sensu-plugins/sensu-plugins-cpu-checks

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Method run has a Cognitive Complexity of 15 (exceeds 5 allowed). Consider refactoring.
Open

  def run
    (cpu_stats_before, cpu_stats_now) = acquire_stats(config[:sleep])

    # Some kernels don't have 'guest' and 'guest_nice' values
    metrics = CPU_METRICS.slice(0, cpu_stats_now.length)
Severity: Minor
Found in bin/check-cpu.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 run has 33 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def run
    (cpu_stats_before, cpu_stats_now) = acquire_stats(config[:sleep])

    # Some kernels don't have 'guest' and 'guest_nice' values
    metrics = CPU_METRICS.slice(0, cpu_stats_now.length)
Severity: Minor
Found in bin/check-cpu.rb - About 1 hr to fix

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

      def run
        cpu_metrics = %w[user nice system idle iowait irq softirq steal guest guest_nice]
        other_metrics = %w[ctxt processes procs_running procs_blocked btime intr]
        cpu_count = 0
    
    
    Severity: Minor
    Found in bin/metrics-cpu.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 run has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
    Open

      def run
        begin
          output = `/usr/bin/numastat`
        rescue Errno::ENOENT => e
          unknown e
    Severity: Minor
    Found in bin/metrics-numastat.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

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

    class MetricsCPUSoftirqs < Sensu::Plugin::Metric::CLI::Graphite
      include SensuPluginsCpuChecks::CommonInterrupts
      option :scheme,
             description: 'Metric naming scheme, text to prepend to metric',
             short: '-s SCHEME',
    Severity: Minor
    Found in bin/metrics-cpu-softirqs.rb and 1 other location - About 45 mins to fix
    bin/metrics-cpu-interrupts.rb on lines 32..47

    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 40.

    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

    class MetricsCPUInterrupts < Sensu::Plugin::Metric::CLI::Graphite
      include SensuPluginsCpuChecks::CommonInterrupts
      option :scheme,
             description: 'Metric naming scheme, text to prepend to metric',
             short: '-s SCHEME',
    Severity: Minor
    Found in bin/metrics-cpu-interrupts.rb and 1 other location - About 45 mins to fix
    bin/metrics-cpu-softirqs.rb on lines 32..47

    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 40.

    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

    Method run has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
    Open

      def run
        timestamp = Time.now.to_i
        usertype = config[:uid] ? 'uid' : 'user'
        pslist = `ps -A -o #{usertype}= -o %cpu= -o %mem=`
    
    
    Severity: Minor
    Found in bin/metrics-user-pct-usage.rb - About 25 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 output_metrics has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
    Open

        def output_metrics(filename)
          regexp = nil
          cpu_list = []
          File.open("#{config[:proc_path]}/#{filename}", 'r').each_line.with_index do |line, index|
            if index.zero?
    Severity: Minor
    Found in lib/sensu-plugins-cpu-checks/common_interrupts.rb - About 25 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

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