chore: RuboCop lint Style/Redundant* cops

.rubocop_todo.yml

@@ -1,6 +1,6 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2019-02-27 21:25:04 +0100 using RuboCop version 0.65.0.
+# on 2019-02-27 21:48:38 +0100 using RuboCop version 0.65.0.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
@@ -450,15 +450,14 @@ Style/MutableConstant:
     - 'lib/faraday/response/raise_error.rb'
     - 'lib/faraday/utils.rb'
 
-# Offense count: 9
+# Offense count: 8
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle.
 # SupportedStyles: both, prefix, postfix
 Style/NegatedIf:
   Exclude:
     - 'lib/faraday.rb'
     - 'lib/faraday/adapter/em_http.rb'
-    - 'lib/faraday/adapter/test.rb'
     - 'lib/faraday/connection.rb'
     - 'lib/faraday/encoders/flat_params_encoder.rb'
     - 'lib/faraday/encoders/nested_params_encoder.rb'
@@ -583,42 +582,6 @@ Style/RaiseArgs:
     - 'lib/faraday/middleware_registry.rb'
     - 'test/adapters/integration.rb'
 
-# Offense count: 1
-# Cop supports --auto-correct.
-Style/RedundantException:
-  Exclude:
-    - 'spec/faraday/adapter/patron_spec.rb'
-
-# Offense count: 1
-# Cop supports --auto-correct.
-Style/RedundantParentheses:
-  Exclude:
-    - 'lib/faraday/rack_builder.rb'
-
-# Offense count: 9
-# Cop supports --auto-correct.
-# Configuration parameters: AllowMultipleReturnValues.
-Style/RedundantReturn:
-  Exclude:
-    - 'lib/faraday/adapter/test.rb'
-    - 'lib/faraday/encoders/flat_params_encoder.rb'
-    - 'lib/faraday/encoders/nested_params_encoder.rb'
-    - 'lib/faraday/request/multipart.rb'
-    - 'lib/faraday/response.rb'
-    - 'script/generate_certs'
-
-# Offense count: 15
-# Cop supports --auto-correct.
-Style/RedundantSelf:
-  Exclude:
-    - 'lib/faraday/adapter.rb'
-    - 'lib/faraday/connection.rb'
-    - 'lib/faraday/dependency_loader.rb'
-    - 'lib/faraday/options.rb'
-    - 'lib/faraday/rack_builder.rb'
-    - 'lib/faraday/utils/headers.rb'
-    - 'test/adapters/integration.rb'
-
 # Offense count: 10
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle, AllowInnerSlashes.

lib/faraday/adapter.rb

@@ -28,7 +28,7 @@ def supports_parallel?() @supports_parallel end
 
       def inherited(subclass)
         super
-        subclass.supports_parallel = self.supports_parallel?
+        subclass.supports_parallel = supports_parallel?
       end
     end
 

lib/faraday/adapter/test.rb

@@ -56,7 +56,7 @@ def empty?
         end
 
         def match(request_method, host, path, headers, body)
-          return false if !@stack.key?(request_method)
+          return false unless @stack.key?(request_method)
 
           stack = @stack[request_method]
           consumed = (@consumed[request_method] ||= [])
@@ -149,11 +149,11 @@ def matches?(request_host, request_uri, request_headers, request_body)
           # meta is a hash use as carrier
           # that will be yielded to consumer block
           meta = {}
-          return (host.nil? || host == request_host) &&
-                 path_match?(request_path, meta) &&
-                 params_match?(request_params) &&
-                 (body.to_s.size.zero? || request_body == body) &&
-                 headers_match?(request_headers), meta
+          [(host.nil? || host == request_host) &&
+            path_match?(request_path, meta) &&
+            params_match?(request_params) &&
+            (body.to_s.size.zero? || request_body == body) &&
+            headers_match?(request_headers), meta]
         end
 
         def path_match?(request_path, meta)

lib/faraday/connection.rb

@@ -493,9 +493,9 @@ def run_request(method, url, body, headers)
     # @return [Faraday::Request]
     def build_request(method)
       Request.create(method) do |req|
-        req.params  = self.params.dup
-        req.headers = self.headers.dup
-        req.options = self.options
+        req.params  = params.dup
+        req.headers = headers.dup
+        req.options = options
         yield(req) if block_given?
       end
     end
@@ -586,12 +586,12 @@ def find_default_proxy
     end
 
     def proxy_for_request(url)
-      return self.proxy if @manual_proxy
+      return proxy if @manual_proxy
 
       if url && Utils.URI(url).absolute?
         proxy_from_env(url)
       else
-        self.proxy
+        proxy
       end
     end
   end

lib/faraday/dependency_loader.rb

@@ -24,7 +24,7 @@ def loaded?
 
     def inherited(subclass)
       super
-      subclass.send(:load_error=, self.load_error)
+      subclass.send(:load_error=, load_error)
     end
   end
 end

lib/faraday/encoders/flat_params_encoder.rb

@@ -42,7 +42,7 @@ def self.encode(params)
           buffer << "#{encoded_key}=#{encoded_value}&"
         end
       end
-      return buffer.chop
+      buffer.chop
     end
 
     def self.decode(query)
@@ -52,7 +52,7 @@ def self.decode(query)
       split_query = (query.split('&').map do |pair|
         pair.split('=', 2) if pair && !pair.empty?
       end).compact
-      return split_query.inject(empty_accumulator.dup) do |accu, pair|
+      split_query.inject(empty_accumulator.dup) do |accu, pair|
         pair[0] = unescape(pair[0])
         pair[1] = true if pair[1].nil?
         if pair[1].respond_to?(:to_str)

lib/faraday/encoders/nested_params_encoder.rb

@@ -70,7 +70,7 @@ def self.encode(params)
         encoded_parent = escape(parent)
         buffer << "#{to_query.call(encoded_parent, value)}&"
       end
-      return buffer.chop
+      buffer.chop
     end
 
     # @param query [nil, String]

lib/faraday/options.rb

@@ -30,7 +30,7 @@ def update(obj)
           new_value = value
         end
 
-        self.send("#{key}=", new_value) unless new_value.nil?
+        send("#{key}=", new_value) unless new_value.nil?
       end
       self
     end
@@ -50,10 +50,10 @@ def clear
     # Public
     def merge!(other)
       other.each do |key, other_value|
-        self_value = self.send(key)
+        self_value = send(key)
         sub_options = self.class.options_for(key)
         new_value = (self_value && sub_options && other_value) ? self_value.merge(other_value) : other_value
-        self.send("#{key}=", new_value) unless new_value.nil?
+        send("#{key}=", new_value) unless new_value.nil?
       end
       self
     end

lib/faraday/rack_builder.rb

@@ -42,7 +42,7 @@ def inspect() @name end
 
       def ==(other)
         if other.is_a? Handler
-          self.name == other.name
+          name == other.name
         elsif other.respond_to? :name
           klass == other
         else
@@ -62,7 +62,7 @@ def initialize(handlers = [], adapter = nil, &block)
         build(&block)
       elsif @handlers.empty?
         # default stack, if nothing else is configured
-        self.request :url_encoded
+        request :url_encoded
         self.adapter Faraday.default_adapter
       end
     end
@@ -170,7 +170,7 @@ def app
     def to_app
       # last added handler is the deepest and thus closest to the inner app
       # adapter is always the last one
-      (@handlers).reverse.inject(@adapter.build) { |app, handler| handler.build(app) }
+      @handlers.reverse.inject(@adapter.build) { |app, handler| handler.build(app) }
     end
 
     def ==(other)

lib/faraday/request/multipart.rb

@@ -55,7 +55,7 @@ def create_multipart(env, params)
 
       body = Faraday::CompositeReadIO.new(parts)
       env.request_headers[Faraday::Env::ContentLength] = body.length.to_s
-      return body
+      body
     end
 
     # @return [String]

lib/faraday/response.rb

@@ -60,15 +60,15 @@ def on_complete
       else
         yield(env)
       end
-      return self
+      self
     end
 
     def finish(env)
       raise 'response already finished' if finished?
 
       @env = env.is_a?(Env) ? env : Env.from(env)
       @on_complete_callbacks.each { |callback| callback.call(@env) }
-      return self
+      self
     end
 
     def success?
@@ -97,7 +97,7 @@ def apply_request(request_env)
       raise "response didn't finish yet" unless finished?
 
       @env = Env.from(request_env).update(@env)
-      return self
+      self
     end
   end
 end

lib/faraday/utils/headers.rb

@@ -20,7 +20,7 @@ def self.allocate
       def initialize(hash = nil)
         super()
         @names = {}
-        self.update(hash || {})
+        update(hash || {})
       end
 
       def initialize_names
@@ -99,7 +99,7 @@ def merge(other)
       def replace(other)
         clear
         @names.clear
-        self.update other
+        update other
         self
       end
 

script/generate_certs

@@ -23,7 +23,7 @@ def create_self_signed_cert(bits, cn, comment)
   cert.not_after = Time.now + (365 * 24 * 60 * 60)
   cert.public_key = rsa.public_key
   cert.sign(rsa, OpenSSL::Digest::SHA1.new)
-  return [cert, rsa]
+  [cert, rsa]
 end
 
 def write(file, contents, env_var)

spec/faraday/adapter/patron_spec.rb

@@ -9,7 +9,7 @@
     conn = Faraday.new do |f|
       f.adapter :patron do |session|
         session.max_redirects = 10
-        raise RuntimeError, 'Configuration block called'
+        raise 'Configuration block called'
       end
     end
 

test/adapters/integration.rb

@@ -16,7 +16,7 @@ def self.apply(base, *extra_features)
         features = [:Common]
         features.concat extra_features
         features << :SSL if base.ssl_mode?
-        features.each { |name| base.send(:include, self.const_get(name)) }
+        features.each { |name| base.send(:include, const_get(name)) }
         yield if block_given?
       elsif !defined? @warned
         warn 'Warning: Not running integration tests against a live server.'