Merge branch 'master' into 2489-soft-delete-issues

.rubocop.yml

+AllCops:
+  TargetRubyVersion: 2.1
+  # Cop names are not displayed in offense messages by default. Change behavior
+  # by overriding DisplayCopNames, or by giving the -D/--display-cop-names
+  # option.
+  DisplayCopNames: true
+  # Style guide URLs are not displayed in offense messages by default. Change
+  # behavior by overriding DisplayStyleGuide, or by giving the
+  # -S/--display-style-guide option.
+  DisplayStyleGuide: false
+  # Exclude some GitLab files
+  Exclude:
+    - 'vendor/**/*'
+    - 'db/**/*'
+    - 'tmp/**/*'
+    - 'bin/**/*'
+    - 'lib/backup/**/*'
+    - 'lib/ci/backup/**/*'
+    - 'lib/tasks/**/*'
+    - 'lib/ci/migrate/**/*'
+    - 'lib/email_validator.rb'
+    - 'lib/gitlab/upgrader.rb'
+    - 'lib/gitlab/seeder.rb'
+
+
+##################### Style ##################################
+
+# Check indentation of private/protected visibility modifiers.
 Style/AccessModifierIndentation:
-  Description: Check indentation of private/protected visibility modifiers.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#indent-public-private-protected'
   Enabled: true
 
+# Check the naming of accessor methods for get_/set_.
 Style/AccessorMethodName:
-  Description: Check the naming of accessor methods for get_/set_.
   Enabled: false
 
+# Use alias_method instead of alias.
 Style/Alias:
-  Description: 'Use alias_method instead of alias.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#alias-method'
+  EnforcedStyle: prefer_alias_method
   Enabled: true
 
+# Align the elements of an array literal if they span more than one line.
 Style/AlignArray:
-  Description: >-
-                 Align the elements of an array literal if they span more than
-                 one line.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#align-multiline-arrays'
   Enabled: true
 
+# Align the elements of a hash literal if they span more than one line.
 Style/AlignHash:
-  Description: >-
-                 Align the elements of a hash literal if they span more than
-                 one line.
   Enabled: true
 
+# Align the parameters of a method call if they span more than one line.
 Style/AlignParameters:
-  Description: >-
-                 Align the parameters of a method call if they span more
-                 than one line.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-double-indent'
   Enabled: false
 
+# Use &&/|| instead of and/or.
 Style/AndOr:
-  Description: 'Use &&/|| instead of and/or.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-and-or-or'
   Enabled: false
 
+# Use `Array#join` instead of `Array#*`.
 Style/ArrayJoin:
-  Description: 'Use Array#join instead of Array#*.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#array-join'
   Enabled: false
 
+# Use only ascii symbols in comments.
 Style/AsciiComments:
-  Description: 'Use only ascii symbols in comments.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#english-comments'
   Enabled: true
 
+# Use only ascii symbols in identifiers.
 Style/AsciiIdentifiers:
-  Description: 'Use only ascii symbols in identifiers.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#english-identifiers'
   Enabled: true
 
+# Checks for uses of Module#attr.
 Style/Attr:
-  Description: 'Checks for uses of Module#attr.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#attr'
   Enabled: false
 
+# Avoid the use of BEGIN blocks.
 Style/BeginBlock:
-  Description: 'Avoid the use of BEGIN blocks.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-BEGIN-blocks'
   Enabled: true
 
+# Checks if usage of %() or %Q() matches configuration.
 Style/BarePercentLiterals:
-  Description: 'Checks if usage of %() or %Q() matches configuration.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#percent-q-shorthand'
   Enabled: false
 
+# Do not use block comments.
 Style/BlockComments:
-  Description: 'Do not use block comments.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-block-comments'
   Enabled: false
 
+# Put end statement of multiline block on its own line.
 Style/BlockEndNewline:
-  Description: 'Put end statement of multiline block on its own line.'
   Enabled: true
 
+# Avoid using {...} for multi-line blocks (multiline chaining is # always
+# ugly). Prefer {...} over do...end for single-line blocks.
 Style/BlockDelimiters:
-  Description: >-
-                Avoid using {...} for multi-line blocks (multiline chaining is
-                always ugly).
-                Prefer {...} over do...end for single-line blocks.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#single-line-blocks'
   Enabled: true
 
+# Enforce braces style around hash parameters.
 Style/BracesAroundHashParameters:
-  Description: 'Enforce braces style around hash parameters.'
   Enabled: false
 
+# Avoid explicit use of the case equality operator(===).
 Style/CaseEquality:
-  Description: 'Avoid explicit use of the case equality operator(===).'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-case-equality'
   Enabled: false
 
+# Indentation of when in a case/when/[else/]end.
 Style/CaseIndentation:
-  Description: 'Indentation of when in a case/when/[else/]end.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#indent-when-to-case'
   Enabled: true
 
+# Checks for uses of character literals.
 Style/CharacterLiteral:
-  Description: 'Checks for uses of character literals.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-character-literals'
   Enabled: true
 
+# Use CamelCase for classes and modules.'
 Style/ClassAndModuleCamelCase:
-  Description: 'Use CamelCase for classes and modules.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#camelcase-classes'
   Enabled: true
 
+# Checks style of children classes and modules.
 Style/ClassAndModuleChildren:
-  Description: 'Checks style of children classes and modules.'
   Enabled: false
 
+# Enforces consistent use of `Object#is_a?` or `Object#kind_of?`.
 Style/ClassCheck:
-  Description: 'Enforces consistent use of `Object#is_a?` or `Object#kind_of?`.'
   Enabled: false
 
+# Use self when defining module/class methods.
 Style/ClassMethods:
-  Description: 'Use self when defining module/class methods.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#def-self-singletons'
   Enabled: false
 
+# Avoid the use of class variables.
 Style/ClassVars:
-  Description: 'Avoid the use of class variables.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-class-vars'
   Enabled: true
 
+# Do not use :: for method call.
 Style/ColonMethodCall:
-  Description: 'Do not use :: for method call.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#double-colons'
   Enabled: false
 
+# Checks formatting of special comments (TODO, FIXME, OPTIMIZE, HACK, REVIEW).
 Style/CommentAnnotation:
-  Description: >-
-                 Checks formatting of special comments
-                 (TODO, FIXME, OPTIMIZE, HACK, REVIEW).
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#annotate-keywords'
   Enabled: false
 
+# Indentation of comments.
 Style/CommentIndentation:
-  Description: 'Indentation of comments.'
   Enabled: true
 
+# Use the return value of `if` and `case` statements for assignment to a
+# variable and variable comparison instead of assigning that variable
+# inside of each branch.
+Style/ConditionalAssignment:
+  Enabled: false
+
+# Constants should use SCREAMING_SNAKE_CASE.
 Style/ConstantName:
-  Description: 'Constants should use SCREAMING_SNAKE_CASE.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#screaming-snake-case'
   Enabled: true
 
+# Use def with parentheses when there are arguments.
 Style/DefWithParentheses:
-  Description: 'Use def with parentheses when there are arguments.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#method-parens'
   Enabled: false
 
+# Checks for use of deprecated Hash methods.
 Style/DeprecatedHashMethods:
-  Description: 'Checks for use of deprecated Hash methods.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#hash-key'
   Enabled: false
 
+# Document classes and non-namespace modules.
 Style/Documentation:
-  Description: 'Document classes and non-namespace modules.'
   Enabled: false
 
+# Checks the position of the dot in multi-line method calls.
 Style/DotPosition:
-  Description: 'Checks the position of the dot in multi-line method calls.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#consistent-multi-line-chains'
   Enabled: false
 
+# Checks for uses of double negation (!!).
 Style/DoubleNegation:
-  Description: 'Checks for uses of double negation (!!).'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-bang-bang'
   Enabled: false
 
+# Prefer `each_with_object` over `inject` or `reduce`.
 Style/EachWithObject:
-  Description: 'Prefer `each_with_object` over `inject` or `reduce`.'
   Enabled: false
 
+# Align elses and elsifs correctly.
 Style/ElseAlignment:
-  Description: 'Align elses and elsifs correctly.'
   Enabled: true
 
+# Avoid empty else-clauses.
 Style/EmptyElse:
-  Description: 'Avoid empty else-clauses.'
   Enabled: false
 
+# Use empty lines between defs.
 Style/EmptyLineBetweenDefs:
-  Description: 'Use empty lines between defs.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#empty-lines-between-methods'
   Enabled: false
 
+# Don't use several empty lines in a row.
 Style/EmptyLines:
-  Description: "Don't use several empty lines in a row."
   Enabled: false
 
+# Keep blank lines around access modifiers.
 Style/EmptyLinesAroundAccessModifier:
-  Description: "Keep blank lines around access modifiers."
   Enabled: false
 
+# Keeps track of empty lines around block bodies.
 Style/EmptyLinesAroundBlockBody:
-  Description: "Keeps track of empty lines around block bodies."
   Enabled: false
 
+# Keeps track of empty lines around class bodies.
 Style/EmptyLinesAroundClassBody:
-  Description: "Keeps track of empty lines around class bodies."
   Enabled: false
 
+# Keeps track of empty lines around module bodies.
 Style/EmptyLinesAroundModuleBody:
-  Description: "Keeps track of empty lines around module bodies."
   Enabled: false
 
+# Keeps track of empty lines around method bodies.
 Style/EmptyLinesAroundMethodBody:
-  Description: "Keeps track of empty lines around method bodies."
   Enabled: false
 
+# Prefer literals to Array.new/Hash.new/String.new.
 Style/EmptyLiteral:
-  Description: 'Prefer literals to Array.new/Hash.new/String.new.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#literal-array-hash'
   Enabled: false
 
+# Avoid the use of END blocks.
 Style/EndBlock:
-  Description: 'Avoid the use of END blocks.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-END-blocks'
   Enabled: false
 
+# Use Unix-style line endings.
 Style/EndOfLine:
-  Description: 'Use Unix-style line endings.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#crlf'
   Enabled: false
 
+# Favor the use of Fixnum#even? && Fixnum#odd?
 Style/EvenOdd:
-  Description: 'Favor the use of Fixnum#even? && Fixnum#odd?'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#predicate-methods'
   Enabled: false
 
+# Do not use unnecessary spacing.
 Style/ExtraSpacing:
-  Description: 'Do not use unnecessary spacing.'
   Enabled: false
 
+# Use snake_case for source file names.
 Style/FileName:
-  Description: 'Use snake_case for source file names.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#snake-case-files'
   Enabled: false
 
+# Checks for flip flops.
 Style/FlipFlop:
-  Description: 'Checks for flip flops'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-flip-flops'
   Enabled: false
 
+# Checks use of for or each in multiline loops.
 Style/For:
-  Description: 'Checks use of for or each in multiline loops.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-for-loops'
   Enabled: false
 
+# Enforce the use of Kernel#sprintf, Kernel#format or String#%.
 Style/FormatString:
-  Description: 'Enforce the use of Kernel#sprintf, Kernel#format or String#%.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#sprintf'
   Enabled: false
 
+# Do not introduce global variables.
 Style/GlobalVars:
-  Description: 'Do not introduce global variables.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#instance-vars'
   Enabled: false
 
+# Check for conditionals that can be replaced with guard clauses.
 Style/GuardClause:
-  Description: 'Check for conditionals that can be replaced with guard clauses'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-nested-conditionals'
   Enabled: false
 
+# Prefer Ruby 1.9 hash syntax `{ a: 1, b: 2 }`
+# over 1.8 syntax `{ :a => 1, :b => 2 }`.
 Style/HashSyntax:
-  Description: >-
-                 Prefer Ruby 1.9 hash syntax { a: 1, b: 2 } over 1.8 syntax
-                 { :a => 1, :b => 2 }.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#hash-literals'
   Enabled: true
 
+# Finds if nodes inside else, which can be converted to elsif.
+Style/IfInsideElse:
+  Enabled: false
+
+# Favor modifier if/unless usage when you have a single-line body.
 Style/IfUnlessModifier:
-  Description: >-
-                 Favor modifier if/unless usage when you have a
-                 single-line body.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#if-as-a-modifier'
   Enabled: false
 
+# Do not use if x; .... Use the ternary operator instead.
 Style/IfWithSemicolon:
-  Description: 'Do not use if x; .... Use the ternary operator instead.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-semicolon-ifs'
   Enabled: false
 
+# Checks that conditional statements do not have an identical line at the
+# end of each branch, which can validly be moved out of the conditional.
+Style/IdenticalConditionalBranches:
+  Enabled: false
+
+# Checks the indentation of the first line of the right-hand-side of a
+# multi-line assignment. 
+Style/IndentAssignment:
+  Enabled: false
+
+# Keep indentation straight.
 Style/IndentationConsistency:
-  Description: 'Keep indentation straight.'
   Enabled: true
 
+# Use 2 spaces for indentation.
 Style/IndentationWidth:
-  Description: 'Use 2 spaces for indentation.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#spaces-indentation'
   Enabled: true
 
+# Checks the indentation of the first element in an array literal.
 Style/IndentArray:
-  Description: >-
-                 Checks the indentation of the first element in an array
-                 literal.
   Enabled: false
 
+# Checks the indentation of the first key in a hash literal.
 Style/IndentHash:
-  Description: 'Checks the indentation of the first key in a hash literal.'
   Enabled: false
 
+# Use Kernel#loop for infinite loops.
 Style/InfiniteLoop:
-  Description: 'Use Kernel#loop for infinite loops.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#infinite-loop'
   Enabled: false
 
+# Use the new lambda literal syntax for single-line blocks.
 Style/Lambda:
-  Description: 'Use the new lambda literal syntax for single-line blocks.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#lambda-multi-line'
   Enabled: false
 
+# Use lambda.call(...) instead of lambda.(...).
 Style/LambdaCall:
-  Description: 'Use lambda.call(...) instead of lambda.(...).'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#proc-call'
   Enabled: false
 
+# Comments should start with a space.
 Style/LeadingCommentSpace:
-  Description: 'Comments should start with a space.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#hash-space'
   Enabled: false
 
+# Use \ instead of + or << to concatenate two string literals at line end.
 Style/LineEndConcatenation:
-  Description: >-
-                 Use \ instead of + or << to concatenate two string literals at
-                 line end.
   Enabled: false
 
+# Do not use parentheses for method calls with no arguments.
 Style/MethodCallParentheses:
-  Description: 'Do not use parentheses for method calls with no arguments.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-args-no-parens'
   Enabled: false
 
+# Checks if the method definitions have or don't have parentheses.
 Style/MethodDefParentheses:
-  Description: >-
-                 Checks if the method definitions have or don't have
-                 parentheses.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#method-parens'
   Enabled: false
 
+# Use the configured style when naming methods.
 Style/MethodName:
-  Description: 'Use the configured style when naming methods.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#snake-case-symbols-methods-vars'
   Enabled: false
 
+# Checks for usage of `extend self` in modules.
 Style/ModuleFunction:
-  Description: 'Checks for usage of `extend self` in modules.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#module-function'
   Enabled: false
 
+# Avoid multi-line chains of blocks.
 Style/MultilineBlockChain:
-  Description: 'Avoid multi-line chains of blocks.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#single-line-blocks'
   Enabled: false
 
+# Ensures newlines after multiline block do statements.
 Style/MultilineBlockLayout:
-  Description: 'Ensures newlines after multiline block do statements.'
   Enabled: true
 
+# Do not use then for multi-line if/unless.
 Style/MultilineIfThen:
-  Description: 'Do not use then for multi-line if/unless.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-then'
   Enabled: false
 
+# Checks indentation of method calls with the dot operator that span more than
+# one line.
+Style/MultilineMethodCallIndentation:
+  Enabled: false
+
+# Checks indentation of binary operations that span more than one line.
 Style/MultilineOperationIndentation:
-  Description: >-
-                 Checks indentation of binary operations that span more than
-                 one line.
   Enabled: false
 
+# Avoid multi-line `? :` (the ternary operator), use if/unless instead.
 Style/MultilineTernaryOperator:
-  Description: >-
-                 Avoid multi-line ?: (the ternary operator);
-                 use if/unless instead.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-multiline-ternary'
   Enabled: false
 
+# Do not assign mutable objects to constants.
+Style/MutableConstant:
+  Enabled: false
+
+# Favor unless over if for negative conditions (or control flow or).
 Style/NegatedIf:
-  Description: >-
-                 Favor unless over if for negative conditions
-                 (or control flow or).
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#unless-for-negatives'
   Enabled: false
 
+# Favor until over while for negative conditions.
 Style/NegatedWhile:
-  Description: 'Favor until over while for negative conditions.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#until-for-negatives'
   Enabled: false
 
+# Avoid using nested modifiers.
+Style/NestedModifier:
+  Enabled: false
+
+# Parenthesize method calls which are nested inside the argument list of
+# another parenthesized method call.
+Style/NestedParenthesizedCalls:
+  Enabled: false
+
+# Use one expression per branch in a ternary operator.
 Style/NestedTernaryOperator:
-  Description: 'Use one expression per branch in a ternary operator.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-nested-ternary'
   Enabled: true
 
+# Use `next` to skip iteration instead of a condition at the end.
 Style/Next:
-  Description: 'Use `next` to skip iteration instead of a condition at the end.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-nested-conditionals'
   Enabled: false
 
+# Prefer x.nil? to x == nil.
 Style/NilComparison:
-  Description: 'Prefer x.nil? to x == nil.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#predicate-methods'
   Enabled: true
 
+# Checks for redundant nil checks.
 Style/NonNilCheck:
-  Description: 'Checks for redundant nil checks.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-non-nil-checks'
   Enabled: true
 
+# Use ! instead of not.
 Style/Not:
-  Description: 'Use ! instead of not.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#bang-not-not'
   Enabled: true
 
+# Add underscores to large numeric literals to improve their readability.
 Style/NumericLiterals:
-  Description: >-
-                 Add underscores to large numeric literals to improve their
-                 readability.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#underscores-in-numerics'
   Enabled: false
 
+# Favor the ternary operator(?:) over if/then/else/end constructs.
 Style/OneLineConditional:
-  Description: >-
-                 Favor the ternary operator(?:) over
-                 if/then/else/end constructs.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#ternary-operator'
   Enabled: true
 
+# When defining binary operators, name the argument other.
 Style/OpMethod:
-  Description: 'When defining binary operators, name the argument other.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#other-arg'
   Enabled: false
 
+# Check for simple usages of parallel assignment. It will only warn when
+# the number of variables matches on both sides of the assignment.
 Style/ParallelAssignment:
-  Description: >-
-                  Check for simple usages of parallel assignment.
-                  It will only warn when the number of variables
-                  matches on both sides of the assignment.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#parallel-assignment'
   Enabled: false
 
+# Don't use parentheses around the condition of an if/unless/while.
 Style/ParenthesesAroundCondition:
-  Description: >-
-                 Don't use parentheses around the condition of an
-                 if/unless/while.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-parens-if'
   Enabled: true
 
+# Use `%`-literal delimiters consistently.
 Style/PercentLiteralDelimiters:
-  Description: 'Use `%`-literal delimiters consistently'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#percent-literal-braces'
   Enabled: false
 
+# Checks if uses of %Q/%q match the configured preference.
 Style/PercentQLiterals:
-  Description: 'Checks if uses of %Q/%q match the configured preference.'
   Enabled: false
 
+# Avoid Perl-style regex back references.
 Style/PerlBackrefs:
-  Description: 'Avoid Perl-style regex back references.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-perl-regexp-last-matchers'
   Enabled: false
 
+# Check the names of predicate methods.
 Style/PredicateName:
-  Description: 'Check the names of predicate methods.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#bool-methods-qmark'
   Enabled: false
 
+# Use proc instead of Proc.new.
 Style/Proc:
-  Description: 'Use proc instead of Proc.new.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#proc'
   Enabled: false
 
+# Checks the arguments passed to raise/fail.
 Style/RaiseArgs:
-  Description: 'Checks the arguments passed to raise/fail.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#exception-class-messages'
   Enabled: false
 
+# Don't use begin blocks when they are not needed.
 Style/RedundantBegin:
-  Description: "Don't use begin blocks when they are not needed."
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#begin-implicit'
   Enabled: false
 
+# Checks for an obsolete RuntimeException argument in raise/fail.
 Style/RedundantException:
-  Description: "Checks for an obsolete RuntimeException argument in raise/fail."
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-explicit-runtimeerror'
   Enabled: false
 
+# Checks usages of Object#freeze on immutable objects.
+Style/RedundantFreeze:
+  Enabled: false
+
+# TODO: Enable RedundantParentheses Cop.
+# Checks for parentheses that seem not to serve any purpose.
+Style/RedundantParentheses:
+  Enabled: false
+
+# Don't use return where it's not required.
 Style/RedundantReturn:
-  Description: "Don't use return where it's not required."
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-explicit-return'
   Enabled: true
 
+# Don't use self where it's not needed.
 Style/RedundantSelf:
-  Description: "Don't use self where it's not needed."
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-self-unless-required'
   Enabled: false
 
+# Use %r for regular expressions matching more than `MaxSlashes` '/'
+# characters. Use %r only for regular expressions matching more
+# than `MaxSlashes` '/' character.
 Style/RegexpLiteral:
-  Description: >-
-                 Use %r for regular expressions matching more than
-                 `MaxSlashes` '/' characters.
-                 Use %r only for regular expressions matching more than
-                 `MaxSlashes` '/' character.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#percent-r'
   Enabled: false
 
+# Avoid using rescue in its modifier form.
 Style/RescueModifier:
-  Description: 'Avoid using rescue in its modifier form.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-rescue-modifiers'
   Enabled: false
 
+# Checks for places where self-assignment shorthand should have been used.
 Style/SelfAssignment:
-  Description: >-
-                 Checks for places where self-assignment shorthand should have
-                 been used.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#self-assignment'
   Enabled: false
 
+# Don't use semicolons to terminate expressions.
 Style/Semicolon:
-  Description: "Don't use semicolons to terminate expressions."
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-semicolon'
   Enabled: false
 
+# Checks for proper usage of fail and raise.
 Style/SignalException:
-  Description: 'Checks for proper usage of fail and raise.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#fail-method'
   Enabled: false
 
+# Enforces the names of some block params.
 Style/SingleLineBlockParams:
-  Description: 'Enforces the names of some block params.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#reduce-blocks'
   Enabled: false
 
+# Avoid single-line methods.
 Style/SingleLineMethods:
-  Description: 'Avoid single-line methods.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-single-line-methods'
-  Enabled: false
-
-Style/SingleSpaceBeforeFirstArg:
-  Description: >-
-                 Checks that exactly one space is used between a method name
-                 and the first argument for method calls without parentheses.
   Enabled: false
 
+# Use spaces after colons.
 Style/SpaceAfterColon:
-  Description: 'Use spaces after colons.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#spaces-operators'
   Enabled: false
 
+# Use spaces after commas.
 Style/SpaceAfterComma:
-  Description: 'Use spaces after commas.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#spaces-operators'
-  Enabled: false
-
-Style/SpaceAfterControlKeyword:
-  Description: 'Use spaces after if/elsif/unless/while/until/case/when.'
   Enabled: false
 
+# Do not put a space between a method name and the opening parenthesis in a
+# method definition.
 Style/SpaceAfterMethodName:
-  Description: >-
-                 Do not put a space between a method name and the opening
-                 parenthesis in a method definition.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#parens-no-spaces'
   Enabled: false
 
+# Tracks redundant space after the ! operator.
 Style/SpaceAfterNot:
-  Description: Tracks redundant space after the ! operator.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-space-bang'
   Enabled: false
 
+# Use spaces after semicolons.
 Style/SpaceAfterSemicolon:
-  Description: 'Use spaces after semicolons.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#spaces-operators'
   Enabled: false
 
-Style/SpaceBeforeBlockBraces:
-  Description: >-
-                 Checks that the left block brace has or doesn't have space
-                 before it.
+# Checks that the equals signs in parameter default assignments have or don't
+# have surrounding space depending on configuration.
+Style/SpaceAroundEqualsInParameterDefault:
   Enabled: false
 
-Style/SpaceBeforeComma:
-  Description: 'No spaces before commas.'
+# TODO: Enable SpaceAroundKeyword Cop.
+# Use a space around keywords if appropriate.
+Style/SpaceAroundKeyword:
   Enabled: false
 
-Style/SpaceBeforeComment:
-  Description: >-
-                 Checks for missing space between code and a comment on the
-                 same line.
+# Use a single space around operators.
+Style/SpaceAroundOperators:
   Enabled: false
 
-Style/SpaceBeforeSemicolon:
-  Description: 'No spaces before semicolons.'
+# Checks that the left block brace has or doesn't have space before it.
+Style/SpaceBeforeBlockBraces:
   Enabled: false
 
-Style/SpaceInsideBlockBraces:
-  Description: >-
-                 Checks that block braces have or don't have surrounding space.
-                 For blocks taking parameters, checks that the left brace has
-                 or doesn't have trailing space.
+# No spaces before commas.
+Style/SpaceBeforeComma:
   Enabled: false
 
-Style/SpaceAroundEqualsInParameterDefault:
-  Description: >-
-                 Checks that the equals signs in parameter default assignments
-                 have or don't have surrounding space depending on
-                 configuration.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#spaces-around-equals'
+# Checks for missing space between code and a comment on the same line.
+Style/SpaceBeforeComment:
   Enabled: false
 
-Style/SpaceAroundOperators:
-  Description: 'Use spaces around operators.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#spaces-operators'
+# Checks that exactly one space is used between a method name and the first
+# argument for method calls without parentheses.
+Style/SpaceBeforeFirstArg:
+  Enabled: false
+
+# No spaces before semicolons.
+Style/SpaceBeforeSemicolon:
   Enabled: false
 
-Style/SpaceBeforeModifierKeyword:
-  Description: 'Put a space before the modifier keyword.'
+# Checks that block braces have or don't have surrounding space.
+# For blocks taking parameters, checks that the left brace has or doesn't
+# have trailing space.
+Style/SpaceInsideBlockBraces:
   Enabled: false
 
+# No spaces after [ or before ].
 Style/SpaceInsideBrackets:
-  Description: 'No spaces after [ or before ].'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-spaces-braces'
   Enabled: false
 
+# Use spaces inside hash literal braces - or don't.
 Style/SpaceInsideHashLiteralBraces:
-  Description: "Use spaces inside hash literal braces - or don't."
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#spaces-operators'
   Enabled: true
 
+# No spaces after ( or before ).
 Style/SpaceInsideParens:
-  Description: 'No spaces after ( or before ).'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-spaces-braces'
   Enabled: false
 
+# No spaces inside range literals.
 Style/SpaceInsideRangeLiteral:
-  Description: 'No spaces inside range literals.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-space-inside-range-literals'
   Enabled: false
 
+# Checks for padding/surrounding spaces inside string interpolation.
+Style/SpaceInsideStringInterpolation:
+  Enabled: false
+
+# Avoid Perl-style global variables.
 Style/SpecialGlobalVars:
-  Description: 'Avoid Perl-style global variables.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-cryptic-perlisms'
   Enabled: false
 
+# Check for the usage of parentheses around stabby lambda arguments.
+Style/StabbyLambdaParentheses:
+  Enabled: false
+
+# Checks if uses of quotes match the configured preference.
 Style/StringLiterals:
-  Description: 'Checks if uses of quotes match the configured preference.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#consistent-string-literals'
   Enabled: false
 
+# Checks if uses of quotes inside expressions in interpolated strings match the
+# configured preference.
 Style/StringLiteralsInInterpolation:
-  Description: >-
-                 Checks if uses of quotes inside expressions in interpolated
-                 strings match the configured preference.
   Enabled: false
 
+# Checks if configured preferred methods are used over non-preferred.
+Style/StringMethods:
+  Enabled: false
+
+# Use %i or %I for arrays of symbols.
+Style/SymbolArray:
+  Enabled: false
+
+# Use symbols as procs instead of blocks when possible.
 Style/SymbolProc:
-  Description: 'Use symbols as procs instead of blocks when possible.'
   Enabled: false
 
+# No hard tabs.
 Style/Tab:
-  Description: 'No hard tabs.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#spaces-indentation'
   Enabled: true
 
+# Checks trailing blank lines and final newline.
 Style/TrailingBlankLines:
-  Description: 'Checks trailing blank lines and final newline.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#newline-eof'
   Enabled: true
 
-Style/TrailingComma:
-  Description: 'Checks for trailing comma in parameter lists and literals.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-trailing-array-commas'
+# Checks for trailing comma in array and hash literals.
+Style/TrailingCommaInLiteral:
   Enabled: false
 
+# Checks for trailing comma in argument lists.
+Style/TrailingCommaInArguments:
+  Enabled: false
+
+# Avoid trailing whitespace.
 Style/TrailingWhitespace:
-  Description: 'Avoid trailing whitespace.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-trailing-whitespace'
   Enabled: false
 
+# Checks for the usage of unneeded trailing underscores at the end of
+# parallel variable assignment.
 Style/TrailingUnderscoreVariable:
-  Description: >-
-                 Checks for the usage of unneeded trailing underscores at the
-                 end of parallel variable assignment.
-  AllowNamedUnderscoreVariables: true
   Enabled: false
 
+# Prefer attr_* methods to trivial readers/writers.
 Style/TrivialAccessors:
-  Description: 'Prefer attr_* methods to trivial readers/writers.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#attr_family'
   Enabled: false
 
+# Do not use unless with else. Rewrite these with the positive case first.
 Style/UnlessElse:
-  Description: >-
-                 Do not use unless with else. Rewrite these with the positive
-                 case first.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-else-with-unless'
   Enabled: false
 
+# Checks for %W when interpolation is not needed.
 Style/UnneededCapitalW:
-  Description: 'Checks for %W when interpolation is not needed.'
   Enabled: false
 
+# TODO: Enable UnneededInterpolation Cop.
+# Checks for strings that are just an interpolated expression.
+Style/UnneededInterpolation:
+  Enabled: false
+
+# Checks for %q/%Q when single quotes or double quotes would do.
 Style/UnneededPercentQ:
-  Description: 'Checks for %q/%Q when single quotes or double quotes would do.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#percent-q'
   Enabled: false
 
+# Don't interpolate global, instance and class variables directly in strings.
 Style/VariableInterpolation:
-  Description: >-
-                 Don't interpolate global, instance and class variables
-                 directly in strings.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#curlies-interpolate'
   Enabled: false
 
+# Use the configured style when naming variables.
 Style/VariableName:
-  Description: 'Use the configured style when naming variables.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#snake-case-symbols-methods-vars'
   Enabled: false
 
+# Use when x then ... for one-line cases.
 Style/WhenThen:
-  Description: 'Use when x then ... for one-line cases.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#one-line-cases'
   Enabled: false
 
+# Checks for redundant do after while or until.
 Style/WhileUntilDo:
-  Description: 'Checks for redundant do after while or until.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-multiline-while-do'
   Enabled: false
 
+# Favor modifier while/until usage when you have a single-line body.
 Style/WhileUntilModifier:
-  Description: >-
-                 Favor modifier while/until usage when you have a
-                 single-line body.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#while-as-a-modifier'
   Enabled: false
 
+# Use %w or %W for arrays of words.
 Style/WordArray:
-  Description: 'Use %w or %W for arrays of words.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#percent-w'
   Enabled: false
 
+# TODO: Enable ZeroLengthPredicate Cop.
+# Use #empty? when testing for objects of length 0.
+Style/ZeroLengthPredicate:
+  Enabled: false
+
+
 #################### Metrics ################################
 
+# A calculated magnitude based on number of assignments,
+# branches, and conditions.
 Metrics/AbcSize:
-  Description: >-
-                 A calculated magnitude based on number of assignments,
-                 branches, and conditions.
   Enabled: true
   Max: 70
 
-Metrics/CyclomaticComplexity:
-  Description: >-
-                 A complexity metric that is strongly correlated to the number
-                 of test cases needed to validate a method.
-  Enabled: true
-  Max: 17
-
-Metrics/PerceivedComplexity:
-  Description: >-
-                 A complexity metric geared towards measuring complexity for a
-                 human reader.
-  Enabled: true
-  Max: 17
-
-Metrics/ParameterLists:
-  Description: 'Avoid parameter lists longer than three or four parameters.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#too-many-params'
-  Enabled: true
-  Max: 8
-
+# Avoid excessive block nesting.
 Metrics/BlockNesting:
-  Description: 'Avoid excessive block nesting'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#three-is-the-number-thou-shalt-count'
   Enabled: true
   Max: 4
 
+# Avoid classes longer than 100 lines of code.
 Metrics/ClassLength:
-  Description: 'Avoid classes longer than 100 lines of code.'
   Enabled: false
 
+# A complexity metric that is strongly correlated to the number
+# of test cases needed to validate a method.
+Metrics/CyclomaticComplexity:
+  Enabled: true
+  Max: 17
+
+# Limit lines to 80 characters.
 Metrics/LineLength:
-  Description: 'Limit lines to 80 characters.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#80-character-limits'
   Enabled: false
 
+# Avoid methods longer than 10 lines of code.
 Metrics/MethodLength:
-  Description: 'Avoid methods longer than 10 lines of code.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#short-methods'
   Enabled: false
 
+# Avoid modules longer than 100 lines of code.
 Metrics/ModuleLength:
-  Description: 'Avoid modules longer than 100 lines of code.'
   Enabled: false
 
+# Avoid parameter lists longer than three or four parameters.
+Metrics/ParameterLists:
+  Enabled: true
+  Max: 8
+
+# A complexity metric geared towards measuring complexity for a human reader.
+Metrics/PerceivedComplexity:
+  Enabled: true
+  Max: 17
+
+
 #################### Lint ################################
-### Warnings
 
+# Checks for ambiguous operators in the first argument of a method invocation
+# without parentheses.
 Lint/AmbiguousOperator:
-  Description: >-
-                 Checks for ambiguous operators in the first argument of a
-                 method invocation without parentheses.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#parens-as-args'
   Enabled: false
 
+# Checks for ambiguous regexp literals in the first argument of a method
+# invocation without parentheses.
 Lint/AmbiguousRegexpLiteral:
-  Description: >-
-                 Checks for ambiguous regexp literals in the first argument of
-                 a method invocation without parenthesis.
   Enabled: false
 
+# Don't use assignment in conditions.
 Lint/AssignmentInCondition:
-  Description: "Don't use assignment in conditions."
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#safe-assignment-in-condition'
   Enabled: false
 
+# Align block ends correctly.
 Lint/BlockAlignment:
-  Description: 'Align block ends correctly.'
   Enabled: false
 
+# Default values in optional keyword arguments and optional ordinal arguments
+# should not refer back to the name of the argument.
+Lint/CircularArgumentReference:
+  Enabled: false
+
+# Checks for condition placed in a confusing position relative to the keyword.
 Lint/ConditionPosition:
-  Description: >-
-                 Checks for condition placed in a confusing position relative to
-                 the keyword.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#same-line-condition'
   Enabled: false
 
+# Check for debugger calls.
 Lint/Debugger:
-  Description: 'Check for debugger calls.'
   Enabled: false
 
+# Align ends corresponding to defs correctly.
 Lint/DefEndAlignment:
-  Description: 'Align ends corresponding to defs correctly.'
   Enabled: false
 
+# Check for deprecated class method calls.
 Lint/DeprecatedClassMethods:
-  Description: 'Check for deprecated class method calls.'
   Enabled: false
 
+# Check for duplicate method definitions.
+Lint/DuplicateMethods:
+  Enabled: false
+
+# Check for duplicate keys in hash literals.
+Lint/DuplicatedKey:
+  Enabled: false
+
+# Check for immutable argument given to each_with_object.
+Lint/EachWithObjectArgument:
+  Enabled: false
+
+# Check for odd code arrangement in an else block.
 Lint/ElseLayout:
-  Description: 'Check for odd code arrangement in an else block.'
   Enabled: false
 
+# Checks for empty ensure block.
 Lint/EmptyEnsure:
-  Description: 'Checks for empty ensure block.'
   Enabled: false
 
+# Checks for empty string interpolation.
 Lint/EmptyInterpolation:
-  Description: 'Checks for empty string interpolation.'
   Enabled: false
 
+# Align ends correctly.
 Lint/EndAlignment:
-  Description: 'Align ends correctly.'
   Enabled: false
 
+# END blocks should not be placed inside method definitions.
 Lint/EndInMethod:
-  Description: 'END blocks should not be placed inside method definitions.'
   Enabled: false
 
+# Do not use return in an ensure block.
 Lint/EnsureReturn:
-  Description: 'Do not use return in an ensure block.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-return-ensure'
   Enabled: false
 
+# The use of eval represents a serious security risk.
 Lint/Eval:
-  Description: 'The use of eval represents a serious security risk.'
   Enabled: false
 
+# Catches floating-point literals too large or small for Ruby to represent.
+Lint/FloatOutOfRange:
+  Enabled: false
+
+# The number of parameters to format/sprint must match the fields.
+Lint/FormatParameterMismatch:
+  Enabled: false
+
+# Don't suppress exception.
 Lint/HandleExceptions:
-  Description: "Don't suppress exception."
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#dont-hide-exceptions'
   Enabled: false
 
+# TODO: Enable ImplicitStringConcatenation Cop.
+# Checks for adjacent string literals on the same line, which could better be
+# represented as a single string literal.
+Lint/ImplicitStringConcatenation:
+  Enabled: false
+
+# TODO: Enable IneffectiveAccessModifier Cop.
+# Checks for attempts to use `private` or `protected` to set the visibility
+# of a class method, which does not work.
+Lint/IneffectiveAccessModifier:
+  Enabled: false
+
+# Checks for invalid character literals with a non-escaped whitespace
+# character.
 Lint/InvalidCharacterLiteral:
-  Description: >-
-                 Checks for invalid character literals with a non-escaped
-                 whitespace character.
   Enabled: false
 
+# Checks of literals used in conditions.
 Lint/LiteralInCondition:
-  Description: 'Checks of literals used in conditions.'
   Enabled: false
 
+# Checks for literals used in interpolation.
 Lint/LiteralInInterpolation:
-  Description: 'Checks for literals used in interpolation.'
   Enabled: false
 
+# Use Kernel#loop with break rather than begin/end/until or begin/end/while
+# for post-loop tests.
 Lint/Loop:
-  Description: >-
-                 Use Kernel#loop with break rather than begin/end/until or
-                 begin/end/while for post-loop tests.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#loop-with-break'
   Enabled: false
 
+# Do not use nested method definitions.
+Lint/NestedMethodDefinition:
+  Enabled: false
+
+# Do not omit the accumulator when calling `next` in a `reduce`/`inject` block.
+Lint/NextWithoutAccumulator:
+  Enabled: false
+
+# Checks for method calls with a space before the opening parenthesis.
 Lint/ParenthesesAsGroupedExpression:
-  Description: >-
-                 Checks for method calls with a space before the opening
-                 parenthesis.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#parens-no-spaces'
   Enabled: true
 
+# Checks for `rand(1)` calls. Such calls always return `0` and most likely
+# a mistake.
+Lint/RandOne:
+  Enabled: false
+
+# Use parentheses in the method call to avoid confusion about precedence.
 Lint/RequireParentheses:
-  Description: >-
-                 Use parentheses in the method call to avoid confusion
-                 about precedence.
   Enabled: false
 
+# Avoid rescuing the Exception class.
 Lint/RescueException:
-  Description: 'Avoid rescuing the Exception class.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-blind-rescues'
   Enabled: true
 
+# Do not use the same name as outer local variable for block arguments
+# or block local variables.
 Lint/ShadowingOuterLocalVariable:
-  Description: >-
-                 Do not use the same name as outer local variable
-                 for block arguments or block local variables.
-  Enabled: false
-
-Lint/SpaceBeforeFirstArg:
-  Description: >-
-                 Put a space between a method name and the first argument
-                 in a method call without parentheses.
   Enabled: false
 
+# 'Checks for Object#to_s usage in string interpolation.
 Lint/StringConversionInInterpolation:
-  Description: 'Checks for Object#to_s usage in string interpolation.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#no-to-s'
   Enabled: false
 
+# Do not use prefix `_` for a variable that is used.
 Lint/UnderscorePrefixedVariableName:
-  Description: 'Do not use prefix `_` for a variable that is used.'
   Enabled: true
 
+# Checks for rubocop:disable comments that can be removed.
+# Note: this cop is not disabled when disabling all cops.
+# It must be explicitly disabled.
+Lint/UnneededDisable:
+  Enabled: false
+
+# Checks for unused block arguments.
 Lint/UnusedBlockArgument:
-  Description: 'Checks for unused block arguments.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#underscore-unused-vars'
   Enabled: false
 
+# Checks for unused method arguments.
 Lint/UnusedMethodArgument:
-  Description: 'Checks for unused method arguments.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#underscore-unused-vars'
   Enabled: false
 
+# Unreachable code.
 Lint/UnreachableCode:
-  Description: 'Unreachable code.'
   Enabled: false
 
+# Checks for useless access modifiers.
 Lint/UselessAccessModifier:
-  Description: 'Checks for useless access modifiers.'
   Enabled: false
 
+# Checks for useless assignment to a local variable.
 Lint/UselessAssignment:
-  Description: 'Checks for useless assignment to a local variable.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#underscore-unused-vars'
   Enabled: true
 
+# Checks for comparison of something with itself.
 Lint/UselessComparison:
-  Description: 'Checks for comparison of something with itself.'
   Enabled: false
 
+# Checks for useless `else` in `begin..end` without `rescue`.
 Lint/UselessElseWithoutRescue:
-  Description: 'Checks for useless `else` in `begin..end` without `rescue`.'
   Enabled: false
 
+# Checks for useless setter call to a local variable.
 Lint/UselessSetterCall:
-  Description: 'Checks for useless setter call to a local variable.'
   Enabled: false
 
+# Possible use of operator/literal/variable in void context.
 Lint/Void:
-  Description: 'Possible use of operator/literal/variable in void context.'
   Enabled: false
 
+
+##################### Performance ############################
+
+# TODO: Enable Casecmp Cop.
+# Use `casecmp` rather than `downcase ==`.
+Performance/Casecmp:
+  Enabled: false
+
+# TODO: Enable DoubleStartEndWith Cop.
+# Use `str.{start,end}_with?(x, ..., y, ...)` instead of
+# `str.{start,end}_with?(x, ...) || str.{start,end}_with?(y, ...)`.
+Performance/DoubleStartEndWith:
+  Enabled: false
+
+# TODO: Enable EndWith Cop.
+# Use `end_with?` instead of a regex match anchored to the end of a string.
+Performance/EndWith:
+  Enabled: false
+
+# TODO: Enable LstripRstrip Cop.
+# Use `strip` instead of `lstrip.rstrip`.
+Performance/LstripRstrip:
+  Enabled: false
+
+# TODO: Enable RangeInclude Cop.
+# Use `Range#cover?` instead of `Range#include?`.
+Performance/RangeInclude:
+  Enabled: false
+
+# TODO: Enable RedundantBlockCall Cop.
+# Use `yield` instead of `block.call`.
+Performance/RedundantBlockCall:
+  Enabled: false
+
+# TODO: Enable RedundantMatch Cop.
+# Use `=~` instead of `String#match` or `Regexp#match` in a context where the
+# returned `MatchData` is not needed.
+Performance/RedundantMatch:
+  Enabled: false
+
+# TODO: Enable RedundantMerge Cop.
+# Use `Hash#[]=`, rather than `Hash#merge!` with a single key-value pair.
+Performance/RedundantMerge:
+  # Max number of key-value pairs to consider an offense
+  MaxKeyValuePairs: 2
+  Enabled: false
+
+# TODO: Enable RedundantSortBy Cop.
+# Use `sort` instead of `sort_by { |x| x }`.
+Performance/RedundantSortBy:
+  Enabled: false
+
+# TODO: Enable StartWith Cop.
+# Use `start_with?` instead of a regex match anchored to the beginning of a
+# string.
+Performance/StartWith:
+  Enabled: false
+# Use `tr` instead of `gsub` when you are replacing the same number of
+# characters. Use `delete` instead of `gsub` when you are deleting
+# characters.
+Performance/StringReplacement:
+  Enabled: false
+
+# TODO: Enable TimesMap Cop.
+# Checks for `.times.map` calls.
+Performance/TimesMap:
+  Enabled: false
+
+
 ##################### Rails ##################################
 
+# Enables Rails cops.
+Rails:
+  Enabled: true
+
+# Enforces consistent use of action filter methods.
 Rails/ActionFilter:
-  Description: 'Enforces consistent use of action filter methods.'
   Enabled: true
+  EnforcedStyle: action
 
+# Checks the correct usage of date aware methods, such as `Date.today`,
+# `Date.current`, etc.
 Rails/Date:
-  Description: >-
-                  Checks the correct usage of date aware methods,
-                  such as Date.today, Date.current etc.
   Enabled: false
 
-Rails/DefaultScope:
-  Description: 'Checks if the argument passed to default_scope is a block.'
+# Prefer delegate method for delegations.
+Rails/Delegate:
   Enabled: false
 
-Rails/Delegate:
-  Description: 'Prefer delegate method for delegations.'
+# Prefer `find_by` over `where.first`.
+Rails/FindBy:
+  Enabled: false
+
+# Prefer `all.find_each` over `all.find`.
+Rails/FindEach:
   Enabled: false
 
+# Prefer has_many :through to has_and_belongs_to_many.
 Rails/HasAndBelongsToMany:
-  Description: 'Prefer has_many :through to has_and_belongs_to_many.'
   Enabled: true
 
+# Checks for calls to puts, print, etc.
 Rails/Output:
-  Description: 'Checks for calls to puts, print, etc.'
   Enabled: true
 
+# Checks for incorrect grammar when using methods like `3.day.ago`.
+Rails/PluralizationGrammar:
+  Enabled: false
+
+# Checks for `read_attribute(:attr)` and `write_attribute(:attr, val)`.
 Rails/ReadWriteAttribute:
-  Description: >-
-                 Checks for read_attribute(:attr) and
-                 write_attribute(:attr, val).
   Enabled: false
 
+# Checks the arguments of ActiveRecord scopes.
 Rails/ScopeArgs:
-  Description: 'Checks the arguments of ActiveRecord scopes.'
   Enabled: false
 
+# Checks the correct usage of time zone aware methods.
+# http://danilenko.org/2012/7/6/rails_timezones
 Rails/TimeZone:
-  Description: 'Checks the correct usage of time zone aware methods.'
-  StyleGuide: 'https://github.com/bbatsov/rails-style-guide#time'
-  Reference: 'http://danilenko.org/2012/7/6/rails_timezones'
   Enabled: false
 
+# Use validates :attribute, hash of validations.
 Rails/Validation:
-  Description: 'Use validates :attribute, hash of validations.'
   Enabled: false
-
-
-# Exclude some of GitLab files
-#
-#
-AllCops:
-  RunRailsCops: true
-  Exclude:
-    - 'vendor/**/*'
-    - 'db/**/*'
-    - 'tmp/**/*'
-    - 'bin/**/*'
-    - 'lib/backup/**/*'
-    - 'lib/ci/backup/**/*'
-    - 'lib/tasks/**/*'
-    - 'lib/ci/migrate/**/*'
-    - 'lib/email_validator.rb'
-    - 'lib/gitlab/upgrader.rb'
-    - 'lib/gitlab/seeder.rb'

CHANGELOG

 Please view this file on the master branch, on stable branches it's out of date.
 
 v 8.6.0 (unreleased)
+  - Add ability to move issue to another project
+  - Fix bug where wrong commit ID was being used in a merge request diff to show old image (Stan Hu)
+  - Make HTTP(s) label consistent on clone bar (Stan Hu)
   - Add confidential issues
   - Bump gitlab_git to 9.0.3 (Stan Hu)
+  - Fix diff image view modes (2-up, swipe, onion skin) not working (Stan Hu)
   - Support Golang subpackage fetching (Stan Hu)
   - Bump Capybara gem to 2.6.2 (Stan Hu)
   - New branch button appears on issues where applicable

GITLAB_WORKHORSE_VERSION

-0.6.5
+0.7.1

Gemfile

@@ -222,6 +222,8 @@ gem 'net-ssh',            '~> 3.0.1'
 # Sentry integration
 gem 'sentry-raven', '~> 0.15'
 
+gem 'premailer-rails', '~> 1.9.0'
+
 # Metrics
 group :metrics do
   gem 'allocations', '~> 1.0', require: false, platform: :mri
@@ -285,7 +287,7 @@ group :development, :test do
   gem 'spring-commands-spinach',  '~> 1.0.0'
   gem 'spring-commands-teaspoon', '~> 0.0.2'
 
-  gem 'rubocop', '~> 0.35.0', require: false
+  gem 'rubocop', '~> 0.38.0', require: false
   gem 'scss_lint', '~> 0.47.0', require: false
   gem 'coveralls',  '~> 0.8.2', require: false
   gem 'simplecov', '~> 0.10.0', require: false

Gemfile.lock

@@ -61,9 +61,7 @@ GEM
       faraday_middleware-multi_json (~> 0.0)
       oauth2 (~> 1.0)
     asciidoctor (1.5.3)
-    ast (2.1.0)
-    astrolabe (1.3.1)
-      parser (~> 2.2)
+    ast (2.2.0)
     attr_encrypted (1.3.4)
       encryptor (>= 1.3.0)
     attr_required (1.0.0)
@@ -150,6 +148,8 @@ GEM
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
     creole (0.5.0)
+    css_parser (1.3.7)
+      addressable
     d3_rails (3.5.11)
       railties (>= 3.1.0)
     daemons (1.2.3)
@@ -423,6 +423,7 @@ GEM
       haml (~> 4.0.0)
       nokogiri (~> 1.6.0)
       ruby_parser (~> 3.5)
+    htmlentities (4.3.4)
     http-cookie (1.0.2)
       domain_name (~> 0.5)
     http_parser.rb (0.5.3)
@@ -554,8 +555,8 @@ GEM
     orm_adapter (0.5.0)
     paranoia (2.1.4)
       activerecord (~> 4.0)
-    parser (2.2.3.0)
-      ast (>= 1.1, < 3.0)
+    parser (2.3.0.6)
+      ast (~> 2.2)
     pg (0.18.4)
     poltergeist (1.9.0)
       capybara (~> 2.1)
@@ -564,6 +565,12 @@ GEM
       websocket-driver (>= 0.2.0)
     posix-spawn (0.3.11)
     powerpack (0.1.1)
+    premailer (1.8.6)
+      css_parser (>= 1.3.6)
+      htmlentities (>= 4.0.0)
+    premailer-rails (1.9.0)
+      actionmailer (>= 3, < 5)
+      premailer (~> 1.7, >= 1.7.9)
     pry (0.10.3)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
@@ -615,7 +622,7 @@ GEM
       activesupport (= 4.2.5.2)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rainbow (2.0.0)
+    rainbow (2.1.0)
     raindrops (0.15.0)
     rake (10.5.0)
     raphael-rails (2.1.2)
@@ -687,13 +694,12 @@ GEM
     rspec-retry (0.4.5)
       rspec-core
     rspec-support (3.3.0)
-    rubocop (0.35.1)
-      astrolabe (~> 1.3)
-      parser (>= 2.2.3.0, < 3.0)
+    rubocop (0.38.0)
+      parser (>= 2.3.0.6, < 3.0)
       powerpack (~> 0.1)
       rainbow (>= 1.99.1, < 3.0)
       ruby-progressbar (~> 1.7)
-      tins (<= 1.6.0)
+      unicode-display_width (~> 1.0, >= 1.0.1)
     ruby-fogbugz (0.2.1)
       crack (~> 0.4)
     ruby-progressbar (1.7.5)
@@ -843,6 +849,7 @@ GEM
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.1)
+    unicode-display_width (1.0.2)
     unicorn (4.9.0)
       kgio (~> 2.6)
       rack
@@ -992,6 +999,7 @@ DEPENDENCIES
   paranoia (~> 2.0)
   pg (~> 0.18.2)
   poltergeist (~> 1.9.0)
+  premailer-rails (~> 1.9.0)
   pry-rails
   quiet_assets (~> 1.0.2)
   rack-attack (~> 4.3.1)
@@ -1013,7 +1021,7 @@ DEPENDENCIES
   rqrcode-rails3 (~> 0.1.7)
   rspec-rails (~> 3.3.0)
   rspec-retry
-  rubocop (~> 0.35.0)
+  rubocop (~> 0.38.0)
   ruby-fogbugz (~> 0.2.1)
   sanitize (~> 2.0)
   sass-rails (~> 5.0.0)

app/assets/javascripts/application.js.coffee

@@ -7,6 +7,7 @@
 #= require jquery
 #= require jquery-ui/autocomplete
 #= require jquery-ui/datepicker
+#= require jquery-ui/draggable
 #= require jquery-ui/effect-highlight
 #= require jquery-ui/sortable
 #= require jquery_ujs

app/assets/javascripts/aside.js.coffee

@@ -5,7 +5,6 @@ class @Aside
       e.preventDefault()
       btn = $(e.currentTarget)
       icon = btn.find('i')
-      console.log('1')
 
       if icon.hasClass('fa-angle-left')
         btn.parent().find('section').hide()

app/assets/javascripts/gl_dropdown.js.coffee

@@ -167,7 +167,11 @@ class GitLabDropdown
 
   hidden: =>
     if @options.filterable
-      @dropdown.find(".dropdown-input-field").blur().val("")
+      @dropdown
+        .find(".dropdown-input-field")
+        .blur()
+        .val("")
+        .trigger("keyup")
 
     if @dropdown.find(".dropdown-toggle-page").length
       $('.dropdown-menu', @dropdown).removeClass PAGE_TWO_CLASS

app/assets/javascripts/issuable_form.js.coffee

 class @IssuableForm
+  issueMoveConfirmMsg: 'Are you sure you want to move this issue to another project?'
   wipRegex: /^\s*(\[WIP\]\s*|WIP:\s*|WIP\s+)+\s*/i
+
   constructor: (@form) ->
     GitLab.GfmAutoComplete.setup()
     new UsersSelect()
@@ -7,12 +9,13 @@ class @IssuableForm
 
     @titleField       = @form.find("input[name*='[title]']")
     @descriptionField = @form.find("textarea[name*='[description]']")
+    @issueMoveField   = @form.find("#move_to_project_id")
 
     return unless @titleField.length && @descriptionField.length
 
     @initAutosave()
 
-    @form.on "submit", @resetAutosave
+    @form.on "submit", @handleSubmit
     @form.on "click", ".btn-cancel", @resetAutosave
 
     @initWip()
@@ -30,6 +33,12 @@ class @IssuableForm
       "description"
     ]
 
+  handleSubmit: =>
+    if (parseInt(@issueMoveField?.val()) ? 0) > 0
+      return false unless confirm(@issueMoveConfirmMsg)
+
+    @resetAutosave()
+
   resetAutosave: =>
     @titleField.data("autosave").reset()
     @descriptionField.data("autosave").reset()

app/assets/javascripts/merge_request_tabs.js.coffee

@@ -3,6 +3,8 @@
 # Handles persisting and restoring the current tab selection and lazily-loading
 # content on the MergeRequests#show page.
 #
+#= require jquery.cookie
+#
 # ### Example Markup
 #
 #   <ul class="nav-links merge-request-tabs">
@@ -68,11 +70,15 @@ class @MergeRequestTabs
 
     if action == 'commits'
       @loadCommits($target.attr('href'))
+      @expandView()
     else if action == 'diffs'
       @loadDiff($target.attr('href'))
       @shrinkView()
     else if action == 'builds'
       @loadBuilds($target.attr('href'))
+      @expandView()
+    else
+      @expandView()
 
     @setCurrentAction(action)
 
@@ -189,11 +195,24 @@ class @MergeRequestTabs
     $('.container-fluid').removeClass('container-limited')
 
   shrinkView: ->
-    $gutterIcon = $('.js-sidebar-toggle i')
+    $gutterIcon = $('.js-sidebar-toggle i:visible')
 
     # Wait until listeners are set
     setTimeout( ->
-      # Only when sidebar is collapsed
+      # Only when sidebar is expanded
       if $gutterIcon.is('.fa-angle-double-right')
-        $gutterIcon.closest('a').trigger('click',[true])
+        $gutterIcon.closest('a').trigger('click', [true])
+    , 0)
+
+  # Expand the issuable sidebar unless the user explicitly collapsed it
+  expandView: ->
+    return if $.cookie('collapsed_gutter') == 'true'
+
+    $gutterIcon = $('.js-sidebar-toggle i:visible')
+
+    # Wait until listeners are set
+    setTimeout( ->
+      # Only when sidebar is collapsed
+      if $gutterIcon.is('.fa-angle-double-left')
+        $gutterIcon.closest('a').trigger('click', [true])
     , 0)

app/assets/javascripts/notes.js.coffee

@@ -361,14 +361,12 @@ class @Notes
   showEditForm: (e) ->
     e.preventDefault()
     note = $(this).closest(".note")
-    note.find(".note-body > .note-text").hide()
-    note.find(".note-header").hide()
+    note.addClass "is-editting"
     form = note.find(".note-edit-form")
     isNewForm = form.is(':not(.gfm-form)')
     if isNewForm
       form.addClass('gfm-form')
     form.addClass('current-note-edit-form')
-    form.show()
 
     # Show the attachment delete link
     note.find(".js-note-attachment-delete").show()
@@ -402,11 +400,9 @@ class @Notes
   cancelEdit: (e) ->
     e.preventDefault()
     note = $(this).closest(".note")
-    note.find(".note-body > .note-text").show()
-    note.find(".note-header").show()
+    note.removeClass "is-editting"
     note.find(".current-note-edit-form")
       .removeClass("current-note-edit-form")
-      .hide()
 
   ###
   Called in response to deleting a note of any kind.

app/assets/javascripts/project.js.coffee

@@ -11,7 +11,6 @@ class @Project
       $(@).toggleClass('active')
 
       url = $("#project_clone").val()
-      console.log("url",url)
 
       # Update the input field
       $('#project_clone').val(url)

app/assets/stylesheets/framework/avatar.scss

@@ -16,7 +16,7 @@
   }
 
   &.group-avatar, &.project-avatar, &.avatar-tile {
-    @include border-radius(0px);
+    @include border-radius(0);
   }
 
   &.s16 { width: 16px; height: 16px; margin-right: 6px; }

app/assets/stylesheets/framework/selects.scss

@@ -41,7 +41,7 @@
 }
 
 .select2-drop {
-  @include box-shadow(rgba(76, 86, 103, 0.247059) 0px 0px 1px 0px, rgba(31, 37, 50, 0.317647) 0px 2px 18px 0px);
+  @include box-shadow(rgba(76, 86, 103, 0.247059) 0 0 1px 0, rgba(31, 37, 50, 0.317647) 0 2px 18px 0);
   @include border-radius ($border-radius-default);
   border: none;
 }

app/assets/stylesheets/notify.scss

+img {
+  max-width: 100%;
+  height: auto;
+}
+p.details {
+  font-style:italic;
+  color:#777
+}
+.footer p {
+  font-size:small;
+  color:#777
+}
+pre.commit-message {
+  white-space: pre-wrap;
+}
+.file-stats a {
+  text-decoration: none;
+}
+.file-stats .new-file {
+  color: #090;
+}
+.file-stats .deleted-file {
+  color: #B00;
+}

app/assets/stylesheets/pages/note_form.scss

@@ -26,7 +26,7 @@
   display: none;
 }
 
-.new_note, .edit_note {
+.new_note, .note-edit-form {
   .note-form-actions {
     margin-top: $gl-padding;
   }

app/assets/stylesheets/pages/notes.scss

@@ -100,6 +100,18 @@ ul.notes {
     display: block;
     position: relative;
 
+    &.is-editting {
+      .note-header,
+      .note-text,
+      .edited-text {
+        display: none;
+      }
+
+      .note-edit-form {
+        display: block;
+      }
+    }
+
     .note-body {
       overflow: auto;
 

app/assets/stylesheets/pages/projects.scss

@@ -37,7 +37,7 @@
       .dropdown-menu {
         left: auto;
         width: auto;
-        right: 0px;
+        right: 0;
         max-width: 240px;
       }
     }

app/controllers/admin/groups_controller.rb

@@ -5,12 +5,12 @@ class Admin::GroupsController < Admin::ApplicationController
     @groups = Group.all
     @groups = @groups.sort(@sort = params[:sort])
     @groups = @groups.search(params[:name]) if params[:name].present?
-    @groups = @groups.page(params[:page]).per(PER_PAGE)
+    @groups = @groups.page(params[:page])
   end
 
   def show
-    @members = @group.members.order("access_level DESC").page(params[:members_page]).per(PER_PAGE)
-    @projects = @group.projects.page(params[:projects_page]).per(PER_PAGE)
+    @members = @group.members.order("access_level DESC").page(params[:members_page])
+    @projects = @group.projects.page(params[:projects_page])
   end
 
   def new

app/controllers/admin/labels_controller.rb

@@ -2,7 +2,7 @@ class Admin::LabelsController < Admin::ApplicationController
   before_action :set_label, only: [:show, :edit, :update, :destroy]
 
   def index
-    @labels = Label.templates.page(params[:page]).per(PER_PAGE)
+    @labels = Label.templates.page(params[:page])
   end
 
   def show

app/controllers/admin/projects_controller.rb

@@ -12,15 +12,15 @@ class Admin::ProjectsController < Admin::ApplicationController
     @projects = @projects.non_archived unless params[:with_archived].present?
     @projects = @projects.search(params[:name]) if params[:name].present?
     @projects = @projects.sort(@sort = params[:sort])
-    @projects = @projects.includes(:namespace).order("namespaces.path, projects.name ASC").page(params[:page]).per(PER_PAGE)
+    @projects = @projects.includes(:namespace).order("namespaces.path, projects.name ASC").page(params[:page])
   end
 
   def show
     if @group
-      @group_members = @group.members.order("access_level DESC").page(params[:group_members_page]).per(PER_PAGE)
+      @group_members = @group.members.order("access_level DESC").page(params[:group_members_page])
     end
 
-    @project_members = @project.project_members.page(params[:project_members_page]).per(PER_PAGE)
+    @project_members = @project.project_members.page(params[:project_members_page])
   end
 
   def transfer

app/controllers/application_controller.rb

@@ -6,8 +6,6 @@ class ApplicationController < ActionController::Base
   include GitlabRoutingHelper
   include PageLayoutHelper
 
-  PER_PAGE = 20
-
   before_action :authenticate_user_from_token!
   before_action :authenticate_user!
   before_action :validate_user_service_ticket!

app/controllers/autocomplete_controller.rb

@@ -7,7 +7,7 @@ class AutocompleteController < ApplicationController
     @users = @users.search(params[:search]) if params[:search].present?
     @users = @users.active
     @users = @users.reorder(:name)
-    @users = @users.page(params[:page]).per(PER_PAGE)
+    @users = @users.page(params[:page])
 
     if params[:search].blank?
       # Include current user if available to filter by "Me"

app/controllers/concerns/global_milestones.rb

@@ -6,7 +6,7 @@ module GlobalMilestones
     @milestones = MilestonesFinder.new.execute(@projects, params)
     @milestones = GlobalMilestone.build_collection(@milestones)
     @milestones = @milestones.sort_by { |x| x.due_date.nil? ? epoch : x.due_date }
-    @milestones = Kaminari.paginate_array(@milestones).page(params[:page]).per(ApplicationController::PER_PAGE)
+    @milestones = Kaminari.paginate_array(@milestones).page(params[:page])
   end
 
   def milestone

app/controllers/concerns/issues_action.rb

@@ -3,7 +3,7 @@ module IssuesAction
 
   def issues
     @issues = get_issues_collection.non_archived
-    @issues = @issues.page(params[:page]).per(ApplicationController::PER_PAGE)
+    @issues = @issues.page(params[:page])
     @issues = @issues.preload(:author, :project)
 
     @label = @issuable_finder.labels.first

app/controllers/concerns/merge_requests_action.rb

@@ -3,7 +3,7 @@ module MergeRequestsAction
 
   def merge_requests
     @merge_requests = get_merge_requests_collection.non_archived
-    @merge_requests = @merge_requests.page(params[:page]).per(ApplicationController::PER_PAGE)
+    @merge_requests = @merge_requests.page(params[:page])
     @merge_requests = @merge_requests.preload(:author, :target_project)
 
     @label = @issuable_finder.labels.first

app/controllers/dashboard/groups_controller.rb

 class Dashboard::GroupsController < Dashboard::ApplicationController
   def index
-    @group_members = current_user.group_members.page(params[:page]).per(PER_PAGE)
+    @group_members = current_user.group_members.page(params[:page])
   end
 end

app/controllers/dashboard/projects_controller.rb

@@ -8,7 +8,7 @@ class Dashboard::ProjectsController < Dashboard::ApplicationController
     @projects = filter_projects(@projects)
     @projects = @projects.includes(:namespace)
     @projects = @projects.sort(@sort = params[:sort])
-    @projects = @projects.page(params[:page]).per(PER_PAGE)
+    @projects = @projects.page(params[:page])
 
     @last_push = current_user.recent_push
 
@@ -32,7 +32,7 @@ class Dashboard::ProjectsController < Dashboard::ApplicationController
     @projects = filter_projects(@projects)
     @projects = @projects.includes(:namespace, :forked_from_project, :tags)
     @projects = @projects.sort(@sort = params[:sort])
-    @projects = @projects.page(params[:page]).per(PER_PAGE)
+    @projects = @projects.page(params[:page])
 
     @last_push = current_user.recent_push
     @groups = []

app/controllers/dashboard/snippets_controller.rb

@@ -6,6 +6,6 @@ class Dashboard::SnippetsController < Dashboard::ApplicationController
       user: current_user,
       scope: params[:scope]
     )
-    @snippets = @snippets.page(params[:page]).per(PER_PAGE)
+    @snippets = @snippets.page(params[:page])
   end
 end

app/controllers/dashboard/todos_controller.rb

@@ -2,7 +2,7 @@ class Dashboard::TodosController < Dashboard::ApplicationController
   before_action :find_todos, only: [:index, :destroy, :destroy_all]
 
   def index
-    @todos = @todos.page(params[:page]).per(PER_PAGE)
+    @todos = @todos.page(params[:page])
   end
 
   def destroy

app/controllers/explore/groups_controller.rb

@@ -3,6 +3,6 @@ class Explore::GroupsController < Explore::ApplicationController
     @groups = Group.order_id_desc
     @groups = @groups.search(params[:search]) if params[:search].present?
     @groups = @groups.sort(@sort = params[:sort])
-    @groups = @groups.page(params[:page]).per(PER_PAGE)
+    @groups = @groups.page(params[:page])
   end
 end

app/controllers/explore/projects_controller.rb

@@ -8,7 +8,7 @@ class Explore::ProjectsController < Explore::ApplicationController
     @projects = @projects.where(visibility_level: params[:visibility_level]) if params[:visibility_level].present?
     @projects = filter_projects(@projects)
     @projects = @projects.sort(@sort = params[:sort])
-    @projects = @projects.includes(:namespace).page(params[:page]).per(PER_PAGE)
+    @projects = @projects.includes(:namespace).page(params[:page])
 
     respond_to do |format|
       format.html
@@ -23,7 +23,7 @@ class Explore::ProjectsController < Explore::ApplicationController
   def trending
     @projects = TrendingProjectsFinder.new.execute(current_user)
     @projects = filter_projects(@projects)
-    @projects = @projects.page(params[:page]).per(PER_PAGE)
+    @projects = @projects.page(params[:page])
 
     respond_to do |format|
       format.html
@@ -39,7 +39,7 @@ class Explore::ProjectsController < Explore::ApplicationController
     @projects = ProjectsFinder.new.execute(current_user)
     @projects = filter_projects(@projects)
     @projects = @projects.reorder('star_count DESC')
-    @projects = @projects.page(params[:page]).per(PER_PAGE)
+    @projects = @projects.page(params[:page])
 
     respond_to do |format|
       format.html

app/controllers/explore/snippets_controller.rb

 class Explore::SnippetsController < Explore::ApplicationController
   def index
     @snippets = SnippetsFinder.new.execute(current_user, filter: :all)
-    @snippets = @snippets.page(params[:page]).per(PER_PAGE)
+    @snippets = @snippets.page(params[:page])
   end
 end

app/controllers/groups_controller.rb

@@ -44,7 +44,7 @@ class GroupsController < Groups::ApplicationController
     @projects = @projects.includes(:namespace)
     @projects = filter_projects(@projects)
     @projects = @projects.sort(@sort = params[:sort])
-    @projects = @projects.page(params[:page]).per(PER_PAGE) if params[:filter_projects].blank?
+    @projects = @projects.page(params[:page]) if params[:filter_projects].blank?
 
     @shared_projects = @group.shared_projects
 

app/controllers/profiles_controller.rb

@@ -34,8 +34,7 @@ class ProfilesController < Profiles::ApplicationController
   def audit_log
     @events = AuditEvent.where(entity_type: "User", entity_id: current_user.id).
       order("created_at DESC").
-      page(params[:page]).
-      per(PER_PAGE)
+      page(params[:page])
   end
 
   def update_username

app/controllers/projects/branches_controller.rb

@@ -8,7 +8,7 @@ class Projects::BranchesController < Projects::ApplicationController
   def index
     @sort = params[:sort] || 'name'
     @branches = @repository.branches_sorted_by(@sort)
-    @branches = Kaminari.paginate_array(@branches).page(params[:page]).per(PER_PAGE)
+    @branches = Kaminari.paginate_array(@branches).page(params[:page])
 
     @max_commits = @branches.reduce(0) do |memo, branch|
       diverging_commit_counts = repository.diverging_commit_counts(branch)

app/controllers/projects/forks_controller.rb

@@ -15,7 +15,7 @@ class Projects::ForksController < Projects::ApplicationController
 
     @sort  = params[:sort] || 'id_desc'
     @forks = @forks.search(params[:filter_projects]) if params[:filter_projects].present?
-    @forks = @forks.order_by(@sort).page(params[:page]).per(PER_PAGE)
+    @forks = @forks.order_by(@sort).page(params[:page])
 
     respond_to do |format|
       format.html

app/controllers/projects/issues_controller.rb

@@ -34,7 +34,7 @@ class Projects::IssuesController < Projects::ApplicationController
       end
     end
 
-    @issues = @issues.page(params[:page]).per(PER_PAGE)
+    @issues = @issues.page(params[:page])
     @label = @project.labels.find_by(title: params[:label_name])
 
     respond_to do |format|
@@ -91,6 +91,12 @@ class Projects::IssuesController < Projects::ApplicationController
   def update
     @issue = Issues::UpdateService.new(project, current_user, issue_params).execute(issue)
 
+    if params[:move_to_project_id].to_i > 0
+      new_project = Project.find(params[:move_to_project_id])
+      move_service = Issues::MoveService.new(project, current_user)
+      @issue = move_service.execute(@issue, new_project)
+    end
+
     respond_to do |format|
       format.js
       format.html do

app/controllers/projects/labels_controller.rb

@@ -11,7 +11,7 @@ class Projects::LabelsController < Projects::ApplicationController
   respond_to :js, :html
 
   def index
-    @labels = @project.labels.page(params[:page]).per(PER_PAGE)
+    @labels = @project.labels.page(params[:page])
 
     respond_to do |format|
       format.html

app/controllers/projects/merge_requests_controller.rb

@@ -35,7 +35,7 @@ class Projects::MergeRequestsController < Projects::ApplicationController
       end
     end
 
-    @merge_requests = @merge_requests.page(params[:page]).per(PER_PAGE)
+    @merge_requests = @merge_requests.page(params[:page])
     @merge_requests = @merge_requests.preload(:target_project)
 
     @label = @project.labels.find_by(title: params[:label_name])

app/controllers/projects/milestones_controller.rb

@@ -22,7 +22,7 @@ class Projects::MilestonesController < Projects::ApplicationController
 
     respond_to do |format|
       format.html do
-        @milestones = @milestones.page(params[:page]).per(PER_PAGE)
+        @milestones = @milestones.page(params[:page])
       end
       format.json do
         render json: @milestones

app/controllers/projects/snippets_controller.rb

@@ -21,7 +21,7 @@ class Projects::SnippetsController < Projects::ApplicationController
       filter: :by_project,
       project: @project
     })
-    @snippets = @snippets.page(params[:page]).per(PER_PAGE)
+    @snippets = @snippets.page(params[:page])
   end
 
   def new

app/controllers/projects/tags_controller.rb

@@ -7,7 +7,7 @@ class Projects::TagsController < Projects::ApplicationController
 
   def index
     sorted = VersionSorter.rsort(@repository.tag_names)
-    @tags = Kaminari.paginate_array(sorted).page(params[:page]).per(PER_PAGE)
+    @tags = Kaminari.paginate_array(sorted).page(params[:page])
     @releases = project.releases.where(tag: @tags)
   end
 

app/controllers/projects/wikis_controller.rb

@@ -7,7 +7,7 @@ class Projects::WikisController < Projects::ApplicationController
   before_action :load_project_wiki
 
   def pages
-    @wiki_pages = Kaminari.paginate_array(@project_wiki.pages).page(params[:page]).per(PER_PAGE)
+    @wiki_pages = Kaminari.paginate_array(@project_wiki.pages).page(params[:page])
   end
 
   def show

app/controllers/snippets_controller.rb

@@ -25,7 +25,7 @@ class SnippetsController < ApplicationController
         filter: :by_user,
         user: @user,
         scope: params[:scope] }).
-      page(params[:page]).per(PER_PAGE)
+      page(params[:page])
 
       render 'index'
     else

app/controllers/users_controller.rb

@@ -100,7 +100,7 @@ class UsersController < ApplicationController
   def load_projects
     @projects =
       PersonalProjectsFinder.new(@user).execute(current_user)
-      .page(params[:page]).per(PER_PAGE)
+      .page(params[:page])
   end
 
   def load_contributed_projects

app/helpers/button_helper.rb

@@ -23,36 +23,34 @@ module ButtonHelper
   end
 
   def http_clone_button(project)
-    klass = 'btn js-protocol-switch'
-    klass << ' active'      if default_clone_protocol == 'http'
+    klass = 'http-selector'
     klass << ' has_tooltip' if current_user.try(:require_password?)
 
     protocol = gitlab_config.protocol.upcase
 
-    content_tag :button, protocol,
+    content_tag :a, protocol,
       class: klass,
+      href: @project.http_url_to_repo,
       data: {
-        clone: project.http_url_to_repo,
+        html: true,
+        placement: 'right',
         container: 'body',
-        html: 'true',
         title: "Set a password on your account<br>to pull or push via #{protocol}"
-      },
-      type: :button
+      }
   end
 
   def ssh_clone_button(project)
-    klass = 'btn js-protocol-switch'
-    klass << ' active'      if default_clone_protocol == 'ssh'
+    klass = 'ssh-selector'
     klass << ' has_tooltip' if current_user.try(:require_ssh_key?)
 
-    content_tag :button, 'SSH',
+    content_tag :a, 'SSH',
       class: klass,
+      href: project.ssh_url_to_repo,
       data: {
-        clone: project.ssh_url_to_repo,
+        html: true,
+        placement: 'right',
         container: 'body',
-        html: 'true',
         title: 'Add an SSH key to your profile<br>to pull or push via SSH.'
-      },
-      type: :button
+      }
   end
 end

app/helpers/issues_helper.rb

@@ -57,6 +57,19 @@ module IssuesHelper
     options_from_collection_for_select(milestones, 'id', 'title', object.milestone_id)
   end
 
+  def project_options(issuable, current_user, ability: :read_project)
+    projects = current_user.authorized_projects
+    projects = projects.select do |project|
+      current_user.can?(ability, project)
+    end
+
+    no_project = OpenStruct.new(id: 0, name_with_namespace: 'No project')
+    projects.unshift(no_project)
+    projects.delete(issuable.project)
+
+    options_from_collection_for_select(projects, :id, :name_with_namespace)
+  end
+
   def status_box_class(item)
     if item.respond_to?(:expired?) && item.expired?
       'status-box-expired'

app/helpers/projects_helper.rb

@@ -209,7 +209,7 @@ module ProjectsHelper
 
   def default_clone_protocol
     if !current_user || current_user.require_ssh_key?
-      "http"
+      gitlab_config.protocol
     else
       "ssh"
     end

app/mailers/emails/issues.rb

@@ -36,6 +36,14 @@ module Emails
       mail_answer_thread(@issue, issue_thread_options(updated_by_user_id, recipient_id))
     end
 
+    def issue_moved_email(recipient, issue, new_issue, updated_by_user)
+      setup_issue_mail(issue.id, recipient.id)
+
+      @new_issue = new_issue
+      @new_project = new_issue.project
+      mail_answer_thread(issue, issue_thread_options(updated_by_user.id, recipient.id))
+    end
+
     private
 
     def setup_issue_mail(issue_id, recipient_id)

app/models/concerns/issuable.rb

@@ -211,4 +211,13 @@ module Issuable
     Taskable.get_updated_tasks(old_content: previous_changes['description'].first,
                                new_content: description)
   end
+
+  ##
+  # Method that checks if issuable can be moved to another project.
+  #
+  # Should be overridden if issuable can be moved.
+  #
+  def can_move?(*)
+    false
+  end
 end

app/models/issue.rb

@@ -16,6 +16,7 @@
 #  state         :string(255)
 #  iid           :integer
 #  updated_by_id :integer
+#  moved_to_id   :integer
 #
 
 require 'carrierwave/orm/activerecord'
@@ -31,6 +32,8 @@ class Issue < ActiveRecord::Base
   ActsAsTaggableOn.strict_case_match = true
 
   belongs_to :project
+  belongs_to :moved_to, class_name: 'Issue'
+
   validates :project, presence: true
 
   scope :of_group,
@@ -105,9 +108,9 @@ class Issue < ActiveRecord::Base
   end
 
   def related_branches
-    return [] if self.project.empty_repo?
-    
-    self.project.repository.branch_names.select { |branch| branch.end_with?("-#{iid}") }
+    project.repository.branch_names.select do |branch|
+      branch.end_with?("-#{iid}")
+    end
   end
 
   # Reset issue events cache
@@ -137,6 +140,18 @@ class Issue < ActiveRecord::Base
     end.uniq.select { |mr| mr.open? && mr.closes_issue?(self) }
   end
 
+  def moved?
+    !moved_to.nil?
+  end
+
+  def can_move?(user, to_project = nil)
+    if to_project
+      return false unless user.can?(:admin_issue, to_project)
+    end
+
+    !moved? && user.can?(:admin_issue, self.project)
+  end
+
   def to_branch_name
     "#{title.parameterize}-#{iid}"
   end

app/models/project.rb

@@ -876,6 +876,7 @@ class Project < ActiveRecord::Base
     # Forked import is handled asynchronously
     unless forked?
       if gitlab_shell.add_repository(path_with_namespace)
+        repository.after_create
         true
       else
         errors.add(:base, 'Failed to create repository via gitlab-shell')

app/models/project_wiki.rb

@@ -123,23 +123,27 @@ class ProjectWiki
   end
 
   def repository
-    Repository.new(path_with_namespace, @project)
+    @repository ||= Repository.new(path_with_namespace, @project)
   end
 
   def default_branch
     wiki.class.default_ref
   end
 
-  private
-
   def create_repo!
     if init_repo(path_with_namespace)
-      Gollum::Wiki.new(path_to_repo)
+      wiki = Gollum::Wiki.new(path_to_repo)
     else
       raise CouldNotCreateWikiError
     end
+
+    repository.after_create
+
+    wiki
   end
 
+  private
+
   def init_repo(path_with_namespace)
     gitlab_shell.add_repository(path_with_namespace)
   end

app/models/repository.rb

@@ -42,12 +42,15 @@ class Repository
   end
 
   def exists?
-    return false unless raw_repository
+    return @exists unless @exists.nil?
 
-    raw_repository.rugged
-    true
-  rescue Gitlab::Git::Repository::NoRepository
-    false
+    @exists = cache.fetch(:exists?) do
+      begin
+        raw_repository && raw_repository.rugged ? true : false
+      rescue Gitlab::Git::Repository::NoRepository
+        false
+      end
+    end
   end
 
   def empty?
@@ -320,12 +323,23 @@ class Repository
     @avatar = nil
   end
 
+  def expire_exists_cache
+    cache.expire(:exists?)
+    @exists = nil
+  end
+
+  # Runs code after a repository has been created.
+  def after_create
+    expire_exists_cache
+  end
+
   # Runs code just before a repository is deleted.
   def before_delete
     expire_cache if exists?
 
     expire_root_ref_cache
     expire_emptiness_caches
+    expire_exists_cache
   end
 
   # Runs code just before the HEAD of a repository is changed.
@@ -351,6 +365,7 @@ class Repository
   # Runs code after a repository has been forked/imported.
   def after_import
     expire_emptiness_caches
+    expire_exists_cache
   end
 
   # Runs code after a new commit has been pushed.

app/models/user.rb

@@ -435,7 +435,7 @@ class User < ActiveRecord::Base
     Group.where("namespaces.id IN (#{union.to_sql})")
   end
 
-  # Returns the groups a user is authorized to access.
+  # Returns projects user is authorized to access.
   def authorized_projects
     Project.where("projects.id IN (#{projects_union.to_sql})")
   end

app/services/git_push_service.rb

@@ -120,7 +120,7 @@ class GitPushService < BaseService
         closed_issues = commit.closes_issues(current_user)
         closed_issues.each do |issue|
           if can?(current_user, :update_issue, issue)
-            Issues::CloseService.new(project, authors[commit], {}).execute(issue, commit)
+            Issues::CloseService.new(project, authors[commit], {}).execute(issue, commit: commit)
           end
         end
       end

app/services/issues/close_service.rb

 module Issues
   class CloseService < Issues::BaseService
-    def execute(issue, commit = nil)
+    def execute(issue, commit: nil, notifications: true, system_note: true)
       if project.jira_tracker? && project.jira_service.active
         project.jira_service.execute(commit, issue)
         todo_service.close_issue(issue, current_user)
@@ -9,8 +9,8 @@ module Issues
 
       if project.default_issues_tracker? && issue.close
         event_service.close_issue(issue, current_user)
-        create_note(issue, commit)
-        notification_service.close_issue(issue, current_user)
+        create_note(issue, commit) if system_note
+        notification_service.close_issue(issue, current_user) if notifications
         todo_service.close_issue(issue, current_user)
         execute_hooks(issue, 'close')
       end

app/services/issues/create_service.rb

@@ -4,7 +4,7 @@ module Issues
       filter_params
       label_params = params[:label_ids]
       issue = project.issues.new(params.except(:label_ids))
-      issue.author = current_user
+      issue.author = params[:author] || current_user
 
       if issue.save
         issue.update_attributes(label_ids: label_params)

app/services/issues/move_service.rb

+module Issues
+  class MoveService < Issues::BaseService
+    class MoveError < StandardError; end
+
+    def execute(issue, new_project)
+      @old_issue = issue
+      @old_project = @project
+      @new_project = new_project
+
+      unless issue.can_move?(current_user, new_project)
+        raise MoveError, 'Cannot move issue due to insufficient permissions!'
+      end
+
+      if @project == new_project
+        raise MoveError, 'Cannot move issue to project it originates from!'
+      end
+
+      # Using transaction because of a high resources footprint
+      # on rewriting notes (unfolding references)
+      #
+      ActiveRecord::Base.transaction do
+        # New issue tasks
+        #
+        @new_issue = create_new_issue
+
+        rewrite_notes
+        add_note_moved_from
+
+        # Old issue tasks
+        #
+        add_note_moved_to
+        close_issue
+        mark_as_moved
+      end
+
+      notify_participants
+
+      @new_issue
+    end
+
+    private
+
+    def create_new_issue
+      new_params = { id: nil, iid: nil, label_ids: [], milestone: nil,
+                     project: @new_project, author: @old_issue.author,
+                     description: unfold_references(@old_issue.description) }
+
+      new_params = @old_issue.serializable_hash.merge(new_params)
+      CreateService.new(@new_project, @current_user, new_params).execute
+    end
+
+    def rewrite_notes
+      @old_issue.notes.find_each do |note|
+        new_note = note.dup
+        new_params = { project: @new_project, noteable: @new_issue,
+                       note: unfold_references(new_note.note),
+                       created_at: note.created_at }
+
+        new_note.update(new_params)
+      end
+    end
+
+    def close_issue
+      close_service = CloseService.new(@old_project, @current_user)
+      close_service.execute(@old_issue, notifications: false, system_note: false)
+    end
+
+    def add_note_moved_from
+      SystemNoteService.noteable_moved(@new_issue, @new_project,
+                                       @old_issue, @current_user,
+                                       direction: :from)
+    end
+
+    def add_note_moved_to
+      SystemNoteService.noteable_moved(@old_issue, @old_project,
+                                       @new_issue, @current_user,
+                                       direction: :to)
+    end
+
+    def unfold_references(content)
+      rewriter = Gitlab::Gfm::ReferenceRewriter.new(content, @old_project,
+                                                    @current_user)
+      rewriter.rewrite(@new_project)
+    end
+
+    def notify_participants
+      notification_service.issue_moved(@old_issue, @new_issue, @current_user)
+    end
+
+    def mark_as_moved
+      @old_issue.update(moved_to: @new_issue)
+    end
+  end
+end

app/services/merge_requests/post_merge_service.rb

@@ -22,7 +22,7 @@ module MergeRequests
       closed_issues = merge_request.closes_issues(current_user)
       closed_issues.each do |issue|
         if can?(current_user, :update_issue, issue)
-          Issues::CloseService.new(project, current_user, {}).execute(issue, merge_request)
+          Issues::CloseService.new(project, current_user, {}).execute(issue, commit: merge_request)
         end
       end
     end

app/services/notification_service.rb

@@ -236,6 +236,16 @@ class NotificationService
     end
   end
 
+  def issue_moved(issue, new_issue, current_user)
+    recipients = build_recipients(issue, issue.project, current_user)
+
+    recipients.map do |recipient|
+      email = mailer.issue_moved_email(recipient, issue, new_issue, current_user)
+      email.deliver_later
+      email
+    end
+  end
+
   protected
 
   # Get project users with WATCH notification level

app/services/system_note_service.rb

@@ -411,4 +411,26 @@ class SystemNoteService
     body = "Marked the task **#{new_task.source}** as #{status_label}"
     create_note(noteable: noteable, project: project, author: author, note: body)
   end
+
+  # Called when noteable has been moved to another project
+  #
+  # direction    - symbol, :to or :from
+  # noteable     - Noteable object
+  # noteable_ref - Referenced noteable
+  # author       - User performing the move
+  #
+  # Example Note text:
+  #
+  #   "Moved to some_namespace/project_new#11"
+  #
+  # Returns the created Note object
+  def self.noteable_moved(noteable, project, noteable_ref, author, direction:)
+    unless [:to, :from].include?(direction)
+      raise ArgumentError, "Invalid direction `#{direction}`"
+    end
+
+    cross_reference = noteable_ref.to_reference(project)
+    body = "Moved #{direction} #{cross_reference}"
+    create_note(noteable: noteable, project: project, author: author, note: body)
+  end
 end

app/views/layouts/notify.html.haml

 %html{lang: "en"}
   %head
     %meta{content: "text/html; charset=utf-8", "http-equiv" => "Content-Type"}
-      %title
-        GitLab
-  :css
-    img {
-      max-width: 100%;
-      height: auto;
-    }
-    p.details {
-      font-style:italic;
-      color:#777
-    }
-    .footer p {
-      font-size:small;
-      color:#777
-    }
-    pre.commit-message {
-      white-space: pre-wrap;
-    }
-    .file-stats a {
-      text-decoration: none;
-    }
-    .file-stats .new-file {
-      color: #090;
-    }
-    .file-stats .deleted-file {
-      color: #B00;
-    }
+    %title
+      GitLab
+    = stylesheet_link_tag 'notify'
   %body
     %div.content
       = yield

app/views/notify/issue_moved_email.html.haml

+%p
+  Issue was moved to another project.
+%p
+  New issue:
+  = link_to namespace_project_issue_url(@new_project.namespace, @new_project, @new_issue) do
+    = @new_issue.title

app/views/notify/issue_moved_email.text.erb

+Issue was moved to another project.
+
+New issue location:
+<%= namespace_project_issue_url(@new_project.namespace, @new_project, @new_issue) %>

app/views/projects/diffs/_diffs.html.haml

@@ -20,4 +20,4 @@
     - next unless blob
 
     = render 'projects/diffs/file', i: index, project: project,
-      diff_file: diff_file, diff_commit: diff_commit, blob: blob
+      diff_file: diff_file, diff_commit: diff_commit, blob: blob, diff_refs: diff_refs

app/views/projects/diffs/_file.html.haml

@@ -53,6 +53,6 @@
           = render "projects/diffs/text_file", diff_file: diff_file, index: i
       - elsif blob.image?
         - old_file = project.repository.prev_blob_for_diff(diff_commit, diff_file)
-        = render "projects/diffs/image", diff_file: diff_file, old_file: old_file, file: blob, index: i
+        = render "projects/diffs/image", diff_file: diff_file, old_file: old_file, file: blob, index: i, diff_refs: diff_refs
       - else
         .nothing-here-block No preview for this file type

app/views/projects/diffs/_image.html.haml

 - diff = diff_file.diff
 - file_raw_path = namespace_project_raw_path(@project.namespace, @project, tree_join(@commit.id, diff.new_path))
-- old_file_raw_path = namespace_project_raw_path(@project.namespace, @project, tree_join(@commit.parent_id, diff.old_path))
+- old_commit_id = diff_refs.first.id
+- old_file_raw_path = namespace_project_raw_path(@project.namespace, @project, tree_join(old_commit_id, diff.old_path))
 - if diff.renamed_file || diff.new_file || diff.deleted_file
   .image
     %span.wrap
@@ -12,7 +13,7 @@
     %div.two-up.view
       %span.wrap
         .frame.deleted
-          %a{href: namespace_project_blob_path(@project.namespace, @project, tree_join(@commit.parent_id, diff.old_path))}
+          %a{href: namespace_project_blob_path(@project.namespace, @project, tree_join(old_commit_id, diff.old_path))}
             %img{src: old_file_raw_path}
         %p.image-info.hide
           %span.meta-filesize= "#{number_to_human_size old_file.size}"

app/views/projects/diffs/_line.html.haml

+- type = line.type
+%tr.line_holder{id: line_code, class: type}
+  - case type
+  - when 'match'
+    = render "projects/diffs/match_line", {line: line.text,
+      line_old: line.old_pos, line_new: line.new_pos, bottom: false, new_file: diff_file.new_file}
+  - when 'nonewline'
+    %td.old_line.diff-line-num
+    %td.new_line.diff-line-num
+    %td.line_content.match= line.text
+  - else
+    %td.old_line.diff-line-num{class: type}
+      - link_text = raw(type == "new" ? " " : line.old_pos)
+      - if defined?(plain) && plain
+        = link_text
+      - else
+        = link_to link_text, "##{line_code}", id: line_code
+      - if @comments_allowed && can?(current_user, :create_note, @project)
+        = link_to_new_diff_note(line_code)
+    %td.new_line.diff-line-num{class: type, data: {linenumber: line.new_pos}}
+      - link_text = raw(type == "old" ? " " : line.new_pos)
+      - if defined?(plain) && plain
+        = link_text
+      - else
+        = link_to link_text, "##{line_code}", id: line_code
+    %td.line_content{class: "noteable_line #{type} #{line_code}", data: { line_code: line_code }}= diff_line_content(line.text)

app/views/projects/diffs/_text_file.html.haml

@@ -8,26 +8,9 @@
   - last_line = 0
   - raw_diff_lines = diff_file.diff_lines.to_a
   - diff_file.highlighted_diff_lines.each_with_index do |line, index|
-    - type = line.type
-    - last_line = line.new_pos
     - line_code = generate_line_code(diff_file.file_path, line)
-    - line_old = line.old_pos
-    %tr.line_holder{ id: line_code, class: "#{type}" }
-      - if type == "match"
-        = render "projects/diffs/match_line", {line: line.text,
-          line_old: line_old, line_new: line.new_pos, bottom: false, new_file: diff_file.new_file}
-      - elsif type == 'nonewline'
-        %td.old_line.diff-line-num
-        %td.new_line.diff-line-num
-        %td.line_content.match= line.text
-      - else
-        %td.old_line.diff-line-num{class: type}
-          = link_to raw(type == "new" ? " " : line_old), "##{line_code}", id: line_code
-          - if @comments_allowed && can?(current_user, :create_note, @project)
-            = link_to_new_diff_note(line_code)
-        %td.new_line.diff-line-num{class: type, data: {linenumber: line.new_pos}}
-          = link_to raw(type == "old" ? " " : line.new_pos), "##{line_code}", id: line_code
-        %td.line_content{class: "noteable_line #{type} #{line_code}", data: { line_code: line_code }}= diff_line_content(line.text)
+    - last_line = line.new_pos
+    = render "projects/diffs/line", {line: line, diff_file: diff_file, line_code: line_code}
 
     - if @reply_allowed
       - comments = @line_notes.select { |n| n.line_code == line_code && n.active? }.sort_by(&:created_at)

app/views/projects/notes/_edit_form.html.haml

@@ -5,6 +5,6 @@
       = render 'projects/zen', f: f, attr: :note, classes: 'note_text js-note-text js-task-list-field'
       = render 'projects/notes/hints'
 
-    .note-form-actions
+    .note-form-actions.clearfix
       = f.submit 'Save Comment', class: 'btn btn-nr btn-save btn-grouped js-comment-button'
       = link_to  'Cancel', '#', class: 'btn btn-nr btn-cancel note-edit-cancel'

app/views/shared/_clone_panel.html.haml

@@ -8,11 +8,9 @@
       = icon('angle-down')
     %ul.dropdown-menu.dropdown-menu-right.clone-options-dropdown
       %li
-        %a#ssh-selector{href: @project.ssh_url_to_repo}
-          SSH
+        = ssh_clone_button(project)
       %li
-        %a#http-selector{href: @project.http_url_to_repo}
-          HTTPS
+        = http_clone_button(project)
 
   = text_field_tag :project_clone, default_url_to_repo(project), class: "js-select-on-focus form-control", readonly: true
   .input-group-btn

app/views/shared/issuable/_form.html.haml

@@ -85,13 +85,26 @@
       - if can? current_user, :admin_label, issuable.project
         = link_to 'Create new label', new_namespace_project_label_path(issuable.project.namespace, issuable.project), target: :blank
 
+- if issuable.can_move?(current_user)
+  %hr
+  .form-group
+    = label_tag :move_to_project_id, 'Move', class: 'control-label'
+    .col-sm-10
+      - projects = project_options(issuable, current_user, ability: :admin_issue)
+      = select_tag(:move_to_project_id, projects, include_blank: true,
+                   class: 'select2', data: { placeholder: 'Select project' })
+       
+      %span{ data: { toggle: 'tooltip', placement: 'auto top' }, style: 'cursor: default',
+      title: 'Moving an issue will copy the discussion to a different project and close it here. All participants will be notified of the new location.' }
+        = icon('question-circle')
+
 - if issuable.is_a?(MergeRequest)
   %hr
-    - if @merge_request.new_record?
-      .form-group
-        = f.label :source_branch, class: 'control-label'
-        .col-sm-10
-          = f.select(:source_branch, [@merge_request.source_branch], { }, { class: 'source_branch select2 span2', disabled: true })
+  - if @merge_request.new_record?
+    .form-group
+      = f.label :source_branch, class: 'control-label'
+      .col-sm-10
+        = f.select(:source_branch, [@merge_request.source_branch], { }, { class: 'source_branch select2 span2', disabled: true })
   .form-group
     = f.label :target_branch, class: 'control-label'
     .col-sm-10

app/workers/repository_fork_worker.rb

@@ -20,14 +20,15 @@ class RepositoryForkWorker
       return
     end
 
+    project.repository.after_import
+
     unless project.valid_repo?
-      logger.error("Project #{id} had an invalid repository after fork")
+      logger.error("Project #{project_id} had an invalid repository after fork")
       project.update(import_error: "The forked repository is invalid.")
       project.import_fail
       return
     end
 
-    project.repository.after_import
     project.import_finish
   end
 end

config/application.rb

@@ -49,6 +49,7 @@ module Gitlab
     config.assets.paths << Gemojione.index.images_path
     config.assets.precompile << "*.png"
     config.assets.precompile << "print.css"
+    config.assets.precompile << "notify.css"
 
     # Version of your assets, change this if you want to expire all your assets
     config.assets.version = '1.0'

config/initializers/premailer.rb

+# See https://github.com/fphilipe/premailer-rails#configuration
+Premailer::Rails.config.merge!(
+  generate_text_part: false,
+  preserve_styles: true,
+  remove_comments: true,
+  remove_ids: true
+)

db/migrate/20160317092222_add_moved_to_to_issue.rb

+class AddMovedToToIssue < ActiveRecord::Migration
+  def change
+    add_reference :issues, :moved_to, references: :issues
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20160316204731) do
+ActiveRecord::Schema.define(version: 20160317092222) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -416,6 +416,7 @@ ActiveRecord::Schema.define(version: 20160316204731) do
     t.string   "state"
     t.integer  "iid"
     t.integer  "updated_by_id"
+    t.integer  "moved_to_id"
     t.boolean  "confidential",              default: false
     t.datetime "deleted_at"
   end

doc/install/installation.md

@@ -348,7 +348,7 @@ GitLab Shell is an SSH access and repository management software developed speci
     cd /home/git
     sudo -u git -H git clone https://gitlab.com/gitlab-org/gitlab-workhorse.git
     cd gitlab-workhorse
-    sudo -u git -H git checkout 0.6.5
+    sudo -u git -H git checkout v0.7.1
     sudo -u git -H make
 
 ### Initialize Database and Activate Advanced Features

doc/update/8.5-to-8.6.md

@@ -58,7 +58,7 @@ GitLab 8.1.
 ```bash
 cd /home/git/gitlab-workhorse
 sudo -u git -H git fetch --all
-sudo -u git -H git checkout 0.6.5
+sudo -u git -H git checkout v0.7.1
 sudo -u git -H make
 ```
 

features/project/issues/issues.feature

@@ -160,6 +160,7 @@ Feature: Project Issues
 
   Scenario: Issues on empty project
     Given empty project "Empty Project"
+    And I have an ssh key
     When I visit empty project page
     And I see empty project details with ssh clone info
     When I visit empty project's issues page

features/steps/project/create.rb

@@ -27,7 +27,7 @@ class Spinach::Features::ProjectCreate < Spinach::FeatureSteps
 
   step 'I click on HTTP' do
     find('#clone-dropdown').click
-    find('#http-selector').click
+    find('.http-selector').click
   end
 
   step 'Remote url should update to http link' do
@@ -36,7 +36,7 @@ class Spinach::Features::ProjectCreate < Spinach::FeatureSteps
 
   step 'If I click on SSH' do
     find('#clone-dropdown').click
-    find('#ssh-selector').click
+    find('.ssh-selector').click
   end
 
   step 'Remote url should update to ssh link' do

features/steps/project/issues/issues.rb

@@ -5,6 +5,7 @@ class Spinach::Features::ProjectIssues < Spinach::FeatureSteps
   include SharedNote
   include SharedPaths
   include SharedMarkdown
+  include SharedUser
 
   step 'I should see "Release 0.4" in issues' do
     expect(page).to have_content "Release 0.4"
@@ -240,7 +241,7 @@ class Spinach::Features::ProjectIssues < Spinach::FeatureSteps
   end
 
   step 'empty project "Empty Project"' do
-    create :empty_project, name: 'Empty Project', namespace: @user.namespace
+    create :project_empty_repo, name: 'Empty Project', namespace: @user.namespace
   end
 
   When 'I visit empty project page' do

lib/banzai/filter/reference_filter.rb

@@ -47,6 +47,7 @@ module Banzai
       # Returns a String
       def data_attribute(attributes = {})
         attributes[:reference_filter] = self.class.name.demodulize
+        attributes.delete(:original) if context[:no_original_data]
         attributes.map { |key, value| %Q(data-#{key.to_s.dasherize}="#{escape_once(value)}") }.join(" ")
       end
 

lib/gitlab/gfm/reference_rewriter.rb

+module Gitlab
+  module Gfm
+    ##
+    # Class that unfolds local references in text.
+    #
+    # The initializer takes text in Markdown and project this text is valid
+    # in context of.
+    #
+    # `unfold` method tries to find all local references and unfold each of
+    # those local references to cross reference format, assuming that the
+    # argument passed to this method is a project that references will be
+    # viewed from (see `Referable#to_reference method).
+    #
+    # Examples:
+    #
+    # 'Hello, this issue is related to #123 and
+    #  other issues labeled with ~"label"', will be converted to:
+    #
+    # 'Hello, this issue is related to gitlab-org/gitlab-ce#123 and
+    #  other issue labeled with gitlab-org/gitlab-ce~"label"'.
+    #
+    # It does respect markdown lexical rules, so text in code block will not be
+    # replaced, see another example:
+    #
+    # 'Merge request for issue #1234, see also link:
+    #  http://gitlab.com/some/link/#1234, and code `puts #1234`' =>
+    #
+    # 'Merge request for issue gitlab-org/gitlab-ce#1234, se also link:
+    #  http://gitlab.com/some/link/#1234, and code `puts #1234`'
+    #
+    class ReferenceRewriter
+      def initialize(text, source_project, current_user)
+        @text = text
+        @source_project = source_project
+        @current_user = current_user
+        @original_html = markdown(text)
+      end
+
+      def rewrite(target_project)
+        pattern = Gitlab::ReferenceExtractor.references_pattern
+
+        @text.gsub(pattern) do |reference|
+          unfold_reference(reference, Regexp.last_match, target_project)
+        end
+      end
+
+      private
+
+      def unfold_reference(reference, match, target_project)
+        before = @text[0...match.begin(0)]
+        after = @text[match.end(0)..-1]
+
+        referable = find_referable(reference)
+        return reference unless referable
+
+        cross_reference = referable.to_reference(target_project)
+        return reference if reference == cross_reference
+
+        new_text = before + cross_reference + after
+        substitution_valid?(new_text) ? cross_reference : reference
+      end
+
+      def find_referable(reference)
+        extractor = Gitlab::ReferenceExtractor.new(@source_project,
+                                                   @current_user)
+        extractor.analyze(reference)
+        extractor.all.first
+      end
+
+      def substitution_valid?(substituted)
+        @original_html == markdown(substituted)
+      end
+
+      def markdown(text)
+        Banzai.render(text, project: @source_project, no_original_data: true)
+      end
+    end
+  end
+end

lib/gitlab/reference_extractor.rb

 module Gitlab
   # Extract possible GFM references from an arbitrary String for further processing.
   class ReferenceExtractor < Banzai::ReferenceExtractor
+    REFERABLES = %i(user issue label milestone merge_request snippet commit commit_range)
     attr_accessor :project, :current_user, :author
 
     def initialize(project, current_user = nil, author = nil)
@@ -17,7 +18,7 @@ module Gitlab
       super(text, context.merge(project: project))
     end
 
-    %i(user label milestone merge_request snippet commit commit_range).each do |type|
+    REFERABLES.each do |type|
       define_method("#{type}s") do
         @references[type] ||= references(type, reference_context)
       end
@@ -31,6 +32,21 @@ module Gitlab
       end
     end
 
+    def all
+      REFERABLES.each { |referable| send(referable.to_s.pluralize) }
+      @references.values.flatten
+    end
+
+    def self.references_pattern
+      return @pattern if @pattern
+
+      patterns = REFERABLES.map do |ref|
+        ref.to_s.classify.constantize.try(:reference_pattern)
+      end
+
+      @pattern = Regexp.union(patterns.compact)
+    end
+
     private
 
     def reference_context

spec/controllers/projects/issues_controller_spec.rb

 require('spec_helper')
 
 describe Projects::IssuesController do
-  let(:project) { create(:project) }
+  let(:project) { create(:project_empty_repo) }
   let(:user)    { create(:user) }
   let(:issue)   { create(:issue, project: project) }
 
@@ -41,7 +41,7 @@ describe Projects::IssuesController do
   end
 
   describe 'Confidential Issues' do
-    let(:project) { create(:empty_project, :public) }
+    let(:project) { create(:project_empty_repo, :public) }
     let(:assignee) { create(:assignee) }
     let(:author) { create(:user) }
     let(:non_member) { create(:user) }

spec/features/issues/move_spec.rb

+require 'rails_helper'
+
+feature 'issue move to another project' do
+  let(:user) { create(:user) }
+  let(:old_project) { create(:project) }
+  let(:text) { 'Some issue description' }
+
+  let(:issue) do
+    create(:issue, description: text, project: old_project, author: user)
+  end
+
+  background { login_as(user) }
+
+  context 'user does not have permission to move issue' do
+    background do
+      old_project.team << [user, :guest]
+
+      edit_issue(issue)
+    end
+
+    scenario 'moving issue to another project not allowed' do
+      expect(page).to have_no_select('move_to_project_id')
+    end
+  end
+
+  context 'user has permission to move issue' do
+    let!(:mr) { create(:merge_request, source_project: old_project) }
+    let(:new_project) { create(:project) }
+    let(:text) { 'Text with !1' }
+    let(:cross_reference) { old_project.to_reference }
+
+    background do
+      old_project.team << [user, :reporter]
+      new_project.team << [user, :reporter]
+
+      edit_issue(issue)
+    end
+
+    scenario 'moving issue to another project' do
+      select(new_project.name_with_namespace, from: 'move_to_project_id')
+      click_button('Save changes')
+
+      expect(current_url).to include project_path(new_project)
+
+      page.within('.issue') do
+        expect(page).to have_content("Text with #{cross_reference}!1")
+        expect(page).to have_content("Moved from #{cross_reference}#1")
+        expect(page).to have_content(issue.title)
+      end
+    end
+
+    context 'projects user does not have permission to move issue to exist' do
+      let!(:private_project) { create(:project, :private) }
+      let(:another_project) { create(:project) }
+      background { another_project.team << [user, :guest] }
+
+      scenario 'browsing projects in projects select' do
+        options = [ '', 'No project', new_project.name_with_namespace ]
+        expect(page).to have_select('move_to_project_id', options: options)
+      end
+    end
+
+    context 'issue has been already moved' do
+      let(:new_issue) { create(:issue, project: new_project) }
+      let(:issue) do
+        create(:issue, project: old_project, author: user, moved_to: new_issue)
+      end
+
+      scenario 'user wants to move issue that has already been moved' do
+        expect(page).to have_no_select('move_to_project_id')
+      end
+    end
+  end
+
+  def edit_issue(issue)
+    visit issue_path(issue)
+    page.within('.issuable-header') { click_link 'Edit' }
+  end
+
+  def issue_path(issue)
+    namespace_project_issue_path(issue.project.namespace, issue.project, issue)
+  end
+
+  def project_path(project)
+    namespace_project_path(new_project.namespace, new_project)
+  end
+end

spec/helpers/projects_helper_spec.rb

@@ -94,4 +94,23 @@ describe ProjectsHelper do
       end
     end
   end
+
+  describe 'default_clone_protocol' do
+    describe 'using HTTP' do
+      it 'returns HTTP' do
+        expect(helper).to receive(:current_user).and_return(nil)
+
+        expect(helper.send(:default_clone_protocol)).to eq('http')
+      end
+    end
+
+    describe 'using HTTPS' do
+      it 'returns HTTPS' do
+        allow(Gitlab.config.gitlab).to receive(:protocol).and_return('https')
+        expect(helper).to receive(:current_user).and_return(nil)
+
+        expect(helper.send(:default_clone_protocol)).to eq('https')
+      end
+    end
+  end
 end

spec/lib/gitlab/gfm/reference_rewriter_spec.rb

+require 'spec_helper'
+
+describe Gitlab::Gfm::ReferenceRewriter do
+  let(:text) { 'some text' }
+  let(:old_project) { create(:project) }
+  let(:new_project) { create(:project) }
+  let(:user) { create(:user) }
+
+  before { old_project.team << [user, :guest] }
+
+  describe '#rewrite' do
+    subject do
+      described_class.new(text, old_project, user).rewrite(new_project)
+    end
+
+    context 'multiple issues and merge requests referenced' do
+      let!(:issue_first) { create(:issue, project: old_project) }
+      let!(:issue_second) { create(:issue, project: old_project) }
+      let!(:merge_request) { create(:merge_request, source_project: old_project) }
+
+      context 'plain text description' do
+        let(:text) { 'Description that references #1, #2 and !1' }
+
+        it { is_expected.to include issue_first.to_reference(new_project) }
+        it { is_expected.to include issue_second.to_reference(new_project) }
+        it { is_expected.to include merge_request.to_reference(new_project) }
+      end
+
+      context 'description with ignored elements' do
+        let(:text) do
+          "Hi. This references #1, but not `#2`\n" +
+          '<pre>and not !1</pre>'
+        end
+
+        it { is_expected.to include issue_first.to_reference(new_project) }
+        it { is_expected.to_not include issue_second.to_reference(new_project) }
+        it { is_expected.to_not include merge_request.to_reference(new_project) }
+      end
+
+      context 'description ambigous elements' do
+        context 'url' do
+          let(:url) { 'http://gitlab.com/#1' }
+          let(:text) { "This references #1, but not #{url}" }
+
+          it { is_expected.to include url }
+        end
+
+        context 'code' do
+          let(:text) { "#1, but not `[#1]`" }
+          it { is_expected.to eq "#{issue_first.to_reference(new_project)}, but not `[#1]`" }
+        end
+
+        context 'code reverse' do
+          let(:text) { "not `#1`, but #1" }
+          it { is_expected.to eq "not `#1`, but #{issue_first.to_reference(new_project)}" }
+        end
+
+        context 'code in random order' do
+          let(:text) { "#1, `#1`, #1, `#1`" }
+          let(:ref) { issue_first.to_reference(new_project) }
+
+          it { is_expected.to eq "#{ref}, `#1`, #{ref}, `#1`" }
+        end
+
+        context 'description with labels' do
+          let!(:label) { create(:label, id: 123, name: 'test', project: old_project) }
+          let(:project_ref) { old_project.to_reference }
+
+          context 'label referenced by id' do
+            let(:text) { '#1 and ~123' }
+            it { is_expected.to eq %Q{#{project_ref}#1 and #{project_ref}~123} }
+          end
+
+          context 'label referenced by text' do
+            let(:text) { '#1 and ~"test"' }
+            it { is_expected.to eq %Q{#{project_ref}#1 and #{project_ref}~123} }
+          end
+        end
+      end
+
+      context 'reference contains milestone' do
+        let(:milestone) { create(:milestone) }
+        let(:text) { "milestone ref: #{milestone.to_reference}" }
+
+        it { is_expected.to eq text }
+      end
+    end
+  end
+end

spec/lib/gitlab/reference_extractor_spec.rb

@@ -124,4 +124,24 @@ describe Gitlab::ReferenceExtractor, lib: true do
       expect(extracted).to match_array([issue])
     end
   end
+
+  describe '#all' do
+    let(:issue) { create(:issue, project: project) }
+    let(:label) { create(:label, project: project) }
+    let(:text) { "Ref. #{issue.to_reference} and #{label.to_reference}" }
+
+    before do
+      project.team << [project.creator, :developer]
+      subject.analyze(text)
+    end
+
+    it 'returns all referables' do
+      expect(subject.all).to match_array([issue, label])
+    end
+  end
+
+  describe '.references_pattern' do
+    subject { described_class.references_pattern }
+    it { is_expected.to be_kind_of Regexp }
+  end
 end

spec/mailers/notify_spec.rb

@@ -158,6 +158,33 @@ describe Notify do
             is_expected.to have_body_text /#{namespace_project_issue_path project.namespace, project, issue}/
           end
         end
+
+        describe 'moved to another project' do
+          let(:new_issue) { create(:issue) }
+          subject { Notify.issue_moved_email(recipient, issue, new_issue, current_user) }
+
+          it_behaves_like 'an answer to an existing thread', 'issue'
+          it_behaves_like 'it should show Gmail Actions View Issue link'
+          it_behaves_like 'an unsubscribeable thread'
+
+          it 'contains description about action taken' do
+            is_expected.to have_body_text 'Issue was moved to another project'
+          end
+
+          it 'has the correct subject' do
+            is_expected.to have_subject /#{issue.title} \(##{issue.iid}\)/i
+          end
+
+          it 'contains link to new issue' do
+            new_issue_url = namespace_project_issue_path(new_issue.project.namespace,
+                                                         new_issue.project, new_issue)
+            is_expected.to have_body_text new_issue_url
+          end
+
+          it 'contains a link to the original issue' do
+            is_expected.to have_body_text /#{namespace_project_issue_path project.namespace, project, issue}/
+          end
+        end
       end
 
       context 'for merge requests' do

spec/models/issue_spec.rb

@@ -135,12 +135,62 @@ describe Issue, models: true do
     end
   end
 
+  describe '#can_move?' do
+    let(:user) { create(:user) }
+    let(:issue) { create(:issue) }
+    subject { issue.can_move?(user) }
+
+    context 'user is not a member of project issue belongs to' do
+      it { is_expected.to eq false}
+    end
+
+    context 'user is reporter in project issue belongs to' do
+      let(:project) { create(:project) }
+      let(:issue) { create(:issue, project: project) }
+
+      before { project.team << [user, :reporter] }
+
+      it { is_expected.to eq true }
+
+      context 'checking destination project also' do
+        subject { issue.can_move?(user, to_project) }
+        let(:to_project) { create(:project) }
+
+        context 'destination project allowed' do
+          before { to_project.team << [user, :reporter] }
+          it { is_expected.to eq true }
+        end
+
+        context 'destination project not allowed' do
+          before { to_project.team << [user, :guest] }
+          it { is_expected.to eq false }
+        end
+      end
+    end
+  end
+
+  describe '#moved?' do
+    let(:issue) { create(:issue) }
+    subject { issue.moved? }
+
+    context 'issue not moved' do
+      it { is_expected.to eq false }
+    end
+
+    context 'issue already moved' do
+      let(:moved_to_issue) { create(:issue) }
+      let(:issue) { create(:issue, moved_to: moved_to_issue) }
+
+      it { is_expected.to eq true }
+    end
+  end
+
   describe '#related_branches' do
     it "selects the right branches" do
       allow(subject.project.repository).to receive(:branch_names).
-                                    and_return(["mpempe", "#{subject.iid}mepmep", subject.to_branch_name])
+        and_return(["mpempe", "#{subject.iid}mepmep", subject.to_branch_name])
 
-      expect(subject.related_branches).to eq [subject.to_branch_name]
+      expect(subject.related_branches).to eq([subject.to_branch_name])
     end
   end
 

spec/models/project_spec.rb

@@ -720,4 +720,45 @@ describe Project, models: true do
       expect(described_class.search_by_title('KITTENS')).to eq([project])
     end
   end
+
+  describe '#create_repository' do
+    let(:project) { create(:project) }
+    let(:shell) { Gitlab::Shell.new }
+
+    before do
+      allow(project).to receive(:gitlab_shell).and_return(shell)
+    end
+
+    context 'using a regular repository' do
+      it 'creates the repository' do
+        expect(shell).to receive(:add_repository).
+          with(project.path_with_namespace).
+          and_return(true)
+
+        expect(project.repository).to receive(:after_create)
+
+        expect(project.create_repository).to eq(true)
+      end
+
+      it 'adds an error if the repository could not be created' do
+        expect(shell).to receive(:add_repository).
+          with(project.path_with_namespace).
+          and_return(false)
+
+        expect(project.repository).not_to receive(:after_create)
+
+        expect(project.create_repository).to eq(false)
+        expect(project.errors).not_to be_empty
+      end
+    end
+
+    context 'using a forked repository' do
+      it 'does nothing' do
+        expect(project).to receive(:forked?).and_return(true)
+        expect(shell).not_to receive(:add_repository)
+
+        project.create_repository
+      end
+    end
+  end
 end

spec/models/project_wiki_spec.rb

@@ -244,6 +244,18 @@ describe ProjectWiki, models: true do
     end
   end
 
+  describe '#create_repo!' do
+    it 'creates a repository' do
+      expect(subject).to receive(:init_repo).
+        with(subject.path_with_namespace).
+        and_return(true)
+
+      expect(subject.repository).to receive(:after_create)
+
+      expect(subject.create_repo!).to be_an_instance_of(Gollum::Wiki)
+    end
+  end
+
   private
 
   def create_temp_repo(path)

spec/models/repository_spec.rb

@@ -537,6 +537,12 @@ describe Repository, models: true do
 
         repository.before_delete
       end
+
+      it 'flushes the exists cache' do
+        expect(repository).to receive(:expire_exists_cache)
+
+        repository.before_delete
+      end
     end
 
     describe 'when a repository exists' do
@@ -593,6 +599,12 @@ describe Repository, models: true do
 
       repository.after_import
     end
+
+    it 'flushes the exists cache' do
+      expect(repository).to receive(:expire_exists_cache)
+
+      repository.after_import
+    end
   end
 
   describe '#after_push_commit' do
@@ -619,6 +631,14 @@ describe Repository, models: true do
     end
   end
 
+  describe '#after_create' do
+    it 'flushes the exists cache' do
+      expect(repository).to receive(:expire_exists_cache)
+
+      repository.after_create
+    end
+  end
+
   describe "#main_language" do
     it 'shows the main language of the project' do
       expect(repository.main_language).to eq("Ruby")
@@ -781,6 +801,16 @@ describe Repository, models: true do
     end
   end
 
+  describe '#expire_exists_cache' do
+    let(:cache) { repository.send(:cache) }
+
+    it 'expires the cache' do
+      expect(cache).to receive(:expire).with(:exists?)
+
+      repository.expire_exists_cache
+    end
+  end
+
   describe '#build_cache' do
     let(:cache) { repository.send(:cache) }
 

spec/services/issues/move_service_spec.rb

+require 'spec_helper'
+
+describe Issues::MoveService, services: true do
+  let(:user) { create(:user) }
+  let(:author) { create(:user) }
+  let(:title) { 'Some issue' }
+  let(:description) { 'Some issue description' }
+  let(:old_project) { create(:project) }
+  let(:new_project) { create(:project) }
+
+  let(:old_issue) do
+    create(:issue, title: title, description: description,
+                   project: old_project, author: author)
+  end
+
+  let(:move_service) do
+    described_class.new(old_project, user)
+  end
+
+  shared_context 'user can move issue' do
+    before do
+      old_project.team << [user, :reporter]
+      new_project.team << [user, :reporter]
+    end
+  end
+
+  describe '#execute' do
+    shared_context 'issue move executed' do
+      let!(:new_issue) { move_service.execute(old_issue, new_project) }
+    end
+
+    context 'issue movable' do
+      include_context 'user can move issue'
+
+      context 'generic issue' do
+        include_context 'issue move executed'
+
+        it 'creates a new issue in a new project' do
+          expect(new_issue.project).to eq new_project
+        end
+
+        it 'rewrites issue title' do
+          expect(new_issue.title).to eq title
+        end
+
+        it 'rewrites issue description' do
+          expect(new_issue.description).to eq description
+        end
+
+        it 'adds system note to old issue at the end' do
+          expect(old_issue.notes.last.note).to match /^Moved to/
+        end
+
+        it 'adds system note to new issue at the end' do
+          expect(new_issue.notes.last.note).to match /^Moved from/
+        end
+
+        it 'closes old issue' do
+          expect(old_issue.closed?).to be true
+        end
+
+        it 'persists new issue' do
+          expect(new_issue.persisted?).to be true
+        end
+
+        it 'persists all changes' do
+          expect(old_issue.changed?).to be false
+          expect(new_issue.changed?).to be false
+        end
+
+        it 'preserves author' do
+          expect(new_issue.author).to eq author
+        end
+
+        it 'removes data that is invalid in new context' do
+          expect(new_issue.milestone).to be_nil
+          expect(new_issue.labels).to be_empty
+        end
+
+        it 'creates a new internal id for issue' do
+          expect(new_issue.iid).to be 1
+        end
+
+        it 'marks issue as moved' do
+          expect(old_issue.moved?).to eq true
+          expect(old_issue.moved_to).to eq new_issue
+        end
+      end
+
+      context 'issue with notes' do
+        context 'notes without references' do
+          let(:notes_params) do
+            [{ system: false, note: 'Some comment 1' },
+             { system: true, note: 'Some system note' },
+             { system: false, note: 'Some comment 2' }]
+          end
+
+          let(:notes_contents) { notes_params.map { |n| n[:note] } }
+
+          before do
+            note_params = { noteable: old_issue, project: old_project, author: author }
+            notes_params.each do |note|
+              create(:note, note_params.merge(note))
+            end
+          end
+
+          include_context 'issue move executed'
+
+          let(:all_notes) { new_issue.notes.order('id ASC') }
+          let(:system_notes) { all_notes.system }
+          let(:user_notes) { all_notes.user }
+
+          it 'rewrites existing notes in valid order' do
+            expect(all_notes.pluck(:note).first(3)).to eq notes_contents
+          end
+
+          it 'adds a system note about move after rewritten notes' do
+            expect(system_notes.last.note).to match /^Moved from/
+          end
+
+          it 'preserves orignal author of comment' do
+            expect(user_notes.pluck(:author_id)).to all(eq(author.id))
+          end
+
+          it 'preserves time when note has been created at' do
+            expect(old_issue.notes.first.created_at)
+              .to eq new_issue.notes.first.created_at
+          end
+        end
+
+        context 'notes with references' do
+          before do
+            create(:merge_request, source_project: old_project)
+            create(:note, noteable: old_issue, project: old_project, author: author,
+                          note: 'Note with reference to merge request !1')
+          end
+
+          include_context 'issue move executed'
+          let(:new_note) { new_issue.notes.first }
+
+          it 'rewrites references using a cross reference to old project' do
+            expect(new_note.note)
+              .to eq "Note with reference to merge request #{old_project.to_reference}!1"
+          end
+        end
+      end
+
+      describe 'rewritting references' do
+        include_context 'issue move executed'
+
+        context 'issue reference' do
+          let(:another_issue) { create(:issue, project: old_project) }
+          let(:description) { "Some description #{another_issue.to_reference}" }
+
+          it 'rewrites referenced issues creating cross project reference' do
+            expect(new_issue.description)
+              .to eq "Some description #{old_project.to_reference}#{another_issue.to_reference}"
+          end
+        end
+      end
+
+      context 'moving to same project' do
+        let(:new_project) { old_project }
+
+        it 'raises error' do
+          expect { move_service.execute(old_issue, new_project) }
+            .to raise_error(StandardError, /Cannot move issue/)
+        end
+      end
+    end
+
+    describe 'move permissions' do
+      let(:move) { move_service.execute(old_issue, new_project) }
+
+      context 'user is reporter in both projects' do
+        include_context 'user can move issue'
+        it { expect { move }.to_not raise_error }
+      end
+
+      context 'user is reporter only in new project' do
+        before { new_project.team << [user, :reporter] }
+        it { expect { move }.to raise_error(StandardError, /permissions/) }
+      end
+
+      context 'user is reporter only in old project' do
+        before { old_project.team << [user, :reporter] }
+        it { expect { move }.to raise_error(StandardError, /permissions/) }
+      end
+
+      context 'user is reporter in one project and guest in another' do
+        before do
+          new_project.team << [user, :guest]
+          old_project.team << [user, :reporter]
+        end
+
+        it { expect { move }.to raise_error(StandardError, /permissions/) }
+      end
+
+      context 'issue has already been moved' do
+        include_context 'user can move issue'
+
+        let(:moved_to_issue) { create(:issue) }
+
+        let(:old_issue) do
+          create(:issue, project: old_project, author: author,
+                         moved_to: moved_to_issue)
+        end
+
+        it { expect { move }.to raise_error(StandardError, /permissions/) }
+      end
+    end
+  end
+end

spec/services/system_note_service_spec.rb

@@ -453,6 +453,59 @@ describe SystemNoteService, services: true do
     end
   end
 
+  describe '.noteable_moved' do
+    let(:new_project) { create(:project) }
+    let(:new_noteable) { create(:issue, project: new_project) }
+
+    subject do
+      described_class.noteable_moved(noteable, project, new_noteable, author, direction: direction)
+    end
+
+    shared_examples 'cross project mentionable' do
+      include GitlabMarkdownHelper
+
+      it 'should contain cross reference to new noteable' do
+        expect(subject.note).to include cross_project_reference(new_project, new_noteable)
+      end
+
+      it 'should mention referenced noteable' do
+        expect(subject.note).to include new_noteable.to_reference
+      end
+
+      it 'should mention referenced project' do
+        expect(subject.note).to include new_project.to_reference
+      end
+    end
+
+    context 'moved to' do
+      let(:direction) { :to }
+
+      it_behaves_like 'cross project mentionable'
+
+      it 'should notify about noteable being moved to' do
+        expect(subject.note).to match /Moved to/
+      end
+    end
+
+    context 'moved from' do
+      let(:direction) { :from }
+
+      it_behaves_like 'cross project mentionable'
+
+      it 'should notify about noteable being moved from' do
+        expect(subject.note).to match /Moved from/
+      end
+    end
+
+    context 'invalid direction' do
+      let(:direction) { :invalid }
+
+      it 'should raise error' do
+        expect { subject }.to raise_error StandardError, /Invalid direction/
+      end
+    end
+  end
+
   include JiraServiceHelper
 
   describe 'JIRA integration' do

spec/workers/repository_fork_worker_spec.rb

@@ -3,12 +3,17 @@ require 'spec_helper'
 describe RepositoryForkWorker do
   let(:project) { create(:project) }
   let(:fork_project) { create(:project, forked_from_project: project) }
+  let(:shell) { Gitlab::Shell.new }
 
   subject { RepositoryForkWorker.new }
 
+  before do
+    allow(subject).to receive(:gitlab_shell).and_return(shell)
+  end
+
   describe "#perform" do
     it "creates a new repository from a fork" do
-      expect_any_instance_of(Gitlab::Shell).to receive(:fork_repository).with(
+      expect(shell).to receive(:fork_repository).with(
         project.path_with_namespace,
         fork_project.namespace.path
       ).and_return(true)
@@ -19,20 +24,26 @@ describe RepositoryForkWorker do
         fork_project.namespace.path)
     end
 
-    it 'flushes the empty caches' do
-      expect_any_instance_of(Gitlab::Shell).to receive(:fork_repository).
+    it 'flushes various caches' do
+      expect(shell).to receive(:fork_repository).
         with(project.path_with_namespace, fork_project.namespace.path).
         and_return(true)
 
       expect_any_instance_of(Repository).to receive(:expire_emptiness_caches).
         and_call_original
 
+      expect_any_instance_of(Repository).to receive(:expire_exists_cache).
+        and_call_original
+
       subject.perform(project.id, project.path_with_namespace,
                       fork_project.namespace.path)
     end
 
     it "handles bad fork" do
-      expect_any_instance_of(Gitlab::Shell).to receive(:fork_repository).and_return(false)
+      expect(shell).to receive(:fork_repository).and_return(false)
+
+      expect(subject.logger).to receive(:error)
+
       subject.perform(
         project.id,
         project.path_with_namespace,