1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
| | require 'optparse'
module Rack
class Server
class Options
def parse!(args)
options = {}
opt_parser = OptionParser.new("", 24, ' ') do |opts|
opts.banner = "Usage: rackup [ruby options] [rack options] [rackup config]"
opts.separator ""
opts.separator "Ruby options:"
lineno = 1
opts.on("-e", "--eval LINE", "evaluate a LINE of code") { |line|
eval line, TOPLEVEL_BINDING, "-e", lineno
lineno += 1
}
opts.on("-d", "--debug", "set debugging flags (set $DEBUG to true)") {
options[:debug] = true
}
opts.on("-w", "--warn", "turn warnings on for your script") {
options[:warn] = true
}
opts.on("-I", "--include PATH",
"specify $LOAD_PATH (may be used more than once)") { |path|
options[:include] = path.split(":")
}
opts.on("-r", "--require LIBRARY",
"require the library, before executing your script") { |library|
options[:require] = library
}
opts.separator ""
opts.separator "Rack options:"
opts.on("-s", "--server SERVER", "serve using SERVER (webrick/mongrel)") { |s|
options[:server] = s
}
opts.on("-o", "--host HOST", "listen on HOST (default: 0.0.0.0)") { |host|
options[:Host] = host
}
opts.on("-p", "--port PORT", "use PORT (default: 9292)") { |port|
options[:Port] = port
}
opts.on("-E", "--env ENVIRONMENT", "use ENVIRONMENT for defaults (default: development)") { |e|
options[:environment] = e
}
opts.on("-D", "--daemonize", "run daemonized in the background") { |d|
options[:daemonize] = d ? true : false
}
opts.on("-P", "--pid FILE", "file to store PID (default: rack.pid)") { |f|
options[:pid] = ::File.expand_path(f)
}
opts.separator ""
opts.separator "Common options:"
opts.on_tail("-h", "--help", "Show this message") do
puts opts
exit
end
opts.on_tail("--version", "Show version") do
puts "Rack #{Rack.version}"
exit
end
end
opt_parser.parse! args
options[:rack_file] = args.last if args.last
options
end
end
def self.start
new.start
end
attr_accessor :options
def initialize(options = nil)
@options = options
end
def options
@options ||= parse_options(ARGV)
end
def default_options
{
:environment => "development",
:pid => nil,
:Port => 9292,
:Host => "0.0.0.0",
:AccessLog => [],
:rack_file => ::File.expand_path("config.ru")
}
end
def app
@app ||= begin
if !::File.exist? options[:rack_file]
abort "configuration #{options[:rack_file]} not found"
end
app, options = Rack::Builder.parse_file(self.options[:rack_file], opt_parser)
self.options.merge! options
app
end
end
def self.middleware
@middleware ||= begin
m = Hash.new {|h,k| h[k] = []}
m["deployment"].concat [lambda {|server| server.server =~ /CGI/ ? nil : [Rack::CommonLogger, $stderr] }]
m["development"].concat m["deployment"] + [[Rack::ShowExceptions], [Rack::Lint]]
m
end
end
def middleware
self.class.middleware
end
def start
if options[:debug]
$DEBUG = true
require 'pp'
p options[:server]
pp wrapped_app
pp app
end
if options[:warn]
$-w = true
end
if includes = options[:include]
$LOAD_PATH.unshift *includes
end
if library = options[:require]
require library
end
daemonize_app if options[:daemonize]
write_pid if options[:pid]
server.run wrapped_app, options
end
def server
@_server ||= Rack::Handler.get(options[:server]) || Rack::Handler.default
end
private
def parse_options(args)
options = default_options
# Don't evaluate CGI ISINDEX parameters.
# http://hoohoo.ncsa.uiuc.edu/cgi/cl.html
args.clear if ENV.include?("REQUEST_METHOD")
options.merge! opt_parser.parse! args
options
end
def opt_parser
Options.new
end
def build_app(app)
middleware[options[:environment]].reverse_each do |middleware|
middleware = middleware.call(self) if middleware.respond_to?(:call)
next unless middleware
klass = middleware.shift
app = klass.new(app, *middleware)
end
app
end
def wrapped_app
@wrapped_app ||= build_app app
end
def daemonize_app
if RUBY_VERSION < "1.9"
exit if fork
Process.setsid
exit if fork
Dir.chdir "/"
::File.umask 0000
STDIN.reopen "/dev/null"
STDOUT.reopen "/dev/null", "a"
STDERR.reopen "/dev/null", "a"
else
Process.daemon
end
end
def write_pid
::File.open(options[:pid], 'w'){ |f| f.write("#{Process.pid}") }
at_exit { ::File.delete(options[:pid]) if ::File.exist?(options[:pid]) }
end
end
end
|