Merge pull request #10 from daigaku-ruby/feature/update-dependencies

* Update parser gem to ~> 2.7 and dev dependencies
* Drop support for Ruby <= v2.4

Author: paulgoetze

.travis.yml

@@ -3,11 +3,7 @@ language: ruby
 before_install: gem install bundler
 
 rvm:
-  - 2.2.0
-  - 2.2.7
-  - 2.3.0
-  - 2.3.4
-  - 2.4.0
-  - 2.4.1
-  - 2.5.0
   - ruby-head
+  - 2.7
+  - 2.6
+  - 2.5

code_breaker.gemspec

@@ -26,10 +26,11 @@ Gem::Specification.new do |spec|
   spec.bindir        = 'exe'
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
+  spec.required_ruby_version = '~> 2.5'
 
-  spec.add_dependency 'parser', '~> 2.5'
+  spec.add_dependency 'parser', '~> 2.7'
 
-  spec.add_development_dependency 'bundler', '~> 1.17'
-  spec.add_development_dependency 'rake',    '~> 12.0'
-  spec.add_development_dependency 'rspec',   '~> 3.6'
+  spec.add_development_dependency 'bundler', '~> 2.0'
+  spec.add_development_dependency 'rake',    '~> 13.0'
+  spec.add_development_dependency 'rspec',   '~> 3.9'
 end

lib/code_breaker/version.rb

@@ -1,3 +1,3 @@
 module CodeBreaker
-  VERSION = '0.3.1'.freeze
+  VERSION = '1.0.0'.freeze
 end