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crowbar_framework/app/models/dns_service.rb

Summary

Maintainability
C
1 day
Test Coverage

Method apply_role_pre_chef_call has a Cognitive Complexity of 25 (exceeds 5 allowed). Consider refactoring.
Open

  def apply_role_pre_chef_call(old_role, role, all_nodes)
    Rails.logger.debug("DNS apply_role_pre_chef_call: entering #{all_nodes.inspect}")
    return if all_nodes.empty?

    tnodes = role.override_attributes["dns"]["elements"]["dns-server"]
Severity: Minor
Found in crowbar_framework/app/models/dns_service.rb - About 3 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

Method apply_role_pre_chef_call has 54 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def apply_role_pre_chef_call(old_role, role, all_nodes)
    Rails.logger.debug("DNS apply_role_pre_chef_call: entering #{all_nodes.inspect}")
    return if all_nodes.empty?

    tnodes = role.override_attributes["dns"]["elements"]["dns-server"]
Severity: Major
Found in crowbar_framework/app/models/dns_service.rb - About 2 hrs to fix

Method validate_proposal_after_save has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
Open

  def validate_proposal_after_save proposal
    server_role = proposal["deployment"]["dns"]["elements"]["dns-server"]
    nameservers = proposal["attributes"]["dns"]["nameservers"]

    if server_role.blank? && nameservers.blank?
Severity: Minor
Found in crowbar_framework/app/models/dns_service.rb - About 1 hr 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

Method save_config_to_databag has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

  def save_config_to_databag(old_role, role, server_nodes = nil)
    if role.nil?
      config = nil
    else
      if server_nodes.nil?
Severity: Minor
Found in crowbar_framework/app/models/dns_service.rb - About 55 mins 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

Method skip_unchanged_node? has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
Open

  def skip_unchanged_node?(node_name, old_role, new_role)
    # if old_role is nil, then we are applying the barclamp for the first time
    return false if old_role.nil?

    # if the servers have changed, we need to apply
Severity: Minor
Found in crowbar_framework/app/models/dns_service.rb - About 45 mins 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

Avoid too many return statements within this method.
Open

    return false if node_name == @admin_node_name &&
Severity: Major
Found in crowbar_framework/app/models/dns_service.rb - About 30 mins to fix

Avoid too many return statements within this method.
Open

    return false if relevant_attributes_changed_if_roles?(node_name, old_role, new_role,
Severity: Major
Found in crowbar_framework/app/models/dns_service.rb - About 30 mins to fix

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

  class << self
    def role_constraints
      {
        "dns-server" => {
          "unique" => false,
Severity: Minor
Found in crowbar_framework/app/models/dns_service.rb and 1 other location - About 15 mins to fix
crowbar_framework/app/models/provisioner_service.rb on lines 26..40

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 25.

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

Further Reading

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