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module RailsGuides
class Generator
attr_reader :output, :view_path, :view, :guides_dir
def initialize(output = nil)
@guides_dir = File.join(File.dirname(__FILE__), '..')
@output = output || File.join(@guides_dir, "output")
unless ENV["ONLY"]
FileUtils.rm_r(@output) if File.directory?(@output)
FileUtils.mkdir(@output)
end
@view_path = File.join(@guides_dir, "source")
end
def generate
guides = Dir.entries(view_path).find_all {|g| g =~ /textile$/ }
if ENV["ONLY"]
only = ENV["ONLY"].split(",").map{|x| x.strip }.map {|o| "#{o}.textile" }
guides = guides.find_all {|g| only.include?(g) }
puts "GENERATING ONLY #{guides.inspect}"
end
guides.each do |guide|
guide =~ /(.*?)(\.erb)?\.textile/
name = $1
puts "Generating #{name}"
file = File.join(output, "#{name}.html")
File.open(file, 'w') do |f|
@view = ActionView::Base.new(view_path)
@view.extend(Helpers)
if guide =~ /\.erb\.textile/
# Generate the erb pages with textile formatting - e.g. index/authors
result = view.render(:layout => 'layout', :file => name)
f.write textile(result)
else
body = File.read(File.join(view_path, guide))
body = set_header_section(body, @view)
body = set_index(body, @view)
result = view.render(:layout => 'layout', :text => textile(body))
f.write result
end
end
end
# Copy images and css files to html directory
FileUtils.cp_r File.join(guides_dir, 'images'), File.join(output, 'images')
FileUtils.cp_r File.join(guides_dir, 'files'), File.join(output, 'files')
end
def set_header_section(body, view)
new_body = body.gsub(/(.*?)endprologue\./m, '').strip
header = $1
header =~ /h2\.(.*)/
page_title = $1.strip
header = textile(header)
view.content_for(:page_title) { page_title }
view.content_for(:header_section) { header }
new_body
end
def set_index(body, view)
index = <<-INDEX
<div id="subCol">
<h3 class="chapter"><img src="images/chapters_icon.gif" alt="" /> Chapters</h3>
<ol class="chapters">
INDEX
i = Indexer.new(body)
i.index
# Set index for 2 levels
i.level_hash.each do |key, value|
bookmark = '#' + key.gsub(/[^a-z0-9\-_\+]+/i, '').underscore.dasherize
link = view.content_tag(:a, :href => bookmark) { textile(key) }
children = value.keys.map do |k|
bm = '#' + k.gsub(/[^a-z0-9\-_\+]+/i, '').underscore.dasherize
l = view.content_tag(:a, :href => bm) { textile(k) }
view.content_tag(:li, l)
end
children_ul = view.content_tag(:ul, children)
index << view.content_tag(:li, link + children_ul)
end
index << '</ol>'
index << '</div>'
view.content_for(:index_section) { index }
i.result
end
def textile(body)
t = RedCloth.new(body)
t.hard_breaks = false
t.to_html(:notestuff, :plusplus, :code, :tip)
end
end
end
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