Revert introduction of ActiveSupport dependency (#649)

Signed-off-by: James Couball <jcouball@yahoo.com>

Author: jcouball

README.md

@@ -3,73 +3,47 @@
 # @title README
 -->
 
-# The `git` Gem
+# The Git Gem
 
-[![Gem Version](https://badge.fury.io/rb/git.svg)](https://badge.fury.io/rb/git)
-[![Change Log](https://img.shields.io/badge/change%20log-Latest-green)](https://rubydoc.info/gems/git/file/CHANGELOG.md)
-[![Build Status](https://github.com/ruby-git/ruby-git/actions/workflows/continuous_integration.yml/badge.svg)](https://github.com/ruby-git/ruby-git/actions/workflows/continuous_integration.yml)
-[![Code Climate](https://codeclimate.com/github/ruby-git/ruby-git.png)](https://codeclimate.com/github/ruby-git/ruby-git)
-[![Source Code](https://img.shields.io/badge/source-GitHub-green)](https://github.com/ruby-git/ruby-git)
-[![Documentation](https://img.shields.io/badge/documentation-Latest-green)](https://rubydoc.info/gems/git)
-[![License: MIT](https://img.shields.io/badge/license-MIT-green.svg)](https://github.com/ruby-git/ruby-git/blob/master/LICENSE)
-
-The git Gem provides an API that can be used to create, read, and manipulate
+The Git Gem provides an API that can be used to create, read, and manipulate
 Git repositories by wrapping system calls to the `git` binary. The API can be
 used for working with Git in complex interactions including branching and
 merging, object inspection and manipulation, history, patch generation and
 more.
 
-## Basic Usage
+## Homepage
 
-Get started by obtaining a repository object by:
+The project source code is at:
 
-* Opening an existing working copy with [Git.open](https://rubydoc.info/gems/git/Git#open-class_method)
-* Initializing a new repository with [Git.init](https://rubydoc.info/gems/git/Git#init-class_method)
-* Cloning a repository with [Git.clone](https://rubydoc.info/gems/git/Git#clone-class_method)
+http://github.com/ruby-git/ruby-git
 
-Methods that can be called on a repository object are documented in [Git::Base](https://rubydoc.info/gems/git/Git/Base)
+## Documentation
 
-## Install
+Detailed documentation can be found at:
 
-You can install the `git` gem with the following command:
+https://rubydoc.info/gems/git/Git.html
 
-```shell
-gem install git
-```
-
-## Deprecation Warnings
+Get started by obtaining a repository object by:
 
-Deprecation warnings are managed with the `Git.deprecation` attribute.
+* opening an existing working copy with [Git.open](https://rubydoc.info/gems/git/Git#open-class_method)
+* initializing a new repository with [Git.init](https://rubydoc.info/gems/git/Git#init-class_method)
+* cloning a repository with [Git.clone](https://rubydoc.info/gems/git/Git#clone-class_method)
 
-Use this object to define deprecations in the source code:
+Methods that can be called on a repository object are documented in [Git::Base](https://rubydoc.info/gems/git/Git/Base)
 
-```ruby
-Git.deprecation.deprecate_methods(Git::Branch, stashes: 'use Git::Base#stash_list instead')
-```
+## Install
 
-The default action when using deprecated items (methods, classes, etc.) is to output
-a **DEPRECATION WARNING** to `$stderr` like the following:
+You can install Ruby/Git like this:
 
-```text
-DEPRECATION WARNING: stashes is deprecated and will be removed from git 2.0.0 (use Git::Base.stash_list instead)
 ```
-
-The action taken when a deprecated item is used is defined by setting the behavior
-on the deprecation object:
-
-```ruby
-# Log all deprecation warnings to $stderr (the default)
-Git.deprecation = :stderr
-
-# Raise an ActiveSupport::DeprecationException
-Git.deprecation = :raise
-
-# Do nothing
-Git.deprecation = :silence
+sudo gem install git
 ```
 
-See [ActiveSupport::Deprecation](https://api.rubyonrails.org/classes/ActiveSupport/Deprecation.html)
-for more details on how to use deprecations.
+## Code Status
+
+* [![Build Status](https://github.com/ruby-git/ruby-git/workflows/CI/badge.svg?branch=master)](https://github.com/ruby-git/ruby-git/actions?query=workflow%3ACI)
+* [![Code Climate](https://codeclimate.com/github/ruby-git/ruby-git.png)](https://codeclimate.com/github/ruby-git/ruby-git)
+* [![Gem Version](https://badge.fury.io/rb/git.svg)](https://badge.fury.io/rb/git)
 
 ## Major Objects
 

Rakefile

@@ -18,7 +18,7 @@ task :test do
 end
 default_tasks << :test
 
-unless RUBY_PLATFORM == 'java' || RUBY_ENGINE == 'truffleruby'
+unless RUBY_PLATFORM == 'java'
   #
   # YARD documentation for this project can NOT be built with JRuby.
   # This project uses the redcarpet gem which can not be installed on JRuby.

git.gemspec

@@ -26,7 +26,6 @@ Gem::Specification.new do |s|
   s.required_rubygems_version = Gem::Requirement.new('>= 0') if s.respond_to?(:required_rubygems_version=)
   s.requirements = ['git 1.6.0.0, or greater']
 
-  s.add_runtime_dependency 'activesupport', '>= 4.0.0'
   s.add_runtime_dependency 'addressable', '~> 2.8'
   s.add_runtime_dependency 'rchardet', '~> 1.8'
 

lib/git.rb

@@ -1,32 +1,7 @@
-require 'active_support/deprecation'
-
-module Git
-  # An object used to manage deprecations
-  #
-  # A ActiveSupport::Deprecation object used to manage the deprecations scheduled
-  # to be removed in the next major release of the `git`` gem.
-  #
-  # @example Deprecate a method
-  #   Git.deprecation.deprecate_methods(Git::Branch, stashes: 'use Git::Base#stash_list instead')
-  #
-  # @example Set the deprecation behavior
-  #   # Log all deprecation warnings to $stderr (the default)
-  #   Git.deprecation.behavior = :stderr
-  #
-  #   # Raise an ActiveSupport::DeprecationException
-  #   Git.deprecation.behavior = :raise
-  #
-  #   # Do nothing
-  #   Git.deprecation.behavior = :raise
-  #
-  # @see https://api.rubyonrails.org/classes/ActiveSupport/Deprecation.html ActiveSupport::Deprecation
-  #
-  # @return [ActiveSupport::Deprecation]
-  #
-  def self.deprecation
-    @deprecation ||= ActiveSupport::Deprecation.new('2.0.0', 'git')
-  end
-end
+# Add the directory containing this file to the start of the load path if it
+# isn't there already.
+$:.unshift(File.dirname(__FILE__)) unless
+  $:.include?(File.dirname(__FILE__)) || $:.include?(File.expand_path(File.dirname(__FILE__)))
 
 require 'git/author'
 require 'git/base'

tests/test_helper.rb

@@ -5,8 +5,6 @@
 
 require "git"
 
-Git.deprecation.behavior = :silence
-
 class Test::Unit::TestCase
 
   TEST_ROOT = File.expand_path(__dir__)