/**
* 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;
}
