Generator script.

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Ed Howland

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Jan 21, 2010, 12:15:54 PM1/21/10

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A gereator script is needed to make things easier for the spec_wire
user. Similar to the generator scripts used in Rails, etc. And _very_
similar to the generator used in RSpec for Rails.

Bssically, it copies a template folder structure with files and
sub-folders into a source, but not overwriting files (unless asked to)

It should also take some options and convert them to variables ro be
used in ERB templates. ERB templates are any files with a
.erb extension. They are processed through ERB and then written out to
the same filename sans .erb.

Usag:

spec_wire .

spec_wire --php --server-url=http://... --server-dir=~/Sites/myweb

Etc.

Here is a starting point for this with some peudo code.

#!/usr/bin/env ruby
# generator.rb handles copying a dir structure from a template
# to a destination folder, checking for existing dirs and files
# along the way. Command line options are turned into variables.
# Any files with the .erb suffix are run through ERb first allowing
# for the substitution of variables or looping or coditionals first.

require 'getoptlong'
require 'fileutils'
require 'erb'

# handles long option names
opts = GetoptLong.new(
['--server-url', '-u', GetoptLong::REQUIRED_ARGUMENT],
['--server-dir', '-d', GetoptLong::REQUIRED_ARGUMENT],
['--php', GetoptLong::NO_ARGUMENT],
['--force', GetoptLong::NO_ARGUMENT] # forces overwriting of files
)

# loops through these setting variables, flags, etc
opts.each do |opt, arg|
# something
end

# looks at template folder
# uses mkdir_p ?, File.exists? etc.
# if file extension ends with '.erb' then:

# read file into str
str = ''
template = ERB.new str
# open output file for writing
# f.write template.result(binding)