Fix error on missing target in root. (#348)

When running the build from root with -pl option the sat will give an IOException error if the target folder in the root from which the build is started. This target folder is used for summary report. This change makes sure the target directory exists.

Signed-off-by: Hilbrand Bouwkamp <hilbrand@h72.nl>

sat-plugin/src/main/java/org/openhab/tools/analysis/report/ReportUtility.java

@@ -216,6 +216,7 @@ public void execute() throws MojoFailureException {
 
             // 7. Append the individual report to the summary, if it is not empty
             if (summaryReportDirectory != null) {
+                ensureSummaryReportDirectoryExists();
                 generateSummaryByBundle(htmlOutputFileName, mergedReport);
                 generateSummaryByRules(htmlOutputFileName, mergedReport);
             }
@@ -366,6 +367,12 @@ private void report(String priority, String log) {
         }
     }
 
+    private void ensureSummaryReportDirectoryExists() {
+        if (!summaryReportDirectory.exists()) {
+            summaryReportDirectory.mkdirs();
+        }
+    }
+
     private void generateSummaryByBundle(File htmlOutputFileName, File secondMergeResult) {
         NodeList nodes = selectNodes(secondMergeResult, "/sca/file/message");
         int messagesNumber = nodes.getLength();