Class: Cosmo::CLI

Inherits:
Object
  • Object
show all
Defined in:
lib/cosmo/cli.rb,
sig/cosmo/cli.rbs

Overview

rubocop:disable Metrics/AbcSize, Metrics/MethodLength, Metrics/CyclomaticComplexity, Metrics/PerceivedComplexity, Metrics/BlockLength

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

rubocop:disable Layout/TrailingWhitespace,Lint/IneffectiveAccessModifier

Returns:

  • (::String) 


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# File 'lib/cosmo/cli.rb', line 218

def self.banner
  <<-TEXT
                .#%+:                                                  
                 ==-.                                       +.         
                   +:  .::::.                              :*-         
                 .=%%%%%%%%%%%%%#-                                     
              .#%%%%%%%%##*+===+*#%%:                                  
            :##%%%%#:  :-::...::::. -%.                                
           +%%%**  :.             :+. -=.%:                         -  
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             =***%*.            .:#*:  .%%*+%%%#.+%+. .          =     
       -%#-:        -*########+   .:   +%%%=%%%*++:                    
    .##:---.  :%%-  *: +%%%%%%%%%%%##. -#%%*= =-                       
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        +***+:=***::  ==:.      ....::..                               
     -%%%%%+%%-         ....               .     +##%%=  .#%%%%%%%#.   
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  .#%#########:  :==-:          ..:--=====---::::..                    
   .########+.         .:--=--::.                                      
      :--.       .---:.                                                
             :.                                                        
  TEXT
end

.instance ⇒ CLI

Returns:



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# File 'lib/cosmo/cli.rb', line 13

def self.instance
  @instance ||= new
end

.run ⇒ void

This method returns an undefined value.



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# File 'lib/cosmo/cli.rb', line 9

def self.run
  instance.run
end

Instance Method Details

#boot_application ⇒ void

This method returns an undefined value.



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# File 'lib/cosmo/cli.rb', line 86

def boot_application
  boot_path = File.expand_path("config/boot.rb")
  require boot_path if File.exist?(boot_path)

  environment_path = File.expand_path("config/environment.rb")
  require environment_path if File.exist?(environment_path)

  # Ensure the ActiveJob integration is loaded when ActiveJob is present
  # but was not already pulled in by the app (e.g. non-Rails setup or the Railtie hasn't fired yet at this point).
  require "cosmo/active_job" if defined?(::ActiveJob) && !defined?(Cosmo::ActiveJobAdapter::Executor)
end

#flags_parser(flags) ⇒ Object

Parameters:

  • flags (Hash[Symbol, untyped])

Returns:

  • (Object) 


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# File 'lib/cosmo/cli.rb', line 109

def flags_parser(flags)
  OptionParser.new do |o|
    o.banner = "Usage: cosmo [flags] [command] [options]"
    o.separator ""
    o.separator "Command:"
    o.separator "  jobs      Run jobs"
    o.separator "  streams   Run streams"
    o.separator "  actions   Run actions"
    o.separator ""
    o.separator "Flags:"

    o.on "-c", "--concurrency INT", Integer, "Threads to use" do |arg|
      flags[:concurrency] = arg
    end

    o.on "-r", "--require PATH|DIR", "Location of files to require" do |arg|
      flags[:require] = arg
    end

    o.on "-t", "--timeout NUM", Integer, "Shutdown timeout" do |arg|
      flags[:timeout] = arg
    end

    o.on "-C", "--config PATH", "Path to config file" do |arg|
      flags[:config_file] = arg
    end

    o.on "-S", "--setup", "Create/update streams and sync cron schedules, then exit" do
      flags[:setup] = true
    end

    o.on_tail "-v", "--version", "Print version" do
      puts "Cosmo #{VERSION}"
      exit(0)
    end

    o.on_tail "-h", "--help", "Show help" do
      puts o
      exit(0)
    end
  end
end

#load_config(flags) ⇒ void

This method returns an undefined value.

Parameters:

  • flags (Hash[Symbol, untyped])

Raises:



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# File 'lib/cosmo/cli.rb', line 43

def load_config(flags)
  path = flags[:config_file]
  raise ConfigNotFoundError, path if path && !File.exist?(path)

  unless path
    # Try default path
    default_path = File.expand_path(Config::DEFAULT_PATH)
    path = default_path if File.exist?(default_path)
  end

  Config.load(path)
  Config.set(:concurrency, flags[:concurrency]) if flags[:concurrency]
  Config.set(:timeout, flags[:timeout]) if flags[:timeout]
end

#options_parser(command, options) ⇒ Object

rubocop:disable Metrics/MethodLength, Metrics/AbcSize

Parameters:

  • command (::String, nil)
  • options (Hash[Symbol, untyped])

Returns:

  • (Object) 


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# File 'lib/cosmo/cli.rb', line 152

def options_parser(command, options) # rubocop:disable Metrics/MethodLength, Metrics/AbcSize
  case command
  when "jobs"
    OptionParser.new do |o|
      o.banner = "Usage: cosmo jobs [options]"

      o.on "--stream NAME", "Job's stream" do |arg|
        options[:stream] = arg
      end

      o.on "--subject NAME", "Job's subject" do |arg|
        options[:subject] = arg
      end
    end
  when "streams"
    OptionParser.new do |o|
      o.banner = "Usage: cosmo streams [options]"
      o.separator ""
      o.separator "  [m] many processors can be specified, in that case single options [1] are ignored"
      o.separator "  [1] options work only for a single processor"
      o.separator ""

      o.on "--processors NAMES", "[m] Specify processors names with comma" do |arg|
        options[:processors] = arg.split(",")
      end

      o.on "--stream NAME", "[1] Specify stream name" do |arg|
        options[:stream] = arg
      end

      o.on "--subject NAME", "[1] Specify subject name" do |arg|
        options[:subject] = arg
      end

      o.on "--consumer_name NAME", "[1] Specify consumer name" do |arg|
        options[:consumer_name] = arg
      end

      o.on "--batch_size NUM", Integer, "[1] Number of messages in the batch" do |arg|
        options[:batch_size] = arg
      end
    end
  when "actions"
    OptionParser.new do |o|
      o.banner = "Usage: cosmo actions [options]"

      o.on "-n", "--nop", "Do nothing and exit" do
        exit(0)
      end
    end
  end
end

#parse ⇒ [Hash[Symbol, untyped], ::String?, Hash[Symbol, untyped]]

Returns:

  • ([Hash[Symbol, untyped], ::String?, Hash[Symbol, untyped]]) 


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# File 'lib/cosmo/cli.rb', line 30

def parse
  flags = {}
  parser = flags_parser(flags)
  parser.order!

  options = {}
  command = ARGV.shift
  parser = options_parser(command, options)
  parser&.order!

  [flags, command, options]
end

#require_files(path) ⇒ void

This method returns an undefined value.

Parameters:

  • path (::String) 


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# File 'lib/cosmo/cli.rb', line 205

def require_files(path)
  path = File.expand_path(path)

  if File.directory?(path)
    files = Dir["#{path}/**/*.rb"]
    files.each { |f| require f }
    return
  end

  require path
end

#require_path(path) ⇒ void

This method returns an undefined value.

Parameters:

  • path (::String, nil) 


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# File 'lib/cosmo/cli.rb', line 98

def require_path(path)
  if path
    require_files(path)
    return # If a path is provided don't load default dirs.
  end

  # Load files from app/streams if they exist.
  # Streams are always eagerly loaded since they register classes to process events.
  require_files("app/streams") if File.directory?("app/streams")
end

#run ⇒ void

This method returns an undefined value.



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# File 'lib/cosmo/cli.rb', line 17

def run
  flags, command, options = parse
  return run_setup(flags) if flags[:setup]

  load_config(flags)
  puts self.class.banner
  boot_application
  require_path(flags[:require])
  Engine.run(command, options)
end