add draft of carton_exec LWRP

cookbooks/carton/providers/exec.rb

@@ -0,0 +1,62 @@
+#
+# Author:: David A. Golden
+# Cookbook Name:: perlbrew
+# Provider:: carton_app
+#
+# Copyright:: 2012, David A. Golden <dagolden@cpan.org>
+#
+# 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/shell_out'
+require 'chef/mixin/language'
+include Chef::Mixin::ShellOut
+
+action :run do
+  # XXX should probably fail if no carton.lock is found in cwd
+
+  app_perlbrew       = new_resource.perlbrew
+  app_cwd            = new_resource.cwd
+  app_command        = "carton exec -I lib -- #{new_resource.command}"
+
+  # hash carton.lock to ensure library dir is unique to a lock file
+  lock_hash = `sha1sum #{app_cwd}/carton.lock`[0..7]
+
+  app_local          = "local-#{app_perlbrew}-#{lock_hash}"
+  app_env            = new_resource.environment.merge({
+    'PERLBREW_ROOT'     => node['perlbrew']['perlbrew_root'],
+    'PERLBREW_HOME'     => node['perlbrew']['perlbrew_root'],
+    'PERL_CARTON_PATH'  => app_local
+  })
+
+  # ensure we have perl + carton for requested perlbrew version
+  carton_perlbrew = app_perlbrew || node['carton']['perlbrew']
+  carton_lib = "#{carton_perlbrew}@carton"
+
+  perlbrew_perl carton_perlbrew
+  perlbrew_lib carton_lib
+  perlbrew_cpanm 'Carton' do
+    perlbrew carton_lib
+    modules ['Carton']
+  end
+
+  perlbrew_run app_command do
+    perlbrew carton_lib
+    environment app_env
+    cwd app_cwd
+  end
+
+  new_resource.updated_by_last_action(true)
+end
+
+# :enable :disable :nothing :start :stop :restart :reload}

cookbooks/carton/resources/exec.rb

@@ -0,0 +1,32 @@
+#
+# Author:: David A. Golden
+# Cookbook Name:: perlbrew
+# Resource:: perlbrew_service
+#
+# Copyright:: 2012, David A. Golden <dagolden@cpan.org>
+#
+# 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.
+#
+
+actions :run
+
+attribute :command, :name_attribute => true, :kind_of => String
+attribute :perlbrew, :kind_of => String, :required => true
+attribute :cwd, :kind_of => String, :required => true
+attribute :environment, :kind_of => Hash, :default => {}
+
+def initialize(*args)
+  super
+  @action = :run
+end
+