Check that there are published binaries (i.e. not stuck in bin-NEW).

debian/changelog

@@ -4,7 +4,9 @@ ubuntu-dev-tools (0.136ubuntu1) UNRELEASED; urgency=low
   * Remove dgetlp. No longer needed.
   * Use httplib2 everywhere that we do https. The python stdlib doesn't do
     certificate verification.
-  * requestbackport: Check for existing backport bugs first.
+  * requestbackport:
+    - Check for existing backport bugs first.
+    - Check that there are published binaries (i.e. not stuck in bin-NEW).
   * pull-lp-source, requestbackport: Take the latest version from any
     non-backports pocket. Implemented by making lpapicache's getSourcePackage
     smarter.

requestbackport

@@ -175,6 +175,14 @@ def request_backport(package_spph, source, destinations):
     for bpph in package_spph.getBinaries():
         published_binaries.add(bpph.getPackageName())
 
+    if not published_binaries:
+        Logger.error("%s (%s) has no published binaries in %s. ",
+                     package_spph.getPackageName(), package_spph.getVersion(),
+                     source)
+        Logger.normal("Is it stuck in bin-NEW? It can't be backported until "
+                      "the binaries have been accepted.")
+        sys.exit(1)
+
     testing = []
     testing += ["You can test-build the backport in your PPA with "
                 "backportpackage:"]