Display spiffs storage details

Author: smford

README.md

@@ -114,6 +114,7 @@ A simple ESP32 Based RFID Access Control System for tools or door.
 - Create a generic shipMetric(String metricname, String metricvalue) function rather than individual ship* functions. Why: Too messy.
 
 ## Done
+- Display spiffs storage details
 - Web Admin: Scan i2c devices and print out
 - Merge /backlighton and /backlightoff into /backlight?state=on/off
 - If no settings file, set default from defaults.h

eeh-esp32-rfid.ino

@@ -25,7 +25,7 @@
 // file upload progress based upon https://codepen.io/PerfectIsShit/pen/zogMXP
 // wifi scanning based upon https://github.com/me-no-dev/ESPAsyncWebServer#scanning-for-available-wifi-networks
 
-#define FIRMWARE_VERSION "v1.7.6-ota"
+#define FIRMWARE_VERSION "v1.7.7-ota"
 
 // configuration structure
 struct Config {
@@ -156,6 +156,10 @@ void setup() {
     SPIFFS.remove(filename);
   }
 
+  Serial.print("SPIFFS Free: "); Serial.println(humanReadableSize((SPIFFS.totalBytes() - SPIFFS.usedBytes())));
+  Serial.print("SPIFFS Used: "); Serial.println(humanReadableSize(SPIFFS.usedBytes()));
+  Serial.print("SPIFFS Total: "); Serial.println(humanReadableSize(SPIFFS.totalBytes()));
+
   Serial.println(listFiles());
 
   Serial.println("Loading Configuration ...");
@@ -642,6 +646,9 @@ String getFullStatus() {
   fullStatusDoc["TelegrafServer"] = config.telegrafserver;
   fullStatusDoc["TelegrafServerPort"] = config.telegrafserverport;
   fullStatusDoc["TelegrafShipTime"] = config.telegrafshiptime;
+  fullStatusDoc["SPIFFSFree"] = (SPIFFS.totalBytes() - SPIFFS.usedBytes());
+  fullStatusDoc["SPIFFSUsed"] = SPIFFS.usedBytes();
+  fullStatusDoc["SPIFFSTotal"] = SPIFFS.totalBytes();
 
   String fullStatus = "";
   serializeJson(fullStatusDoc, fullStatus);

webpages.h

@@ -23,6 +23,7 @@ const char index_html[] PROGMEM = R"rawliteral(
   <h2>%EEH_HOSTNAME%</h2>
   <h3 id="maintenancemode">%MAINTENANCEMODE%</h3>
   <p>Device Time: <span id="ntptime">%DEVICETIME%</span> | Firmware Version: %FIRMWARE%</p>
+  <p>Free Storage: <span id="freespiffs">%FREESPIFFS%</span> | Used Storage: <span id="usedspiffs">%USEDSPIFFS%</span> | Total Storage: <span id="totalspiffs">%TOTALSPIFFS%</span></p>
   <button onclick="logoutButton()">Logout Web Admin</button>
   <button onclick="getUserDetailsButton()">Refresh Current Card User Details</button>
   <button onclick="grantAccessButton()" %GRANTBUTTONENABLE%>Grant Access to Current Card</button>

webserver_functions.ino

@@ -178,6 +178,18 @@ String processor(const String& var) {
     return String(config.webpagedelay * 1000);
   }
 
+  if (var == "FREESPIFFS") {
+    return humanReadableSize((SPIFFS.totalBytes() - SPIFFS.usedBytes()));
+  }
+
+  if (var == "USEDSPIFFS") {
+    return humanReadableSize(SPIFFS.usedBytes());
+  }
+
+  if (var == "TOTALSPIFFS") {
+    return humanReadableSize(SPIFFS.totalBytes());
+  }
+
   return String();
 }