+
+ # lets do further validation here
+ checkkeys = ["source", "reason", "packages", "new", "rm"]
+
+ # If we get an empty definition - we just have nothing to check, no transitions defined
+ if type(trans) != dict:
+ # This can be anything. We could have no transitions defined. Or someone totally fucked up the
+ # file, adding stuff in a way we dont know or want. Then we set it empty - and simply have no
+ # transitions anymore. User will see it in the information display after he quit the editor and
+ # could fix it
+ trans = ""
+ return trans
+
+ try:
+ for test in trans:
+ t = trans[test]
+
+ # First check if we know all the keys for the transition and if they have
+ # the right type (and for the packages also if the list has the right types
+ # included, ie. not a list in list, but only str in the list)
+ for key in t:
+ if key not in checkkeys:
+ print "ERROR: Unknown key %s in transition %s" % (key, test)
+ failure = True
+
+ if key == "packages":
+ if type(t[key]) != list:
+ print "ERROR: Unknown type %s for packages in transition %s." % (type(t[key]), test)
+ failure = True
+ try:
+ for package in t["packages"]:
+ if type(package) != str:
+ print "ERROR: Packages list contains invalid type %s (as %s) in transition %s" % (type(package), package, test)
+ failure = True
+ if re_broken_package.match(package):
+ # Someone had a space too much (or not enough), we have something looking like
+ # "package1 - package2" now.
+ print "ERROR: Invalid indentation of package list in transition %s, around package(s): %s" % (test, package)
+ failure = True
+ except TypeError:
+ # In case someone has an empty packages list
+ print "ERROR: No packages defined in transition %s" % (test)
+ failure = True
+ continue
+
+ elif type(t[key]) != str:
+ if key == "new" and type(t[key]) == int:
+ # Ok, debian native version
+ continue
+ else:
+ print "ERROR: Unknown type %s for key %s in transition %s" % (type(t[key]), key, test)
+ failure = True
+
+ # And now the other way round - are all our keys defined?
+ for key in checkkeys:
+ if key not in t:
+ print "ERROR: Missing key %s in transition %s" % (key, test)
+ failure = True
+ except TypeError:
+ # In case someone defined very broken things
+ print "ERROR: Unable to parse the file"
+ failure = True
+
+
+ if failure:
+ return None
+