Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php |
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| 22 | class ShellTask extends Task |
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| 23 | { |
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| 24 | protected $cwd; |
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| 25 | protected $cli; |
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| 26 | protected $io; |
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| 27 | protected $commandline; |
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| 28 | |||
| 29 | 2 | public function __construct($cwd, Cli $cli, IOInterface $io = null) |
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| 35 | |||
| 36 | /** |
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| 37 | * @todo improve output (also @see SshTask) |
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| 38 | * |
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| 39 | * @param $target |
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| 40 | * @param Version $version |
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| 41 | * @return ExecuteResult |
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| 42 | * @throws \Symfony\Component\Process\Exception\ProcessFailedException |
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| 43 | */ |
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| 44 | 2 | public function execute($target, Version $version = null) |
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| 45 | { |
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| 46 | 2 | $this->commandline = $this->options['command']; |
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| 47 | 2 | foreach ($this->commandline as $command) { |
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| 48 | 2 | $this->output(sprintf('Executing: <comment>%s</comment>', $command)); |
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| 49 | |||
| 50 | 2 | $hasOutput = false; |
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| 51 | |||
| 52 | 2 | $self = $this; |
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| 53 | View Code Duplication | $outputter = function ($type, $buffer) use ($self, &$hasOutput) { |
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| 54 | if (false === $self->io->isVerbose()) return; |
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| 55 | |||
| 56 | if (1 || 'out' === $type) { |
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| 57 | if (!$hasOutput) { |
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| 58 | $this->io->write(''); |
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| 59 | $this->io->write(''); |
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| 60 | $hasOutput = true; |
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| 61 | } |
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| 62 | |||
| 63 | $lines = explode("\n", $buffer); |
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| 64 | foreach ($lines as $line) { |
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| 65 | if ($output = trim($line, "\r\n")) { |
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| 66 | $self->io->write(sprintf('> %s', $output)); |
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| 67 | } |
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| 68 | } |
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| 69 | } |
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| 70 | 2 | }; |
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| 71 | |||
| 72 | 2 | if ($this->cli->execute($command, $outputter, $this->cwd) <> 0) { |
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| 73 | throw new ProcessFailedException($this->cli->getProcess()); |
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| 74 | } |
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| 75 | // elseif ($message = $this->cli->getErrorOutput()) { |
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| 76 | // $messages = explode("\n", $message); |
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| 77 | // |
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| 78 | // $self->io->write(sprintf('<comment>%s</comment>', $messages)); |
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| 79 | // } |
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| 80 | 2 | } |
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| 81 | |||
| 82 | 2 | return new ExecuteResult( |
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| 83 | 2 | $this->getDerivedFiles(), |
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| 84 | 2 | $this->getRemovedFiles() |
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| 85 | 2 | ); |
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| 86 | |||
| 87 | // return $this->cli->getOutput(); |
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| 88 | } |
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| 89 | |||
| 90 | public function simulate($target, Version $version) |
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| 91 | { |
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| 92 | $this->commandline = $this->options['command']; |
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| 93 | foreach ($this->commandline as $command) { |
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| 94 | $this->output(sprintf('Executing: <comment>%s</comment>', $command)); |
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| 95 | } |
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| 96 | } |
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| 97 | |||
| 98 | 2 | protected function getDerivedFiles() |
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| 106 | |||
| 107 | 2 | protected function getRemovedFiles() |
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| 115 | } |
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| 116 |
Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum.