Import of the watch repository from Pebble

tools/arc/linting/linters/cpplint/PebbleCpplintLinter.php

@@ -0,0 +1,105 @@
+<?php
+// Copyright 2024 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+
+/**
+ * Uses Google's `cpplint.py` to check code.
+ */
+final class PebbleCpplintLinter extends ArcanistExternalLinter {
+
+  public function getLinterName() {
+    return 'cpplint-pebble';
+  }
+
+  public function getLinterConfigurationName() {
+    return 'cpplint-pebble';
+  }
+
+  public function getDefaultBinary() {
+    return "tools/arc/linting/linters/cpplint/cpplint.py";
+  }
+
+  public function getInstallInstructions() {
+    return pht('Ask Tyler Hoffman to fix it.');
+  }
+
+  public function shouldExpectCommandErrors() {
+    return true;
+  }
+
+  public function supportsReadDataFromStdin() {
+    return true;
+  }
+
+  public function getReadDataFromStdinFilename() {
+    return '-';
+  }
+
+  protected function getDefaultFlags() {
+    return array();
+  }
+
+  protected function getDefaultMessageSeverity($code) {
+    return ArcanistLintSeverity::SEVERITY_WARNING;
+  }
+
+  protected function parseLinterOutput($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]);
+      $message->setSeverity($this->getLintMessageSeverity($matches[3]));
+
+      $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;
+  }
+
+}