[OC-3564] move core Chef to the repo root \o/ \m/

The opscode/chef repository now only contains the core Chef library code
used by chef-client, knife and chef-solo!

1 files changed, 229 insertions, 0 deletions

diff --git a/lib/chef/provider/package.rb b/lib/chef/provider/package.rb
new file mode 100644
index 0000000000..a28a6f93fb
--- /dev/null
+++ b/lib/chef/provider/package.rb
@@ -0,0 +1,229 @@
+#
+# Author:: Adam Jacob (<adam@opscode.com>)
+# Copyright:: Copyright (c) 2008 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/mixin/command'
+require 'chef/log'
+require 'chef/file_cache'
+require 'chef/platform'
+
+class Chef
+  class Provider
+    class Package < Chef::Provider
+
+      include Chef::Mixin::Command
+
+      attr_accessor :candidate_version
+      def initialize(new_resource, run_context)
+        super
+        @candidate_version = nil
+      end
+
+      def whyrun_supported?
+        true
+      end
+
+      def load_current_resource
+      end
+
+      def define_resource_requirements
+        requirements.assert(:install) do |a|
+          a.assertion { ((@new_resource.version != nil) && !(target_version_already_installed?)) \
+            || !(@current_resource.version.nil? && candidate_version.nil?)  }
+          a.failure_message(Chef::Exceptions::Package, "No version specified, and no candidate version available for #{@new_resource.package_name}")
+          a.whyrun("Assuming a repository that offers #{@new_resource.package_name} would have been configured")
+        end
+
+        requirements.assert(:upgrade) do |a|
+          # Can't upgrade what we don't have
+          a.assertion  { !(@current_resource.version.nil? && candidate_version.nil?) } 
+          a.failure_message(Chef::Exceptions::Package, "No candidate version available for #{@new_resource.package_name}")
+          a.whyrun("Assuming a repository that offers #{@new_resource.package_name} would have been configured")
+        end
+      end
+
+      def action_install
+        # If we specified a version, and it's not the current version, move to the specified version
+        if !@new_resource.version.nil? && !(target_version_already_installed?)
+          install_version = @new_resource.version
+        # If it's not installed at all, install it
+        elsif @current_resource.version.nil?
+          install_version = candidate_version
+        else
+          Chef::Log.debug("#{@new_resource} is already installed - nothing to do")
+          return
+        end
+
+        # We need to make sure we handle the preseed file
+        if @new_resource.response_file
+          if preseed_file = get_preseed_file(@new_resource.package_name, install_version)
+            converge_by("preseed package #{@new_resource.package_name}") do  
+              preseed_package(preseed_file)
+            end 
+          end
+        end
+        description = install_version ? "version #{install_version} of" : ""
+        converge_by("install #{description} package #{@new_resource.package_name}") do
+          @new_resource.version(install_version)
+          install_package(@new_resource.package_name, install_version)
+        end
+      end
+
+      def action_upgrade
+        if candidate_version.nil?
+          Chef::Log.debug("#{@new_resource} no candidate version - nothing to do")
+        elsif @current_resource.version == candidate_version
+          Chef::Log.debug("#{@new_resource} is at the latest version - nothing to do")
+        else
+          @new_resource.version(candidate_version)
+          orig_version = @current_resource.version || "uninstalled"
+          converge_by("upgrade package #{@new_resource.package_name} from #{orig_version} to #{candidate_version}") do
+            status = upgrade_package(@new_resource.package_name, candidate_version)
+            Chef::Log.info("#{@new_resource} upgraded from #{orig_version} to #{candidate_version}")
+          end
+        end
+      end
+
+      def action_remove
+        if removing_package?
+          description = @new_resource.version ? "version #{@new_resource.version} of " :  ""
+          converge_by("remove #{description} package #{@current_resource.package_name}") do
+            remove_package(@current_resource.package_name, @new_resource.version)
+            Chef::Log.info("#{@new_resource} removed")
+          end
+        else
+          Chef::Log.debug("#{@new_resource} package does not exist - nothing to do")
+        end
+      end
+
+      def removing_package?
+        if @current_resource.version.nil?
+          false # nothing to remove
+        elsif @new_resource.version.nil?
+          true # remove any version of a package
+        elsif @new_resource.version == @current_resource.version
+          true # remove the version we have
+        else
+          false # we don't have the version we want to remove
+        end
+      end
+
+      def action_purge
+        if removing_package?
+          description = @new_resource.version ? "version #{@new_resource.version} of" : ""
+          converge_by("purge #{description} package #{@current_resource.package_name}") do
+            purge_package(@current_resource.package_name, @new_resource.version)
+            Chef::Log.info("#{@new_resource} purged")
+          end
+        end
+      end
+
+      def action_reconfig
+        if @current_resource.version == nil then
+          Chef::Log.debug("#{@new_resource} is NOT installed - nothing to do")
+          return
+        end
+
+        unless @new_resource.response_file then
+          Chef::Log.debug("#{@new_resource} no response_file provided - nothing to do")
+          return
+        end
+
+        if preseed_file = get_preseed_file(@new_resource.package_name, @current_resource.version)
+          converge_by("reconfigure package #{@new_resource.package_name}") do
+            preseed_package(preseed_file)
+            status = reconfig_package(@new_resource.package_name, @current_resource.version)
+            Chef::Log.info("#{@new_resource} reconfigured")
+          end
+        else
+          Chef::Log.debug("#{@new_resource} preseeding has not changed - nothing to do")
+        end
+      end
+
+      def install_package(name, version)
+        raise Chef::Exceptions::UnsupportedAction, "#{self.to_s} does not support :install"
+      end
+
+      def upgrade_package(name, version)
+        raise Chef::Exceptions::UnsupportedAction, "#{self.to_s} does not support :upgrade"
+      end
+
+      def remove_package(name, version)
+        raise Chef::Exceptions::UnsupportedAction, "#{self.to_s} does not support :remove"
+      end
+
+      def purge_package(name, version)
+        raise Chef::Exceptions::UnsupportedAction, "#{self.to_s} does not support :purge"
+      end
+
+      def preseed_package(file)
+        raise Chef::Exceptions::UnsupportedAction, "#{self.to_s} does not support pre-seeding package install/upgrade instructions"
+      end
+
+      def reconfig_package(name, version)
+        raise( Chef::Exceptions::UnsupportedAction, "#{self.to_s} does not support :reconfig" )
+      end
+
+      def get_preseed_file(name, version)
+        resource = preseed_resource(name, version)
+        resource.run_action(:create)
+        Chef::Log.debug("#{@new_resource} fetched preseed file to #{resource.path}")
+
+        if resource.updated_by_last_action?
+          resource.path
+        else
+          false
+        end
+      end
+
+      def preseed_resource(name, version)
+        # A directory in our cache to store this cookbook's preseed files in
+        file_cache_dir = Chef::FileCache.create_cache_path("preseed/#{@new_resource.cookbook_name}")
+        # The full path where the preseed file will be stored
+        cache_seed_to = "#{file_cache_dir}/#{name}-#{version}.seed"
+
+        Chef::Log.debug("#{@new_resource} fetching preseed file to #{cache_seed_to}")
+
+        begin
+          remote_file = Chef::Resource::Template.new(cache_seed_to, run_context)
+          remote_file.cookbook_name = @new_resource.cookbook_name
+          remote_file.source(@new_resource.response_file)
+          remote_file.backup(false)
+          provider = Chef::Platform.provider_for_resource(remote_file, :create)
+          provider.template_location
+        rescue
+          Chef::Log.debug("#{@new_resource} fetching preseed file via Template resource failed, fallback to CookbookFile resource")
+          remote_file = Chef::Resource::CookbookFile.new(cache_seed_to, run_context)
+          remote_file.cookbook_name = @new_resource.cookbook_name
+          remote_file.source(@new_resource.response_file)
+          remote_file.backup(false)
+        end
+
+        remote_file
+      end
+
+      def expand_options(options)
+        options ? " #{options}" : ""
+      end
+
+      def target_version_already_installed?
+        @new_resource.version == @current_resource.version
+      end
+
+    end
+  end
+end