Simple native rails generate, without Rails and Rails generators

generate.rb

#!/usr/bin/ruby

require 'colorize'

@locations = []

def generate_file( file_name, data )
  if File.exist?(file_name)
    info = 'exists'.red 
  else
    @locations.push file_name
    info = 'create'.green
    File.open(file_name, 'w') { |file| file.write(data) }
  end

  print info.rjust(25)

  print ": #{file_name}\n"
end

file_name  = ARGV[0]

unless file_name
  print "Usage: generate user_link\n"
  exit
end

class_name = ARGV[0].gsub(/_(\w)/){ "#{$1.capitalize}" }
class_name[0,1] = class_name[0,1].capitalize

if ARGV[1]
  file_names = ARGV[1]
  class_names = ARGV[1].gsub(/_(\w)/){ "#{$1.capitalize}" }
  class_names[0,1] = class_name[0,1].capitalize
else
  file_names  = file_name+'s'
  class_names = class_name+'s'
end

print "sin: #{file_name}\nplu: #{file_names}\nok (y)es and (m)igration, 'ym' for all: "

res = STDIN.gets.chomp
generate_migration = res =~ /m/

unless res =~ /^y/i
  print "(y)es not detected, exiting.\n"  
  exit
end

if file_names =~ /ss/ && ! ['news'].index(file_name)
  p "Koristi singular!"
  exit
end

file_data = {}

Dir.mkdir("app/views/admin") rescue 0
Dir.mkdir("app/views/admin/#{file_names}") rescue 0

generate_file "app/models/#{file_name}.rb", %[class #{class_name} < MasterModel
  #validates :name, presence:{ message:'Name is required' }
end]

generate_file "app/controllers/#{file_names}_controller.rb", %[class #{class_names}Controller < ApplicationController

  def show
    @#{file_name} = #{class_name}.find params[:id].to_i
  end

  def index
    @#{file_names} = #{class_name}.all.page params[:page]
  end

end]

generate_file "app/api/#{file_name}_api.rb", %[class #{class_name}Api < MasterApi

end]

if generate_migration
  generate_file "db/migrate/#{Time.now.strftime("%Y%m%d%H%M%S")}_create_#{file_name}.rb", %[class Create#{class_name} < ActiveRecord::Migration
    def change
      create_table :#{file_names} do |t|
        t.string   :name
        t.integer  :created_by
        t.integer  :updated_by
        t.datetime :created_at
        t.datetime :updated_at
      end
    end
  end]
else
  print "Skipping migration generation (no 'g' provided)\n"
end

generate_file "app/views/admin/#{file_names}/_wrap.haml", %[- @base_path = @#{file_name}.path(:admin)

= link_to 'Show', "/r/#]+%[{@#{file_name}.id}", :style=>'float:right;', :class=>'no-pjax'

%h1= @#{file_name}.name

%br
= bs_tabs [[@base_path,'#{class_name}']]
%br

= yield
]

generate_file "app/views/admin/#{file_names}/show.haml", %[= render :layout=>'/admin/#{file_names}/wrap' do

  .form
    = bs_form @#{file_name}, :horizontal=>true, :done=>'refresh' do
      = bs_input :name
      = bs_submit 'Save', '/admin/#{file_names}', 'go back to list'
    ]

generate_file "app/views/admin/#{file_names}/index.haml", %[%h1
  #{class_name}
  %button.btn{ :onclick=>%[$(this).hide().parent().next().show();] } +

.alert.alert-info.none
  = bs_form #{class_name}.new, :horizontal=>true, :done=>'refresh' do
    = bs_input :name
    = bs_submit 'Create new #{class_name}', %[$(this).closest('.alert').hide().prev().find('button').show();]

%table.table.table-striped.hover
  %tr
    %th{ :style=>'width:40px;' } ID
    %th Name
    %th{ :style=>'width:120px;' } Created at

  - for el in (@rows = #{class_name}.desc.page(params[:page]))
    %tr{ :href=>el.path(:admin) }
      %td= el.id
      %td
        = el.name
      %td= el.created_at.short

  = will_paginate @rows
]

system @locations.map{ |el| "subl #{el}" }.join(' && ')