Introduce cpplint check

.github/workflows/cpplint.yml

@@ -0,0 +1,46 @@
+# yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json
+
+name: Cpplint
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+      - release/*
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  cpplint:
+    name: cpplint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5
+
+      - name: Cache
+        uses: actions/cache@v4
+        with:
+          key: ${{ runner.os }}-cpplint
+          path: ~/.cache/pip
+
+      - name: Pyhton
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.13"
+
+      - name: cpplint
+        run: |
+          python -m pip install --upgrade pip
+          pip install --upgrade cpplint
+          cpplint \
+            --repository=. \
+            --recursive \
+            --filter=-build/c++11,-build/namespaces,-readability/braces,-readability/casting,-readability/todo,-runtime/explicit,-runtime/indentation_namespace,-runtime/int,-runtime/references,-whitespace/blank_line,,-whitespace/braces,-whitespace/comments,-whitespace/indent,-whitespace/line_length,-whitespace/newline,-whitespace/parens \
+            lib \
+            include \
+            src

src/AsyncEventSource.cpp

@@ -4,6 +4,10 @@
 #include "AsyncEventSource.h"
 #include "AsyncWebServerLogging.h"
 
+#include <algorithm>
+#include <memory>
+#include <utility>
+
 #define ASYNC_SSE_NEW_LINE_CHAR (char)0xa
 
 using namespace asyncsrv;

src/AsyncEventSource.h

@@ -1,8 +1,7 @@
 // SPDX-License-Identifier: LGPL-3.0-or-later
 // Copyright 2016-2025 Hristo Gochkov, Mathieu Carbou, Emil Muratov
 
-#ifndef ASYNCEVENTSOURCE_H_
-#define ASYNCEVENTSOURCE_H_
+#pragma once
 
 #include <Arduino.h>
 
@@ -44,6 +43,10 @@
 #endif
 #endif
 
+#include <list>
+#include <memory>
+#include <utility>
+
 class AsyncEventSource;
 class AsyncEventSourceResponse;
 class AsyncEventSourceClient;
@@ -312,8 +315,8 @@ class AsyncEventSource : public AsyncWebHandler {
   // system callbacks (do not call from user code!)
   void _addClient(AsyncEventSourceClient *client);
   void _handleDisconnect(AsyncEventSourceClient *client);
-  bool canHandle(AsyncWebServerRequest *request) const override final;
-  void handleRequest(AsyncWebServerRequest *request) override final;
+  bool canHandle(AsyncWebServerRequest *request) const final;
+  void handleRequest(AsyncWebServerRequest *request) final;
 };
 
 class AsyncEventSourceResponse : public AsyncWebServerResponse {
@@ -333,5 +336,3 @@ class AsyncEventSourceResponse : public AsyncWebServerResponse {
     return true;
   }
 };
-
-#endif /* ASYNCEVENTSOURCE_H_ */

src/AsyncJson.cpp

@@ -4,6 +4,8 @@
 #include "AsyncJson.h"
 #include "AsyncWebServerLogging.h"
 
+#include <utility>
+
 #if ASYNC_JSON_SUPPORT == 1
 
 // Json content type response classes

src/AsyncJson.h

@@ -113,14 +113,14 @@ class AsyncCallbackJsonWebHandler : public AsyncWebHandler {
     _onRequest = fn;
   }
 
-  bool canHandle(AsyncWebServerRequest *request) const override final;
-  void handleRequest(AsyncWebServerRequest *request) override final;
+  bool canHandle(AsyncWebServerRequest *request) const final;
+  void handleRequest(AsyncWebServerRequest *request) final;
   void handleUpload(
     __unused AsyncWebServerRequest *request, __unused const String &filename, __unused size_t index, __unused uint8_t *data, __unused size_t len,
     __unused bool final
-  ) override final {}
-  void handleBody(AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total) override final;
-  bool isRequestHandlerTrivial() const override final {
+  ) final {}
+  void handleBody(AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total) final;
+  bool isRequestHandlerTrivial() const final {
     return !_onRequest;
   }
 };

src/AsyncWebServerRequest.cpp

@@ -1,3 +1,6 @@
+// SPDX-License-Identifier: LGPL-3.0-or-later
+// Copyright 2016-2025 Hristo Gochkov, Mathieu Carbou, Emil Muratov
+
 #include <ESPAsyncWebServer.h>
 
 /**

src/AsyncWebSocket.cpp

@@ -4,8 +4,6 @@
 #include "AsyncWebSocket.h"
 #include "AsyncWebServerLogging.h"
 
-#include <cstring>
-
 #include <libb64/cencode.h>
 
 #if defined(ESP32)
@@ -21,6 +19,12 @@
 #include <mbedtls/sha1.h>
 #endif
 
+#include <algorithm>
+#include <cstdio>
+#include <cstring>
+#include <memory>
+#include <utility>
+
 using namespace asyncsrv;
 
 size_t webSocketSendFrameWindow(AsyncClient *client) {
@@ -48,10 +52,10 @@ size_t webSocketSendFrame(AsyncClient *client, bool final, uint8_t opcode, bool
   uint8_t headLen = 2;
   if (len && mask) {
     headLen += 4;
-    mbuf[0] = rand() % 0xFF;
-    mbuf[1] = rand() % 0xFF;
-    mbuf[2] = rand() % 0xFF;
-    mbuf[3] = rand() % 0xFF;
+    mbuf[0] = rand() % 0xFF;  // NOLINT(runtime/threadsafe_fn)
+    mbuf[1] = rand() % 0xFF;  // NOLINT(runtime/threadsafe_fn)
+    mbuf[2] = rand() % 0xFF;  // NOLINT(runtime/threadsafe_fn)
+    mbuf[3] = rand() % 0xFF;  // NOLINT(runtime/threadsafe_fn)
   }
   if (len > 125) {
     headLen += 2;

src/AsyncWebSocket.h

@@ -1,8 +1,7 @@
 // SPDX-License-Identifier: LGPL-3.0-or-later
 // Copyright 2016-2025 Hristo Gochkov, Mathieu Carbou, Emil Muratov
 
-#ifndef ASYNCWEBSOCKET_H_
-#define ASYNCWEBSOCKET_H_
+#pragma once
 
 #include <Arduino.h>
 
@@ -32,6 +31,9 @@
 #include <ESPAsyncWebServer.h>
 #include <AsyncWebServerLogging.h>
 
+#include <cstdio>
+#include <deque>
+#include <list>
 #include <memory>
 
 #ifdef ESP8266
@@ -454,8 +456,8 @@ class AsyncWebSocket : public AsyncWebHandler {
   AsyncWebSocketClient *_newClient(AsyncWebServerRequest *request);
   void _handleDisconnect(AsyncWebSocketClient *client);
   void _handleEvent(AsyncWebSocketClient *client, AwsEventType type, void *arg, uint8_t *data, size_t len);
-  bool canHandle(AsyncWebServerRequest *request) const override final;
-  void handleRequest(AsyncWebServerRequest *request) override final;
+  bool canHandle(AsyncWebServerRequest *request) const final;
+  void handleRequest(AsyncWebServerRequest *request) final;
 
   //  messagebuffer functions/objects.
   AsyncWebSocketMessageBuffer *makeBuffer(size_t size = 0);
@@ -567,5 +569,3 @@ class AsyncWebSocketMessageHandler {
     }
   };
 };
-
-#endif /* ASYNCWEBSOCKET_H_ */

src/BackPort_SHA1Builder.h

@@ -12,12 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#pragma once
+
 #include <Arduino.h>
 #if ESP_IDF_VERSION_MAJOR < 5
 
-#ifndef SHA1Builder_h
-#define SHA1Builder_h
-
 #include <Stream.h>
 #include <WString.h>
 
@@ -39,6 +38,4 @@ class SHA1Builder {
   void getBytes(uint8_t *output);
 };
 
-#endif  // SHA1Builder_h
-
 #endif  // ESP_IDF_VERSION_MAJOR < 5

src/ChunkPrint.h

@@ -1,8 +1,7 @@
 // SPDX-License-Identifier: LGPL-3.0-or-later
 // Copyright 2016-2025 Hristo Gochkov, Mathieu Carbou, Emil Muratov
 
-#ifndef CHUNKPRINT_H
-#define CHUNKPRINT_H
+#pragma once
 
 #include <Print.h>
 
@@ -20,4 +19,3 @@ class ChunkPrint : public Print {
     return this->Print::write(buffer, size);
   }
 };
-#endif

src/ESPAsyncWebServer.h

@@ -1,8 +1,7 @@
 // SPDX-License-Identifier: LGPL-3.0-or-later
 // Copyright 2016-2025 Hristo Gochkov, Mathieu Carbou, Emil Muratov
 
-#ifndef _ESPAsyncWebServer_H_
-#define _ESPAsyncWebServer_H_
+#pragma once
 
 #include <Arduino.h>
 #include <FS.h>
@@ -12,7 +11,10 @@
 #include <deque>
 #include <functional>
 #include <list>
+#include <memory>
+#include <tuple>
 #include <unordered_map>
+#include <utility>
 #include <vector>
 
 #if __has_include("ArduinoJson.h")
@@ -45,15 +47,15 @@
 #error Platform not supported
 #endif
 
-#include "literals.h"
-
 #include "AsyncWebServerVersion.h"
 #define ASYNCWEBSERVER_FORK_ESP32Async
 
 #ifdef ASYNCWEBSERVER_REGEX
 #include <regex>
 #endif
 
+#include "./literals.h"
+
 // See https://github.com/ESP32Async/ESPAsyncWebServer/commit/3d3456e9e81502a477f6498c44d0691499dda8f9#diff-646b25b11691c11dce25529e3abce843f0ba4bd07ab75ec9eee7e72b06dbf13fR388-R392
 // This setting slowdown chunk serving but avoids crashing or deadlocks in the case where slow chunk responses are created, like file serving form SD Card
 #ifndef ASYNCWEBSERVER_USE_CHUNK_INFLIGHT
@@ -1584,5 +1586,3 @@ class DefaultHeaders {
 #if ASYNC_JSON_SUPPORT == 1
 #include <AsyncJson.h>
 #endif
-
-#endif /* _AsyncWebServer_H_ */

src/Middleware.cpp

@@ -4,6 +4,8 @@
 #include "WebAuthentication.h"
 #include <ESPAsyncWebServer.h>
 
+#include <list>
+
 AsyncMiddlewareChain::~AsyncMiddlewareChain() {
   for (AsyncMiddleware *m : _middlewares) {
     if (m->_freeOnRemoval) {

src/WebAuthentication.cpp

@@ -8,9 +8,10 @@
 #if defined(ESP32) || defined(TARGET_RP2040) || defined(TARGET_RP2350) || defined(PICO_RP2040) || defined(PICO_RP2350)
 #include <MD5Builder.h>
 #else
-#include "md5.h"
+#include <md5.h>
 #endif
-#include "literals.h"
+
+#include "./literals.h"
 
 using namespace asyncsrv;
 
@@ -84,7 +85,7 @@ String genRandomMD5() {
 #ifdef ESP8266
   uint32_t r = RANDOM_REG32;
 #else
-  uint32_t r = rand();
+  uint32_t r = rand();  // NOLINT(runtime/threadsafe_fn)
 #endif
   char *out = (char *)malloc(33);
   if (out == NULL || !getMD5((uint8_t *)(&r), 4, out)) {

src/WebAuthentication.h

@@ -1,8 +1,7 @@
 // SPDX-License-Identifier: LGPL-3.0-or-later
 // Copyright 2016-2025 Hristo Gochkov, Mathieu Carbou, Emil Muratov
 
-#ifndef WEB_AUTHENTICATION_H_
-#define WEB_AUTHENTICATION_H_
+#pragma once
 
 #include "Arduino.h"
 
@@ -19,5 +18,3 @@ String generateDigestHash(const char *username, const char *password, const char
 String generateBasicHash(const char *username, const char *password);
 
 String genRandomMD5();
-
-#endif

src/WebHandlerImpl.h

@@ -1,13 +1,13 @@
 // SPDX-License-Identifier: LGPL-3.0-or-later
 // Copyright 2016-2025 Hristo Gochkov, Mathieu Carbou, Emil Muratov
 
-#ifndef ASYNCWEBSERVERHANDLERIMPL_H_
-#define ASYNCWEBSERVERHANDLERIMPL_H_
+#pragma once
 
-#include <string>
-#include "stddef.h"
+#include <stddef.h>
 #include <time.h>
 
+#include <string>
+
 class AsyncStaticWebHandler : public AsyncWebHandler {
   using File = fs::File;
   using FS = fs::FS;
@@ -29,8 +29,8 @@ class AsyncStaticWebHandler : public AsyncWebHandler {
 
 public:
   AsyncStaticWebHandler(const char *uri, FS &fs, const char *path, const char *cache_control);
-  bool canHandle(AsyncWebServerRequest *request) const override final;
-  void handleRequest(AsyncWebServerRequest *request) override final;
+  bool canHandle(AsyncWebServerRequest *request) const final;
+  void handleRequest(AsyncWebServerRequest *request) final;
   AsyncStaticWebHandler &setTryGzipFirst(bool value);
   AsyncStaticWebHandler &setIsDir(bool isDir);
   AsyncStaticWebHandler &setDefaultFile(const char *filename);
@@ -77,13 +77,11 @@ class AsyncCallbackWebHandler : public AsyncWebHandler {
     _onBody = fn;
   }
 
-  bool canHandle(AsyncWebServerRequest *request) const override final;
-  void handleRequest(AsyncWebServerRequest *request) override final;
-  void handleUpload(AsyncWebServerRequest *request, const String &filename, size_t index, uint8_t *data, size_t len, bool final) override final;
-  void handleBody(AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total) override final;
-  bool isRequestHandlerTrivial() const override final {
+  bool canHandle(AsyncWebServerRequest *request) const final;
+  void handleRequest(AsyncWebServerRequest *request) final;
+  void handleUpload(AsyncWebServerRequest *request, const String &filename, size_t index, uint8_t *data, size_t len, bool final) final;
+  void handleBody(AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total) final;
+  bool isRequestHandlerTrivial() const final {
     return !_onRequest;
   }
 };
-
-#endif /* ASYNCWEBSERVERHANDLERIMPL_H_ */