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ArcanistRubyLinter.php
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ArcanistRubyLinter.php
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<?php
/**
* Uses `ruby` to detect various errors in Ruby code.
*
* @group linter
*/
final class ArcanistRubyLinter extends ArcanistExternalLinter {
public function getLinterName() {
return 'RUBY';
}
public function getLinterConfigurationName() {
return 'ruby';
}
public function getDefaultBinary() {
// TODO: Deprecation warning.
$config = $this->getEngine()->getConfigurationManager();
$prefix = $config->getConfigFromAnySource('lint.ruby.prefix');
if ($prefix !== null) {
$ruby_bin = $prefix.'ruby';
}
return 'ruby';
}
public function getInstallInstructions() {
return pht('Install `ruby` from <http://www.ruby-lang.org/>.');
}
public function supportsReadDataFromStdin() {
return true;
}
public function shouldExpectCommandErrors() {
return true;
}
protected function getMandatoryFlags() {
// -w: turn on warnings
// -c: check syntax
return '-w -c';
}
protected function getDefaultMessageSeverity($code) {
return ArcanistLintSeverity::SEVERITY_ERROR;
}
protected function parseLinterOutput($path, $err, $stdout, $stderr) {
$lines = phutil_split_lines($stderr, $retain_endings = false);
$messages = array();
foreach ($lines as $line) {
$matches = null;
if (!preg_match("/(.*?):(\d+): (.*?)$/", $line, $matches)) {
continue;
}
foreach ($matches as $key => $match) {
$matches[$key] = trim($match);
}
$code = head(explode(',', $matches[3]));
$message = new ArcanistLintMessage();
$message->setPath($path);
$message->setLine($matches[2]);
$message->setCode($this->getLinterName());
$message->setName(pht('Syntax Error'));
$message->setDescription($matches[3]);
$message->setSeverity($this->getLintMessageSeverity($code));
$messages[] = $message;
}
if ($err && !$messages) {
return false;
}
return $messages;
}
}

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