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<?php |
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namespace Graze\Morphism\Command; |
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use Exception; |
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use Graze\Morphism\Parse\MysqlDump; |
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use Graze\Morphism\Parse\TokenStream; |
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use RuntimeException; |
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use Symfony\Component\Console\Command\Command; |
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use Symfony\Component\Console\Input\InputArgument; |
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use Symfony\Component\Console\Input\InputInterface; |
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use Symfony\Component\Console\Input\InputOption; |
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use Symfony\Component\Console\Output\OutputInterface; |
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class Extract extends Command |
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{ |
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const COMMAND_NAME = 'extract'; |
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// Command line arguments |
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const ARGUMENT_MYSQL_DUMP_FILE = 'mysql-dump-file'; |
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// Command line options |
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const OPTION_SCHEMA_PATH = 'schema-path'; |
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const OPTION_DATABASE = 'database'; |
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const OPTION_WRITE = 'write'; |
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const OPTION_NO_WRITE = 'no-write'; |
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/** @var string */ |
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private $schemaPath = './schema'; |
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/** @var bool */ |
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private $write = false; |
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/** @var string|null */ |
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private $mysqldump = null; |
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/** @var string|null */ |
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private $databaseName = null; |
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protected function configure() |
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{ |
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$this->setName(self::COMMAND_NAME); |
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$helpText = sprintf( |
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"Usage: %s [OPTIONS] [MYSQL-DUMP-FILE]\n" . |
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"Extracts schema definition(s) from a mysqldump file. Multiple databases may\n" . |
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"be defined in the dump, and they will be extracted to separate directories.\n" . |
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"You might use this tool when initialising the schema directory from a dump\n" . |
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"created on a production server with 'mysqldump --no-data'.\n" . |
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"\n" . |
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"OPTIONS\n" . |
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" -h, -help, --help display this message, and exit\n" . |
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" --schema-path=PATH location of schemas; default: ./schema\n" . |
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" --database=NAME name of database if not specified in dump\n" . |
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" --[no-]write write schema files to schema path; default: no\n" . |
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"", |
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self::COMMAND_NAME |
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); |
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$this->setHelp($helpText); |
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$this->setDescription("Extract schema definitions from a mysqldump file"); |
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$this->addArgument( |
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self::ARGUMENT_MYSQL_DUMP_FILE, |
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InputArgument::OPTIONAL, |
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'', |
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'php://stdin' |
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); |
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$this->addOption( |
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self::OPTION_SCHEMA_PATH, |
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null, |
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InputOption::VALUE_REQUIRED, |
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'', |
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'./schema' |
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); |
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$this->addOption( |
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self::OPTION_DATABASE, |
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null, |
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InputOption::VALUE_REQUIRED |
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); |
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$this->addOption(self::OPTION_WRITE); |
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$this->addOption(self::OPTION_NO_WRITE); |
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} |
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/** |
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* @param InputInterface $input |
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* @param OutputInterface $output |
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* @throws Exception |
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*/ |
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protected function execute(InputInterface $input, OutputInterface $output) |
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{ |
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$this->mysqldump = $input->getArgument(self::ARGUMENT_MYSQL_DUMP_FILE); |
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$this->schemaPath = $input->getOption(self::OPTION_SCHEMA_PATH); |
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$this->databaseName = $input->getOption(self::OPTION_DATABASE); |
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if ($input->getOption(self::OPTION_WRITE)) { |
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$this->write = true; |
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} |
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$stream = TokenStream::newFromFile($this->mysqldump); |
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$dump = new MysqlDump(); |
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try { |
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$dump->parse($stream); |
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} catch (RuntimeException $e) { |
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throw new RuntimeException($stream->contextualise($e->getMessage())); |
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} catch (Exception $e) { |
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throw new Exception($e->getMessage() . "\n\n" . $e->getTraceAsString()); |
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} |
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if ($this->write) { |
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foreach ($dump->databases as $database) { |
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$databaseName = ($database->name == '') ? $this->databaseName : $database->name; |
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if ($databaseName == '') { |
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throw new RuntimeException("No database name specified in dump - please use --database=NAME to supply one"); |
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} |
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$output = "{$this->schemaPath}/$databaseName"; |
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if (!is_dir($output)) { |
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if (!@mkdir($output, 0755, true)) { |
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throw new RuntimeException("Could not make directory $output"); |
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} |
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} |
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foreach ($database->tables as $table) { |
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$path = "$output/{$table->getName()}.sql"; |
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$text = ''; |
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foreach ($table->getDDL() as $query) { |
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$text .= "$query;\n\n"; |
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} |
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if (false === @file_put_contents($path, $text)) { |
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throw new RuntimeException("Could not write $path"); |
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} |
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fprintf(STDERR, "wrote $path\n"); |
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} |
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} |
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} else { |
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foreach ($dump->getDDL() as $query) { |
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$output->writeln("$query;\n"); |
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} |
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} |
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} |
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} |
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graze /
morphism
