Improve version comparison

README.md

@@ -109,11 +109,12 @@ Thanks to these great people for supporting this project.
 
 <!-- ** WORK IN PROGRESS ** -->
 
-### 2.4.0 **WORK IN PROGRESS**
+### 2.4.x **WORK IN PROGRESS**
 
 -   (foorschtbar) Native support for [Ulanzi TC001 Pixel Clock](https://www.ulanzi.com/products/ulanzi-pixel-smart-clock-2882?aff=1181)\* (**Beta**, see [Releases](https://github.com/pixelit-project/PixelIt/releases)) :tada:
 -   (foorschtbar) Display `zZz` on the matrix when the device going to sleep
 -   (foorschtbar) Fixed issue with flickering icons, wenn device wake from sleep mode
+-   (Metaln00b) Improved new firmware check by doing real version compare (major, minor, patch and prerelease)
 
 ### 2.3.2 (2023-09-16)
 

src/PixelIt.ino

@@ -336,6 +336,13 @@ unsigned long checkUpdateScreenPrevMillis = 0;
 unsigned long checkUpdatePrevMillis = 0;
 String lastReleaseVersion = VERSION;
 
+typedef struct {
+    int major;
+    int minor;
+    int patch;
+    char prerelease[16];
+} Version;
+
 // MP3Player Vars
 String OldGetMP3PlayerInfo;
 
@@ -375,6 +382,45 @@ String ResetReason()
 #endif
 }
 
+Version parseVersion(const char* versionStr) {
+    Version version;
+
+    memset(version.prerelease, 0, sizeof(version.prerelease));
+
+    int x = sscanf(versionStr, "%d.%d.%d-%s", &version.major, &version.minor, &version.patch, version.prerelease);
+    return version;
+}
+
+int compareVersions(const char* version1, const char* version2) {
+    if (strlen(version1) == 0 || strlen(version2) == 0)
+    {
+        return 0;
+    }
+
+    Version v1 = parseVersion(version1);
+    Version v2 = parseVersion(version2);
+
+    if (v1.major != v2.major) {
+        return v1.major - v2.major;
+    }
+    if (v1.minor != v2.minor) {
+        return v1.minor - v2.minor;
+    }
+    if (v1.patch != v2.patch) {
+        return v1.patch - v2.patch;
+    }
+
+    if (strlen(v1.prerelease) == 0 && strlen(v2.prerelease) == 0) {
+        return 0; // Versions are equal
+    } else if (strlen(v1.prerelease) == 0) {
+        return 1; // v1 is greater (no prerelease for v1, but prerelease for v2)
+    } else if (strlen(v2.prerelease) == 0) {
+        return -1; // v2 is greater (no prerelease for v2, but prerelease for v1)
+    } else {
+        return strcmp(v1.prerelease, v2.prerelease); // Compare prerelease strings
+    }
+}
+
 void getBatteryVoltage()
 {
     uint16_t value = 0;
@@ -3689,13 +3735,16 @@ void checkUpdate()
         if (root.containsKey("version"))
         {
             lastReleaseVersion = root["version"].as<String>();
-            if (!lastReleaseVersion.equals(VERSION))
+
+            int result = compareVersions(lastReleaseVersion.c_str(), VERSION);
+
+            if (result > 0)
             {
-                Log(F("CheckUpdate"), F("New FW available"));
+                Log(F("CheckUpdate"), "New FW available " + String(VERSION) + " -> " + lastReleaseVersion);
             }
             else
             {
-                Log(F("CheckUpdate"), F("No new FW available"));
+                Log(F("CheckUpdate"), "No new FW available " + String(VERSION) + " -> " + lastReleaseVersion);
             }
         }
     }
@@ -3748,7 +3797,9 @@ void loop()
         if (millis() - checkUpdateScreenPrevMillis >= CHECKUPDATESCREEN_INTERVAL)
         {
             checkUpdateScreenPrevMillis = millis();
-            if (!lastReleaseVersion.equals(VERSION))
+
+            int result = compareVersions(lastReleaseVersion.c_str(), VERSION);
+            if (result > 0)
             {
                 if (!sleepMode)
                 {