Module: LWAC

Defined in:
lib/lwac.rb,
lib/lwac/client.rb,
lib/lwac/export.rb,
lib/lwac/import.rb,
lib/lwac/server.rb,
lib/lwac/export/format.rb,
lib/lwac/client/storage.rb,
lib/lwac/server/db_conn.rb,
lib/lwac/shared/multilog.rb,
lib/lwac/export/resources.rb,
lib/lwac/client/file_cache.rb,
lib/lwac/shared/data_types.rb,
lib/lwac/shared/serialiser.rb,
lib/lwac/shared/launch_tools.rb,
lib/lwac/server/storage_manager.rb,
lib/lwac/export/key_value_format.rb,
lib/lwac/server/consistency_manager.rb

Overview

LWAC namespace

Defined Under Namespace

Modules: Identity, KeyValueFormat, OutputFilter Classes: CSVFormatter, ConsistencyManager, DataPoint, DatabaseConnection, DatabaseStorageManager, DownloadClient, DownloadServer, DownloadService, Exporter, FileCache, Formatter, Importer, JSONFormatter, KeyValueFormatter, Link, MultiCSVFormatter, MultiOutputLogger, MultiTemplateFormatter, MultiXMLFormatter, MySQLDatabaseConnection, Resource, SQLite3DatabaseConnection, Sample, Serialiser, ServerState, StorageManager, Store

Constant Summary collapse

VERSION =

Overall LWAC version, as in the git tags

'0.2.0'
DATE =

Date of last significant edit

'20-07-13'
AUTHORS =

Authors

[
  {:name => "Stephen Wattam", :contact => "http://stephenwattam.com"},
 #{:name => "", :contact => ""}  # Add yourself here (and in the gemspec) if you contribute to LWAC
]
RESOURCE_DIR =

Location of resources

File.join( File.dirname( File.expand_path(__FILE__) ), '../resources/')

Class Method Summary collapse

Class Method Details

.load_config ⇒ Object

Load configs from ARGV and output usage info.



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# File 'lib/lwac/shared/launch_tools.rb', line 24

def self.load_config 

  # First, check arguments are fine.
  if ARGV.length < 2 or not File.readable?(ARGV[1]) then
    print_usage()
    exit(1)
  end

  # Check the tool is a valid one
  if not %w{server client import export}.include?(ARGV[0]) then
    $stderr.puts "Not a valid command: #{ARGV[0]}"
    print_usage()
    exit(1)
  end

  # Require things we need for the below
  require 'yaml'
  require 'logger'



  # Then check filesystem is in shape
  #require_relative ...


  # Then load the config
  tool   = ARGV[0].to_sym
  config = YAML.load_file(ARGV[1])



  # Then, create global log
  logdevs = []
  if config[:logging] and config[:logging][:logs].is_a?(Hash)
    config[:logging][:logs].each{|name, ldopts| 
      # Construct the log
      ld            = {:name => name}
      ld[:dev]      = %w{STDOUT STDERR}.include?(ldopts[:dev]) ? eval(ldopts[:dev]) : ldopts[:dev] || STDOUT
      ld[:level]    = ldopts[:level]

      # Add to the list of logs
      logdevs << ld
    }
  end
  $log = MultiOutputLogger.new(logdevs, config[:logging][:progname].to_s)

  # Apply nicer log output format
  $log.formatter = proc do |severity, datetime, progname, msg|
    "#{severity.to_s[0]} #{progname} [#{datetime.strftime('%y-%m-%d %H:%M:%S')}] #{msg}\n"
  end
  
  
  # Handle signals nicely.
  $log.debug "Installing signal handlers..."
  %w{INT HUP KILL ABRT}.each{|s|
    trap(s) { raise SignalException.new(s) }
  }


  # Return the config we've loaded.
  return tool, config
end

.print_usage ⇒ Object 



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# File 'lib/lwac/shared/launch_tools.rb', line 12

def self.print_usage
  $stderr.puts "USAGE: #{$PROGRAM_NAME} TOOL CONFIG [IMPORT_FILE]"
  $stderr.puts ""
  $stderr.puts " TOOL        : one of 'server', 'client', 'import' or 'export'"
  $stderr.puts " CONFIG      : A path to the config file for the tool"
  $stderr.puts " IMPORT_FILE : A URL list to import"
  $stderr.puts ""
end