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phorge-arcanist/src/lint/linter/ArcanistCpplintLinter.php
epriestley 7870e7f2e4 Warn when accessing deprecated lint config
Summary:
Ref T2039. Addresses two issues:

  - Issues a warning for use of config which is deprecated by `.arclint`.
  - We no longer require an engine to be present for these linters, so `arc linters` doesn't fatal if they aren't configured.

Test Plan:
  - Ran `arc linters` in a repo with no JSHint.
  - Ran `arc linters` in a repo with junk in .arcconfig and got a warning when it was read. Verified it still took effect.

Reviewers: chad, btrahan, joshuaspence

Reviewed By: joshuaspence

Subscribers: epriestley

Maniphest Tasks: T2039

Differential Revision: https://secure.phabricator.com/D9058
2014-05-11 18:39:28 -07:00

94 lines
2.3 KiB
PHP

<?php
/**
* Uses Google's `cpplint.py` to check code.
*/
final class ArcanistCpplintLinter extends ArcanistExternalLinter {
public function getLinterName() {
return 'CPPLINT';
}
public function getLinterConfigurationName() {
return 'cpplint';
}
public function getDefaultBinary() {
$prefix = $this->getDeprecatedConfiguration('lint.cpplint.prefix');
$bin = $this->getDeprecatedConfiguration('lint.cpplint.bin', 'cpplint.py');
if ($prefix) {
return $prefix.'/'.$bin;
} else {
return $bin;
}
}
public function getInstallInstructions() {
return pht('Install cpplint.py using `wget http://google-styleguide.'.
'googlecode.com/svn/trunk/cpplint/cpplint.py`.');
}
public function shouldExpectCommandErrors() {
return true;
}
public function supportsReadDataFromStdin() {
return true;
}
public function getReadDataFromStdinFilename() {
return '-';
}
protected function getDefaultFlags() {
return $this->getDeprecatedConfiguration('lint.cpplint.options', array());
}
protected function parseLinterOutput($path, $err, $stdout, $stderr) {
$lines = explode("\n", $stderr);
$messages = array();
foreach ($lines as $line) {
$line = trim($line);
$matches = null;
$regex = '/^-:(\d+):\s*(.*)\s*\[(.*)\] \[(\d+)\]$/';
if (!preg_match($regex, $line, $matches)) {
continue;
}
foreach ($matches as $key => $match) {
$matches[$key] = trim($match);
}
$message = new ArcanistLintMessage();
$message->setPath($path);
$message->setLine($matches[1]);
$message->setCode($matches[3]);
$message->setName($matches[3]);
$message->setDescription($matches[2]);
$message->setSeverity(ArcanistLintSeverity::SEVERITY_WARNING);
$messages[] = $message;
}
if ($err && !$messages) {
return false;
}
return $messages;
}
protected function getLintCodeFromLinterConfigurationKey($code) {
if (!preg_match('@^[a-z_]+/[a-z_]+$@', $code)) {
throw new Exception(
pht(
'Unrecognized lint message code "%s". Expected a valid cpplint '.
'lint code like "%s" or "%s".',
$code,
'build/include_order',
'whitespace/braces'));
}
return $code;
}
}