blob: 8bae08e44e661054a30ca0ca7036bc9e743bd19f (
plain) (
blame)
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
|
module Rails
# This is a class which takes in a rails command and initiates the appropriate
# initiation sequence.
#
# Warning: This class mutates ARGV because some commands require manipulating
# it before they are run.
class CommandsTasks # :nodoc:
attr_reader :argv
HELP_MESSAGE = <<-EOT
Usage: rails COMMAND [ARGS]
The most common rails commands are:
generate Generate new code (short-cut alias: "g")
console Start the Rails console (short-cut alias: "c")
server Start the Rails server (short-cut alias: "s")
dbconsole Start a console for the database specified in config/database.yml
(short-cut alias: "db")
new Create a new Rails application. "rails new my_app" creates a
new application called MyApp in "./my_app"
In addition to those, there are:
destroy Undo code generated with "generate" (short-cut alias: "d")
plugin new Generates skeleton for developing a Rails plugin
runner Run a piece of code in the application environment (short-cut alias: "r")
All commands can be run with -h (or --help) for more information.
EOT
COMMAND_WHITELIST = %w(plugin generate destroy console server dbconsole runner new version help)
def initialize(argv)
@argv = argv
end
def run_command!(command)
command = parse_command(command)
if COMMAND_WHITELIST.include?(command)
send(command)
else
write_error_message(command)
end
end
def plugin
require_command!("plugin")
end
def generate
generate_or_destroy(:generate)
end
def destroy
generate_or_destroy(:destroy)
end
def console
require_command!("console")
options = Rails::Console.parse_arguments(argv)
# RAILS_ENV needs to be set before config/application is required
ENV['RAILS_ENV'] = options[:environment] if options[:environment]
# shift ARGV so IRB doesn't freak
shift_argv!
require_application_and_environment!
Rails::Console.start(Rails.application, options)
end
def server
set_application_directory!
require_command!("server")
Rails::Server.new.tap do |server|
# We need to require application after the server sets environment,
# otherwise the --environment option given to the server won't propagate.
require APP_PATH
Dir.chdir(Rails.application.root)
server.start
end
end
def dbconsole
require_command!("dbconsole")
Rails::DBConsole.start
end
def runner
require_command!("runner")
end
def new
if %w(-h --help).include?(argv.first)
require_command!("application")
else
exit_with_initialization_warning!
end
end
def version
argv.unshift '--version'
require_command!("application")
end
def help
write_help_message
end
private
def exit_with_initialization_warning!
puts "Can't initialize a new Rails application within the directory of another, please change to a non-Rails directory first.\n"
puts "Type 'rails' for help."
exit(1)
end
def shift_argv!
argv.shift if argv.first && argv.first[0] != '-'
end
def require_command!(command)
require "rails/commands/#{command}"
end
def generate_or_destroy(command)
require 'rails/generators'
require_application_and_environment!
Rails.application.load_generators
require_command!(command)
end
# Change to the application's path if there is no config.ru file in current directory.
# This allows us to run `rails server` from other directories, but still get
# the main config.ru and properly set the tmp directory.
def set_application_directory!
Dir.chdir(File.expand_path('../../', APP_PATH)) unless File.exist?(File.expand_path("config.ru"))
end
def require_application_and_environment!
require APP_PATH
Rails.application.require_environment!
end
def write_help_message
puts HELP_MESSAGE
end
def write_error_message(command)
puts "Error: Command '#{command}' not recognized"
if %x{rake #{command} --dry-run 2>&1 } && $?.success?
puts "Did you mean: `$ rake #{command}` ?\n\n"
end
write_help_message
exit(1)
end
def parse_command(command)
case command
when '--version', '-v'
'version'
when '--help', '-h'
'help'
else
command
end
end
end
end
|
