Class: WCC::Conf

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/wcc.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Conf

Returns a new instance of Conf.



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# File 'lib/wcc.rb', line 112

def initialize
  @options = {}
  
  OptionParser.new do |opts|
    opts.banner =  "Usage: ruby wcc.rb [options] [config-yaml-file]"
    opts.banner += "\nOptions:\n"
    opts.on('-v', '--verbose', 'Output more information') do self[:verbose] = true end
    opts.on('-d', '--debug', 'Enable debug mode') do self[:debug] = true end
    opts.on('--cache-dir DIR', 'Save hash and diff files to DIR') do |dir| self[:cache_dir] = dir end
    opts.on('-s', '--simulate', 'Check for update but do not save hash or diff files') do self[:simulate] = true end
    opts.on('--clean', 'Remove all saved hash and diff files') do self[:clean] = true end
    opts.on('-t', '--tag TAG', 'Set TAG used in output') do |t| self[:tag] = t end
    opts.on('-n', '--no-mails', 'Do not notify users in any way') do self[:nomails] = true end
    opts.on('--show-config', 'Show config after loading config file (debug purposes)') do self[:show_config] = true end
    opts.on('-h', '-?', '--help', 'Display this screen') do
      puts opts
      exit
    end
  end.parse!
  
  WCC.logger.progname = 'wcc'

  # latest flag overrides everything
  WCC.logger.level = Logger::ERROR
  WCC.logger.level = Logger::INFO if self[:verbose]
  WCC.logger.level = Logger::DEBUG if self[:debug]
  
  WCC.logger.formatter = LogFormatter.new((self[:verbose] or self[:debug]))

  # main
  WCC.logger.info "web change checker (aka wcc) #{WCC::VERSION}"
  WCC.logger.info "Licensed under Apache License Version 2.0"
  
  WCC.logger.info "No config file given, using default 'conf.yml' file" if ARGV.length == 0

  self[:conf] = ARGV[0] || 'conf.yml'
  
  if !File.exists?(self[:conf])
    WCC.logger.fatal "Config file '#{self[:conf]}' does not exist!"
    Prog.exit 1
  end
  
  # register standard notificators - these are already loaded
  Notificators.map 'email', MailNotificator
  Notificators.map 'syslog', SyslogNotificator
  
  WCC.logger.debug "Load config from '#{self[:conf]}'"
  
  # may be false if file is empty
  yaml = YAML.load_file(self[:conf])
  
  # inject dummy value {} for 'email' in 'conf' section to make the parser
  # load MailNotificator and it's defaults even if the key is missing
  # since email has always been the backbone of wcc
  yaml = {'conf' => {'email' => {}}}.recursive_merge(yaml) if yaml.is_a?(Hash)
  
  if yaml.is_a?(Hash) and yaml['conf'].is_a?(Hash)
    yaml['conf'].each do |key,val|
      case key
      when 'cache_dir'
        @options[:cache_dir] ||= val
      when 'tag'
        @options[:tag] ||= val
      when 'filterd'
        @options[:filter_dir] ||= val
      when 'templated'
        @options[:template_dir] ||= val
      when 'stats'
        @options[:stats] ||= val
      else
        if not Notificators.mappings.include?(key)
          plugin_name = "wcc-#{key}-notificator"
          WCC.logger.info "Trying to load plugin #{plugin_name}..."
          begin
            require plugin_name
          rescue LoadError
            WCC.logger.error "Plugin #{plugin_name} not found - maybe try `gem install #{plugin_name}`"
            next
          end
        end
        Notificators.mappings[key].parse_conf(val).each { |k,v| @options[k] ||= v }
      end
    end
  end
  
  if self[:show_config]
    Conf.default.merge(@options).each do |k,v|
      puts "  #{k.to_s} => #{self[k]}"
    end
    Prog.exit 0
  end
  
  @recipients = {}
  WCC.logger.debug "Load recipients from '#{self[:conf]}'"
  # may be *false* if file is empty
  yaml = YAML.load_file(self[:conf])
  if not yaml
    WCC.logger.info "No recipients loaded"
  else
    yaml['recipients'].to_a.each do |yaml_rec|
      name = yaml_rec.keys.first
      rec = []
      yaml_rec[name].to_a.each do |yaml_way|
        # TODO: find options and pass them to every notificator
        if yaml_way.is_a?(Hash)
          new_notificator(name, yaml_way.keys.first, yaml_way[yaml_way.keys.first], rec)
        else
          new_notificator(name, yaml_way, nil, rec)
        end
      end
      @recipients[name] = rec
    end
  end
  
  # attach --no-mails filter
  WCC::Filters.add '--no-mails' do |data|
    !self[:nomails]
  end
end

Instance Attribute Details

#recipients ⇒ Object (readonly)

Returns the value of attribute recipients.



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# File 'lib/wcc.rb', line 86

def recipients
  @recipients
end

Class Method Details

.[](key) ⇒ Object 



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# File 'lib/wcc.rb', line 286

def self.[](key); Conf.instance[key] end

.default ⇒ Object 



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# File 'lib/wcc.rb', line 96

def self.default
  @default_conf ||= {
    :verbose => false,
    :debug => false,
    :simulate => false,
    :clean => false,
    :nomails => false,
    :stats => false,
    # when you want to use ./tmp it must be writeable
    :cache_dir => '/var/tmp/wcc',
    :tag => 'wcc',
    :filter_dir => './filter.d',
    :template_dir => './template.d'
  }
end

.file(path = nil) ⇒ Object 



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# File 'lib/wcc.rb', line 284

def self.file(path = nil); File.join(self[:cache_dir], path) end

.recipients ⇒ Object 



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# File 'lib/wcc.rb', line 280

def self.recipients
  return Conf.instance.recipients
end

.simulate? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/wcc.rb', line 285

def self.simulate?; self[:simulate] end

.sites ⇒ Object 



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# File 'lib/wcc.rb', line 232

def self.sites
  return @sites unless @sites.nil?
  
  @sites = []
  
  WCC.logger.debug "Load sites from '#{Conf[:conf]}'"
  # may be *false* if file is empty
  yaml = YAML.load_file(Conf[:conf])
  if not yaml
    WCC.logger.info "No sites loaded"
    return @sites
  end
  
  yaml['sites'].to_a.each do |yaml_site|
    # query --no-mails filter for every site
    frefs = [FilterRef.new('--no-mails')]
    (yaml_site['filters'] || []).each do |entry|
      if entry.is_a?(Hash)
        # hash containing only one key (filter id),
        # the value is the argument hash
        id = entry.keys[0]
        frefs << FilterRef.new(id, entry[id])
      else entry.is_a?(String)
        frefs << FilterRef.new(entry)
      end
    end
    
    if not yaml_site['cookie'].nil?
      cookie = File.open(yaml_site['cookie'], 'r') { |f| f.read }
    end
    
    @sites << Site.new(
      yaml_site['url'], 
      yaml_site['strip_html'] || true,
      yaml_site['notify'] || [],
      frefs,
      yaml_site['auth'] || {},
      cookie,
      yaml_site['check_interval'] || 5
    )
  end
  
  WCC.logger.debug @sites.length.to_s + (@sites.length == 1 ? ' site' : ' sites') + " loaded\n" +
    @sites.map { |s| "  #{s.uri.host.to_s}\n    url: #{s.uri.to_s}\n    id: #{s.id}" }.join("\n")
  
  @sites
end

Instance Method Details

#[](key) ⇒ Object

use Conf like a hash containing all options



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# File 'lib/wcc.rb', line 89

def [](key)
  @options[key.to_sym] || Conf.default[key.to_sym]
end

#[]=(key, val) ⇒ Object 



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# File 'lib/wcc.rb', line 92

def []=(key, val)
  @options[key.to_sym] = val unless val.nil?
end