Function execute
has a Cognitive Complexity of 35 (exceeds 5 allowed). Consider refactoring. Open
protected function execute(InputInterface $input, OutputInterface $output)
{
$maxBackups = $input->getOption('max-backups') ?: Environment::get('DEFAULT_MAX_BACKUPS', 0);
if (isset($maxBackups) && filter_var($maxBackups, FILTER_VALIDATE_INT) === false) {
$this->io->error('Max number of backups to keep by instance is not a number');
- Read upRead up
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 execute
has 76 lines of code (exceeds 25 allowed). Consider refactoring. Open
protected function execute(InputInterface $input, OutputInterface $output)
{
$maxBackups = $input->getOption('max-backups') ?: Environment::get('DEFAULT_MAX_BACKUPS', 0);
if (isset($maxBackups) && filter_var($maxBackups, FILTER_VALIDATE_INT) === false) {
$this->io->error('Max number of backups to keep by instance is not a number');
Method interact
has 43 lines of code (exceeds 25 allowed). Consider refactoring. Open
protected function interact(InputInterface $input, OutputInterface $output)
{
$this->io->note('Backups are only available on Local and SSH instances.');
$instances = CommandHelper::getInstances('all', true);
Method configure
has 34 lines of code (exceeds 25 allowed). Consider refactoring. Open
protected function configure()
{
parent::configure();
$this
Avoid too many return
statements within this method. Open
return filter_var(trim($email), FILTER_VALIDATE_EMAIL);
Avoid too many return
statements within this method. Open
return implode(',', $emails);
The method execute() has an NPath complexity of 7056. The configured NPath complexity threshold is 200. Open
protected function execute(InputInterface $input, OutputInterface $output)
{
$maxBackups = $input->getOption('max-backups') ?: Environment::get('DEFAULT_MAX_BACKUPS', 0);
if (isset($maxBackups) && filter_var($maxBackups, FILTER_VALIDATE_INT) === false) {
$this->io->error('Max number of backups to keep by instance is not a number');
- Read upRead up
- Exclude checks
NPathComplexity
Since: 0.1
The NPath complexity of a method is the number of acyclic execution paths through that method. A threshold of 200 is generally considered the point where measures should be taken to reduce complexity.
Example
class Foo {
function bar() {
// lots of complicated code
}
}
Source https://phpmd.org/rules/codesize.html#npathcomplexity
The method interact() has a Cyclomatic Complexity of 10. The configured cyclomatic complexity threshold is 10. Open
protected function interact(InputInterface $input, OutputInterface $output)
{
$this->io->note('Backups are only available on Local and SSH instances.');
$instances = CommandHelper::getInstances('all', true);
- Read upRead up
- Exclude checks
CyclomaticComplexity
Since: 0.1
Complexity is determined by the number of decision points in a method plus one for the method entry. The decision points are 'if', 'while', 'for', and 'case labels'. Generally, 1-4 is low complexity, 5-7 indicates moderate complexity, 8-10 is high complexity, and 11+ is very high complexity.
Example
// Cyclomatic Complexity = 11
class Foo {
1 public function example() {
2 if ($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
The method execute() has a Cyclomatic Complexity of 20. The configured cyclomatic complexity threshold is 10. Open
protected function execute(InputInterface $input, OutputInterface $output)
{
$maxBackups = $input->getOption('max-backups') ?: Environment::get('DEFAULT_MAX_BACKUPS', 0);
if (isset($maxBackups) && filter_var($maxBackups, FILTER_VALIDATE_INT) === false) {
$this->io->error('Max number of backups to keep by instance is not a number');
- Read upRead up
- Exclude checks
CyclomaticComplexity
Since: 0.1
Complexity is determined by the number of decision points in a method plus one for the method entry. The decision points are 'if', 'while', 'for', and 'case labels'. Generally, 1-4 is low complexity, 5-7 indicates moderate complexity, 8-10 is high complexity, and 11+ is very high complexity.
Example
// Cyclomatic Complexity = 11
class Foo {
1 public function example() {
2 if ($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
Missing class import via use statement (line '150', column '23'). Open
throw new \RuntimeException('No instances defined for backup');
- Read upRead up
- Exclude checks
MissingImport
Since: 2.7.0
Importing all external classes in a file through use statements makes them clearly visible.
Example
function make() {
return new \stdClass();
}
Source http://phpmd.org/rules/cleancode.html#MissingImport
Avoid using static access to class '\TikiManager\Command\Helper\CommandHelper' in method 'interact'. Open
$selectedInstances = CommandHelper::validateInstanceSelection($answer, $instances);
- Read upRead up
- Exclude checks
StaticAccess
Since: 1.4.0
Static access causes unexchangeable dependencies to other classes and leads to hard to test code. Avoid using static access at all costs and instead inject dependencies through the constructor. The only case when static access is acceptable is when used for factory methods.
Example
class Foo
{
public function bar()
{
Bar::baz();
}
}
Source https://phpmd.org/rules/cleancode.html#staticaccess
Avoid using static access to class '\TikiManager\Command\Helper\CommandHelper' in method 'interact'. Open
$instancesInfo = CommandHelper::getInstancesInfo($instances);
- Read upRead up
- Exclude checks
StaticAccess
Since: 1.4.0
Static access causes unexchangeable dependencies to other classes and leads to hard to test code. Avoid using static access at all costs and instead inject dependencies through the constructor. The only case when static access is acceptable is when used for factory methods.
Example
class Foo
{
public function bar()
{
Bar::baz();
}
}
Source https://phpmd.org/rules/cleancode.html#staticaccess
Avoid using static access to class '\TikiManager\Command\Helper\CommandHelper' in method 'execute'. Open
$instances = CommandHelper::getInstances('all', true);
- Read upRead up
- Exclude checks
StaticAccess
Since: 1.4.0
Static access causes unexchangeable dependencies to other classes and leads to hard to test code. Avoid using static access at all costs and instead inject dependencies through the constructor. The only case when static access is acceptable is when used for factory methods.
Example
class Foo
{
public function bar()
{
Bar::baz();
}
}
Source https://phpmd.org/rules/cleancode.html#staticaccess
The method execute uses an else expression. Else clauses are basically not necessary and you can simplify the code by not using them. Open
} else {
$instancesIds = explode(',', $instancesOption);
$selectedInstances = [];
foreach ($instancesIds as $index) {
- Read upRead up
- Exclude checks
ElseExpression
Since: 1.4.0
An if expression with an else branch is basically not necessary. You can rewrite the conditions in a way that the else clause is not necessary and the code becomes simpler to read. To achieve this, use early return statements, though you may need to split the code it several smaller methods. For very simple assignments you could also use the ternary operations.
Example
class Foo
{
public function bar($flag)
{
if ($flag) {
// one branch
} else {
// another branch
}
}
}
Source https://phpmd.org/rules/cleancode.html#elseexpression
Avoid using static access to class '\TikiManager\Command\Helper\CommandHelper' in method 'interact'. Open
$selectedInstances = CommandHelper::validateInstanceSelection($answer, $instances);
- Read upRead up
- Exclude checks
StaticAccess
Since: 1.4.0
Static access causes unexchangeable dependencies to other classes and leads to hard to test code. Avoid using static access at all costs and instead inject dependencies through the constructor. The only case when static access is acceptable is when used for factory methods.
Example
class Foo
{
public function bar()
{
Bar::baz();
}
}
Source https://phpmd.org/rules/cleancode.html#staticaccess
Avoid using static access to class '\TikiManager\Command\Helper\CommandHelper' in method 'interact'. Open
$excludeInstance = implode(',', CommandHelper::getInstanceIds($selectedInstances));
- Read upRead up
- Exclude checks
StaticAccess
Since: 1.4.0
Static access causes unexchangeable dependencies to other classes and leads to hard to test code. Avoid using static access at all costs and instead inject dependencies through the constructor. The only case when static access is acceptable is when used for factory methods.
Example
class Foo
{
public function bar()
{
Bar::baz();
}
}
Source https://phpmd.org/rules/cleancode.html#staticaccess
Avoid using static access to class '\TikiManager\Command\Helper\CommandHelper' in method 'execute'. Open
$instancesInfo = CommandHelper::getInstancesInfo($instances);
- Read upRead up
- Exclude checks
StaticAccess
Since: 1.4.0
Static access causes unexchangeable dependencies to other classes and leads to hard to test code. Avoid using static access at all costs and instead inject dependencies through the constructor. The only case when static access is acceptable is when used for factory methods.
Example
class Foo
{
public function bar()
{
Bar::baz();
}
}
Source https://phpmd.org/rules/cleancode.html#staticaccess
Avoid using static access to class '\TikiManager\Command\Helper\CommandHelper' in method 'interact'. Open
CommandHelper::renderInstancesTable($output, $instancesInfo);
- Read upRead up
- Exclude checks
StaticAccess
Since: 1.4.0
Static access causes unexchangeable dependencies to other classes and leads to hard to test code. Avoid using static access at all costs and instead inject dependencies through the constructor. The only case when static access is acceptable is when used for factory methods.
Example
class Foo
{
public function bar()
{
Bar::baz();
}
}
Source https://phpmd.org/rules/cleancode.html#staticaccess
Avoid using static access to class '\TikiManager\Command\Helper\CommandHelper' in method 'interact'. Open
return implode(',', CommandHelper::getInstanceIds($selectedInstances));
- Read upRead up
- Exclude checks
StaticAccess
Since: 1.4.0
Static access causes unexchangeable dependencies to other classes and leads to hard to test code. Avoid using static access at all costs and instead inject dependencies through the constructor. The only case when static access is acceptable is when used for factory methods.
Example
class Foo
{
public function bar()
{
Bar::baz();
}
}
Source https://phpmd.org/rules/cleancode.html#staticaccess
The method execute uses an else expression. Else clauses are basically not necessary and you can simplify the code by not using them. Open
} else {
$log[] = 'Failed to backup instance.';
}
- Read upRead up
- Exclude checks
ElseExpression
Since: 1.4.0
An if expression with an else branch is basically not necessary. You can rewrite the conditions in a way that the else clause is not necessary and the code becomes simpler to read. To achieve this, use early return statements, though you may need to split the code it several smaller methods. For very simple assignments you could also use the ternary operations.
Example
class Foo
{
public function bar($flag)
{
if ($flag) {
// one branch
} else {
// another branch
}
}
}
Source https://phpmd.org/rules/cleancode.html#elseexpression
Avoid using static access to class '\TikiManager\Command\Helper\CommandHelper' in method 'interact'. Open
$instances = CommandHelper::getInstances('all', true);
- Read upRead up
- Exclude checks
StaticAccess
Since: 1.4.0
Static access causes unexchangeable dependencies to other classes and leads to hard to test code. Avoid using static access at all costs and instead inject dependencies through the constructor. The only case when static access is acceptable is when used for factory methods.
Example
class Foo
{
public function bar()
{
Bar::baz();
}
}
Source https://phpmd.org/rules/cleancode.html#staticaccess
Avoid using static access to class '\TikiManager\Command\Helper\CommandHelper' in method 'interact'. Open
CommandHelper::renderInstancesTable($output, $instancesInfo);
- Read upRead up
- Exclude checks
StaticAccess
Since: 1.4.0
Static access causes unexchangeable dependencies to other classes and leads to hard to test code. Avoid using static access at all costs and instead inject dependencies through the constructor. The only case when static access is acceptable is when used for factory methods.
Example
class Foo
{
public function bar()
{
Bar::baz();
}
}
Source https://phpmd.org/rules/cleancode.html#staticaccess
Avoid assigning values to variables in if clauses and the like (line '127', column '13'). Open
protected function execute(InputInterface $input, OutputInterface $output)
{
$maxBackups = $input->getOption('max-backups') ?: Environment::get('DEFAULT_MAX_BACKUPS', 0);
if (isset($maxBackups) && filter_var($maxBackups, FILTER_VALIDATE_INT) === false) {
$this->io->error('Max number of backups to keep by instance is not a number');
- Read upRead up
- Exclude checks
IfStatementAssignment
Since: 2.7.0
Assignments in if clauses and the like are considered a code smell. Assignments in PHP return the right operand as their result. In many cases, this is an expected behavior, but can lead to many difficult to spot bugs, especially when the right operand could result in zero, null or an empty string and the like.
Example
class Foo
{
public function bar($flag)
{
if ($foo = 'bar') { // possible typo
// ...
}
if ($baz = 0) { // always false
// ...
}
}
}
Source http://phpmd.org/rules/cleancode.html#ifstatementassignment
Identical blocks of code found in 2 locations. Consider refactoring. Open
if (!empty($logs) && !empty($emails)) {
$logs = implode(PHP_EOL, $logs);
try {
$this->sendEmail(
$emails,
- Read upRead up
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
- Extract Method
- Extract Class
- Form Template Method
- Introduce Null Object
- Pull Up Method
- Pull Up Field
- Substitute Algorithm
Further Reading
- Don't Repeat Yourself on the C2 Wiki
- Duplicated Code on SourceMaking
- Refactoring: Improving the Design of Existing Code by Martin Fowler. Duplicated Code, p76