Change get porcov version

lib/Git_PoreCov.groovy

@@ -1,19 +1,23 @@
 import java.net.URL
-import java.net.URLConnection
+import groovy.json.JsonSlurper
 
 class Git_PoreCov {
-
-    static boolean IsGitAvailable() {
+    /**
+     * Gets the latest version of a GitHub repository
+     * @return Latest version string
+     */
+    static String getLatestVersion() {
         try {
-            final URL url = new URL("https://api.github.com/repos/replikation/poreCov/releases/latest");
-            final URLConnection conn = url.openConnection();
-            conn.connect();
-            conn.getInputStream().close();
-            return true;
-        } catch (MalformedURLException e) {
-            return false;
-        } catch (IOException e) {
-            return false;
+            final URL url = new URL("https://api.github.com/repos/replikation/poreCov/releases/latest")
+            def response = url.getText(requestProperties: [
+                Accept: 'application/json'
+            ]);
+
+            def json = new JsonSlurper().parseText(response);
+            return json.tag_name ?: json.name;
+        } catch (Exception e) {
+            println "Error fetching version: ${e.message}";
+            return 'Could not get version info';
         }
     }
-}
+}

poreCov.nf

@@ -47,12 +47,8 @@ workflow {
 
 // try to check for poreCov releases
 
-    if ( Git_PoreCov.IsGitAvailable().toString() == "true" ) { porecovrelease = 'https://api.github.com/repos/replikation/poreCov/releases/latest'.toURL().text.split('"tag_name":"')[1].split('","')[0] } 
-    else { porecovrelease = 'Could not get version info' } 
-
-
     println " "
-    println "  Latest available poreCov release: " + porecovrelease
+    println "  Latest available poreCov release: " + Git_PoreCov.getLatestVersion()
     println "  If neccessary update via: nextflow pull replikation/poreCov"
     println "________________________________________________________________________________"