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Block has too many lines. [37/25]
Open

Gem::Specification.new do |spec|
  spec.name          = 'dumpman'
  spec.version       = Dumpman::VERSION
  spec.authors       = ['rafael']
  spec.email         = ['skcc321@gmail.com']
Severity: Minor
Found in dumpman.gemspec by rubocop

This cop checks if the length of a block exceeds some maximum value. Comment lines can optionally be ignored. The maximum allowed length is configurable. The cop can be configured to ignore blocks passed to certain methods.

Block has too many lines. [34/25]
Open

namespace :db do
  config = File.open(Rails.root.join('config', 'initializers', 'dumpman.rb')).read
  eval(config)

  Dumpman.connection_names.each do |name|
Severity: Minor
Found in lib/tasks/db.rake by rubocop

This cop checks if the length of a block exceeds some maximum value. Comment lines can optionally be ignored. The maximum allowed length is configurable. The cop can be configured to ignore blocks passed to certain methods.

Complex method namespace#db (24.7)
Open

namespace :db do
  config = File.open(Rails.root.join('config', 'initializers', 'dumpman.rb')).read
  eval(config)

  Dumpman.connection_names.each do |name|
Severity: Minor
Found in lib/tasks/db.rake by flog

Flog calculates the ABC score for methods. The ABC score is based on assignments, branches (method calls), and conditions.

You can read more about ABC metrics or the flog tool

Dumpman::Commandor has no descriptive comment
Open

  module Commandor
Severity: Minor
Found in lib/dumpman/comandor.rb by reek

Classes and modules are the units of reuse and release. It is therefore considered good practice to annotate every class and module with a brief comment outlining its responsibilities.

Example

Given

class Dummy
  # Do things...
end

Reek would emit the following warning:

test.rb -- 1 warning:
  [1]:Dummy has no descriptive comment (IrresponsibleModule)

Fixing this is simple - just an explaining comment:

# The Dummy class is responsible for ...
class Dummy
  # Do things...
end

Dumpman::Connection assumes too much for instance variable '@app_env'
Open

  class Connection
Severity: Minor
Found in lib/dumpman/connection.rb by reek

Classes should not assume that instance variables are set or present outside of the current class definition.

Good:

class Foo
  def initialize
    @bar = :foo
  end

  def foo?
    @bar == :foo
  end
end

Good as well:

class Foo
  def foo?
    bar == :foo
  end

  def bar
    @bar ||= :foo
  end
end

Bad:

class Foo
  def go_foo!
    @bar = :foo
  end

  def foo?
    @bar == :foo
  end
end

Example

Running Reek on:

class Dummy
  def test
    @ivar
  end
end

would report:

[1]:InstanceVariableAssumption: Dummy assumes too much for instance variable @ivar

Note that this example would trigger this smell warning as well:

class Parent
  def initialize(omg)
    @omg = omg
  end
end

class Child < Parent
  def foo
    @omg
  end
end

The way to address the smell warning is that you should create an attr_reader to use @omg in the subclass and not access @omg directly like this:

class Parent
  attr_reader :omg

  def initialize(omg)
    @omg = omg
  end
end

class Child < Parent
  def foo
    omg
  end
end

Directly accessing instance variables is considered a smell because it breaks encapsulation and makes it harder to reason about code.

If you don't want to expose those methods as public API just make them private like this:

class Parent
  def initialize(omg)
    @omg = omg
  end

  private
  attr_reader :omg
end

class Child < Parent
  def foo
    omg
  end
end

Current Support in Reek

An instance variable must:

  • be set in the constructor
  • or be accessed through a method with lazy initialization / memoization.

If not, Instance Variable Assumption will be reported.

Dumpman declares the class variable '@@connections'
Open

  @@connections = []
Severity: Minor
Found in lib/dumpman.rb by reek

Class variables form part of the global runtime state, and as such make it easy for one part of the system to accidentally or inadvertently depend on another part of the system. So the system becomes more prone to problems where changing something over here breaks something over there. In particular, class variables can make it hard to set up tests (because the context of the test includes all global state).

For a detailed explanation, check out this article

Example

Given

class Dummy
  @@class_variable = :whatever
end

Reek would emit the following warning:

reek test.rb

test.rb -- 1 warning:
  [2]:Dummy declares the class variable @@class_variable (ClassVariable)

Getting rid of the smell

You can use class-instance variable to mitigate the problem (as also suggested in the linked article above):

class Dummy
  @class_variable = :whatever
end

Dumpman::Connection assumes too much for instance variable '@app_path'
Open

  class Connection
Severity: Minor
Found in lib/dumpman/connection.rb by reek

Classes should not assume that instance variables are set or present outside of the current class definition.

Good:

class Foo
  def initialize
    @bar = :foo
  end

  def foo?
    @bar == :foo
  end
end

Good as well:

class Foo
  def foo?
    bar == :foo
  end

  def bar
    @bar ||= :foo
  end
end

Bad:

class Foo
  def go_foo!
    @bar = :foo
  end

  def foo?
    @bar == :foo
  end
end

Example

Running Reek on:

class Dummy
  def test
    @ivar
  end
end

would report:

[1]:InstanceVariableAssumption: Dummy assumes too much for instance variable @ivar

Note that this example would trigger this smell warning as well:

class Parent
  def initialize(omg)
    @omg = omg
  end
end

class Child < Parent
  def foo
    @omg
  end
end

The way to address the smell warning is that you should create an attr_reader to use @omg in the subclass and not access @omg directly like this:

class Parent
  attr_reader :omg

  def initialize(omg)
    @omg = omg
  end
end

class Child < Parent
  def foo
    omg
  end
end

Directly accessing instance variables is considered a smell because it breaks encapsulation and makes it harder to reason about code.

If you don't want to expose those methods as public API just make them private like this:

class Parent
  def initialize(omg)
    @omg = omg
  end

  private
  attr_reader :omg
end

class Child < Parent
  def foo
    omg
  end
end

Current Support in Reek

An instance variable must:

  • be set in the constructor
  • or be accessed through a method with lazy initialization / memoization.

If not, Instance Variable Assumption will be reported.

Dumpman has no descriptive comment
Open

module Dumpman
Severity: Minor
Found in lib/dumpman.rb by reek

Classes and modules are the units of reuse and release. It is therefore considered good practice to annotate every class and module with a brief comment outlining its responsibilities.

Example

Given

class Dummy
  # Do things...
end

Reek would emit the following warning:

test.rb -- 1 warning:
  [1]:Dummy has no descriptive comment (IrresponsibleModule)

Fixing this is simple - just an explaining comment:

# The Dummy class is responsible for ...
class Dummy
  # Do things...
end

Dumpman::Adapters::Pg has no descriptive comment
Open

    class Pg < Base
Severity: Minor
Found in lib/dumpman/adapters/pg.rb by reek

Classes and modules are the units of reuse and release. It is therefore considered good practice to annotate every class and module with a brief comment outlining its responsibilities.

Example

Given

class Dummy
  # Do things...
end

Reek would emit the following warning:

test.rb -- 1 warning:
  [1]:Dummy has no descriptive comment (IrresponsibleModule)

Fixing this is simple - just an explaining comment:

# The Dummy class is responsible for ...
class Dummy
  # Do things...
end

Dumpman::Database has no descriptive comment
Open

  module Database
Severity: Minor
Found in lib/dumpman/database.rb by reek

Classes and modules are the units of reuse and release. It is therefore considered good practice to annotate every class and module with a brief comment outlining its responsibilities.

Example

Given

class Dummy
  # Do things...
end

Reek would emit the following warning:

test.rb -- 1 warning:
  [1]:Dummy has no descriptive comment (IrresponsibleModule)

Fixing this is simple - just an explaining comment:

# The Dummy class is responsible for ...
class Dummy
  # Do things...
end

Dumpman::Executor has no descriptive comment
Open

  module Executor
Severity: Minor
Found in lib/dumpman/executor.rb by reek

Classes and modules are the units of reuse and release. It is therefore considered good practice to annotate every class and module with a brief comment outlining its responsibilities.

Example

Given

class Dummy
  # Do things...
end

Reek would emit the following warning:

test.rb -- 1 warning:
  [1]:Dummy has no descriptive comment (IrresponsibleModule)

Fixing this is simple - just an explaining comment:

# The Dummy class is responsible for ...
class Dummy
  # Do things...
end

DumpmanGenerator has no descriptive comment
Open

class DumpmanGenerator < Rails::Generators::Base
Severity: Minor
Found in lib/generators/dumpman/dumpman_generator.rb by reek

Classes and modules are the units of reuse and release. It is therefore considered good practice to annotate every class and module with a brief comment outlining its responsibilities.

Example

Given

class Dummy
  # Do things...
end

Reek would emit the following warning:

test.rb -- 1 warning:
  [1]:Dummy has no descriptive comment (IrresponsibleModule)

Fixing this is simple - just an explaining comment:

# The Dummy class is responsible for ...
class Dummy
  # Do things...
end

Dumpman::Railtie has no descriptive comment
Open

  class Railtie < ::Rails::Railtie
Severity: Minor
Found in lib/dumpman/railtie.rb by reek

Classes and modules are the units of reuse and release. It is therefore considered good practice to annotate every class and module with a brief comment outlining its responsibilities.

Example

Given

class Dummy
  # Do things...
end

Reek would emit the following warning:

test.rb -- 1 warning:
  [1]:Dummy has no descriptive comment (IrresponsibleModule)

Fixing this is simple - just an explaining comment:

# The Dummy class is responsible for ...
class Dummy
  # Do things...
end

Dumpman declares the class variable '@@dump_folder'
Open

  @@dump_folder = '.'
  @@dump_file_name = 'dumpman.sql.gz'
  @@connections = []

  class << self
Severity: Minor
Found in lib/dumpman.rb by reek

Class variables form part of the global runtime state, and as such make it easy for one part of the system to accidentally or inadvertently depend on another part of the system. So the system becomes more prone to problems where changing something over here breaks something over there. In particular, class variables can make it hard to set up tests (because the context of the test includes all global state).

For a detailed explanation, check out this article

Example

Given

class Dummy
  @@class_variable = :whatever
end

Reek would emit the following warning:

reek test.rb

test.rb -- 1 warning:
  [2]:Dummy declares the class variable @@class_variable (ClassVariable)

Getting rid of the smell

You can use class-instance variable to mitigate the problem (as also suggested in the linked article above):

class Dummy
  @class_variable = :whatever
end

Dumpman::Connection assumes too much for instance variable '@docker_image'
Open

  class Connection
Severity: Minor
Found in lib/dumpman/connection.rb by reek

Classes should not assume that instance variables are set or present outside of the current class definition.

Good:

class Foo
  def initialize
    @bar = :foo
  end

  def foo?
    @bar == :foo
  end
end

Good as well:

class Foo
  def foo?
    bar == :foo
  end

  def bar
    @bar ||= :foo
  end
end

Bad:

class Foo
  def go_foo!
    @bar = :foo
  end

  def foo?
    @bar == :foo
  end
end

Example

Running Reek on:

class Dummy
  def test
    @ivar
  end
end

would report:

[1]:InstanceVariableAssumption: Dummy assumes too much for instance variable @ivar

Note that this example would trigger this smell warning as well:

class Parent
  def initialize(omg)
    @omg = omg
  end
end

class Child < Parent
  def foo
    @omg
  end
end

The way to address the smell warning is that you should create an attr_reader to use @omg in the subclass and not access @omg directly like this:

class Parent
  attr_reader :omg

  def initialize(omg)
    @omg = omg
  end
end

class Child < Parent
  def foo
    omg
  end
end

Directly accessing instance variables is considered a smell because it breaks encapsulation and makes it harder to reason about code.

If you don't want to expose those methods as public API just make them private like this:

class Parent
  def initialize(omg)
    @omg = omg
  end

  private
  attr_reader :omg
end

class Child < Parent
  def foo
    omg
  end
end

Current Support in Reek

An instance variable must:

  • be set in the constructor
  • or be accessed through a method with lazy initialization / memoization.

If not, Instance Variable Assumption will be reported.

Dumpman::Connection assumes too much for instance variable '@fetch_strategy'
Open

  class Connection
Severity: Minor
Found in lib/dumpman/connection.rb by reek

Classes should not assume that instance variables are set or present outside of the current class definition.

Good:

class Foo
  def initialize
    @bar = :foo
  end

  def foo?
    @bar == :foo
  end
end

Good as well:

class Foo
  def foo?
    bar == :foo
  end

  def bar
    @bar ||= :foo
  end
end

Bad:

class Foo
  def go_foo!
    @bar = :foo
  end

  def foo?
    @bar == :foo
  end
end

Example

Running Reek on:

class Dummy
  def test
    @ivar
  end
end

would report:

[1]:InstanceVariableAssumption: Dummy assumes too much for instance variable @ivar

Note that this example would trigger this smell warning as well:

class Parent
  def initialize(omg)
    @omg = omg
  end
end

class Child < Parent
  def foo
    @omg
  end
end

The way to address the smell warning is that you should create an attr_reader to use @omg in the subclass and not access @omg directly like this:

class Parent
  attr_reader :omg

  def initialize(omg)
    @omg = omg
  end
end

class Child < Parent
  def foo
    omg
  end
end

Directly accessing instance variables is considered a smell because it breaks encapsulation and makes it harder to reason about code.

If you don't want to expose those methods as public API just make them private like this:

class Parent
  def initialize(omg)
    @omg = omg
  end

  private
  attr_reader :omg
end

class Child < Parent
  def foo
    omg
  end
end

Current Support in Reek

An instance variable must:

  • be set in the constructor
  • or be accessed through a method with lazy initialization / memoization.

If not, Instance Variable Assumption will be reported.

Dumpman::Executor#rake calls 'Rake::Task["db:#{command}"]' 2 times
Open

        Rake::Task["db:#{command}"].reenable
        Rake::Task["db:#{command}"].invoke
Severity: Minor
Found in lib/dumpman/executor.rb by reek

Duplication occurs when two fragments of code look nearly identical, or when two fragments of code have nearly identical effects at some conceptual level.

Reek implements a check for Duplicate Method Call.

Example

Here's a very much simplified and contrived example. The following method will report a warning:

def double_thing()
  @other.thing + @other.thing
end

One quick approach to silence Reek would be to refactor the code thus:

def double_thing()
  thing = @other.thing
  thing + thing
end

A slightly different approach would be to replace all calls of double_thing by calls to @other.double_thing:

class Other
  def double_thing()
    thing + thing
  end
end

The approach you take will depend on balancing other factors in your code.

Dumpman::Connection has no descriptive comment
Open

  class Connection
Severity: Minor
Found in lib/dumpman/connection.rb by reek

Classes and modules are the units of reuse and release. It is therefore considered good practice to annotate every class and module with a brief comment outlining its responsibilities.

Example

Given

class Dummy
  # Do things...
end

Reek would emit the following warning:

test.rb -- 1 warning:
  [1]:Dummy has no descriptive comment (IrresponsibleModule)

Fixing this is simple - just an explaining comment:

# The Dummy class is responsible for ...
class Dummy
  # Do things...
end

Dumpman declares the class variable '@@dump_file_name'
Open

  @@dump_file_name = 'dumpman.sql.gz'
  @@connections = []

  class << self
    def setup(&block)
Severity: Minor
Found in lib/dumpman.rb by reek

Class variables form part of the global runtime state, and as such make it easy for one part of the system to accidentally or inadvertently depend on another part of the system. So the system becomes more prone to problems where changing something over here breaks something over there. In particular, class variables can make it hard to set up tests (because the context of the test includes all global state).

For a detailed explanation, check out this article

Example

Given

class Dummy
  @@class_variable = :whatever
end

Reek would emit the following warning:

reek test.rb

test.rb -- 1 warning:
  [2]:Dummy declares the class variable @@class_variable (ClassVariable)

Getting rid of the smell

You can use class-instance variable to mitigate the problem (as also suggested in the linked article above):

class Dummy
  @class_variable = :whatever
end

Dumpman::Adapters::Base has no descriptive comment
Open

    class Base
Severity: Minor
Found in lib/dumpman/adapters/base.rb by reek

Classes and modules are the units of reuse and release. It is therefore considered good practice to annotate every class and module with a brief comment outlining its responsibilities.

Example

Given

class Dummy
  # Do things...
end

Reek would emit the following warning:

test.rb -- 1 warning:
  [1]:Dummy has no descriptive comment (IrresponsibleModule)

Fixing this is simple - just an explaining comment:

# The Dummy class is responsible for ...
class Dummy
  # Do things...
end
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