Gem converter

README.md

@@ -22,3 +22,4 @@
 1. Блоки, лямбды, проки.
 1. Гемы.
 1. Метапрограммирование.
+

converter/Gemfile

@@ -0,0 +1,6 @@
+source "https://rubygems.org"
+
+git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+
+# Specify your gem's dependencies in converter.gemspec
+gemspec

converter/Gemfile.lock

@@ -0,0 +1,20 @@
+PATH
+  remote: .
+  specs:
+    converter (0.1.0)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    rake (10.5.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  bundler (~> 1.17)
+  converter!
+  rake (~> 10.0)
+
+BUNDLED WITH
+   1.17.3

converter/LICENSE.txt

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2020 TODO: Write your name
+
+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.

converter/README.md

@@ -0,0 +1,39 @@
+# Converter
+
+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/converter`. 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 'converter'
+```
+
+And then execute:
+
+    $ bundle
+
+Or install it yourself as:
+
+    $ gem install converter
+
+## Usage
+
+TODO: Write usage instructions here
+
+## Development
+
+After checking out the repo, run `bin/setup` to install dependencies. 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]/converter.
+
+## License
+
+The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).

converter/Rakefile

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+require "bundler/gem_tasks"
+task :default => :spec

converter/bin/console

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+#!/usr/bin/env ruby
+
+require "bundler/setup"
+require "converter"
+
+# 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(__FILE__)

converter/bin/setup

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

converter/converter.gemspec

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+
+lib = File.expand_path("../lib", __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require "converter/version"
+
+Gem::Specification.new do |spec|
+  spec.name          = "converter"
+  spec.version       = Converter::VERSION
+  spec.authors       = ["@egorles"]
+
+  spec.summary       = %q{Converter from RSS/ATOM/JSON to RSS/ATOM/JSON}
+  spec.homepage      = "https://github.com/egorles"
+  spec.license       = "MIT"
+
+  # Prevent pushing this gem to RubyGems.org. To allow pushes either set the 'allowed_push_host'
+  # to allow pushing to a single host or delete this section to allow pushing to any host.
+  if spec.respond_to?(:metadata)
+    spec.metadata["allowed_push_host"] = "TODO: Set to 'http://mygemserver.com'"
+
+    spec.metadata["homepage_uri"] = spec.homepage
+
+  else
+    raise "RubyGems 2.0 or newer is required to protect against " \
+      "public gem pushes."
+  end
+
+  # Specify which files should be added to the gem when it is released.
+  # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
+  spec.files         = Dir.chdir(File.expand_path('..', __FILE__)) do
+    `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
+  end
+  spec.bindir        = "exe"
+  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
+  spec.require_paths = ["lib"]
+
+  spec.add_development_dependency "bundler", "~> 1.17"
+  spec.add_development_dependency "rake", "~> 10.0"
+end

converter/exe/converter

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+#!/usr/bin/env ruby
+
+require "bundler/setup"
+require "converter"
+require "optparse"
+
+options = {}
+
+gem_spec = Gem::Specification::load("converter.gemspec")
+
+parser = OptionParser.new do |opt|
+  opt.banner = "Usage #{gem_spec.name} [options]"
+  opt.define_head gem_spec.summary
+
+  opt.separator ""
+
+  opt.on("-i", "--input [url]", String) do |input|
+  	options[:input] = input
+  end
+  opt.on("-o", "--output-format [rss | json | atom]", String) do |output|
+  	options[:output] = output
+  end
+  opt.on("-s", "--sort [asc | desc]", String) do |sort|
+  	options[:sort] = sort
+  end
+  opt.on("-f", "--file-name [string]", String) do |file|
+  	options[:file] = file
+  end
+
+  opt.separator ""
+
+  opt.on("-h", "--help", "Show this message") do |help|
+    puts opt
+    exit
+  end
+end
+
+begin
+  parser.parse! 
+  puts "The result is %s" % Converter.convert(options)
+
+rescue OptionParser::InvalidArgument => e 
+  STDERR.puts %Q[#{e.message.capitalize}. Run "#{File.basename($0)}" --help for details.]
+  exit 1
+rescue KeyError
+  STDERR.puts %Q[Insufficient arguments. Run "#{File.basename($0)}" --help for details.]
+  exit 2
+end
+

converter/lib/converter.rb

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+require "converter/version"
+require 'rss'
+require 'json'
+
+
+
+module Converter
+  class Error < StandardError; end
+  # Your code goes here...
+
+  def self.convert (options = {})
+    input = options.fetch(:input) 
+    output = options.fetch(:output)
+    sort = options.fetch(:sort)
+    file = options.fetch.(:file)
+
+  	if (input.include? 'rss') 
+  	  rss_read (input)
+  	elsif (input.include? 'json')
+  	  json_read (input)
+  	elsif (input.include? 'atom')
+  	  atom_read (input)	
+  	end
+
+  end
+
+  def self.rss_read (input)
+    url = "#{input}"
+    open(url) do |rss|
+      feed = RSS::Parser.parse(rss)
+      puts feed
+    end
+  end 
+
+  def self.json_read (input)
+    file = File.read(input)
+  end  	
+end

converter/lib/converter/version.rb

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+module Converter
+  VERSION = "0.1.0"
+end