fix for GRAILS-5759 "ReleasePlugin.groovy error when publishing plugin in local repository"

Author: graemerocher

scripts/ReleasePlugin.groovy

@@ -232,7 +232,12 @@ target(modifyOrCreatePluginList:"Updates the remote plugin.xml descriptor or cre
     withPluginListUpdate {
         ant.delete(file:pluginsListFile)
         // get newest version of plugin list
-        fetchRemoteFile("${pluginSVN}/.plugin-meta/plugins-list.xml", pluginsListFile)
+		try{
+			fetchRemoteFile("${pluginSVN}/.plugin-meta/plugins-list.xml", pluginsListFile)
+		}(Exception e){
+		    println "Error reading remote plugin list [${e.message}], building locally..."
+		    updatePluginsListManually()
+		}
 
         def remoteRevision = "0"
         if (shouldUseSVNProtocol(pluginDistURL)) {

scripts/_PluginDependencies.groovy

@@ -1458,9 +1458,9 @@ def fetchRemote(url, closure) {
         // determine if the file exists
         SVNNodeKind nodeKind = repo.checkPath(file , -1)
         if (nodeKind == SVNNodeKind.NONE) {
-            throw new Exception("The file does not exist.")
+            throw new Exception("The file does not exist.: " + url)
         } else if (nodeKind != SVNNodeKind.FILE) {
-            throw new Exception("Error not a file..")
+            throw new Exception("Error not a file..: " + url)
         }
         // present w/ file etc for repo extraction
         closure.call(repo, file)