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rARC/src/lint/linter/ArcanistRubyLinter.php
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ArcanistRubyLinter.php
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<?php
/**
* Uses `ruby` to detect various errors in Ruby code.
*/
final class ArcanistRubyLinter extends ArcanistExternalLinter {
public function getInfoURI() {
return 'https://www.ruby-lang.org/';
}
public function getInfoName() {
return pht('Ruby');
}
public function getInfoDescription() {
return pht(
'Use `%s` to check for syntax errors in Ruby source files.',
'ruby');
}
public function getLinterName() {
return 'RUBY';
}
public function getLinterConfigurationName() {
return 'ruby';
}
public function getDefaultBinary() {
return 'ruby';
}
public function getVersion() {
list($stdout) = execx('%C --version', $this->getExecutableCommand());
$matches = array();
$regex = '/^ruby (?P<version>\d+\.\d+\.\d+)+/';
if (preg_match($regex, $stdout, $matches)) {
return $matches['version'];
} else {
return false;
}
}
public function getInstallInstructions() {
return pht('Install `%s` from <%s>.', 'ruby', 'http://www.ruby-lang.org/');
}
protected function getMandatoryFlags() {
// -w: turn on warnings
// -c: check syntax
return array('-w', '-c');
}
protected function parseLinterOutput($path, $err, $stdout, $stderr) {
$lines = phutil_split_lines($stderr, 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;
}
return $messages;
}
}

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