Rename /version endpoint to /firmware_info; add heap memory statistics to firmware data and UI.

Software/MainBoard/rust/src/main.rs

@@ -1327,12 +1327,17 @@ async fn get_version(
     let hash = &env!("VERGEN_GIT_SHA")[0..8];
 
     let board = board.board_hal.get_esp();
+    let heap = esp_alloc::HEAP.stats();
     VersionInfo {
         git_hash: branch + "@" + hash,
         build_time: env!("VERGEN_BUILD_TIMESTAMP").to_owned(),
         current: format!("{:?}", board.current),
         slot0_state: format!("{:?}", board.slot0_state),
         slot1_state: format!("{:?}", board.slot1_state),
+        heap_total: heap.size,
+        heap_used: heap.current_usage,
+        heap_free: heap.size.saturating_sub(heap.current_usage),
+        heap_max_used: heap.max_usage,
     }
 }
 
@@ -1343,4 +1348,8 @@ struct VersionInfo {
     current: String,
     slot0_state: String,
     slot1_state: String,
+    heap_total: usize,
+    heap_used: usize,
+    heap_free: usize,
+    heap_max_used: usize,
 }

Software/MainBoard/rust/src/webserver/get_json.rs

@@ -109,7 +109,7 @@ pub(crate) async fn get_solar_state<T, const N: usize>(
     Ok(Some(serde_json::to_string(&state)?))
 }
 
-pub(crate) async fn get_version_web<T, const N: usize>(
+pub(crate) async fn get_firmware_info_web<T, const N: usize>(
     _request: &mut Connection<'_, T, N>,
 ) -> FatResult<Option<String>> {
     let mut board = BOARD_ACCESS.get().await.lock().await;

Software/MainBoard/rust/src/webserver/mod.rs

@@ -11,7 +11,7 @@ use crate::fat_error::{FatError, FatResult};
 use crate::webserver::backup_manager::{backup_config, backup_info, get_backup_config};
 use crate::webserver::get_json::{
     delete_save, get_battery_state, get_config, get_live_moisture, get_log_localization_config,
-    get_solar_state, get_time, get_timezones, get_version_web, list_saves, tank_info,
+    get_firmware_info_web, get_solar_state, get_time, get_timezones, list_saves, tank_info,
 };
 use crate::webserver::get_log::{get_live_log, get_log};
 use crate::webserver::get_static::{serve_bundle, serve_favicon, serve_index};
@@ -73,7 +73,7 @@ impl Handler for HTTPRequestRouter {
                     "/get_backup_config" => get_backup_config(conn).await?,
                     &_ => {
                         let json = match path {
-                            "/version" => Some(get_version_web(conn).await),
+                            "/firmware_info" => Some(get_firmware_info_web(conn).await),
                             "/time" => Some(get_time(conn).await),
                             "/battery" => Some(get_battery_state(conn).await),
                             "/solar" => Some(get_solar_state(conn).await),