_name(new_resource.package_name)
if ::File.exist?("#{APT_PREFERENCE_DIR}/#{sanitized_prefname}.pref")
logger.info "Un-pinning #{sanitized_prefname} from #{APT_PREFERENCE_DIR}"
file "#{APT_PREFERENCE_DIR}/#{sanitized_prefname}.pref" do
action :delete
end
end
end
end
end
end
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