2a4db54db9
* Throw away old system * Add new system * Add new example files * Replace all calls * add the most important docs * Add Specs * rename disable_ssl_requirement to require_ssl * cloudfiles isn't used/called in our code * since community_spotlight.list is only used as enable flag replace it with such one and remove all legacy and irelevant codepaths around it * die if session secret is unset and on heroku * First basic infrastructure for version information
52 lines
1.7 KiB
Ruby
52 lines
1.7 KiB
Ruby
require 'yaml'
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module Configuration::Provider
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# This provider tries to open a YAML file and does in nested lookups
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# in it.
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class YAML < Base
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# @param file [String] the path to the file
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# @param opts [Hash]
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# @option opts [String] :namespace optionally set this as the root
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# @option opts [Boolean] :required wheter or not to raise an error if
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# the file or the namespace, if given, is not found. Defaults to +true+.
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# @raise [ArgumentError] if the namespace isn't found in the file
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# @raise [Errno:ENOENT] if the file isn't found
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def initialize(file, opts = {})
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@settings = {}
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required = opts.has_key?(:required) ? opts.delete(:required) : true
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@settings = ::YAML.load_file(file)
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namespace = opts.delete(:namespace)
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unless namespace.nil?
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actual_settings = lookup_in_hash(namespace.split("."), @settings)
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unless actual_settings.nil?
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@settings = actual_settings
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else
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raise ArgumentError, "Namespace #{namespace} not found in #{file}" if required
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end
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end
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rescue Errno::ENOENT => e
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$stderr.puts "WARNING: configuration file #{file} not found, ensure it's present"
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raise e if required
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end
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def lookup_path(settings_path, *args)
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lookup_in_hash(settings_path, @settings)
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end
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private
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def lookup_in_hash(setting_path, hash)
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setting = setting_path.shift
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if hash.has_key?(setting)
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if setting_path.length > 0 && hash[setting].is_a?(Hash)
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return lookup_in_hash(setting_path, hash[setting]) if setting.length > 1
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else
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return hash[setting]
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end
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end
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end
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end
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end
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