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ManageIQ/manageiq-providers-vmware

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app/models/manageiq/providers/vmware/cloud_manager/vm/reconfigure.rb

Summary

Maintainability
A
3 hrs
Test Coverage
A
100%

Method validate_config_spec has a Cognitive Complexity of 23 (exceeds 11 allowed). Consider refactoring.
Open

  def validate_config_spec(options)
    if vm_powered_on?
      if options[:number_of_cpus]
        number_of_cpus   = options[:number_of_cpus].to_i
        cores_per_socket = options[:cores_per_socket].to_i
Severity: Minor
Found in app/models/manageiq/providers/vmware/cloud_manager/vm/reconfigure.rb - About 2 hrs to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Cyclomatic complexity for validate_config_spec is too high. [14/11]
Open

  def validate_config_spec(options)
    if vm_powered_on?
      if options[:number_of_cpus]
        number_of_cpus   = options[:number_of_cpus].to_i
        cores_per_socket = options[:cores_per_socket].to_i
Severity: Minor
Found in app/models/manageiq/providers/vmware/cloud_manager/vm/reconfigure.rb by rubocop

Checks that the cyclomatic complexity of methods is not higher than the configured maximum. The cyclomatic complexity is the number of linearly independent paths through a method. The algorithm counts decision points and adds one.

An if statement (or unless or ?:) increases the complexity by one. An else branch does not, since it doesn't add a decision point. The && operator (or keyword and) can be converted to a nested if statement, and ||/or is shorthand for a sequence of ifs, so they also add one. Loops can be said to have an exit condition, so they add one. Blocks that are calls to builtin iteration methods (e.g. `ary.map{...}) also add one, others are ignored.

def each_child_node(*types)               # count begins: 1
  unless block_given?                     # unless: +1
    return to_enum(__method__, *types)

  children.each do |child|                # each{}: +1
    next unless child.is_a?(Node)         # unless: +1

    yield child if types.empty? ||        # if: +1, ||: +1
                   types.include?(child.type)
  end

  self
end                                       # total: 6

Similar blocks of code found in 2 locations. Consider refactoring.
Open

      if options[:number_of_cpus]
        number_of_cpus   = options[:number_of_cpus].to_i
        cores_per_socket = options[:cores_per_socket].to_i
        raise MiqException::MiqVmError, 'CPU Hot-Add not enabled' if number_of_cpus != cpu_total_cores && !cpu_hot_add_enabled
        raise MiqException::MiqVmError, 'CPU Hot-Remove not enabled' if number_of_cpus < cpu_total_cores && !cpu_hot_remove_enabled
Severity: Minor
Found in app/models/manageiq/providers/vmware/cloud_manager/vm/reconfigure.rb and 1 other location - About 55 mins to fix
app/models/manageiq/providers/vmware/infra_manager/vm/reconfigure.rb on lines 56..62

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 45.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

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