a32f34b408
Knife-Zero doesn't include Berkshelf support, so vendoring everything in the repo is convenient again
78 lines
2.9 KiB
Ruby
78 lines
2.9 KiB
Ruby
#
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# Cookbook:: ohai
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# Library:: plugin_helpers
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#
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# Author:: Tim Smith (<tsmith@chef.io>)
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#
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# Copyright:: 2017-2018, Chef Software, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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module OhaiCookbook
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module PluginHelpers
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# return the path property if specified or
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# CHEF_CONFIG_PATH/ohai/plugins if a path isn't specified
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def desired_plugin_path
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if new_resource.path
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new_resource.path.chomp('/') # if the user gave us /foo/bar/ we need /foo/bar for later comparison
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else
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::File.join(chef_config_path, 'ohai', 'plugins')
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end
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end
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# return the chef config files dir or fail hard
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def chef_config_path
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if Chef::Config['config_file']
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::File.dirname(Chef::Config['config_file'])
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else
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Chef::Application.fatal!("No chef config file defined. Are you running \
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chef-solo? If so you will need to define a path for the ohai_plugin as the \
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path cannot be determined")
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end
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end
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# is the desired plugin dir in the ohai config plugin dir array?
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def in_plugin_path?(path)
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normalized_path = normalize_path(path)
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# get the directory where we plan to stick the plugin (not the actual file path)
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desired_dir = ::File.directory?(normalized_path) ? normalized_path : ::File.dirname(normalized_path)
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::Ohai::Config.ohai['plugin_path'].map { |x| normalize_path(x) }.any? do |d|
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desired_dir.start_with?(d)
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end
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end
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# return path to lower and with forward slashes so we can compare it
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# this works around the 3 different way we can represent windows paths
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def normalize_path(path)
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path.downcase.gsub(/\\+/, '/')
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end
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def add_to_plugin_path(path)
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::Ohai::Config.ohai['plugin_path'] << path # new format
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end
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# we need to warn the user that unless the path for this plugin is in Ohai's
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# plugin path already we're going to have to reload Ohai on every Chef run.
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# Ideally in future versions of Ohai /etc/chef/ohai/plugins is in the path.
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def plugin_path_warning
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Chef::Log.warn("The Ohai plugin_path does not include #{desired_plugin_path}. \
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Ohai will reload on each chef-client run in order to add this directory to the \
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path unless you modify your client.rb configuration to add this directory to \
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plugin_path. The plugin_path can be set via the chef-client::config recipe. \
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See 'Ohai Settings' at https://docs.chef.io/config_rb_client.html#ohai-settings \
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for more details.")
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end
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end
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end
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