Class: Falcon::Command::Serve

Inherits:
Samovar::Command
  • Object
show all
Defined in:
lib/falcon/command/serve.rb

Instance Method Summary collapse

Instance Method Details

#call ⇒ Object 



149
150
151
152
153
 
# File 'lib/falcon/command/serve.rb', line 149

def call
  container = run(parent.verbose?)
  
  container.wait
end

#client ⇒ Object 



101
102
103
 
# File 'lib/falcon/command/serve.rb', line 101

def client
  Async::HTTP::Client.new(client_endpoint)
end

#client_endpoint ⇒ Object 



97
98
99
 
# File 'lib/falcon/command/serve.rb', line 97

def client_endpoint
  Async::HTTP::URLEndpoint.parse(@options[:bind], **endpoint_options)
end

#container_class ⇒ Object 



59
60
61
62
63
64
65
66
67
68
 
# File 'lib/falcon/command/serve.rb', line 59

def container_class
  case @options[:container]
  when :threaded
    return Async::Container::Threaded
  when :forked
    return Async::Container::Forked
  when :hybrid
    return Async::Container::Hybrid
  end
end

#container_options ⇒ Object 



89
90
91
 
# File 'lib/falcon/command/serve.rb', line 89

def container_options
  slice_options(:count, :forks, :threads)
end

#endpoint_options ⇒ Object 



93
94
95
 
# File 'lib/falcon/command/serve.rb', line 93

def endpoint_options
  slice_options(:hostname, :port, :reuse_port, :timeout)
end

#load_app(verbose) ⇒ Object 



70
71
72
73
74
 
# File 'lib/falcon/command/serve.rb', line 70

def load_app(verbose)
  rack_app, options = Rack::Builder.parse_file(@options[:config])
  
  return Server.middleware(rack_app, verbose: verbose), options
end

#run(verbose = false) ⇒ Object 



105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
 
# File 'lib/falcon/command/serve.rb', line 105

def run(verbose = false)
  app, _ = load_app(verbose)
  
  endpoint = Endpoint.parse(@options[:bind], **endpoint_options)
  
  bound_endpoint = Async::Reactor.run do
    Async::IO::SharedEndpoint.bound(endpoint)
  end.wait
  
  Async.logger.info(endpoint) do |buffer|
    buffer.puts "Falcon taking flight! Using #{container_class} #{container_options}"
    buffer.puts "- To terminate: Ctrl-C or kill #{Process.pid}"
  end
  
  debug_trap = Async::IO::Trap.new(:USR1)
  debug_trap.ignore!
  
  container = container_class.new
  
  container.run(name: "Falcon Server", restart: true, **container_options) do |task, instance|
    task.async do
      if debug_trap.install!
        Async.logger.info(instance) do
          "- Per-process status: kill -USR1 #{Process.pid}"
        end
      end
      
      debug_trap.trap do
        Async.logger.info(self) do |buffer|
          task.reactor.print_hierarchy(buffer)
        end
      end
    end
    
    server = Falcon::Server.new(app, bound_endpoint, endpoint.protocol, endpoint.scheme)
    
    server.run
    
    task.children.each(&:wait)
  end
  
  return container
end

#slice_options(*keys) ⇒ Object 



76
77
78
79
80
81
82
83
84
85
86
87
 
# File 'lib/falcon/command/serve.rb', line 76

def slice_options(*keys)
  # TODO: Ruby 2.5 introduced Hash#slice
  options = {}
  
  keys.each do |key|
    if @options.key?(key)
      options[key] = @options[key]
    end
  end
  
  return options
end