Differential D21504 Diff 51184 src/lint/linter/ArcanistPyFlakesLinter.php

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src/lint/linter/ArcanistPyFlakesLinter.php

Show All 29 Lines	final class ArcanistPyFlakesLinter extends ArcanistExternalLinter {
public function getDefaultBinary() {		public function getDefaultBinary() {
return 'pyflakes';		return 'pyflakes';
}		}

public function getVersion() {		public function getVersion() {
list($stdout) = execx('%C --version', $this->getExecutableCommand());		list($stdout) = execx('%C --version', $this->getExecutableCommand());

$matches = array();		$matches = array();
if (preg_match('/^(?P<version>\d+\.\d+\.\d+)$/', $stdout, $matches)) {		$pattern = '/^(?P<version>\d+\.\d+\.\d+)( Python.*)?$/';
		if (preg_match($pattern, $stdout, $matches)) {
		epriestleyUnsubmitted Done Inline Actions Ideally, keep this under 80 characters (e.g., by putting `$pattern = ...` on a separate line). epriestley: Ideally, keep this under 80 characters (e.g., by putting `$pattern = ...` on a separate line).
return $matches['version'];		return $matches['version'];
} else {		} else {
return false;		return false;
}		}
}		}

public function getInstallInstructions() {		public function getInstallInstructions() {
return pht('Install pyflakes with `%s`.', 'pip install pyflakes');		return pht('Install pyflakes with `%s`.', 'pip install pyflakes');
}		}

protected function parseLinterOutput($path, $err, $stdout, $stderr) {		protected function parseLinterOutput($path, $err, $stdout, $stderr) {
$lines = phutil_split_lines($stdout, false);		$lines = phutil_split_lines($stdout, false);

$messages = array();		$messages = array();
foreach ($lines as $line) {		foreach ($lines as $line) {
$matches = null;		$matches = null;
if (!preg_match('/^(.?):(\d+): (.)$/', $line, $matches)) {		$pattern = '/^(?<path>.?):(?<line>\d+):(?<column>\d) (?<message>.*)$/';
		if (!preg_match($pattern, $line, $matches)) {
continue;		continue;
}		}
foreach ($matches as $key => $match) {		foreach ($matches as $key => $match) {
$matches[$key] = trim($match);		$matches[$key] = trim($match);
}		}

$severity = ArcanistLintSeverity::SEVERITY_WARNING;		$severity = ArcanistLintSeverity::SEVERITY_WARNING;
$description = $matches[3];		$description = $matches['message'];

$error_regexp = '/(^undefined\|^duplicate\|before assignment$)/';		$error_regexp = '/(^undefined\|^duplicate\|before assignment$)/';
if (preg_match($error_regexp, $description)) {		if (preg_match($error_regexp, $description)) {
$severity = ArcanistLintSeverity::SEVERITY_ERROR;		$severity = ArcanistLintSeverity::SEVERITY_ERROR;
}		}

$message = new ArcanistLintMessage();		$message = new ArcanistLintMessage();
$message->setPath($path);		$message->setPath($path);
$message->setLine($matches[2]);		$message->setLine($matches['line']);
		if ($matches['column'] != '') {
		$message->setChar($matches['column']);
		}
$message->setCode($this->getLinterName());		$message->setCode($this->getLinterName());
$message->setName($this->getLinterName());		$message->setName($this->getLinterName());
$message->setDescription($description);		$message->setDescription($description);
$message->setSeverity($severity);		$message->setSeverity($severity);

$messages[] = $message;		$messages[] = $message;
}		}

return $messages;		return $messages;
}		}

protected function canCustomizeLintSeverities() {		protected function canCustomizeLintSeverities() {
return false;		return false;
}		}

}		}