Add initial Rubocop configuration

.rubocop.yml

@@ -0,0 +1,134 @@
+inherit_from: .rubocop_todo.yml
+
+AllCops:
+  Exclude:
+    - 'Gemfile'
+    - 'Rakefile'
+    - 'test/**/*'
+    - 'modules/**/*'
+
+Bundler/OrderedGems:
+  Enabled: false
+
+Layout/HashAlignment:
+  Enabled: false
+
+Layout/ParameterAlignment:
+  Enabled: false
+
+Layout/DotPosition:
+  Enabled: false
+
+Metrics:
+  Enabled: false
+
+Naming/FileName:
+  Enabled: false
+
+Style/Alias:
+  EnforcedStyle: prefer_alias_method
+
+Style/AndOr:
+  EnforcedStyle: conditionals
+
+# Don't prefer is_a? over kind_of?
+Style/ClassCheck:
+  Enabled: false
+
+# Don't enforce certain methods, e.g. detect over find
+Style/CollectionMethods:
+  Enabled: false
+
+Style/ConditionalAssignment:
+  Enabled: false
+
+# Don't enforce documentation
+Style/Documentation:
+  Enabled: false
+
+Style/EmptyMethod:
+  EnforcedStyle: expanded
+
+# Don't enforce frozen string literals
+Style/FrozenStringLiteralComment:
+  Enabled: false
+
+Style/GuardClause:
+  Enabled: false
+
+Style/HashEachMethods:
+  Enabled: true
+
+# Support both, Ruby 1.9 hashmap and hash-rocket syntax
+Style/HashSyntax:
+  Enabled: false
+
+Style/HashTransformKeys:
+  Enabled: true
+
+Style/HashTransformValues:
+  Enabled: true
+
+Style/IfUnlessModifier:
+  Enabled: false
+
+Style/InverseMethods:
+  Enabled: false
+
+# disabled until we can configure "+" as concat sign
+Style/LineEndConcatenation:
+  Enabled: false
+
+# Won't work with sqlite
+Style/MultipleComparison:
+  Enabled: false
+
+Style/ParallelAssignment:
+  Enabled: false
+
+Style/ParenthesesAroundCondition:
+  Enabled: false
+
+Style/PreferredHashMethods:
+  Enabled: false
+
+# Both double and single quotes are OK
+Style/StringLiterals:
+  Enabled: false
+
+Style/TernaryParentheses:
+  EnforcedStyle: require_parentheses_when_complex
+
+Style/TrailingCommaInArrayLiteral:
+  EnforcedStyleForMultiline: comma
+
+Style/TrailingCommaInHashLiteral:
+  EnforcedStyleForMultiline: comma
+
+#Allow both ['a', 'b'], %w[a b] and %w(a b) style arrays
+Style/WordArray:
+  Enabled: false
+
+Layout/LineLength:
+  Enabled: false
+
+Style/SafeNavigation:
+  Enabled: false
+
+Style/StderrPuts:
+  Enabled: false
+
+Lint/SendWithMixinArgument:
+  Enabled: false
+
+Style/NumericPredicate:
+  Enabled: false
+
+Layout/HeredocIndentation:
+  Enabled: false
+
+Layout/SpaceInsideHashLiteralBraces:
+  Enabled: false
+
+Style/RaiseArgs:
+  Enabled: false