Differential D8477 Diff 25904 arcanist/linter/PrettierLinter.php

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arcanist/linter/PrettierLinter.php

This file was added.

				<?php

				/**
				* Run the prettier linter: https://prettier.io.
				*/
				final class PrettierLinter extends ArcanistExternalLinter {

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

				public function getInfoURI() {
				return 'https://prettier.io';
				}

				public function getInfoDescription() {
				return pht('Use prettier for processing specified files.');
				}

				public function getInstallInstructions() {
				return pht('Install `prettier` using `npm` with `npm install prettier`');
				}

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

				public function getLinterConfigurationName() {
				return 'prettier';
				}

				public function getDefaultBinary() {
				try {
				list($binPath) = execx('npm bin');
				} catch (Exception $ex) {
				throw new ArcanistUsageException(
				pht('npm binary path not found, make sure you have npm installed.'));
				}

				return Filesystem::resolvePath('prettier', rtrim($binPath));
				}

				public function shouldUseInterpreter() {
				return true;
				}

				public function getDefaultInterpreter() {
				return "npx";
				}

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

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

				return false;
				}

				protected function parseLinterOutput($path, $err, $stdout, $stderr) {
				$root = $this->getProjectRoot();
				$path = Filesystem::resolvePath($path, $root);

				$orig = file_get_contents($path);
				if ($orig == $stdout) {
				return array();
				}

				$message = id(new ArcanistLintMessage())
				->setPath($path)
				->setLine(1)
				->setChar(1)
				->setGranularity(ArcanistLinter::GRANULARITY_FILE)
				->setCode('PRETTIER')
				->setSeverity(ArcanistLintSeverity::SEVERITY_AUTOFIX)
				->setName('Code style violation')
				->setDescription("'$path' has code style errors.")
				->setOriginalText($orig)
				->setReplacementText($stdout);

				return array($message);
				}
				}