Convert to standardrb (#156)

- I mostly don’t care about this, but there are a couple of things that
  Standard does that I disagree with. They are inherited from Rubocop,
  but Standard fixes many of Rubocop’s nonsense rules.

  - Array literal wrappers %i[], %w[], etc. are just ugly and never
    should have become any sort of standard. I would be happier if this
    part of standard were just completely disabled, because it‘s
    unnecessary and wrong.

  - Quote literals having to be %q() is equally wrong. I’ve avoided the
    issue here because the generated gemspec uses both "unnecessary"
    quote literals (it’s necessary if I say it’s necessary) and the
    wrong wrappers (I wouldn’t use %q<>, but this is generated code).

- I still think that short hashes can be `{ foo: "bar" }`, but I’m
  mostly using Elixir these days, so I don’t mind `%{foo: "bar"}`, so
  I can get used to it in Ruby. It still feels wrong, almost 20 years
  in.

- There are semantic differences between and / &&, or / ||, but in some
  cases the reformatted code is substantially _worse_ to read. Again,
  I mostly don’t _care_ about this difference, but Rubocop’s insistence
  is silly; these should only be replaced where there _is_ ambiguity.

  - Replacing `x = foo or next` should never be replaced with `(x = foo)
    || next`. That’s replacing something that is somewhat readable with
    something damned-near unreadable. Both should be replaced with:

    ```ruby
    x = foo
    next unless x
    ```

- YAML.safe_load works differently between Psych 2.x and Psych 3.x, so
  some updates have been made to make that work cleanly.

Overall, this introduces a lot of churn, but I think will be easier to
deal with updates to `standardrb` instead of the rapid churn that has
been Rubocop.

1 files changed, 7 insertions, 7 deletions

diff --git a/lib/mime/types/registry.rb b/lib/mime/types/registry.rb
index 5c8e5c7..8d92d65 100644
--- a/lib/mime/types/registry.rb
+++ b/lib/mime/types/registry.rb
@@ -33,7 +33,7 @@ class << MIME::Types
   def type_for(filename)
     __types__.type_for(filename)
   end
-  alias of type_for
+  alias_method :of, :type_for
 
   # MIME::Types#add against the default MIME::Types registry.
   def add(*types)
@@ -43,22 +43,22 @@ class << MIME::Types
   private
 
   def lazy_load?
-    return unless ENV.key?('RUBY_MIME_TYPES_LAZY_LOAD')
+    return unless ENV.key?("RUBY_MIME_TYPES_LAZY_LOAD")
 
-    MIME::Types.logger.warn <<-WARNING.chomp
-Lazy loading ($RUBY_MIME_TYPES_LAZY_LOAD) is deprecated and will be removed.
+    MIME::Types.logger.warn <<~WARNING.chomp
+      Lazy loading ($RUBY_MIME_TYPES_LAZY_LOAD) is deprecated and will be removed.
     WARNING
 
-    (lazy = ENV['RUBY_MIME_TYPES_LAZY_LOAD']) && (lazy != 'false')
+    (lazy = ENV["RUBY_MIME_TYPES_LAZY_LOAD"]) && (lazy != "false")
   end
 
   def __types__
-    (defined?(@__types__) and @__types__) or load_default_mime_types
+    (defined?(@__types__) && @__types__) || load_default_mime_types
   end
 
   unless private_method_defined?(:load_mode)
     def load_mode
-      { columnar: true }
+      {columnar: true}
     end
   end