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LibreNMS/Modules/Os.php

Summary

Maintainability
A
45 mins
Test Coverage

Function poll has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
Open

    public function poll(\LibreNMS\OS $os, DataStorageInterface $datastore): void
    {
        $deviceModel = $os->getDevice(); /** @var \App\Models\Device $deviceModel */
        if ($os instanceof OSPolling) {
            $os->pollOS($datastore);
Severity: Minor
Found in LibreNMS/Modules/Os.php - 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

The method poll() has a Cyclomatic Complexity of 10. The configured cyclomatic complexity threshold is 10.
Open

    public function poll(\LibreNMS\OS $os, DataStorageInterface $datastore): void
    {
        $deviceModel = $os->getDevice(); /** @var \App\Models\Device $deviceModel */
        if ($os instanceof OSPolling) {
            $os->pollOS($datastore);
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

CyclomaticComplexity

Since: 0.1

Complexity is determined by the number of decision points in a method plus one for the method entry. The decision points are 'if', 'while', 'for', and 'case labels'. Generally, 1-4 is low complexity, 5-7 indicates moderate complexity, 8-10 is high complexity, and 11+ is very high complexity.

Example

// Cyclomatic Complexity = 11
class Foo {
1   public function example() {
2       if ($a == $b) {
3           if ($a1 == $b1) {
                fiddle();
4           } elseif ($a2 == $b2) {
                fiddle();
            } else {
                fiddle();
            }
5       } elseif ($c == $d) {
6           while ($c == $d) {
                fiddle();
            }
7        } elseif ($e == $f) {
8           for ($n = 0; $n < $h; $n++) {
                fiddle();
            }
        } else {
            switch ($z) {
9               case 1:
                    fiddle();
                    break;
10              case 2:
                    fiddle();
                    break;
11              case 3:
                    fiddle();
                    break;
                default:
                    fiddle();
                    break;
            }
        }
    }
}

Source https://phpmd.org/rules/codesize.html#cyclomaticcomplexity

Avoid using undefined variables such as '$hardware' which will lead to PHP notices.
Open

            $deviceModel->hardware = ($hardware ?? $deviceModel->hardware) ?: null;
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

UndefinedVariable

Since: 2.8.0

Detects when a variable is used that has not been defined before.

Example

class Foo
{
    private function bar()
    {
        // $message is undefined
        echo $message;
    }
}

Source https://phpmd.org/rules/cleancode.html#undefinedvariable

Avoid using undefined variables such as '$features' which will lead to PHP notices.
Open

            $deviceModel->features = ($features ?? $deviceModel->features) ?: null;
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

UndefinedVariable

Since: 2.8.0

Detects when a variable is used that has not been defined before.

Example

class Foo
{
    private function bar()
    {
        // $message is undefined
        echo $message;
    }
}

Source https://phpmd.org/rules/cleancode.html#undefinedvariable

Avoid using undefined variables such as '$version' which will lead to PHP notices.
Open

            $deviceModel->version = ($version ?? $deviceModel->version) ?: null;
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

UndefinedVariable

Since: 2.8.0

Detects when a variable is used that has not been defined before.

Example

class Foo
{
    private function bar()
    {
        // $message is undefined
        echo $message;
    }
}

Source https://phpmd.org/rules/cleancode.html#undefinedvariable

Avoid using undefined variables such as '$serial' which will lead to PHP notices.
Open

            $deviceModel->serial = ($serial ?? $deviceModel->serial) ?: null;
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

UndefinedVariable

Since: 2.8.0

Detects when a variable is used that has not been defined before.

Example

class Foo
{
    private function bar()
    {
        // $message is undefined
        echo $message;
    }
}

Source https://phpmd.org/rules/cleancode.html#undefinedvariable

The method poll uses an else expression. Else clauses are basically not necessary and you can simplify the code by not using them.
Open

        } else {
            $device = $os->getDeviceArray();
            $location = null;

            if (is_file(base_path('/includes/polling/os/' . $device['os'] . '.inc.php'))) {
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

ElseExpression

Since: 1.4.0

An if expression with an else branch is basically not necessary. You can rewrite the conditions in a way that the else clause is not necessary and the code becomes simpler to read. To achieve this, use early return statements, though you may need to split the code it several smaller methods. For very simple assignments you could also use the ternary operations.

Example

class Foo
{
    public function bar($flag)
    {
        if ($flag) {
            // one branch
        } else {
            // another branch
        }
    }
}

Source https://phpmd.org/rules/cleancode.html#elseexpression

Avoid unused local variables such as '$version'.
Open

            $deviceModel->version = ($version ?? $deviceModel->version) ?: null;
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

UnusedLocalVariable

Since: 0.2

Detects when a local variable is declared and/or assigned, but not used.

Example

class Foo {
    public function doSomething()
    {
        $i = 5; // Unused
    }
}

Source https://phpmd.org/rules/unusedcode.html#unusedlocalvariable

Avoid unused local variables such as '$features'.
Open

            $deviceModel->features = ($features ?? $deviceModel->features) ?: null;
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

UnusedLocalVariable

Since: 0.2

Detects when a local variable is declared and/or assigned, but not used.

Example

class Foo {
    public function doSomething()
    {
        $i = 5; // Unused
    }
}

Source https://phpmd.org/rules/unusedcode.html#unusedlocalvariable

Avoid unused local variables such as '$serial'.
Open

            $deviceModel->serial = ($serial ?? $deviceModel->serial) ?: null;
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

UnusedLocalVariable

Since: 0.2

Detects when a local variable is declared and/or assigned, but not used.

Example

class Foo {
    public function doSomething()
    {
        $i = 5; // Unused
    }
}

Source https://phpmd.org/rules/unusedcode.html#unusedlocalvariable

Avoid unused local variables such as '$hardware'.
Open

            $deviceModel->hardware = ($hardware ?? $deviceModel->hardware) ?: null;
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

UnusedLocalVariable

Since: 0.2

Detects when a local variable is declared and/or assigned, but not used.

Example

class Foo {
    public function doSomething()
    {
        $i = 5; // Unused
    }
}

Source https://phpmd.org/rules/unusedcode.html#unusedlocalvariable

Avoid variables with short names like $os. Configured minimum length is 3.
Open

    private function sysContact(\LibreNMS\OS $os): void
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

ShortVariable

Since: 0.2

Detects when a field, local, or parameter has a very short name.

Example

class Something {
    private $q = 15; // VIOLATION - Field
    public static function main( array $as ) { // VIOLATION - Formal
        $r = 20 + $this->q; // VIOLATION - Local
        for (int $i = 0; $i < 10; $i++) { // Not a Violation (inside FOR)
            $r += $this->q;
        }
    }
}

Source https://phpmd.org/rules/naming.html#shortvariable

Avoid classes with short names like Os. Configured minimum length is 3.
Open

class Os implements Module
{
    /**
     * @inheritDoc
     */
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

ShortClassName

Since: 2.9

Detects when classes or interfaces have a very short name.

Example

class Fo {

}

interface Fo {

}

Source https://phpmd.org/rules/naming.html#shortclassname

Avoid variables with short names like $os. Configured minimum length is 3.
Open

    public function shouldDiscover(\LibreNMS\OS $os, ModuleStatus $status): bool
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

ShortVariable

Since: 0.2

Detects when a field, local, or parameter has a very short name.

Example

class Something {
    private $q = 15; // VIOLATION - Field
    public static function main( array $as ) { // VIOLATION - Formal
        $r = 20 + $this->q; // VIOLATION - Local
        for (int $i = 0; $i < 10; $i++) { // Not a Violation (inside FOR)
            $r += $this->q;
        }
    }
}

Source https://phpmd.org/rules/naming.html#shortvariable

Avoid variables with short names like $os. Configured minimum length is 3.
Open

    public function discover(\LibreNMS\OS $os): void
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

ShortVariable

Since: 0.2

Detects when a field, local, or parameter has a very short name.

Example

class Something {
    private $q = 15; // VIOLATION - Field
    public static function main( array $as ) { // VIOLATION - Formal
        $r = 20 + $this->q; // VIOLATION - Local
        for (int $i = 0; $i < 10; $i++) { // Not a Violation (inside FOR)
            $r += $this->q;
        }
    }
}

Source https://phpmd.org/rules/naming.html#shortvariable

Avoid variables with short names like $os. Configured minimum length is 3.
Open

    public function poll(\LibreNMS\OS $os, DataStorageInterface $datastore): void
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

ShortVariable

Since: 0.2

Detects when a field, local, or parameter has a very short name.

Example

class Something {
    private $q = 15; // VIOLATION - Field
    public static function main( array $as ) { // VIOLATION - Formal
        $r = 20 + $this->q; // VIOLATION - Local
        for (int $i = 0; $i < 10; $i++) { // Not a Violation (inside FOR)
            $r += $this->q;
        }
    }
}

Source https://phpmd.org/rules/naming.html#shortvariable

Avoid variables with short names like $os. Configured minimum length is 3.
Open

    private function handleChanges(\LibreNMS\OS $os): void
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

ShortVariable

Since: 0.2

Detects when a field, local, or parameter has a very short name.

Example

class Something {
    private $q = 15; // VIOLATION - Field
    public static function main( array $as ) { // VIOLATION - Formal
        $r = 20 + $this->q; // VIOLATION - Local
        for (int $i = 0; $i < 10; $i++) { // Not a Violation (inside FOR)
            $r += $this->q;
        }
    }
}

Source https://phpmd.org/rules/naming.html#shortvariable

Avoid variables with short names like $os. Configured minimum length is 3.
Open

    public function shouldPoll(\LibreNMS\OS $os, ModuleStatus $status): bool
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

ShortVariable

Since: 0.2

Detects when a field, local, or parameter has a very short name.

Example

class Something {
    private $q = 15; // VIOLATION - Field
    public static function main( array $as ) { // VIOLATION - Formal
        $r = 20 + $this->q; // VIOLATION - Local
        for (int $i = 0; $i < 10; $i++) { // Not a Violation (inside FOR)
            $r += $this->q;
        }
    }
}

Source https://phpmd.org/rules/naming.html#shortvariable

Avoid variables with short names like $os. Configured minimum length is 3.
Open

    private function updateLocation(\LibreNMS\OS $os): void
Severity: Minor
Found in LibreNMS/Modules/Os.php by phpmd

ShortVariable

Since: 0.2

Detects when a field, local, or parameter has a very short name.

Example

class Something {
    private $q = 15; // VIOLATION - Field
    public static function main( array $as ) { // VIOLATION - Formal
        $r = 20 + $this->q; // VIOLATION - Local
        for (int $i = 0; $i < 10; $i++) { // Not a Violation (inside FOR)
            $r += $this->q;
        }
    }
}

Source https://phpmd.org/rules/naming.html#shortvariable

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