class Ferry::Configuration::Filter
Public Class Methods
new(type, values = nil)
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# File lib/ferry/configuration/filter.rb, line 6 def initialize type, values = nil raise "Invalid filter type #{type}" unless [:host,:role].include? type av = Array(values).dup @mode = case when av.size == 0 then :none when av.include?(:all) then :all else type end @rex = case @mode when :host av.map!{|v| (v.is_a?(String) && v =~ /^(?<name>[-A-Za-z0-9.]+)(,\g<name>)*$/) ? v.split(',') : v } av.flatten! av.map! do |v| case v when Regexp then v else vs = v.to_s vs =~ /^[-A-Za-z0-9.]+$/ ? vs : Regexp.new(vs) end end Regexp.union av when :role av.map!{|v| v.is_a?(String) ? v.split(',') : v } av.flatten! av.map! do |v| case v when Regexp then v else vs = v.to_s vs =~ %r{^/(.+)/$} ? Regexp.new($1) : %r{^#{vs}$} end end Regexp.union av else nil end end
Public Instance Methods
filter(servers)
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# File lib/ferry/configuration/filter.rb, line 43 def filter servers as = Array(servers) case @mode when :none then return [] when :all then return servers when :host as.select {|s| @rex.match s.to_s} when :role as.select { |s| s.is_a?(String) ? false : s.roles.any? {|r| @rex.match r} } end end