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<?php |
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namespace Karma; |
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use Gaufrette\Filesystem; |
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use Psr\Log\NullLogger; |
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use Karma\FormatterProviders\NullProvider; |
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class Hydrator implements ConfigurableProcessor |
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{ |
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use \Karma\Logging\LoggerAware; |
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const |
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TODO_VALUE = '__TODO__', |
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FIXME_VALUE = '__FIXME__', |
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VARIABLE_REGEX = '~<%(?P<variableName>[A-Za-z0-9_\.\-]+)%>~'; |
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private |
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$sources, |
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$suffix, |
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$reader, |
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$dryRun, |
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$enableBackup, |
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$finder, |
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$formatterProvider, |
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$currentFormatterName, |
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$currentTargetFile, |
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$systemEnvironment, |
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$unusedVariables, |
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$unvaluedVariables, |
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$target, |
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$nonDistFilesOverwriteAllowed; |
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public function __construct(Filesystem $sources, Filesystem $target, Configuration $reader, Finder $finder, FormatterProvider $formatterProvider = null) |
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{ |
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$this->logger = new NullLogger(); |
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$this->sources = $sources; |
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$this->target = $target; |
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$this->reader = $reader; |
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$this->finder = $finder; |
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$this->suffix = Application::DEFAULT_DISTFILE_SUFFIX; |
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$this->dryRun = false; |
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$this->enableBackup = false; |
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$this->formatterProvider = $formatterProvider; |
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if($this->formatterProvider === null) |
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{ |
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$this->formatterProvider = new NullProvider(); |
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} |
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$this->currentFormatterName = null; |
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$this->currentTargetFile = null; |
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$this->systemEnvironment = null; |
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$this->unusedVariables = array_flip($reader->getAllVariables()); |
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$this->unvaluedVariables = array(); |
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$this->nonDistFilesOverwriteAllowed = false; |
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} |
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public function setSuffix($suffix) |
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{ |
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$this->suffix = $suffix; |
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return $this; |
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} |
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public function setDryRun($value = true) |
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{ |
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$this->dryRun = (bool) $value; |
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return $this; |
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} |
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public function enableBackup($value = true) |
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{ |
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$this->enableBackup = (bool) $value; |
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return $this; |
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} |
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public function allowNonDistFilesOverwrite($nonDistFilesOverwriteAllowed = true) |
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{ |
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$this->nonDistFilesOverwriteAllowed = $nonDistFilesOverwriteAllowed; |
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return $this; |
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} |
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public function setFormatterProvider(FormatterProvider $formatterProvider) |
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{ |
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$this->formatterProvider = $formatterProvider; |
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return $this; |
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} |
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public function setSystemEnvironment($environment) |
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{ |
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$this->systemEnvironment = $environment; |
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return $this; |
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} |
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public function hydrate($environment) |
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{ |
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$files = $this->collectFiles(); |
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foreach($files as $file) |
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{ |
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$this->hydrateFile($file, $environment); |
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} |
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$this->info(sprintf( |
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'%d files generated', |
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count($files) |
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)); |
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} |
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private function collectFiles() |
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{ |
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$pattern = sprintf('.*%s$', preg_quote($this->suffix)); |
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if($this->nonDistFilesOverwriteAllowed === true) |
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{ |
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$pattern = '.*'; |
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} |
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return $this->finder->findFiles(sprintf('~%s~', $pattern)); |
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} |
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private function hydrateFile($file, $environment) |
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{ |
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$this->currentTargetFile = preg_replace(sprintf('~(.*)(%s)$~', preg_quote($this->suffix)), '$1', $file); |
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if($this->nonDistFilesOverwriteAllowed) |
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{ |
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$this->currentTargetFile = (new \SplFileInfo($this->currentTargetFile))->getFilename(); |
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if($this->target->has($this->currentTargetFile)) |
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{ |
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throw new \RuntimeException(sprintf('The fileName "%s" is defined in 2 config folders (not allowed with targetPath config enabled)', $this->currentTargetFile)); |
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} |
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} |
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$content = $this->sources->read($file); |
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$replacementCounter = $this->parseFileDirectives($file, $content, $environment); |
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$targetContent = $this->injectValues($file, $content, $environment, $replacementCounter); |
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$this->debug("Write $this->currentTargetFile"); |
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if($this->dryRun === false) |
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{ |
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$this->backupFile($this->currentTargetFile); |
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$this->target->write($this->currentTargetFile, $targetContent, true); |
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} |
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} |
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private function parseFileDirectives($file, & $fileContent, $environment) |
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{ |
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$this->currentFormatterName = null; |
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$this->parseFormatterDirective($file, $fileContent); |
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$replacementCounter = $this->parseListDirective($file, $fileContent, $environment); |
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$fileContent = $this->removeFileDirectives($fileContent); |
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return $replacementCounter; |
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} |
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private function parseFormatterDirective($file, $fileContent) |
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{ |
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if($count = preg_match_all('~<%\s*karma:formatter\s*=\s*(?P<formatterName>[^%]+)%>~', $fileContent, $matches)) |
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{ |
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if($count !== 1) |
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{ |
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throw new \RuntimeException(sprintf( |
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'Syntax error in %s : only one formatter directive is allowed (%d found)', |
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$file, |
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$count |
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)); |
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} |
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$this->currentFormatterName = strtolower(trim($matches['formatterName'][0])); |
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} |
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} |
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private function parseListDirective($file, & $fileContent, $environment) |
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{ |
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$replacementCounter = 0; |
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$regexDelimiter = '(delimiter="(?P<delimiterName>[^"]*)")?'; |
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$regexWrapper = '(wrapper="(?P<wrapperPrefix>[^"]*)":"(?P<wrapperSuffix>[^"]*)")?'; |
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$regex = '~<%\s*karma:list\s*var=(?P<variableName>[\S]+)\s*' . $regexDelimiter . '\s*' . $regexWrapper . '\s*%>~i'; |
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while(preg_match($regex, $fileContent, $matches)) |
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{ |
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$delimiter = ''; |
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if(isset($matches['delimiterName'])) |
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{ |
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$delimiter = $matches['delimiterName']; |
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} |
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$wrapper = ['prefix' => '', 'suffix' => '']; |
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if(isset($matches['wrapperPrefix'], $matches['wrapperSuffix'])) |
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{ |
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$wrapper = [ |
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'prefix' => $matches['wrapperPrefix'], |
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'suffix' => $matches['wrapperSuffix'] |
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]; |
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} |
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$generatedList = $this->generateContentForListDirective($matches['variableName'], $environment, $delimiter, $wrapper); |
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$fileContent = str_replace($matches[0], $generatedList, $fileContent); |
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$replacementCounter++; |
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} |
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$this->lookingForSyntaxErrorInListDirective($file, $fileContent); |
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return $replacementCounter; |
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} |
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private function lookingForSyntaxErrorInListDirective($file, $fileContent) |
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{ |
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if(preg_match('~<%.*karma\s*:\s*list\s*~i', $fileContent)) |
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{ |
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// karma:list detected but has not matches full regexp |
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throw new \RuntimeException("Invalid karma:list directive in file $file"); |
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} |
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} |
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private function generateContentForListDirective($variable, $environment, $delimiter, array $wrapper) |
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{ |
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$values = $this->readValueToInject($variable, $environment); |
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$formatter = $this->getFormatterForCurrentTargetFile(); |
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if(! is_array($values)) |
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{ |
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$values = array($values); |
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} |
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array_walk($values, function (& $value) use ($formatter) { |
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$value = $formatter->format($value); |
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}); |
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$generated = implode($delimiter, $values); |
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return sprintf( |
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'%s%s%s', |
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! empty($generated) ? $wrapper['prefix'] : '', |
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$generated, |
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! empty($generated) ? $wrapper['suffix'] : '' |
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); |
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} |
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private function removeFileDirectives($fileContent) |
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{ |
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return preg_replace('~(<%\s*karma:[^%]*%>\s*)~i', '', $fileContent); |
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} |
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private function injectValues($sourceFile, $content, $environment, $replacementCounter = 0) |
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{ |
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$replacementCounter += $this->injectScalarValues($content, $environment); |
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$replacementCounter += $this->injectListValues($content, $environment); |
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if($replacementCounter === 0) |
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{ |
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$this->warning("No variable found in $sourceFile"); |
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} |
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return $content; |
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} |
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private function readValueToInject($variableName, $environment) |
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{ |
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if($this->systemEnvironment !== null && $this->reader->isSystem($variableName) === true) |
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{ |
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$environment = $this->systemEnvironment; |
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} |
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$this->markVariableAsUsed($variableName); |
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$value = $this->reader->read($variableName, $environment); |
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$this->checkValueIsAllowed($variableName, $environment, $value); |
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return $value; |
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} |
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private function checkValueIsAllowed($variableName, $environment, $value) |
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{ |
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if($value === self::FIXME_VALUE) |
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{ |
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throw new \RuntimeException(sprintf( |
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'Missing value for variable %s in environment %s (FIXME marker found)', |
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$variableName, |
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$environment |
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)); |
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} |
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elseif($value === self::TODO_VALUE) |
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{ |
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$this->unvaluedVariables[] = $variableName; |
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} |
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} |
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private function getFormatterForCurrentTargetFile() |
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{ |
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$fileExtension = pathinfo($this->currentTargetFile, PATHINFO_EXTENSION); |
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return $this->formatterProvider->getFormatter($fileExtension, $this->currentFormatterName); |
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} |
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private function injectScalarValues(& $content, $environment) |
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{ |
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$formatter = $this->getFormatterForCurrentTargetFile(); |
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$content = preg_replace_callback(self::VARIABLE_REGEX, function(array $matches) use($environment, $formatter) |
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{ |
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$value = $this->readValueToInject($matches['variableName'], $environment); |
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if(is_array($value)) |
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{ |
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// don't replace lists at this time |
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return $matches[0]; |
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} |
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return $formatter->format($value); |
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328
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}, $content, -1, $count); |
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return $count; |
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} |
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333
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private function injectListValues(& $content, $environment) |
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{ |
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$formatter = $this->getFormatterForCurrentTargetFile(); |
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$replacementCounter = 0; |
337
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$eol = $this->detectEol($content); |
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340
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while(preg_match(self::VARIABLE_REGEX, $content)) |
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{ |
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$lines = explode($eol, $content); |
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$result = array(); |
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foreach($lines as $line) |
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{ |
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if(preg_match(self::VARIABLE_REGEX, $line, $matches)) |
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{ |
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$values = $this->readValueToInject($matches['variableName'], $environment); |
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$replacementCounter++; |
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foreach($values as $value) |
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{ |
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$result[] = preg_replace(self::VARIABLE_REGEX, $formatter->format($value), $line, 1); |
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} |
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continue; |
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} |
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$result[] = $line; |
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} |
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$content = implode($eol, $result); |
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} |
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return $replacementCounter; |
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} |
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369
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private function detectEol($content) |
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{ |
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$types = array("\r\n", "\r", "\n"); |
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373
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foreach($types as $type) |
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{ |
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if(strpos($content, $type) !== false) |
376
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{ |
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return $type; |
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} |
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} |
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|
|
return "\n"; |
382
|
|
|
} |
383
|
|
|
|
384
|
|
|
private function backupFile($targetFile) |
385
|
|
|
{ |
386
|
|
|
if($this->enableBackup === true) |
387
|
|
|
{ |
388
|
|
|
if($this->target->has($targetFile)) |
389
|
|
|
{ |
390
|
|
|
$backupFile = $targetFile . Application::BACKUP_SUFFIX; |
391
|
|
|
$this->target->write($backupFile, $this->target->read($targetFile), true); |
|
|
|
|
392
|
|
|
} |
393
|
|
|
} |
394
|
|
|
} |
395
|
|
|
|
396
|
|
|
public function rollback() |
397
|
|
|
{ |
398
|
|
|
$files = $this->collectFiles(); |
399
|
|
|
|
400
|
|
|
foreach($files as $file) |
401
|
|
|
{ |
402
|
|
|
$this->rollbackFile($file); |
403
|
|
|
} |
404
|
|
|
} |
405
|
|
|
|
406
|
|
|
private function rollbackFile($file) |
407
|
|
|
{ |
408
|
|
|
$this->debug("- $file"); |
409
|
|
|
|
410
|
|
|
$targetFile = substr($file, 0, strlen($this->suffix) * -1); |
411
|
|
|
$backupFile = $targetFile . Application::BACKUP_SUFFIX; |
412
|
|
|
|
413
|
|
|
if($this->sources->has($backupFile)) |
414
|
|
|
{ |
415
|
|
|
$this->info(" Writing $targetFile"); |
416
|
|
|
|
417
|
|
|
if($this->dryRun === false) |
418
|
|
|
{ |
419
|
|
|
$backupContent = $this->sources->read($backupFile); |
420
|
|
|
$this->sources->write($targetFile, $backupContent, true); |
|
|
|
|
421
|
|
|
} |
422
|
|
|
} |
423
|
|
|
} |
424
|
|
|
|
425
|
|
|
public function getUnusedVariables() |
426
|
|
|
{ |
427
|
|
|
return array_merge(array_flip($this->unusedVariables)); |
428
|
|
|
} |
429
|
|
|
|
430
|
|
|
private function markVariableAsUsed($variableName) |
431
|
|
|
{ |
432
|
|
|
if(isset($this->unusedVariables[$variableName])) |
433
|
|
|
{ |
434
|
|
|
unset($this->unusedVariables[$variableName]); |
435
|
|
|
} |
436
|
|
|
} |
437
|
|
|
|
438
|
|
|
public function getUnvaluedVariables() |
439
|
|
|
{ |
440
|
|
|
return $this->unvaluedVariables; |
441
|
|
|
} |
442
|
|
|
} |
443
|
|
|
|
Only declaring a single property per statement allows you to later on add doc comments more easily.
It is also recommended by PSR2, so it is a common style that many people expect.