Add recipe to create bash completions for OSC

The new recipe "completions" can be executed in order to create a file
with command completions for the "openstack" command in bash. We want
this to be dynamic because the set of available commands depends on the
set of python plugins installed on the host.

Change-Id: Ib6549c00596f6560dab74491309b6b580ae7b312

attributes/default.rb

@@ -305,6 +305,9 @@ when 'debian'
   }
 end
 
+# The location of the OSC bash completion file
+default['openstack']['common']['bash_complete'] = '/etc/bash_completion.d/osc.bash_completion'
+
 # The name of the Chef role that installs the Keystone Service API
 default['openstack']['identity_service_chef_role'] = 'os-identity'
 

recipes/completions.rb

@@ -0,0 +1,25 @@
+# encoding: UTF-8
+#
+# Cookbook Name:: openstack-common
+# Recipe:: completions
+#
+# Copyright 2019, x-ion GmbH
+#
+# 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.
+#
+
+bash_complete = node['openstack']['common']['bash_complete']
+execute 'create OSC bash completions' do
+  command "openstack complete > #{bash_complete}"
+  creates bash_complete
+end

spec/completions_spec.rb

@@ -0,0 +1,12 @@
+# encoding: UTF-8
+require_relative 'spec_helper'
+
+describe 'openstack-common::completions' do
+  describe 'ubuntu' do
+    let(:runner) { ChefSpec::SoloRunner.new(UBUNTU_OPTS) }
+    let(:node) { runner.node }
+    let(:chef_run) do
+      runner.converge(described_recipe)
+    end
+  end
+end