add namespace filter parameter

wikiq

@@ -128,7 +128,7 @@ class WikiqPage():
 
 class WikiqParser():
     
-    def __init__(self, input_file, output_file, collapse_user=False, persist=None, urlencode=False):
+    def __init__(self, input_file, output_file, collapse_user=False, persist=None, urlencode=False, namespaces = None):
         """ 
         Parameters:
            persist : what persistence method to use. Takes a PersistMethod value
@@ -141,7 +141,11 @@ class WikiqParser():
         self.printed_header = False
         self.namespaces = []
         self.urlencode = urlencode
-        
+        if namespaces is not None:
+            self.namespace_filter = set(namespaces)
+        else:
+            self.namespace_filter = None
+
     def __get_namespace_from_title(self, title):
         default_ns = None
 
@@ -176,6 +180,13 @@ class WikiqParser():
 
         # Iterate through pages
         for page in dump:
+            namespace = page.namespace if page.namespace is not None else self.__get_namespace_from_title(page.title)
+
+            # skip namespaces not in the filter
+            if self.namespace_filter is not None:
+                if namespace in self.namespace_filter:
+                    continue
+
             rev_detector = mwreverts.Detector()
 
             if self.persist != PersistMethod.none:
@@ -194,6 +205,8 @@ class WikiqParser():
                     from mw.lib import persistence
                     state = persistence.State()
 
+                
+
             # Iterate through a page's revisions
             for rev in page:
 
@@ -202,7 +215,7 @@ class WikiqParser():
                             'articleid' : page.id,
                             'editor_id' : "" if rev.deleted.user == True or rev.user.id is None else rev.user.id,
                             'title' : '"' + page.title + '"',
-                            'namespace' : page.namespace if page.namespace is not None else self.__get_namespace_from_title(page.title),
+                            'namespace' : namespace,
                             'deleted' : "TRUE" if rev.deleted.text else "FALSE" } 
 
                 # if revisions are deleted, /many/ things will be missing
@@ -373,7 +386,7 @@ parser.add_argument('-p', '--persistence', dest="persist", default=None, const='
 parser.add_argument('-u', '--url-encode', dest="urlencode", action="store_true",
                     help="Output url encoded text strings. This works around some data issues like newlines in editor names. In the future it may be used to output other text data.")
 
-parser.add_argument('-ns', '--namespace-filter', dest="namespace_filter", type=str, help="Comma-seperate list of namespaces numbers to include")
+parser.add_argument('-ns', '--namespace-filter', dest="namespace_filter", type=str, help="Comma-seperate list of namespaces numbers to include", default=None)
 
 
 args = parser.parse_args()
@@ -389,6 +402,11 @@ elif args.persist == "legacy":
 else:
     persist = PersistMethod.sequence
 
+if args.namespace_filter is not None:
+    namespaces = [int(ns) for ns in args.namespace_filter.split(',')]
+else:
+    namespaces = None
+
 if len(args.dumpfiles) > 0:
     for filename in args.dumpfiles:
         input_file = open_input_file(filename)
@@ -408,9 +426,10 @@ if len(args.dumpfiles) > 0:
             output_file = open_output_file(filename)
 
             wikiq = WikiqParser(input_file, output_file, 
-                            collapse_user=args.collapse_user,
+                                collapse_user=args.collapse_user,
                                 persist=persist,
-                            urlencode=args.urlencode)
+                                urlencode=args.urlencode,
+                                namespaces = namespaces)
 
 
         wikiq.process()
@@ -423,7 +442,8 @@ else:
                         collapse_user=args.collapse_user,
                         persist=persist,
                         persist_legacy=args.persist_legacy,
-                        urlencode=args.urlencode)
+                        urlencode=args.urlencode,
+                        namespaces = namespaces)
     wikiq.process()
 
 # stop_words = "a,able,about,across,after,all,almost,also,am,among,an,and,any,are,as,at,be,because,been,but,by,can,cannot,could,dear,did,do,does,either,else,ever,every,for,from,get,got,had,has,have,he,her,hers,him,his,how,however,i,if,in,into,is,it,its,just,least,let,like,likely,may,me,might,most,must,my,neither,no,nor,not,of,off,often,on,only,or,other,our,own,rather,said,say,says,she,should,since,so,some,than,that,the,their,them,then,there,these,they,this,tis,to,too,twas,us,wants,was,we,were,what,when,where,which,while,who,whom,why,will,with,would,yet,you,your"