[Misc] Add rubocop and solargraph config

A bunch of rules are disabled or tweaked for the current style

.rubocop.yml

@@ -0,0 +1,116 @@
+require:
+  - rubocop-rails
+
+AllCops:
+  NewCops: enable
+  Exclude:
+    - "bin/*"
+    - "node_modules/**/*"
+
+Bundler/OrderedGems:
+  Enabled: false
+
+Layout/EmptyLineAfterGuardClause:
+  Enabled: false
+
+Layout/EmptyLineBetweenDefs:
+  Enabled: false
+
+Layout/LineLength:
+  Enabled: false
+
+Lint/InheritException:
+  Enabled: false
+
+Lint/RescueException:
+  Enabled: false
+
+Metrics/AbcSize:
+  Enabled: false
+
+Metrics/BlockLength:
+  Enabled: false
+
+Metrics/ClassLength:
+  Enabled: false
+
+Metrics/CyclomaticComplexity:
+  Enabled: false
+
+Metrics/MethodLength:
+  Enabled: false
+
+Metrics/ModuleLength:
+  Enabled: false
+
+Metrics/PerceivedComplexity:
+  Enabled: false
+
+Naming/PredicateName:
+  Enabled: false
+
+Rails/HasManyOrHasOneDependent:
+  Enabled: false
+
+Rails/HttpStatus:
+  EnforcedStyle: numeric
+
+Rails/InverseOf:
+  Enabled: false
+
+Rails/SkipsModelValidations:
+  Enabled: false
+
+Rails/TimeZone:
+  Enabled: false
+
+Rails/WhereEquals:
+  Enabled: false
+
+Rails/WhereExists:
+  EnforcedStyle: where
+
+Style/ConditionalAssignment:
+  Enabled: false
+
+Style/Documentation:
+  Enabled: false
+
+Style/EmptyMethod:
+  EnforcedStyle: expanded
+
+Style/FloatDivision:
+  Enabled: false
+
+Style/FrozenStringLiteralComment:
+  Enabled: false
+
+Style/IfUnlessModifier:
+  Enabled: false
+
+Style/MutableConstant:
+  Enabled: false
+
+Style/NumericPredicate:
+  Enabled: false
+
+Style/PerlBackrefs:
+  Enabled: false
+
+Style/QuotedSymbols:
+  Enabled: false
+
+Style/RescueStandardError:
+  Enabled: false
+
+Style/StringLiterals:
+  Enabled: false
+
+Style/StringLiteralsInInterpolation:
+  Enabled: false
+
+Style/SymbolArray:
+  Enabled: false
+
+Style/WordArray:
+  Enabled: false

.solargraph.yml

@@ -0,0 +1,31 @@
+---
+include:
+- "**/*.rb"
+exclude:
+- spec/**/*
+- test/**/*
+- vendor/**/*
+- ".bundle/**/*"
+require:
+- actioncable
+- actionmailer
+- actionpack
+- actionview
+- activejob
+- activemodel
+- activerecord
+- activestorage
+- activesupport
+domains: []
+reporters:
+- rubocop
+- require_not_found
+formatter:
+  rubocop:
+    cops: safe
+    except: []
+    only: []
+    extra_args: []
+require_paths: []
+plugins: []
+max_files: 5000

config/solargraph.rb

@@ -0,0 +1,31 @@
+# The following comments fill some of the gaps in Solargraph's understanding of
+# Rails apps. Since they're all in YARD, they get mapped in Solargraph but
+# ignored at runtime.
+#
+# You can put this file anywhere in the project, as long as it gets included in
+# the workspace maps. It's recommended that you keep it in a standalone file
+# instead of pasting it into an existing one.
+#
+# @!parse
+#   class ActionController::Base
+#     include ActionController::MimeResponds
+#     extend ActiveSupport::Callbacks::ClassMethods
+#     extend AbstractController::Callbacks::ClassMethods
+#   end
+#   class ActiveRecord::Base
+#     extend ActiveRecord::QueryMethods
+#     extend ActiveRecord::FinderMethods
+#     extend ActiveRecord::Associations::ClassMethods
+#     extend ActiveRecord::Inheritance::ClassMethods
+#     include ActiveRecord::Persistence
+#   end
+# @!override ActiveRecord::FinderMethods#find
+#   @overload find(id)
+#     @param id [Integer]
+#     @return [self]
+#   @overload find(list)
+#     @param list [Array]
+#     @return [Array<self>]
+#   @overload find(*args)
+#     @return [Array<self>]
+#   @return [self, Array<self>]