ArcanistJSONLintLinter.php
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ArcanistJSONLintLinter.php
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	<?php

	/**
	* A linter for JSON files.
	*/
	final class ArcanistJSONLintLinter extends ArcanistExternalLinter {

	public function getInfoName() {
	return pht('JSON Lint');
	}

	public function getInfoURI() {
	return 'https://github.com/zaach/jsonlint';
	}

	public function getInfoDescription() {
	return pht('Use `%s` to detect syntax errors in JSON files.', 'jsonlint');
	}

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

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

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

	public function getVersion() {
	// NOTE: `jsonlint --version` returns a non-zero exit status.
	list($err, $stdout) = exec_manual(
	'%C --version',
	$this->getExecutableCommand());

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

	public function getInstallInstructions() {
	return pht('Install jsonlint using `%s`.', 'npm install -g jsonlint');
	}

	protected function getMandatoryFlags() {
	return array(
	'--compact',
	);
	}

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

	$messages = array();
	foreach ($lines as $line) {
	$matches = null;
	$match = preg_match(
	'/^(?:(?<path>.+): )?'.
	'line (?<line>\d+), col (?<column>\d+), '.
	'(?<description>.*)$/',
	$line,
	$matches);

	if ($match) {
	$message = new ArcanistLintMessage();
	$message->setPath($path);
	$message->setLine($matches['line']);
	$message->setChar($matches['column']);
	$message->setCode($this->getLinterName());
	$message->setDescription(ucfirst($matches['description']));
	$message->setSeverity(ArcanistLintSeverity::SEVERITY_ERROR);

	$messages[] = $message;
	}
	}

	return $messages;
	}

	}

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