ManageIQ/manageiq

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app/models/metric/ci_mixin.rb

Summary

Maintainability
C
1 day
Test Coverage

Method performances_maintains_value_for_duration? has a Cognitive Complexity of 72 (exceeds 11 allowed). Consider refactoring.
Open

  def performances_maintains_value_for_duration?(options)
    _log.info("options: #{options.inspect}")
    raise _("Argument must be an options hash") unless options.kind_of?(Hash)
    column = options[:column]
    value = options[:value].to_f
Severity: Minor
Found in app/models/metric/ci_mixin.rb - About 1 day 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 performances_maintains_value_for_duration? is too high. [48/11]
Open

  def performances_maintains_value_for_duration?(options)
    _log.info("options: #{options.inspect}")
    raise _("Argument must be an options hash") unless options.kind_of?(Hash)
    column = options[:column]
    value = options[:value].to_f
Severity: Minor
Found in app/models/metric/ci_mixin.rb by rubocop

This cop 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.

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

        _log.info("Matched?: true,  Index: #{i}, Window start index: #{i - recs_in_window}, matches_in_window: #{matches_in_window}, ts: #{rec.timestamp}, #{column}: #{rec.send(column)}") if debug_trace
Severity: Minor
Found in app/models/metric/ci_mixin.rb and 1 other location - About 20 mins to fix
app/models/metric/ci_mixin.rb on lines 213..213

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 27.

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

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

        _log.info("Matched?: false, Index: #{i}, Window start index: #{i - recs_in_window}, matches_in_window: #{matches_in_window}, ts: #{rec.timestamp}, #{column}: #{rec.send(column)}") if debug_trace
Severity: Minor
Found in app/models/metric/ci_mixin.rb and 1 other location - About 20 mins to fix
app/models/metric/ci_mixin.rb on lines 210..210

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 27.

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

Avoid when branches without a body.
Open

      when :none
Severity: Minor
Found in app/models/metric/ci_mixin.rb by rubocop

This cop checks for the presence of when branches without a body.

Example:

# bad

case foo
when bar then 1
when baz then # nothing
end

Example:

# good

case foo
when bar then 1
when baz then 2
end

There are no issues that match your filters.

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