Fix silent crash in auto-updater if a mod's release has a bad version number

Author: kiooeht

CHANGELOG.md

@@ -1,5 +1,6 @@
 ## Changelog ##
 #### dev ####
+* Fix silent crash in auto-updater if a mod's release has a bad version number
 
 #### v3.6.1 ####
 * Fix silent crash if a mod has a bad version number

src/main/java/com/evacipated/cardcrawl/modthespire/GithubUpdateChecker.java

@@ -2,7 +2,9 @@
 
 import com.google.gson.*;
 import com.vdurmont.semver4j.Semver;
+import com.vdurmont.semver4j.SemverException;
 
+import javax.swing.*;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
@@ -57,7 +59,17 @@ protected void obtainLatestRelease() throws IOException
     @Override
     public Semver getLatestReleaseVersion() throws IOException
     {
-        return ModInfo.safeVersion(getElementAsString("tag_name"));
+        try {
+            return ModInfo.safeVersion(getElementAsString("tag_name"));
+        } catch (SemverException e) {
+            JOptionPane.showMessageDialog(null,
+                getElementAsString("html_url")
+                    + "\nrelease has a missing or bad version number: \""
+                    + getElementAsString("tag_name")
+                    + "\".\nGo yell at the author to fix it.",
+                "Warning", JOptionPane.WARNING_MESSAGE);
+            return null;
+        }
     }
 
     @Override

src/main/java/com/evacipated/cardcrawl/modthespire/UpdateChecker.java

@@ -98,7 +98,12 @@ public boolean isNewerVersionAvailable(Semver current) throws IOException
         if (latest == null) {
             return false;
         }
-        return getLatestReleaseVersion().compareTo(current) > 0;
+        Semver latestVersion = getLatestReleaseVersion();
+        if (latestVersion != null) {
+            return latestVersion.compareTo(current) > 0;
+        } else {
+            return false;
+        }
     }
 
     public JsonElement getElement(String key) throws IOException