Avoid generating an exception if upload fails

The current method of reporting upload errors is based on an exoteric combination of exceptions which makes return error code useless
The Uploader.java message() implementation is too avrdude-dependant to allow easy portability since the upload tools are becoming a lot and very different

With this commit we try to avoid exceptions and only use the external uploader's exit code to decide the status bar message.
The message can be:
- the last line containing "error" string (any case) or
- the usual avrdude message parsing (to keep compatibility with translations)

Needs testing with all platform and all supported upload tools

Author: facchinm

app/src/processing/app/Sketch.java

@@ -1164,7 +1164,8 @@ private boolean exportApplet(String appletPath, boolean usingProgrammer)
 
   private boolean upload(String buildPath, String suggestedClassName, boolean usingProgrammer) throws Exception {
 
-    Uploader uploader = new UploaderUtils().getUploaderByPreferences(false);
+    UploaderUtils uploaderInstance = new UploaderUtils();
+    Uploader uploader = uploaderInstance.getUploaderByPreferences(false);
 
     boolean success = false;
     do {
@@ -1183,7 +1184,7 @@ private boolean upload(String buildPath, String suggestedClassName, boolean usin
 
       List<String> warningsAccumulator = new LinkedList<>();
       try {
-        success = new UploaderUtils().upload(data, uploader, buildPath, suggestedClassName, usingProgrammer, false, warningsAccumulator);
+        success = uploaderInstance.upload(data, uploader, buildPath, suggestedClassName, usingProgrammer, false, warningsAccumulator);
       } finally {
         if (uploader.requiresAuthorization() && !success) {
           PreferencesData.remove(uploader.getAuthorizationKey());
@@ -1198,6 +1199,10 @@ private boolean upload(String buildPath, String suggestedClassName, boolean usin
 
     } while (uploader.requiresAuthorization() && !success);
 
+    if (!success) {
+      editor.statusError(uploader.getFailureMessage());
+    }
+
     return success;
   }
 

arduino-core/src/cc/arduino/packages/Uploader.java

@@ -139,15 +139,13 @@ protected boolean executeUploadCommand(String command[]) throws Exception {
       e.printStackTrace();
     }
 
-    if (error != null) {
-      RunnerException exception = new RunnerException(error);
-      exception.hideStackTrace();
-      throw exception;
-    }
-
     return result == 0;
   }
 
+  public String getFailureMessage() {
+    return error;
+  }
+
   public void message(String s) {
     // selectively suppress a bunch of avrdude output for AVR109/Caterina that should already be quelled but isn't
     if (!verbose && StringUtils.stringContainsOneOf(s, STRINGS_TO_SUPPRESS)) {
@@ -157,8 +155,9 @@ public void message(String s) {
     System.err.print(s);
 
     // ignore cautions
-    if (s.contains("Error")) {
+    if (s.toLowerCase().contains("error")) {
       notFoundError = true;
+      error = s;
       return;
     }
     if (notFoundError) {