Allow a limited number of pages to fail.

Otherwise, even one failing page will inhibit deployment.

pom.xml

@@ -9,6 +9,7 @@
 	<properties>
 		<project.build.sourceEncoding>utf-8</project.build.sourceEncoding>
 		<upload.url>beta.faustedition.net:/var/www/dev</upload.url>
+		<faust.diplo.allowedFailures>10</faust.diplo.allowedFailures>
 	</properties>
 
 	<repositories>
@@ -210,6 +211,7 @@
 										<argument>-classpath</argument>
 										<classpath/>
 										<argument>-Dphantomjs.binary=${phantomjs.binary}</argument>
+										<argument>-Dfaust.diplo.allowedFailures=${faust.diplo.allowedFailures}</argument>
 										<argument>net.faustedition.gen.DiplomaticConversion</argument>
 									</arguments>
 								</configuration>

src/main/java/net/faustedition/gen/DiplomaticConversion.java

@@ -176,7 +176,13 @@ public static void main(final String[] args) throws IOException {
 		if (failedConversions.length > 0) {
 			logger.log(Level.SEVERE, MessageFormat.format("Conversion of the following {0} pages failed:\n {1}",
 					failedConversions.length, Joiner.on("\n ").join(failedConversions)));
-			System.exit(1);
+			int allowedFailures = Integer.parseUnsignedInt(System.getProperty("faust.diplo.allowedFailures", "0"));
+			if (failedConversions.length > allowedFailures) {
+				logger.log(Level.SEVERE, MessageFormat.format("These are more than the {0} tolerated failures.", allowedFailures));
+				System.exit(1);
+			} else {
+				logger.log(Level.INFO, MessageFormat.format("Up to {0} failures are tolerated.", allowedFailures));
+			}
 		}
 		} finally {
 			webServer.stop();