Fix: #4219: Add CodeClimate Platform.

.codeclimate.yml

@@ -0,0 +1,46 @@
+engines:
+  rubocop:
+    enabled: true
+    checks:
+      Rubocop/Style/SpaceInsideBrackets: { enabled: false }
+      Rubocop/Style/BracesAroundHashParameters: { enabled: false}
+      Rubocop/Style/EmptyLinesAroundAccessModifier: { enabled: false }
+      Rubocop/Style/EmptyLinesAroundModuleBody: { enabled: false }
+      Rubocop/Lint/FormatParameterMismatch: { enabled: false }
+      Rubocop/Lint/UselessAccessModifier:   { enabled: false }
+      Rubocop/Lint/AssignmentInCondition:   { enabled: false }
+      Rubocop/Style/SpaceAroundOperators:   { enabled: false }
+      Rubocop/Style/AlignParameters:        { enabled: false }
+      Rubocop/Style/SignalException:        { enabled: false }
+      Rubocop/Style/Documentation:          { enabled: false }
+      Rubocop/Style/DoubleNegation:         { enabled: false }
+      Rubocop/Style/UnneededCapitalW:       { enabled: false }
+      Rubocop/Style/IfUnlessModifier:       { enabled: false }
+      Rubocop/Style/RescueModifier:         { enabled: false }
+      Rubocop/Style/RegexpLiteral:          { enabled: false }
+      Rubocop/Style/GuardClause:            { enabled: false }
+      Rubocop/Style/FileName:               { enabled: false }
+  fixme:
+    enabled: false
+exclude_paths:
+- .rubocop.yml
+- .codeclimate.yml
+- .travis.yml
+- .gitignore
+- .rspec
+
+- Gemfile.lock
+- CHANGELOG.md
+- readme.md
+- README.md
+- Readme.md
+- ReadMe.md
+- COPYING
+- LICENSE
+
+- test/**/*
+- script/**/*
+- spec/**/*
+ratings:
+  paths:
+  - lib/**/*

.gitignore

@@ -18,3 +18,4 @@ tmp/*
 .jekyll-metadata
 /vendor
 /test/source/file_name.txt
+.analysis

.rubocop.yml

@@ -0,0 +1,27 @@
+Style/IndentHash: { EnforcedStyle: align_braces }
+Style/StringLiteralsInInterpolation: { EnforcedStyle: double_quotes }
+Style/StringLiterals: { EnforcedStyle: none }
+Metrics/MethodLength: { Max:  24 }
+Metrics/ClassLength:  { Max: 240 }
+Metrics/ModuleLength: { Max: 240 }
+Metrics/LineLength:   { Max: 112 }
+
+Style/HashSyntax:
+  UseHashRocketsWithSymbolValues: false
+  SupportedStyles: [ruby19 ruby19_no_mixed_keys, hash_rockets]
+  EnforcedStyle: ruby19
+
+Style/MultilineOperationIndentation:
+  EnforcedStyle: indented
+  SupportedStyles:
+    - indented
+
+Style/PercentLiteralDelimiters:
+  PreferredDelimiters:
+    '%q': '{}'
+    '%Q': '{}'
+    '%r': '!!'
+    '%s': '()'
+    '%w': '()'
+    '%W': '()'
+    '%x': '()'

Rakefile

@@ -329,3 +329,40 @@ namespace :docs do
     sh "mv #{docs_name}-#{version}.gem pkg"
   end
 end
+
+task :analysis do
+  require "jekyll/utils/ansi"
+  require "open3"
+
+  cmd = [
+    "docker", "run", "--rm", "--env=CODE_PATH=#{Dir.pwd}", \
+    "--volume='#{Dir.pwd}:/code'", "--volume=/var/run/docker.sock:/var/run/docker.sock", \
+    "--volume=/tmp/cc:/tmp/cc", "-i", "codeclimate/codeclimate", "analyze"
+  ]
+
+  ansi = Jekyll::Utils::Ansi
+  file = File.open(".analysis", "w+")
+  Open3.popen3(cmd.shelljoin) do |_, out, err, _|
+    while data = out.gets
+      file.write data
+      if data =~ /\A==/
+        $stdout.print ansi.yellow(data)
+
+      elsif data !~ %r!\A[0-9\-]+!
+        $stdout.puts data
+
+      else
+        h, d = data.split(":", 2)
+        $stdout.print ansi.cyan(h)
+        $stdout.print ":", d
+      end
+    end
+
+    while data = err.gets
+      file.write data
+      $stderr.print ansi.red(data)
+    end
+  end
+
+  file.close
+end

lib/jekyll/utils.rb

@@ -1,6 +1,7 @@
 module Jekyll
   module Utils extend self
     autoload :Platforms, 'jekyll/utils/platforms'
+    autoload :Ansi, "jekyll/utils/ansi"
 
     # Constants for use in #slugify
     SLUGIFY_MODES = %w{raw default pretty}

lib/jekyll/utils/ansi.rb

@@ -0,0 +1,59 @@
+# Frozen-string-literal: true
+# Copyright: 2015 Jekyll - MIT License
+# Encoding: utf-8
+
+module Jekyll
+  module Utils
+    module Ansi
+      extend self
+
+      ESCAPE = format("%c", 27)
+      MATCH = /#{ESCAPE}\[(?:\d+)(?:;\d+)*(j|k|m|s|u|A|B|G)|\e\(B\e\[m/ix.freeze
+      COLORS = {
+        :red => 31,
+        :green => 32,
+        :black => 30,
+        :magenta => 35,
+        :yellow => 33,
+        :white => 37,
+        :blue => 34,
+        :cyan => 36
+      }
+
+      # Strip ANSI from the current string.  It also strips cursor stuff,
+      # well some of it, and it also strips some other stuff that a lot of
+      # the other ANSI strippers don't.
+
+      def strip(str)
+        str.gsub MATCH, ""
+      end
+
+      #
+
+      def has?(str)
+        !!(str =~ MATCH)
+      end
+      
+      # Reset the color back to the default color so that you do not leak any
+      # colors when you move onto the next line. This is probably normally
+      # used as part of a wrapper so that we don't leak colors.
+
+      def reset(str = "")
+        @ansi_reset ||= format("%c[0m", 27)
+        "#{@ansi_reset}#{str}"
+      end
+
+      # SEE: `self::COLORS` for a list of methods.  They are mostly
+      # standard base colors supported by pretty much any xterm-color, we do
+      # not need more than the base colors so we do not include them.
+      # Actually... if I'm honest we don't even need most of the
+      # base colors.
+
+      COLORS.each do |color, num|
+        define_method color do |str|
+          "#{format("%c", 27)}[#{num}m#{str}#{reset}"
+        end
+      end
+    end
+  end
+end

lib/jekyll/utils/platforms.rb

@@ -1,6 +1,7 @@
 module Jekyll
   module Utils
-    module Platforms extend self
+    module Platforms
+      extend self
 
       # Provides jruby? and mri? which respectively detect these two types of
       # tested Engines we support, in the future we might probably support the

test/test_ansi.rb

@@ -0,0 +1,23 @@
+require "helper"
+
+class TestAnsi < JekyllUnitTest
+  context nil do
+    setup do
+      @subject = Jekyll::Utils::Ansi
+    end
+
+    Jekyll::Utils::Ansi::COLORS.each do |color, val|
+      should "respond_to? #{color}" do
+        assert @subject.respond_to?(color)
+      end
+    end
+
+    should "be able to strip colors" do
+      assert_equal @subject.strip(@subject.yellow(@subject.red("hello"))), "hello"
+    end
+
+    should "be able to detect colors" do
+      assert @subject.has?(@subject.yellow("hello"))
+    end
+  end
+end