Pre-commit compatible Arcanist Lint Engine

.arcconfig

{
  "phabricator.uri" : "/url/to/phabricator/instance",
  "load" : [
    "../path/to/below/phabricator/module"
  ],
  "lint.engine" : "PreCommitLintEngine"
}

README.md

pre-commit/pre-commit compatible hook classes for arcanist.

Insert them in a phutil library, as specified here

PreCommitLintEngine.php

<?php

final class PreCommitLintEngine extends ArcanistLintEngine {

  public function buildLinters() {

    $paths = $this->getPaths();
    $linter = new PreCommitLinter();

    foreach($paths as $path) {
      $linter->addPath($paths[0]);
    }

    return array(
      $linter
    );
  }

}

PreCommitLinter.php

<?php

final class PreCommitLinter extends ArcanistExternalLinter {

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

  public function getDefaultBinary() {
    return 'pre-commit';
  }

  protected function getPathArgumentForLinterFuture($path) {
    return 'run --file ' . $path;
  }


  public function getInstallInstructions() {
    return pht('run pip install pre-commit');
  }

  protected function parseLinterOutput($path, $err, $stdout, $stderr) {
    if(! $err) return [];
    return false;
  }
}