Changeset View

Standalone View

				<?php

				/**
				* Uses the mypy tool to lint the typehints in python files.
				*/
				final class MyPyLinter extends ArcanistExternalLinter {

				public function getInfoName() {
				return 'mypy';
				}

				public function getInfoDescription() {
				return pht('Use mypy for linting typehints in python files.');
				}

				public function getLinterName() {
				return 'MYPY';
				}

				public function getLinterConfigurationName() {
				return 'lint-python-mypy';
				}

				public function getDefaultBinary() {
				return 'mypy';
				}

				public function getInstallInstructions() {
				return pht('Please install mypy and make sure it is in your $PATH');
				}

				public function shouldExpectCommandErrors() {
				return true;
				}

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

				$regex = '/^mypy (?P<version>\d+\.\d+)/m';
				if (preg_match($regex, $stdout, $matches)) {
				return $matches['version'];
				}

				return false;
				}

				protected function parseLinterOutput($path, $err, $stdout, $stderr) {
				$messages = array();

				$pattern = '/(.+):(\d+): (.+): (.+)/';
				if (preg_match_all($pattern, $stdout, $errors, PREG_SET_ORDER)) {
				foreach ($errors as $error) {
				list(, $file, $line, $severity, $message) = $error;

				$messages[] = id(new ArcanistLintMessage())
				->setGranularity(ArcanistLinter::GRANULARITY_FILE)
				->setPath($path)
				->setLine($line)
				->setSeverity(ArcanistLintSeverity::SEVERITY_ERROR)
				->setName('mypy found an issue:')
				->setDescription($message);
				}
				}

				return $messages;
				}
				}