/** * Overwrites a previous message to the output. * * @param string $message The message */ private function overwrite($message) { $lines = explode("\n", $message); // append whitespace to match the line's length if (null !== $this->lastMessagesLength) { foreach ($lines as $i => $line) { if ($this->lastMessagesLength > Helper::strlenWithoutDecoration($this->output->getFormatter(), $line)) { $lines[$i] = str_pad($line, $this->lastMessagesLength, " ", STR_PAD_RIGHT); } } } // move back to the beginning of the progress bar before redrawing it $this->output->write("\r"); if ($this->formatLineCount) { $this->output->write(sprintf("[%dA", $this->formatLineCount)); } $this->output->write(implode("\n", $lines)); $this->lastMessagesLength = 0; foreach ($lines as $line) { $len = Helper::strlenWithoutDecoration($this->output->getFormatter(), $line); if ($len > $this->lastMessagesLength) { $this->lastMessagesLength = $len; } } }
/** * Renders a caught exception. * * @param \Exception $e An exception instance * @param OutputInterface $output An OutputInterface instance */ public function renderException($e, $output) { do { $title = sprintf(' [%s] ', get_class($e)); $len = $this->stringWidth($title); $width = $this->getTerminalWidth() ? $this->getTerminalWidth() - 1 : PHP_INT_MAX; // HHVM only accepts 32 bits integer in str_split, even when PHP_INT_MAX is a 64 bit integer: https://github.com/facebook/hhvm/issues/1327 if (defined('HHVM_VERSION') && $width > 1 << 31) { $width = 1 << 31; } $formatter = $output->getFormatter(); $lines = array(); foreach (preg_split('/\\r?\\n/', $e->getMessage()) as $line) { foreach ($this->splitStringByWidth($line, $width - 4) as $line) { // pre-format lines to get the right string length $lineLength = $this->stringWidth(preg_replace('/\\[[^m]*m/', '', $formatter->format($line))) + 4; $lines[] = array($line, $lineLength); $len = max($lineLength, $len); } } $messages = array('', ''); $messages[] = $emptyLine = $formatter->format(sprintf('<error>%s</error>', str_repeat(' ', $len))); $messages[] = $formatter->format(sprintf('<error>%s%s</error>', $title, str_repeat(' ', max(0, $len - $this->stringWidth($title))))); foreach ($lines as $line) { $messages[] = $formatter->format(sprintf('<error> %s %s</error>', $line[0], str_repeat(' ', $len - $line[1]))); } $messages[] = $emptyLine; $messages[] = ''; $messages[] = ''; $output->writeln($messages, OutputInterface::OUTPUT_RAW); if (OutputInterface::VERBOSITY_VERBOSE <= $output->getVerbosity()) { $output->writeln('<comment>Exception trace:</comment>'); // exception related properties $trace = $e->getTrace(); array_unshift($trace, array('function' => '', 'file' => $e->getFile() != null ? $e->getFile() : 'n/a', 'line' => $e->getLine() != null ? $e->getLine() : 'n/a', 'args' => array())); for ($i = 0, $count = count($trace); $i < $count; $i++) { $class = isset($trace[$i]['class']) ? $trace[$i]['class'] : ''; $type = isset($trace[$i]['type']) ? $trace[$i]['type'] : ''; $function = $trace[$i]['function']; $file = isset($trace[$i]['file']) ? $trace[$i]['file'] : 'n/a'; $line = isset($trace[$i]['line']) ? $trace[$i]['line'] : 'n/a'; $output->writeln(sprintf(' %s%s%s() at <info>%s:%s</info>', $class, $type, $function, $file, $line)); } $output->writeln(""); $output->writeln(""); } } while ($e = $e->getPrevious()); if (null !== $this->runningCommand) { $output->writeln(sprintf('<info>%s</info>', sprintf($this->runningCommand->getSynopsis(), $this->getName()))); $output->writeln(""); $output->writeln(""); } }
/** * Autocompletes a question. * * @param OutputInterface $output * @param Question $question * * @return string */ private function autocomplete(OutputInterface $output, Question $question, $inputStream) { $autocomplete = $question->getAutocompleterValues(); $ret = ''; $i = 0; $ofs = -1; $matches = $autocomplete; $numMatches = count($matches); $sttyMode = shell_exec('stty -g'); // Disable icanon (so we can fread each keypress) and echo (we'll do echoing here instead) shell_exec('stty -icanon -echo'); // Add highlighted text style $output->getFormatter()->setStyle('hl', new OutputFormatterStyle('black', 'white')); // Read a keypress while (!feof($inputStream)) { $c = fread($inputStream, 1); // Backspace Character if ("" === $c) { if (0 === $numMatches && 0 !== $i) { $i--; // Move cursor backwards $output->write("[1D"); } if ($i === 0) { $ofs = -1; $matches = $autocomplete; $numMatches = count($matches); } else { $numMatches = 0; } // Pop the last character off the end of our string $ret = substr($ret, 0, $i); } elseif ("" === $c) { // Did we read an escape sequence? $c .= fread($inputStream, 2); // A = Up Arrow. B = Down Arrow if (isset($c[2]) && ('A' === $c[2] || 'B' === $c[2])) { if ('A' === $c[2] && -1 === $ofs) { $ofs = 0; } if (0 === $numMatches) { continue; } $ofs += 'A' === $c[2] ? -1 : 1; $ofs = ($numMatches + $ofs) % $numMatches; } } elseif (ord($c) < 32) { if ("\t" === $c || "\n" === $c) { if ($numMatches > 0 && -1 !== $ofs) { $ret = $matches[$ofs]; // Echo out remaining chars for current match $output->write(substr($ret, $i)); $i = strlen($ret); } if ("\n" === $c) { $output->write($c); break; } $numMatches = 0; } continue; } else { $output->write($c); $ret .= $c; $i++; $numMatches = 0; $ofs = 0; foreach ($autocomplete as $value) { // If typed characters match the beginning chunk of value (e.g. [AcmeDe]moBundle) if (0 === strpos($value, $ret) && $i !== strlen($value)) { $matches[$numMatches++] = $value; } } } // Erase characters from cursor to end of line $output->write("[K"); if ($numMatches > 0 && -1 !== $ofs) { // Save cursor position $output->write("7"); // Write highlighted text $output->write('<hl>' . substr($matches[$ofs], $i) . '</hl>'); // Restore cursor position $output->write("8"); } } // Reset stty so it behaves normally again shell_exec(sprintf('stty %s', $sttyMode)); return $ret; }
/** * Gets cell width. * * @param array $row * @param int $column * * @return int */ private function getCellWidth(array $row, $column) { return isset($row[$column]) ? Helper::strlenWithoutDecoration($this->output->getFormatter(), $row[$column]) : 0; }