[lock] Modernize to C++17 nested namespaces

esphome/components/lock/automation.h

@@ -4,8 +4,7 @@
 #include "esphome/core/automation.h"
 #include "esphome/core/component.h"
 
-namespace esphome {
-namespace lock {
+namespace esphome::lock {
 
 template<typename... Ts> class LockAction : public Action<Ts...> {
  public:
@@ -72,5 +71,4 @@ class LockUnlockTrigger : public Trigger<> {
   }
 };
 
-}  // namespace lock
-}  // namespace esphome
+}  // namespace esphome::lock

esphome/components/lock/lock.cpp

@@ -3,8 +3,7 @@
 #include "esphome/core/controller_registry.h"
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace lock {
+namespace esphome::lock {
 
 static const char *const TAG = "lock";
 
@@ -108,5 +107,4 @@ LockCall &LockCall::set_state(const std::string &state) {
 }
 const optional<LockState> &LockCall::get_state() const { return this->state_; }
 
-}  // namespace lock
-}  // namespace esphome
+}  // namespace esphome::lock

esphome/components/lock/lock.h

@@ -7,8 +7,7 @@
 #include "esphome/core/preferences.h"
 #include <initializer_list>
 
-namespace esphome {
-namespace lock {
+namespace esphome::lock {
 
 class Lock;
 
@@ -177,5 +176,4 @@ class Lock : public EntityBase {
   ESPPreferenceObject rtc_;
 };
 
-}  // namespace lock
-}  // namespace esphome
+}  // namespace esphome::lock

esphome/components/web_server_base/web_server_base.h

@@ -111,7 +111,7 @@ class WebServerBase : public Component {
       this->initialized_++;
       return;
     }
-    this->server_ = std::make_unique<AsyncWebServer>(this->port_);
+    this->server_ = std::make_shared<AsyncWebServer>(this->port_);
     // All content is controlled and created by user - so allowing all origins is fine here.
     DefaultHeaders::Instance().addHeader("Access-Control-Allow-Origin", "*");
     this->server_->begin();
@@ -127,7 +127,7 @@ class WebServerBase : public Component {
       this->server_ = nullptr;
     }
   }
-  AsyncWebServer *get_server() const { return this->server_.get(); }
+  std::shared_ptr<AsyncWebServer> get_server() const { return server_; }
   float get_setup_priority() const override;
 
 #ifdef USE_WEBSERVER_AUTH
@@ -143,7 +143,7 @@ class WebServerBase : public Component {
  protected:
   int initialized_{0};
   uint16_t port_{80};
-  std::unique_ptr<AsyncWebServer> server_{nullptr};
+  std::shared_ptr<AsyncWebServer> server_{nullptr};
   std::vector<AsyncWebHandler *> handlers_;
 #ifdef USE_WEBSERVER_AUTH
   internal::Credentials credentials_;