new command 'log show' to dump out last log messages. useful for serial when you've missed the startup messages

src/console.cpp

@@ -51,6 +51,12 @@ static inline EMSESP & to_app(Shell & shell) {
 
 static void console_log_level(Shell & shell, const std::vector<std::string> & arguments) {
     if (!arguments.empty()) {
+        // special command called show which dumps out the contents of the web log buffer
+        if (arguments[0] == "show") {
+            EMSESP::webLogService.show(shell);
+            return;
+        }
+
         uuid::log::Level level;
 
         if (uuid::log::parse_level_lowercase(arguments[0], level)) {

src/locale_common.h

@@ -154,7 +154,7 @@ MAKE_WORD_CUSTOM(typeid_mandatory, "<type ID>")
 MAKE_WORD_CUSTOM(deviceid_mandatory, "<deviceID>")
 MAKE_WORD_CUSTOM(device_type_optional, "[device]")
 MAKE_WORD_CUSTOM(invalid_log_level, "Invalid log level")
-MAKE_WORD_CUSTOM(log_level_optional, "[level]")
+MAKE_WORD_CUSTOM(log_level_optional, "[level | show]")
 MAKE_WORD_CUSTOM(name_mandatory, "<name>")
 MAKE_WORD_CUSTOM(name_optional, "[name]")
 MAKE_WORD_CUSTOM(new_password_prompt1, "Enter new password: ")

src/web/WebLogService.cpp

@@ -18,6 +18,8 @@
 
 #include "emsesp.h"
 
+using ::uuid::console::Shell;
+
 namespace emsesp {
 
 WebLogService::WebLogService(AsyncWebServer * server, SecurityManager * securityManager)
@@ -135,6 +137,43 @@ void WebLogService::operator<<(std::shared_ptr<uuid::log::Message> message) {
     });
 }
 
+// dumps out the contents of log buffer to shell console
+void WebLogService::show(Shell & shell) {
+    if (log_messages_.empty())
+        return;
+
+    shell.println();
+    shell.println("Last Log:");
+    shell.println();
+
+    for (const auto & message : log_messages_) {
+        log_message_id_tail_ = message.id_;
+        // Serial.printf("%s", message.content_->text.c_str());
+        // Serial.println();
+
+        shell.print(uuid::log::format_timestamp_ms(message.content_->uptime_ms, 3));
+        shell.printf(" %c %lu: [%s] ", uuid::log::format_level_char(message.content_->level), message.id_, message.content_->name);
+
+        if ((message.content_->level == uuid::log::Level::ERR) || (message.content_->level == uuid::log::Level::WARNING)) {
+            shell.print(COLOR_RED);
+            shell.println(message.content_->text);
+            shell.print(COLOR_RESET);
+        } else if (message.content_->level == uuid::log::Level::INFO) {
+            shell.print(COLOR_YELLOW);
+            shell.println(message.content_->text);
+            shell.print(COLOR_RESET);
+        } else if (message.content_->level == uuid::log::Level::DEBUG) {
+            shell.print(COLOR_CYAN);
+            shell.println(message.content_->text);
+            shell.print(COLOR_RESET);
+        } else {
+            shell.println(message.content_->text);
+        }
+    }
+
+    shell.println();
+}
+
 void WebLogService::loop() {
     if (!events_.count() || log_messages_.empty()) {
         return;

src/web/WebLogService.h

@@ -23,6 +23,8 @@
 #define EMSESP_FETCH_LOG_PATH "/rest/fetchLog"
 #define EMSESP_LOG_SETTINGS_PATH "/rest/logSettings"
 
+using ::uuid::console::Shell;
+
 namespace emsesp {
 
 class WebLogService : public uuid::log::Handler {
@@ -42,6 +44,7 @@ class WebLogService : public uuid::log::Handler {
     bool             compact() const;
     void             compact(bool compact);
     void             loop();
+    void             show(Shell & shell);
 
     virtual void operator<<(std::shared_ptr<uuid::log::Message> message);