Merge pull request #4422 from chef/tm/apt_update

Add an apt_update resource

4 files changed, 113 insertions, 0 deletions

diff --git a/lib/chef/provider/apt_update.rb b/lib/chef/provider/apt_update.rb
new file mode 100644
index 0000000000..00c3ad16bb
--- /dev/null
+++ b/lib/chef/provider/apt_update.rb
@@ -0,0 +1,78 @@
+#
+# Author:: Thom May (<thom@chef.io>)
+# Copyright:: Copyright (c) 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/resource"
+require "chef/dsl/declare_resource"
+
+class Chef
+  class Provider
+    class AptUpdate < Chef::Provider
+      include Chef::DSL::DeclareResource
+
+      provides :apt_update, os: "linux"
+
+      APT_CONF_DIR = "/etc/apt/apt.conf.d"
+      STAMP_DIR = "/var/lib/apt/periodic"
+
+      def whyrun_supported?
+        true
+      end
+
+      def load_current_resource
+      end
+
+      def action_periodic
+        if !apt_up_to_date?
+          converge_by "update new lists of packages" do
+            do_update
+          end
+        end
+      end
+
+      def action_update
+        converge_by "force update new lists of packages" do
+          do_update
+        end
+      end
+
+      private
+      # Determines whether we need to run `apt-get update`
+      #
+      # @return [Boolean]
+      def apt_up_to_date?
+        ::File.exist?("#{STAMP_DIR}/update-success-stamp") &&
+          ::File.mtime("#{STAMP_DIR}/update-success-stamp") > Time.now - new_resource.frequency
+      end
+
+      def do_update
+        [STAMP_DIR, APT_CONF_DIR].each do |d|
+          build_resource(:directory, d, caller[0]) do
+            recursive true
+          end.run_action(:create)
+        end
+
+        build_resource(:file, "#{APT_CONF_DIR}/15update-stamp", caller[0]) do
+          content "APT::Update::Post-Invoke-Success {\"touch #{STAMP_DIR}/update-success-stamp 2>/dev/null || true\";};"
+        end.run_action(:create_if_missing)
+
+        shell_out!("apt-get -q update")
+      end
+
+    end
+  end
+end
diff --git a/lib/chef/providers.rb b/lib/chef/providers.rb
index b024be5b62..935933d326 100644
--- a/lib/chef/providers.rb
+++ b/lib/chef/providers.rb
@@ -16,6 +16,7 @@
 # limitations under the License.
 #
 
+require "chef/provider/apt_update"
 require "chef/provider/batch"
 require "chef/provider/breakpoint"
 require "chef/provider/cookbook_file"
diff --git a/lib/chef/resource/apt_update.rb b/lib/chef/resource/apt_update.rb
new file mode 100644
index 0000000000..df2033b063
--- /dev/null
+++ b/lib/chef/resource/apt_update.rb
@@ -0,0 +1,33 @@
+#
+# Author:: Thom May (<thom@chef.io>)
+# Copyright:: Copyright (c) 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/resource"
+
+class Chef
+  class Resource
+    class AptUpdate < Chef::Resource
+      resource_name :apt_update
+      provides :apt_update, os: "linux"
+
+      property :frequency, Integer, default: 86_400
+
+      default_action :periodic
+      allowed_actions :update, :periodic
+    end
+  end
+end
diff --git a/lib/chef/resources.rb b/lib/chef/resources.rb
index dc1b195d25..647db5fc00 100644
--- a/lib/chef/resources.rb
+++ b/lib/chef/resources.rb
@@ -17,6 +17,7 @@
 #
 
 require "chef/resource/apt_package"
+require "chef/resource/apt_update"
 require "chef/resource/bash"
 require "chef/resource/batch"
 require "chef/resource/breakpoint"