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lts/lib/internal/tty.js

Summary

Maintainability
F
1 wk
Test Coverage

Function getColorDepth has a Cognitive Complexity of 39 (exceeds 5 allowed). Consider refactoring.
Open

function getColorDepth(env = process.env) {
  // Use level 0-3 to support the same levels as `chalk` does. This is done for
  // consistency throughout the ecosystem.
  if (env.FORCE_COLOR !== undefined) {
    switch (env.FORCE_COLOR) {
Severity: Minor
Found in lts/lib/internal/tty.js - About 5 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 getColorDepth has 83 lines of code (exceeds 25 allowed). Consider refactoring.
Open

function getColorDepth(env = process.env) {
  // Use level 0-3 to support the same levels as `chalk` does. This is done for
  // consistency throughout the ecosystem.
  if (env.FORCE_COLOR !== undefined) {
    switch (env.FORCE_COLOR) {
Severity: Major
Found in lts/lib/internal/tty.js - About 3 hrs to fix

    Function hasColors has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
    Open

    function hasColors(count, env) {
  if (env === undefined &&
      (count === undefined || (typeof count === 'object' && count !== null))) {
    env = count;
    count = 16;
    Severity: Minor
    Found in lts/lib/internal/tty.js - 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

    Avoid too many return statements within this function.
    Open

          return COLORS_16m;
    Severity: Major
    Found in lts/lib/internal/tty.js - About 30 mins to fix

      Avoid too many return statements within this function.
      Open

              return COLORS_256;
      Severity: Major
      Found in lts/lib/internal/tty.js - About 30 mins to fix

        Avoid too many return statements within this function.
        Open

              return COLORS_256;
        Severity: Major
        Found in lts/lib/internal/tty.js - About 30 mins to fix

          Avoid too many return statements within this function.
          Open

              return /^(9\.(0*[1-9]\d*)\.|\d{2,}\.)/.test(env.TEAMCITY_VERSION) ?
      COLORS_16 : COLORS_2;
          Severity: Major
          Found in lts/lib/internal/tty.js - About 30 mins to fix

            Avoid too many return statements within this function.
            Open

                return COLORS_16m;
            Severity: Major
            Found in lts/lib/internal/tty.js - About 30 mins to fix

              Avoid too many return statements within this function.
              Open

                return COLORS_2;
              Severity: Major
              Found in lts/lib/internal/tty.js - About 30 mins to fix

                Avoid too many return statements within this function.
                Open

                      return COLORS_256;
                Severity: Major
                Found in lts/lib/internal/tty.js - About 30 mins to fix

                  Avoid too many return statements within this function.
                  Open

                      return COLORS_16;
                  Severity: Major
                  Found in lts/lib/internal/tty.js - About 30 mins to fix

                    Avoid too many return statements within this function.
                    Open

                          return TERM_ENVS[termEnv];
                    Severity: Major
                    Found in lts/lib/internal/tty.js - About 30 mins to fix

                      Avoid too many return statements within this function.
                      Open

                          return COLORS_16;
                      Severity: Major
                      Found in lts/lib/internal/tty.js - About 30 mins to fix

                        Avoid too many return statements within this function.
                        Open

                                return COLORS_16;
                        Severity: Major
                        Found in lts/lib/internal/tty.js - About 30 mins to fix

                          Avoid too many return statements within this function.
                          Open

                              return COLORS_256;
                          Severity: Major
                          Found in lts/lib/internal/tty.js - About 30 mins to fix

                            Avoid too many return statements within this function.
                            Open

                                return COLORS_2;
                            Severity: Major
                            Found in lts/lib/internal/tty.js - About 30 mins to fix

                              Avoid too many return statements within this function.
                              Open

                                      return COLORS_16m;
                              Severity: Major
                              Found in lts/lib/internal/tty.js - About 30 mins to fix

                                Avoid too many return statements within this function.
                                Open

                                        return COLORS_256;
                                Severity: Major
                                Found in lts/lib/internal/tty.js - About 30 mins to fix

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

                                  function warnOnDeactivatedColors(env) {
  if (warned)
    return;
  let name = '';
  if (env.NODE_DISABLE_COLORS !== undefined)
                                  Severity: Minor
                                  Found in lts/lib/internal/tty.js - 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

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

                                  function getColorDepth(env = process.env) {
  // Use level 0-3 to support the same levels as `chalk` does. This is done for
  // consistency throughout the ecosystem.
  if (env.FORCE_COLOR !== undefined) {
    switch (env.FORCE_COLOR) {
                                  Severity: Major
                                  Found in lts/lib/internal/tty.js and 1 other location - About 3 days to fix
                                  current/lib/internal/tty.js on lines 102..208

                                  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 584.

                                  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

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

                                  function warnOnDeactivatedColors(env) {
  if (warned)
    return;
  let name = '';
  if (env.NODE_DISABLE_COLORS !== undefined)
                                  Severity: Major
                                  Found in lts/lib/internal/tty.js and 1 other location - About 4 hrs to fix
                                  current/lib/internal/tty.js on lines 77..97

                                  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 123.

                                  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

                                  function hasColors(count, env) {
  if (env === undefined &&
      (count === undefined || (typeof count === 'object' && count !== null))) {
    env = count;
    count = 16;
                                  Severity: Major
                                  Found in lts/lib/internal/tty.js and 1 other location - About 4 hrs to fix
                                  current/lib/internal/tty.js on lines 210..224

                                  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 122.

                                  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

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

                                  const TERM_ENVS = {
  'eterm': COLORS_16,
  'cons25': COLORS_16,
  'console': COLORS_16,
  'cygwin': COLORS_16,
                                  Severity: Major
                                  Found in lts/lib/internal/tty.js and 1 other location - About 3 hrs to fix
                                  current/lib/internal/tty.js on lines 44..63

                                  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 100.

                                  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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