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current/deps/v8/tools/run-clang-tidy.py

Summary

Maintainability
F
3 wks
Test Coverage

Function main has a Cognitive Complexity of 29 (exceeds 5 allowed). Consider refactoring.
Open

def main():
  parser = GetOptions()
  (options, _) = parser.parse_args()

  if options.threads is not None:
Severity: Minor
Found in current/deps/v8/tools/run-clang-tidy.py - About 4 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

File run-clang-tidy.py has 339 lines of code (exceeds 250 allowed). Consider refactoring.
Open

#!/usr/bin/env python
#
# Copyright 2018 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
Severity: Minor
Found in current/deps/v8/tools/run-clang-tidy.py - About 4 hrs to fix

    Function ClangTidyRunFull has a Cognitive Complexity of 20 (exceeds 5 allowed). Consider refactoring.
    Open

    def ClangTidyRunFull(build_folder, skip_output_filter, checks, auto_fix):
  """
  Run clang-tidy on the full codebase and print warnings.
  """
  extra_args = []
    Severity: Minor
    Found in current/deps/v8/tools/run-clang-tidy.py - 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

    Function ClangTidyRunSingleFile has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.
    Open

    def ClangTidyRunSingleFile(build_folder, filename_to_check, auto_fix,
                           line_ranges=[]):
  """
  Run clang-tidy on a single file.
  """
    Severity: Minor
    Found in current/deps/v8/tools/run-clang-tidy.py - 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

    Avoid deeply nested control flow statements.
    Open

              if match is not []:
            line_ranges.append(match)
        ClangTidyRunSingleFile(options.build_folder,
    Severity: Major
    Found in current/deps/v8/tools/run-clang-tidy.py - About 45 mins to fix

      Function ClangTidyRunDiff has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
      Open

      def ClangTidyRunDiff(build_folder, diff_branch, auto_fix):
  """
  Run clang-tidy on the diff between current and the diff_branch.
  """
  if diff_branch is None:
      Severity: Minor
      Found in current/deps/v8/tools/run-clang-tidy.py - About 35 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

      Function ClangTidyRunAggregate has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
      Open

      def ClangTidyRunAggregate(build_folder, print_files):
  """
  Run clang-tidy on the full codebase and aggregate warnings into categories.
  """
  with open(os.devnull, 'w') as DEVNULL:
      Severity: Minor
      Found in current/deps/v8/tools/run-clang-tidy.py - 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

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

      Severity: Major
      Found in current/deps/v8/tools/run-clang-tidy.py and 1 other location - About 3 wks to fix
      lts/deps/v8/tools/run-clang-tidy.py on lines 0..424

      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 2332.

      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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