Initial commit

Author: dimianstudio

.gitignore

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+/.bundle/
+/.yardoc
+/Gemfile.lock
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/spec/reports/
+/tmp/

Gemfile

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+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in config_generator.gemspec
+gemspec

LICENSE.txt

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+The MIT License (MIT)
+
+Copyright (c) 2015 Dmytro Myrhorodskyi
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

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+# ConfigGenerator
+
+Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file `lib/config_generator`. To experiment with that code, run `bin/console` for an interactive prompt.
+
+TODO: Delete this and the text above, and describe your gem
+
+## Installation
+
+Add this line to your application's Gemfile:
+
+```ruby
+gem 'config_generator'
+```
+
+And then execute:
+
+    $ bundle
+
+Or install it yourself as:
+
+    $ gem install config_generator
+
+## Usage
+
+TODO: Write usage instructions here
+
+## Development
+
+After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake false` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
+
+To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
+
+## Contributing
+
+Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/config_generator. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](contributor-covenant.org) code of conduct.
+
+
+## License
+
+The gem is available as open source under the terms of the [MIT License](http://opensource.org/licenses/MIT).
+

Rakefile

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+require "bundler/gem_tasks"

bin/console

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+#!/usr/bin/env ruby
+
+require "bundler/setup"
+require "config_generator"
+
+# You can add fixtures and/or initialization code here to make experimenting
+# with your gem easier. You can also use a different console, if you like.
+
+# (If you use this, don't forget to add pry to your Gemfile!)
+# require "pry"
+# Pry.start
+
+require "irb"
+IRB.start

bin/setup

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+#!/bin/bash
+set -euo pipefail
+IFS=$'\n\t'
+
+bundle install
+
+# Do any other automated setup that you need to do here

config_generator.gemspec

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+# coding: utf-8
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'config_generator/version'
+
+Gem::Specification.new do |spec|
+  spec.name          = "config_generator"
+  spec.version       = ConfigGenerator::VERSION
+  spec.authors       = ["Dmytro Myrhorodskyi"]
+  spec.email         = ["dimianstudio@gmail.com"]
+
+  spec.summary       = %q{Simple generator for config files}
+  spec.license       = "MIT"
+
+  # Prevent pushing this gem to RubyGems.org by setting 'allowed_push_host', or
+  # delete this section to allow pushing this gem to any host.
+  if spec.respond_to?(:metadata)
+    spec.metadata['allowed_push_host'] = "TODO: Set to 'http://mygemserver.com'"
+  else
+    raise "RubyGems 2.0 or newer is required to protect against public gem pushes."
+  end
+
+  spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
+  spec.bindir        = "exe"
+  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
+  spec.require_paths = ["lib"]
+
+  spec.add_development_dependency "bundler", "~> 1.10"
+  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "activesupport"
+end

lib/config_generator.rb

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+require 'config_generator/version'
+require 'yaml'
+require 'active_support/core_ext/object/blank'
+
+class Hash
+  def flatten_each(prefix = [], &blk)
+    each do |k, v|
+      if v.is_a?(Hash)
+        v.flatten_each(prefix + [k], &blk)
+      else
+        yield prefix + [k], v
+      end
+    end
+  end
+
+  def deep_flatten(join_symbol = '/')
+    {}.tap do |result|
+      flatten_each do |k, v|
+        result[k.join(join_symbol)] = v
+      end
+    end
+  end
+end
+
+module ConfigGenerator
+  class Base
+    def initialize(project_path)
+      @project_path = project_path
+      @app_config = YAML.load(File.read("#{@project_path}/app_config.yml"))
+      @errors = {}
+    end
+
+    def environments
+      @environments ||= @app_config['environments'] || []
+    end
+
+    def generate_file
+      if valid?
+        File.open(config_path, 'w+') { |f| f.write(file_contents) }
+      else
+        @errors.each do |key, value|
+          puts "#{config_file} - #{error_messages[key].call(value)}"
+        end
+      end
+    end
+
+    protected
+
+    def config_file
+      raise NotImplementedError, 'config_file is not implemented'
+    end
+
+    def config_path
+      @project_path + '/config/' + config_file
+    end
+
+    def config_section
+      @config_section ||= @app_config[config_file]
+    end
+
+    def required_keys
+      []
+    end
+
+    def default_options
+      {}
+    end
+
+    def error_messages
+      {
+        missing_environments: ->(value) { "Provide at least one environment." },
+        missing_keys: ->(value) { "Fill missing values #{value.map { |k| "'#{k}'" }.join(', ')}." }
+      }
+    end
+
+    def validate_config!
+      @errors[:missing_environments] = true unless environments.present?
+
+      missing_keys = required_keys - (config_section.keys + config_section.deep_flatten('.').keys)
+      @errors[:missing_keys] = missing_keys if missing_keys.present?
+    end
+
+    def valid?
+      validate_config!
+      @errors.empty?
+    end
+
+    def file_contents
+      raise NotImplementedError, 'file_contents is not implemented'
+    end
+  end
+end

lib/config_generator/version.rb

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+module ConfigGenerator
+  VERSION = "0.1.0"
+end