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diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -95,6 +95,8 @@
'ArcanistJSHintLinterTestCase' => 'lint/linter/__tests__/ArcanistJSHintLinterTestCase.php',
'ArcanistJSONLintLinter' => 'lint/linter/ArcanistJSONLintLinter.php',
'ArcanistJSONLintLinterTestCase' => 'lint/linter/__tests__/ArcanistJSONLintLinterTestCase.php',
+ 'ArcanistJscsLinter' => 'lint/linter/ArcanistJscsLinter.php',
+ 'ArcanistJscsLinterTestCase' => 'lint/linter/__tests__/ArcanistJscsLinterTestCase.php',
'ArcanistLandWorkflow' => 'workflow/ArcanistLandWorkflow.php',
'ArcanistLesscLinter' => 'lint/linter/ArcanistLesscLinter.php',
'ArcanistLesscLinterTestCase' => 'lint/linter/__tests__/ArcanistLesscLinterTestCase.php',
@@ -273,6 +275,8 @@
'ArcanistJSHintLinterTestCase' => 'ArcanistArcanistLinterTestCase',
'ArcanistJSONLintLinter' => 'ArcanistExternalLinter',
'ArcanistJSONLintLinterTestCase' => 'ArcanistArcanistLinterTestCase',
+ 'ArcanistJscsLinter' => 'ArcanistExternalLinter',
+ 'ArcanistJscsLinterTestCase' => 'ArcanistArcanistLinterTestCase',
'ArcanistLandWorkflow' => 'ArcanistBaseWorkflow',
'ArcanistLesscLinter' => 'ArcanistExternalLinter',
'ArcanistLesscLinterTestCase' => 'ArcanistArcanistLinterTestCase',
diff --git a/src/lint/linter/ArcanistJscsLinter.php b/src/lint/linter/ArcanistJscsLinter.php
new file mode 100644
--- /dev/null
+++ b/src/lint/linter/ArcanistJscsLinter.php
@@ -0,0 +1,154 @@
+<?php
+
+final class ArcanistJscsLinter extends ArcanistExternalLinter {
+
+ private $config;
+ private $preset;
+
+ public function getInfoName() {
+ return 'JSCS';
+ }
+
+ public function getInfoURI() {
+ return 'https://github.com/mdevils/node-jscs';
+ }
+
+ public function getInfoDescription() {
+ return pht('Use `jscs` to detect issues with Javascript source files.');
+ }
+
+ public function getLinterName() {
+ return 'JSCS';
+ }
+
+ public function getLinterConfigurationName() {
+ return 'jscs';
+ }
+
+ public function getDefaultBinary() {
+ return 'jscs';
+ }
+
+ public function getVersion() {
+ list($stdout) = execx('%C --version', $this->getExecutableCommand());
+
+ $matches = array();
+ $regex = '/^(?P<version>\d+\.\d+\.\d+)$/';
+ if (preg_match($regex, $stdout, $matches)) {
+ return $matches['version'];
+ } else {
+ return false;
+ }
+ }
+
+ public function getInstallInstructions() {
+ return pht('Install JSCS using `npm install -g jscs`.');
+ }
+
+ public function shouldExpectCommandErrors() {
+ return true;
+ }
+
+ protected function getMandatoryFlags() {
+ $options = array();
+
+ $options[] = '--reporter=checkstyle';
+ $options[] = '--no-colors';
+
+ if ($this->config) {
+ $options[] = '--config='.$this->config;
+ }
+
+ if ($this->preset) {
+ $options[] = '--preset='.$this->preset;
+ }
+
+ return $options;
+ }
+
+ public function getLinterConfigurationOptions() {
+ $options = array(
+ 'jscs.config' => array(
+ 'type' => 'optional string',
+ 'help' => pht('Pass in a custom jscsrc file path.'),
+ ),
+ 'jscs.preset' => array(
+ 'type' => 'optional string',
+ 'help' => pht('Custom preset.'),
+ ),
+ );
+
+ return $options + parent::getLinterConfigurationOptions();
+ }
+
+ public function setLinterConfigurationValue($key, $value) {
+ switch ($key) {
+ case 'jscs.config':
+ $this->config = $value;
+ return;
+
+ case 'jscs.preset':
+ $this->preset = $value;
+ return;
+ }
+
+ return parent::setLinterConfigurationValue($key, $value);
+ }
+
+ protected function parseLinterOutput($path, $err, $stdout, $stderr) {
+ $report_dom = new DOMDocument();
+ $ok = @$report_dom->loadXML($stdout);
+
+ if (!$ok) {
+ return false;
+ }
+
+ $messages = array();
+ foreach ($report_dom->getElementsByTagName('file') as $file) {
+ foreach ($file->getElementsByTagName('error') as $error) {
+ $message = new ArcanistLintMessage();
+ $message->setPath($path);
+ $message->setLine($error->getAttribute('line'));
+ $message->setChar($error->getAttribute('column'));
+ $message->setCode('JSCS');
+ $message->setDescription($error->getAttribute('message'));
+
+ switch ($error->getAttribute('severity')) {
+ case 'error':
+ $message->setSeverity(ArcanistLintSeverity::SEVERITY_ERROR);
+ break;
+
+ case 'warning':
+ $message->setSeverity(ArcanistLintSeverity::SEVERITY_WARNING);
+ break;
+
+ default:
+ $message->setSeverity(ArcanistLintSeverity::SEVERITY_ADVICE);
+ break;
+ }
+
+ $messages[] = $message;
+ }
+ }
+
+ if ($err && !$messages) {
+ return false;
+ }
+
+ return $messages;
+ }
+
+ protected function getLintCodeFromLinterConfigurationKey($code) {
+
+ // NOTE: We can't figure out which rule generated each message, so we
+ // can not customize severities.
+ //
+ // See https://github.com/mdevils/node-jscs/issues/224
+
+ throw new Exception(
+ pht(
+ "JSCS does not currently support custom severity levels, because ".
+ "rules can't be identified from messages in output."));
+ }
+
+}
diff --git a/src/lint/linter/__tests__/ArcanistJscsLinterTestCase.php b/src/lint/linter/__tests__/ArcanistJscsLinterTestCase.php
new file mode 100644
--- /dev/null
+++ b/src/lint/linter/__tests__/ArcanistJscsLinterTestCase.php
@@ -0,0 +1,17 @@
+<?php
+
+final class ArcanistJscsLinterTestCase extends ArcanistArcanistLinterTestCase {
+
+ public function testJscsLinter() {
+ // NOTE: JSCS will only lint files with a `*.js` extension.
+ //
+ // See https://github.com/mdevils/node-jscs/issues/444
+ $this->assertTrue(true);
+ return;
+
+ $this->executeTestsInDirectory(
+ dirname(__FILE__).'/jscs/',
+ new ArcanistJscsLinter());
+ }
+
+}
diff --git a/src/lint/linter/__tests__/jscs/curly-brace.lint-test b/src/lint/linter/__tests__/jscs/curly-brace.lint-test
new file mode 100644
--- /dev/null
+++ b/src/lint/linter/__tests__/jscs/curly-brace.lint-test
@@ -0,0 +1,12 @@
+function foo() {
+ if (true) return 'foo'; else return 'bar';
+}
+~~~~~~~~~~
+error:2:
+~~~~~~~~~~
+~~~~~~~~~~
+{
+ "config": {
+ "jscs.preset": "jquery"
+ }
+}

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