Release 3.3.1 that drops Rails 4.2 compatibility

Author: gsamokovarov

CHANGELOG.markdown

@@ -2,6 +2,10 @@
 
 ## master (unreleased)
 
+## 3.3.1
+
+Drop support for Rails `4.2.0`.
+
 ## 3.3.0
 
 * [203](https://github.com/rails/web-console/pull/203) Map bindings to traces based on the trace __FILE__ and __LINE__ ([@gsamokovarov])

lib/web_console/extensions.rb

@@ -24,10 +24,7 @@ module ActionDispatch
   class DebugExceptions
     def render_exception_with_web_console(request, exception)
       render_exception_without_web_console(request, exception).tap do
-        # Retain superficial Rails 4.2 compatibility.
-        env = Hash === request ? request : request.env
-
-        backtrace_cleaner = env['action_dispatch.backtrace_cleaner']
+        backtrace_cleaner = request.get_header('action_dispatch.backtrace_cleaner')
         error = ExceptionWrapper.new(backtrace_cleaner, exception).exception
 
         # Get the original exception if ExceptionWrapper decides to follow it.

lib/web_console/integration.rb

@@ -1,25 +1,12 @@
-module WebConsole
-  # Returns the Ruby bindings of Kernel#callers locations.
-  #
-  # The list of bindings here doesn't map 1 to 1 with Kernel#callers, as we
-  # can't build Ruby bindings for C functions or the equivalent native
-  # implementations in JRuby and Rubinius.
-  #
-  # This method needs to be overridden by every integration.
-  def self.caller_bindings
-    raise NotImplementedError
-  end
-end
-
 class Exception
   # Returns an array of the exception backtrace locations bindings.
   #
   # The list won't map to the traces in #backtrace 1 to 1, because we can't
   # build bindings for every trace (C functions, for example).
   #
-  # Every integration should the instance variable.
+  # Every integration should set the instance variable.
   def bindings
-    (defined?(@bindings) && @bindings) || []
+    defined?(@bindings) ? @bindings : []
   end
 end
 
@@ -28,4 +15,19 @@ def bindings
   require 'web_console/integration/rubinius'
 when 'ruby'
   require 'web_console/integration/cruby'
+else
+  # Prevent a `method redefined; discarding old caller_bindings` warning.
+
+  module WebConsole
+    # Returns the Ruby bindings of Kernel#callers locations.
+    #
+    # The list of bindings here doesn't map 1 to 1 with Kernel#callers, as we
+    # can't build Ruby bindings for C functions or the equivalent native
+    # implementations in JRuby and Rubinius.
+    #
+    # This method needs to be overridden by every integration.
+    def self.caller_bindings
+      raise NotImplementedError
+    end
+  end
 end

lib/web_console/version.rb

@@ -1,3 +1,3 @@
 module WebConsole
-  VERSION = '3.3.0'
+  VERSION = '3.3.1'
 end

web-console.gemspec

@@ -15,9 +15,10 @@ Gem::Specification.new do |s|
 
   s.required_ruby_version = '>= 2.2.2'
 
-  rails_version = ">= 4.2"
+  rails_version = ">= 5.0"
 
   s.add_dependency "railties",    rails_version
   s.add_dependency "activemodel", rails_version
+  s.add_dependency "actionview",  rails_version
   s.add_dependency "debug_inspector"
 end