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<?php |
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namespace Docker\Context; |
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use Symfony\Component\Filesystem\Filesystem; |
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class ContextBuilder |
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{ |
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/** |
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* @var string |
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*/ |
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private $directory; |
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/** |
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* @var string |
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*/ |
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private $from = 'base'; |
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/** |
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* @var array |
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*/ |
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private $commands = []; |
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/** |
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* @var array |
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*/ |
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private $files = []; |
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/** |
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* @var \Symfony\Component\Filesystem\Filesystem |
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*/ |
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private $fs; |
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/** |
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* @var string |
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*/ |
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private $format; |
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/** |
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* @param \Symfony\Component\Filesystem\Filesystem |
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*/ |
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public function __construct(Filesystem $fs = null) |
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{ |
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$this->fs = $fs ?: new Filesystem(); |
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$this->format = Context::FORMAT_STREAM; |
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} |
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/** |
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* Sets the format of the Context output |
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* |
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* @param string $format |
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* |
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* @return \Docker\Context\ContextBuilder |
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*/ |
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public function setFormat($format) |
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{ |
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$this->format = $format; |
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return $this; |
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} |
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/** |
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* Set the FROM instruction of Dockerfile |
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* |
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* @param string $from From which image we start |
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* |
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* @return \Docker\Context\ContextBuilder |
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*/ |
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public function from($from) |
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{ |
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$this->from = $from; |
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return $this; |
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} |
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/** |
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* Add a ADD instruction to Dockerfile |
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* |
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* @param string $path Path wanted on the image |
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* @param string $content Content of file |
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* |
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* @return \Docker\Context\ContextBuilder |
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*/ |
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public function add($path, $content) |
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{ |
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$this->commands[] = ['type' => 'ADD', 'path' => $path, 'content' => $content]; |
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return $this; |
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} |
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/** |
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* Add a RUN instruction to Dockerfile |
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* |
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* @param string $command Command to run |
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* |
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* @return \Docker\Context\ContextBuilder |
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*/ |
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public function run($command) |
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{ |
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$this->commands[] = ['type' => 'RUN', 'command' => $command]; |
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return $this; |
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} |
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/** |
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* Create context given the state of builder |
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* |
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* @return \Docker\Context\Context |
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*/ |
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public function getContext() |
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{ |
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if ($this->directory !== null) { |
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$this->cleanDirectory(); |
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} |
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$this->directory = sys_get_temp_dir().'/'.md5($this->from.serialize($this->commands)); |
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$this->fs->mkdir($this->directory); |
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$this->write($this->directory); |
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return new Context($this->directory, $this->format); |
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} |
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/** |
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* @void |
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*/ |
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public function __destruct() |
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{ |
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$this->cleanDirectory(); |
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} |
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/** |
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* Write docker file and associated files in a directory |
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* |
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* @param string $directory Target directory |
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* |
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* @void |
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*/ |
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private function write($directory) |
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{ |
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$dockerfile = []; |
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$dockerfile[] = 'FROM '.$this->from; |
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foreach ($this->commands as $command) { |
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switch ($command['type']) { |
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case 'RUN': |
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$dockerfile[] = 'RUN '.$command['command']; |
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break; |
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case 'ADD': |
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$dockerfile[] = 'ADD '.$this->getFile($directory, $command['content']).' '.$command['path']; |
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break; |
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} |
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} |
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$this->fs->dumpFile($directory.DIRECTORY_SEPARATOR.'Dockerfile', implode(PHP_EOL, $dockerfile)); |
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} |
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/** |
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* Generated a file in a directory |
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* |
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* @param string $directory Targeted directory |
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* @param string $content Content of file |
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* |
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* @return string Name of file generated |
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*/ |
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private function getFile($directory, $content) |
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{ |
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$hash = md5($content); |
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if (!array_key_exists($hash, $this->files)) { |
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$file = tempnam($directory, ''); |
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$this->fs->dumpFile($file, $content); |
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$this->files[$hash] = basename($file); |
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} |
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return $this->files[$hash]; |
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} |
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/** |
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* Clean directory generated |
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*/ |
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private function cleanDirectory() |
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{ |
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$this->fs->remove($this->directory); |
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} |
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} |
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stage1 /
docker-php
