aboutsummaryrefslogtreecommitdiffstats
path: root/guides/rails_guides.rb
blob: 1bdeef2947c344510b7f0e6ad5c9886a4d257a7c (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
pwd = File.dirname(__FILE__)
$:.unshift pwd

# This is a predicate useful for the doc:guides task of applications.
def bundler?
  # Note that rake sets the cwd to the one that contains the Rakefile
  # being executed.
  File.exist?('Gemfile')
end

begin
  # Guides generation in the Rails repo.
  as_lib = File.join(pwd, "../activesupport/lib")
  ap_lib = File.join(pwd, "../actionpack/lib")

  $:.unshift as_lib if File.directory?(as_lib)
  $:.unshift ap_lib if File.directory?(ap_lib)
rescue LoadError
  # Guides generation from gems.
  gem "actionpack", '>= 3.0'
end

begin
  require 'redcarpet'
rescue LoadError
  # This can happen if doc:guides is executed in an application.
  $stderr.puts('Generating guides requires Redcarpet 3.1.0+.')
  $stderr.puts(<<ERROR) if bundler?
Please add

  gem 'redcarpet', '~> 3.1.0'

to the Gemfile, run

  bundle install

and try again.
ERROR
  exit 1
end

begin
  require 'nokogiri'
rescue LoadError
  # This can happen if doc:guides is executed in an application.
  $stderr.puts('Generating guides requires Nokogiri.')
  $stderr.puts(<<ERROR) if bundler?
Please add

  gem 'nokogiri'

to the Gemfile, run

  bundle install

and try again.
ERROR
  exit 1
end

require 'rails_guides/markdown'
require "rails_guides/generator"
RailsGuides::Generator.new.generate