edont compute persistence by default

[mediawiki_dump_tools.git] / wikiq

diff --git a/wikiq b/wikiq
index ad4d549c4cefa7a4220fe2ab3f399b7d3668a7b2..87d9a12cd484287c84876474696b1036ed7bb49d 100755 (executable)
--- a/wikiq
+++ b/wikiq
@@ -13,12 +13,22 @@ from subprocess import Popen, PIPE
 from collections import deque
 from hashlib import sha1
 
 from collections import deque
 from hashlib import sha1
 

-from mw.xml_dump import Iterator
-from mw.lib import persistence
+from mwxml import Dump
+
+from deltas.tokenizers import wikitext_split
+import mwpersistence

 import mwreverts
 from urllib.parse import quote
 TO_ENCODE = ('title', 'editor')
 PERSISTENCE_RADIUS=7
 import mwreverts
 from urllib.parse import quote
 TO_ENCODE = ('title', 'editor')
 PERSISTENCE_RADIUS=7

+from deltas import SequenceMatcher
+from deltas import SegmentMatcher
+
+class PersistMethod:
+    none = 0
+    sequence = 1
+    segment = 2
+    legacy = 3

 
 def calculate_persistence(tokens_added):
     return(sum([(len(x.revisions)-1) for x in tokens_added]),
 
 def calculate_persistence(tokens_added):
     return(sum([(len(x.revisions)-1) for x in tokens_added]),


@@ -28,12 +38,16 @@ class WikiqIterator():
     def __init__(self, fh, collapse_user=False):
         self.fh = fh
         self.collapse_user = collapse_user
     def __init__(self, fh, collapse_user=False):
         self.fh = fh
         self.collapse_user = collapse_user

-        self.mwiterator = Iterator.from_file(self.fh)
+        self.mwiterator = Dump.from_file(self.fh)
+        self.namespace_map = { ns.id : ns.name for ns in
+                               self.mwiterator.site_info.namespaces }

         self.__pages = self.load_pages()
 
     def load_pages(self):
         for page in self.mwiterator:
         self.__pages = self.load_pages()
 
     def load_pages(self):
         for page in self.mwiterator:

-            yield WikiqPage(page, collapse_user=self.collapse_user)
+            yield WikiqPage(page,
+                            namespace_map = self.namespace_map,
+                            collapse_user=self.collapse_user)

 
     def __iter__(self):
         return self.__pages
 
     def __iter__(self):
         return self.__pages


@@ -46,13 +60,19 @@ class WikiqPage():
                  'restrictions', 'mwpage', '__revisions',
                  'collapse_user')
     
                  'restrictions', 'mwpage', '__revisions',
                  'collapse_user')
     

-    def __init__(self, page, collapse_user=False):
+    def __init__(self, page, namespace_map, collapse_user=False):

         self.id = page.id
         self.id = page.id

-        self.title = page.title

         self.namespace = page.namespace
         self.namespace = page.namespace

-        self.redirect = page.redirect
+        # following mwxml, we assume namespace 0 in cases where
+        # page.namespace is inconsistent with namespace_map
+        if page.namespace not in namespace_map:
+            self.title = page.title
+            page.namespace = 0
+        if page.namespace != 0:
+            self.title = ':'.join([namespace_map[page.namespace], page.title])
+        else:
+            self.title = page.title

         self.restrictions = page.restrictions
         self.restrictions = page.restrictions

-        

         self.collapse_user = collapse_user
         self.mwpage = page
         self.__revisions = self.rev_list()
         self.collapse_user = collapse_user
         self.mwpage = page
         self.__revisions = self.rev_list()


@@ -76,7 +96,14 @@ class WikiqPage():
             else:
                 if self.collapse_user:
                     # yield if this is the last edit in a seq by a user and reset
             else:
                 if self.collapse_user:
                     # yield if this is the last edit in a seq by a user and reset

-                    if not rev.contributor.user_text == prev_rev.contributor.user_text:
+                    # also yield if we do know who the user is
+
+                    if rev.deleted.user or prev_rev.deleted.user:
+                        yield prev_rev
+                        collapsed_revs = 1
+                        rev.collapsed_revs = collapsed_revs
+
+                    elif not rev.user.text == prev_rev.user.text:

                         yield prev_rev
                         collapsed_revs = 1
                         rev.collapsed_revs = collapsed_revs
                         yield prev_rev
                         collapsed_revs = 1
                         rev.collapsed_revs = collapsed_revs


@@ -89,6 +116,7 @@ class WikiqPage():
                     yield prev_rev
 
             prev_rev = rev
                     yield prev_rev
 
             prev_rev = rev

+

         # also yield the final time
         yield prev_rev
 
         # also yield the final time
         yield prev_rev
 


@@ -99,10 +127,13 @@ class WikiqPage():
         return next(self.__revisions)
 
 class WikiqParser():
         return next(self.__revisions)
 
 class WikiqParser():

+    
+    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
+        """

 
 

-
-    def __init__(self, input_file, output_file, collapse_user=False, persist=False, urlencode=False):
-        

         self.input_file = input_file
         self.output_file = output_file
         self.collapse_user = collapse_user
         self.input_file = input_file
         self.output_file = output_file
         self.collapse_user = collapse_user


@@ -110,7 +141,11 @@ class WikiqParser():
         self.printed_header = False
         self.namespaces = []
         self.urlencode = urlencode
         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
 
     def __get_namespace_from_title(self, title):
         default_ns = None
 


@@ -137,41 +172,67 @@ class WikiqParser():
         dump = WikiqIterator(self.input_file, collapse_user=self.collapse_user)
 
         # extract list of namspaces
         dump = WikiqIterator(self.input_file, collapse_user=self.collapse_user)
 
         # extract list of namspaces

-        self.namespaces = {ns.name : ns.id for ns in dump.mwiterator.namespaces}
+        self.namespaces = {ns.name : ns.id for ns in dump.mwiterator.site_info.namespaces}

 
         page_count = 0
         rev_count = 0
 
         page_count = 0
         rev_count = 0

+
+

         # Iterate through pages
         for page in dump:
         # Iterate through pages
         for page in dump:

-            if self.persist:
-                state = persistence.State()
-                window = deque(maxlen=PERSISTENCE_RADIUS)
+            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 not in self.namespace_filter:
+                    continue

 
             rev_detector = mwreverts.Detector()
 
 
             rev_detector = mwreverts.Detector()
 

+            if self.persist != PersistMethod.none:
+                window = deque(maxlen=PERSISTENCE_RADIUS)
+
+                if self.persist == PersistMethod.sequence:
+                    state = mwpersistence.DiffState(SequenceMatcher(tokenizer = wikitext_split),
+                                                    revert_radius=PERSISTENCE_RADIUS)
+
+                elif self.persist == PersistMethod.segment:
+                    state = mwpersistence.DiffState(SegmentMatcher(tokenizer = wikitext_split),
+                                                    revert_radius=PERSISTENCE_RADIUS)
+
+                # self.persist == PersistMethod.legacy
+                else:
+                    from mw.lib import persistence
+                    state = persistence.State()
+

             # Iterate through a page's revisions
             for rev in page:
 
                 rev_data = {'revid' : rev.id,
                             'date_time' : rev.timestamp.strftime('%Y-%m-%d %H:%M:%S'),
                             'articleid' : page.id,
             # Iterate through a page's revisions
             for rev in page:
 
                 rev_data = {'revid' : rev.id,
                             'date_time' : rev.timestamp.strftime('%Y-%m-%d %H:%M:%S'),
                             'articleid' : page.id,

-                            'editor_id' : "" if rev.contributor.id == None else rev.contributor.id,
+                            'editor_id' : "" if rev.deleted.user == True or rev.user.id is None else rev.user.id,

                             'title' : '"' + page.title + '"',
                             'title' : '"' + page.title + '"',

-                            'namespace' : page.namespace if page.namespace else self.__get_namespace_from_title(page.title),
-                            'deleted' : "TRUE" if rev.text.deleted else "FALSE" } 
+                            'namespace' : namespace,
+                            'deleted' : "TRUE" if rev.deleted.text else "FALSE" } 

 
                 # if revisions are deleted, /many/ things will be missing
 
                 # if revisions are deleted, /many/ things will be missing

-                if rev.text.deleted:
+                if rev.deleted.text:

                     rev_data['text_chars'] = ""
                     rev_data['sha1'] = ""
                     rev_data['revert'] = ""
                     rev_data['reverteds'] = ""
 
                 else:
                     rev_data['text_chars'] = ""
                     rev_data['sha1'] = ""
                     rev_data['revert'] = ""
                     rev_data['reverteds'] = ""
 
                 else:

+                    # rev.text can be None if the page has no text
+                    if not rev.text:
+                        rev.text = ""

                     # if text exists, we'll check for a sha1 and generate one otherwise
                     # if text exists, we'll check for a sha1 and generate one otherwise

+

                     if rev.sha1:
                         text_sha1 = rev.sha1
                     else:
                     if rev.sha1:
                         text_sha1 = rev.sha1
                     else:

+

                         text_sha1 = sha1(bytes(rev.text, "utf8")).hexdigest()
                     
                     rev_data['sha1'] = text_sha1
                         text_sha1 = sha1(bytes(rev.text, "utf8")).hexdigest()
                     
                     rev_data['sha1'] = text_sha1


@@ -181,6 +242,7 @@ class WikiqParser():
                
                     # generate revert data
                     revert = rev_detector.process(text_sha1, rev.id)
                
                     # generate revert data
                     revert = rev_detector.process(text_sha1, rev.id)

+                    

                     if revert:
                         rev_data['revert'] = "TRUE"
                         rev_data['reverteds'] = '"' + ",".join([str(x) for x in revert.reverteds]) + '"'
                     if revert:
                         rev_data['revert'] = "TRUE"
                         rev_data['reverteds'] = '"' + ",".join([str(x) for x in revert.reverteds]) + '"'


@@ -191,10 +253,10 @@ class WikiqParser():
                 # if the fact that the edit was minor can be hidden, this might be an issue
                 rev_data['minor'] = "TRUE" if rev.minor else "FALSE"
 
                 # if the fact that the edit was minor can be hidden, this might be an issue
                 rev_data['minor'] = "TRUE" if rev.minor else "FALSE"
 

-                if rev.contributor.user_text:
+                if not rev.deleted.user:

                     # wrap user-defined editors in quotes for fread
                     # wrap user-defined editors in quotes for fread

-                    rev_data['editor'] = '"' + rev.contributor.user_text + '"'
-                    rev_data['anon'] = "TRUE" if rev.contributor.id == None else "FALSE"
+                    rev_data['editor'] = '"' + rev.user.text + '"'
+                    rev_data['anon'] = "TRUE" if rev.user.id == None else "FALSE"

                     
                 else:
                     rev_data['anon'] = ""
                     
                 else:
                     rev_data['anon'] = ""


@@ -211,12 +273,18 @@ class WikiqParser():
                 if self.collapse_user:
                     rev_data['collapsed_revs'] = rev.collapsed_revs
 
                 if self.collapse_user:
                     rev_data['collapsed_revs'] = rev.collapsed_revs
 

-                if self.persist:
-                    if rev.text.deleted:
+                if self.persist != PersistMethod.none:
+                    if rev.deleted.text:

                         for k in ["token_revs", "tokens_added", "tokens_removed", "tokens_window"]:
                             old_rev_data[k] = None
                     else:
                         for k in ["token_revs", "tokens_added", "tokens_removed", "tokens_window"]:
                             old_rev_data[k] = None
                     else:

-                        _, tokens_added, tokens_removed = state.process(rev.text, rev.id, text_sha1)
+
+                        if self.persist != PersistMethod.legacy:
+                            _, tokens_added, tokens_removed = state.update(rev.text, rev.id)
+
+                        else:
+                            _, tokens_added, tokens_removed = state.process(rev.text, rev.id, text_sha1)
+                            

                         window.append((rev.id, rev_data, tokens_added, tokens_removed))
                         
                         if len(window) == PERSISTENCE_RADIUS:
                         window.append((rev.id, rev_data, tokens_added, tokens_removed))
                         
                         if len(window) == PERSISTENCE_RADIUS:


@@ -236,7 +304,7 @@ class WikiqParser():
 
                 rev_count += 1
 
 
                 rev_count += 1
 

-            if self.persist:
+            if self.persist != PersistMethod.none:

                 # print out metadata for the last RADIUS revisions
                 for i, item in enumerate(window):
                     # if the window was full, we've already printed item 0
                 # print out metadata for the last RADIUS revisions
                 for i, item in enumerate(window):
                     # if the window was full, we've already printed item 0


@@ -263,7 +331,7 @@ class WikiqParser():
         if self.urlencode:
             for field in TO_ENCODE:
                 rev_data[field] = quote(str(rev_data[field]))
         if self.urlencode:
             for field in TO_ENCODE:
                 rev_data[field] = quote(str(rev_data[field]))

-            
+

         if not self.printed_header:
             print("\t".join([str(k) for k in sorted(rev_data.keys())]), file=self.output_file)
             self.printed_header = True
         if not self.printed_header:
             print("\t".join([str(k) for k in sorted(rev_data.keys())]), file=self.output_file)
             self.printed_header = True


@@ -310,14 +378,35 @@ parser.add_argument('-s', '--stdout', dest="stdout", action="store_true",
 parser.add_argument('--collapse-user', dest="collapse_user", action="store_true",
                     help="Operate only on the final revision made by user a user within all sequences of consecutive edits made by a user. This can be useful for addressing issues with text persistence measures.")
 
 parser.add_argument('--collapse-user', dest="collapse_user", action="store_true",
                     help="Operate only on the final revision made by user a user within all sequences of consecutive edits made by a user. This can be useful for addressing issues with text persistence measures.")
 

-parser.add_argument('-p', '--persistence', dest="persist", action="store_true",
-                    help="Compute and report measures of content persistent: (1) persistent token revisions, (2) tokens added, and (3) number of revision used in computing the first measure.")
+parser.add_argument('-p', '--persistence', dest="persist", default="", const='', type=str, choices = ['','segment','sequence','legacy'], nargs='?',
+                    help="Compute and report measures of content persistent: (1) persistent token revisions, (2) tokens added, and (3) number of revision used in computing the first measure. This may by slow.  The defualt is -p=sequence, which uses the same algorithm as in the past, but with improvements to wikitext parsing. Use -p=legacy for old behavior used in older research projects. Use -p=segment for advanced persistence calculation method that is robust to content moves, but prone to bugs, and slower.")

 
 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('-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('-n', '--namespace-include', dest="namespace_filter", type=int, action='append',
+                    help="Id number of namspace to include. Can be specified more than once.")
+
+
+

 args = parser.parse_args()
 
 args = parser.parse_args()
 

+# set persistence method
+
+if args.persist is None:
+    persist = PersistMethod.none
+elif args.persist == "segment":
+    persist = PersistMethod.segment
+elif args.persist == "legacy":
+    persist = PersistMethod.legacy
+else:
+    persist = PersistMethod.sequence
+
+if args.namespace_filter is not None:
+    namespaces = args.namespace_filter
+else:
+    namespaces = None
+

 if len(args.dumpfiles) > 0:
     for filename in args.dumpfiles:
         input_file = open_input_file(filename)
 if len(args.dumpfiles) > 0:
     for filename in args.dumpfiles:
         input_file = open_input_file(filename)


@@ -338,9 +427,9 @@ if len(args.dumpfiles) > 0:
 
         wikiq = WikiqParser(input_file, output_file, 
                             collapse_user=args.collapse_user,
 
         wikiq = WikiqParser(input_file, output_file, 
                             collapse_user=args.collapse_user,

-                            persist=args.persist,
-                            urlencode=args.urlencode)
-
+                            persist=persist,
+                            urlencode=args.urlencode,
+                            namespaces = namespaces)

 
         wikiq.process()
 
 
         wikiq.process()
 


@@ -350,8 +439,10 @@ if len(args.dumpfiles) > 0:
 else:
     wikiq = WikiqParser(sys.stdin, sys.stdout,
                         collapse_user=args.collapse_user,
 else:
     wikiq = WikiqParser(sys.stdin, sys.stdout,
                         collapse_user=args.collapse_user,

-                        persist=args.persist,
-                        urlencode=args.urlencode)
+                        persist=persist,
+                        persist_legacy=args.persist_legacy,
+                        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"
     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"