# original wikiq headers are: title articleid revid date_time anon
# editor editor_id minor text_size text_entropy text_md5 reversion
# additions_size deletions_size
-
import argparse
import sys
import os, os.path
from collections import deque
from hashlib import sha1
-from mwxml import Dump
+from mwxml import Dump, Page
from deltas.tokenizers import wikitext_split
+from mwdiffs.utilities import dump2diffs
import mwpersistence
+from mwpersistence.state import DiffState
+
+from mwpersistence import Token
+from mwpersistence.utilities import diffs2persistence
import mwreverts
from urllib.parse import quote
-TO_ENCODE = ('title', 'editor')
-PERSISTENCE_RADIUS=7
+
from deltas import SequenceMatcher
from deltas import SegmentMatcher
+TO_ENCODE = ('title', 'editor')
+PERSISTENCE_RADIUS=7
+
+ws_lex = ['break','whitespace']
+punct_lex = ['period','qmark','epoint','comma','colon','scolon','paren_open','paren_close','brack_open','brack_close','dbrack_close','dbrack_open','tab_close','tab_open','dcurly_close','dcurly_open','equals','bar','etc','bold','italic','tag','comment_end','comment_start']
class PersistMethod:
none = 0
segment = 2
legacy = 3
-def calculate_persistence(tokens_added):
- return(sum([(len(x.revisions)-1) for x in tokens_added]),
- len(tokens_added))
+def calculate_persistence(tokens_added, tokens_removed, exclude_ws = False, exclude_punct = False, legacy = False):
-class WikiqIterator():
- def __init__(self, fh, collapse_user=False):
- self.fh = fh
- self.collapse_user = collapse_user
- 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:
- yield WikiqPage(page,
- namespace_map = self.namespace_map,
- collapse_user=self.collapse_user)
+ if not legacy:
+ cond = lambda t: not (exclude_punct and (t.type in punct_lex)) \
+ and not(exclude_ws and (t.type in ws_lex))
- def __iter__(self):
- return self.__pages
+ tokens_added = [t for t in tokens_added if cond(t)]
+ tokens_removed = [t for t in tokens_removed if cond(t)]
- def __next__(self):
- return next(self._pages)
+ return(sum([(len(x.revisions)-1) for x in tokens_added]),
+ len(tokens_added),
+ len(tokens_removed)
+ )
+
+class WikiqIterator(Dump):
+
+ @classmethod
+ def from_file(cls, fh, collapse_user = False):
+ cls.fh = fh
+ cls.collapse_user = collapse_user
+ cls = super(WikiqIterator, cls).from_file(fh)
+ return cls
+
+ @classmethod
+ def process_item(cls, item_element, namespace_map):
+ if not hasattr(cls,'inv_namespace_map'):
+ cls.inv_namespace_map = {ns.id:name for name, ns in namespace_map.items()}
+
+ if item_element.tag == "page":
+ return WikiqPage.from_element(item_element, namespace_map, cls.inv_namespace_map, cls.collapse_user)
+ elif item_element.tag == "logitem":
+ return LogItem.from_element(item_element, namespace_map)
+ else:
+ raise MalformedXML("Expected to see <page> or <logitem>. " +
+ "Instead saw <{0}>".format(item_element.tag))
-class WikiqPage():
+class WikiqPage(Page):
__slots__ = ('id', 'title', 'namespace', 'redirect',
- 'restrictions', 'mwpage', '__revisions',
- 'collapse_user')
-
- def __init__(self, page, namespace_map, collapse_user=False):
- self.id = page.id
- self.namespace = page.namespace
+ 'restrictions','collapse_user')
+
+ @classmethod
+ def from_element(cls, item_element, namespace_map, inv_namespace_map, collapse_user = False):
+ cls.prev_rev = None
+
+ cls = super(WikiqPage, cls).from_element(item_element, namespace_map)
+
# 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])
+ # this undoes the "correction" of the namespace in mwxml
+
+ if cls.namespace not in inv_namespace_map:
+ cls.namespace = 0
+ if cls.namespace != 0:
+ cls.title = ':'.join([inv_namespace_map[cls.namespace], cls.title])
+
+ cls.collapse_user = collapse_user
+ cls.revisions = cls._Page__revisions
+ return cls
+
+ @staticmethod
+ def _correct_sha(rev_data):
+
+ if rev_data.deleted.text:
+ rev_data.text = ""
+ rev_data.text_chars = 0
+ rev_data.sha1 = ""
+ rev_data.revert = ""
+ rev_data.reverteds = ""
+
else:
- self.title = page.title
- self.restrictions = page.restrictions
- self.collapse_user = collapse_user
- self.mwpage = page
- self.__revisions = self.rev_list()
-
- def rev_list(self):
- # Outline for how we want to handle collapse_user=True
- # iteration rev.user prev_rev.user add prev_rev?
- # 0 A None Never
- # 1 A A False
- # 2 B A True
- # 3 A B True
- # 4 A A False
- # Post-loop A Always
- for i, rev in enumerate(self.mwpage):
- # never yield the first time
- if i == 0:
- if self.collapse_user:
- collapsed_revs = 1
- rev.collapsed_revs = collapsed_revs
+ if rev_data.text is None :
+ rev_data.text = ""
+
+ rev_data.text_chars = len(rev_data.text)
- else:
- if self.collapse_user:
- # yield if this is the last edit in a seq by a user and reset
- # 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
- # otherwise, add one to the counter
- else:
- collapsed_revs += 1
- rev.collapsed_revs = collapsed_revs
- # if collapse_user is false, we always yield
- else:
- yield prev_rev
+ if hasattr(rev_data,"sha1") and rev_data.sha1 is not None:
+ text_sha1 = rev_data.sha1
+
+ else:
+ text_sha1 = sha1(bytes(rev_data.text, "utf8")).hexdigest()
+ rev_data.sha1 = text_sha1
+
+ return rev_data
+
+ # Outline for how we want to handle collapse_user=True
+ # iteration rev.user prev_rev.user add prev_rev?
+ # 0 A None Never
+ # 1 A A False
+ # 2 B A True
+ # 3 A B True
+ # 4 A A False
+ # Post-loop A Always
+ def __find_next_revision(self):
+
+ if self.prev_rev is None:
+ prev_rev = WikiqPage._correct_sha(next(self.revisions))
+ self.prev_rev = prev_rev
+ else:
+ prev_rev = self.prev_rev
+
+ if self.collapse_user:
+ collapsed_revs = 1
+ self.prev_rev.collapsed_revs = collapsed_revs
+ prev_rev = self.prev_rev
+
+ for rev in self.revisions:
+ rev = WikiqPage._correct_sha(rev)
+ if self.collapse_user:
+ # yield if this is the last edit in a seq by a user and reset
+ # also yield if we do know who the user is
+
+ if rev.deleted.user or prev_rev.deleted.user:
+ self.prev_rev = rev
+ if prev_rev is not None:
+ prev_rev.collapsed_revs = collapsed_revs
+ return prev_rev
+
+ elif not rev.user.text == prev_rev.user.text:
+ self.prev_rev = rev
+ if prev_rev is not None:
+ prev_rev.collapsed_revs = collapsed_revs
+ return prev_rev
+
+ # otherwise, add one to the counter
+ else:
+ collapsed_revs += 1
+ rev.collapsed_revs = collapsed_revs
+ # if collapse_user is false, we always yield
+ else:
+ self.prev_rev = rev
+ if prev_rev is not None:
+ return prev_rev
prev_rev = rev
- # also yield the final time
- yield prev_rev
+ self.prev_rev = None
+
+ if self.collapse_user:
+ prev_rev.collapsed_revs = collapsed_revs
+ return prev_rev
- def __iter__(self):
- return self.__revisions
def __next__(self):
- return next(self.__revisions)
+ revision = self.__find_next_revision()
+ revision.page = self
+ return revision
+
+ def __iter__(self):
+ while(True):
+ revision = self.__find_next_revision()
+ revision.page = self
+ yield revision
class WikiqParser():
Parameters:
persist : what persistence method to use. Takes a PersistMethod value
"""
-
self.input_file = input_file
self.output_file = output_file
self.collapse_user = collapse_user
else:
self.namespace_filter = None
- def __get_namespace_from_title(self, title):
- default_ns = None
-
- for ns in self.namespaces:
- # skip if the namespace is not defined
- if ns == None:
- default_ns = self.namespaces[ns]
- continue
-
- if title.startswith(ns + ":"):
- return self.namespaces[ns]
-
- # if we've made it this far with no matches, we return the default namespace
- return default_ns
-
- def process(self):
-
# create a regex that creates the output filename
# output_filename = re.sub(r'^.*/(enwiki\-\d+)\-.*p(\d+)p.*$',
# r'output/wikiq-\1-\2.tsv',
# input_filename)
# Construct dump file iterator
- dump = WikiqIterator(self.input_file, collapse_user=self.collapse_user)
+ self.dump = WikiqIterator.from_file(self.input_file, self.collapse_user)
+
+ self.diff_engine = None
+
+ if self.persist == PersistMethod.sequence:
+ self.diff_engine = SequenceMatcher(tokenizer = wikitext_split)
+
+ if self.persist == PersistMethod.segment:
+ self.diff_engine = SegmentMatcher(tokenizer = wikitext_split)
+
+ # def __get_namespace_from_title(self, title):
+ # default_ns = None
+
+ # for ns in self.namespaces:
+ # # skip if the namespace is not defined
+ # if ns == None:
+ # default_ns = self.namespaces[ns]
+ # continue
+
+ # if title.startswith(ns + ":"):
+ # return self.namespaces[ns]
- # extract list of namspaces
- self.namespaces = {ns.name : ns.id for ns in dump.mwiterator.site_info.namespaces}
+ # # if we've made it this far with no matches, we return the default namespace
+ # return default_ns
+ # def _set_namespace(self, rev_docs):
+
+ # for rev_data in rev_docs:
+ # if 'namespace' not in rev_data['page']:
+ # namespace = self.__get_namespace_from_title(page['title'])
+ # rev_data['page']['namespace'] = namespace
+ # yield rev_data
+
+ def process(self):
page_count = 0
rev_count = 0
+ for page in self.dump:
- # 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 not in self.namespace_filter:
- continue
+ # skip pages not in the namespaces we want
+ if self.namespace_filter is not None and page.namespace not in self.namespace_filter:
+ continue
rev_detector = mwreverts.Detector()
window = deque(maxlen=PERSISTENCE_RADIUS)
if self.persist == PersistMethod.sequence:
- state = mwpersistence.DiffState(SequenceMatcher(tokenizer = wikitext_split),
+ state = DiffState(SequenceMatcher(tokenizer = wikitext_split),
revert_radius=PERSISTENCE_RADIUS)
elif self.persist == PersistMethod.segment:
- state = mwpersistence.DiffState(SegmentMatcher(tokenizer = wikitext_split),
+ state = 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,
'editor_id' : "" if rev.deleted.user == True or rev.user.id is None else rev.user.id,
'title' : '"' + page.title + '"',
- 'namespace' : namespace,
+ 'namespace' : page.namespace,
'deleted' : "TRUE" if rev.deleted.text else "FALSE" }
# if revisions are deleted, /many/ things will be missing
#TODO missing: additions_size deletions_size
# if collapse user was on, lets run that
- 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 != PersistMethod.none:
if rev.deleted.text:
for k in ["token_revs", "tokens_added", "tokens_removed", "tokens_window"]:
old_rev_data[k] = None
else:
-
+
if self.persist != PersistMethod.legacy:
_, tokens_added, tokens_removed = state.update(rev.text, rev.id)
if len(window) == PERSISTENCE_RADIUS:
old_rev_id, old_rev_data, old_tokens_added, old_tokens_removed = window[0]
- num_token_revs, num_tokens = calculate_persistence(old_tokens_added)
+ num_token_revs, num_tokens_added, num_tokens_removed = calculate_persistence(old_tokens_added, old_tokens_removed, legacy = self.persist == PersistMethod.legacy)
old_rev_data["token_revs"] = num_token_revs
- old_rev_data["tokens_added"] = num_tokens
- old_rev_data["tokens_removed"] = len(old_tokens_removed)
+ old_rev_data["tokens_added"] = num_tokens_added
+ old_rev_data["tokens_removed"] = num_tokens_removed
old_rev_data["tokens_window"] = PERSISTENCE_RADIUS-1
self.print_rev_data(old_rev_data)
continue
rev_id, rev_data, tokens_added, tokens_removed = item
- num_token_revs, num_tokens = calculate_persistence(tokens_added)
+
+ num_token_revs, num_tokens_added, num_tokens_removed = calculate_persistence(tokens_added, tokens_removed, legacy = self.persist == PersistMethod.legacy)
rev_data["token_revs"] = num_token_revs
- rev_data["tokens_added"] = num_tokens
- rev_data["tokens_removed"] = len(tokens_removed)
+ rev_data["tokens_added"] = num_tokens_added
+ rev_data["tokens_removed"] = num_tokens_removed
rev_data["tokens_window"] = len(window)-(i+1)
self.print_rev_data(rev_data)
projects / mediawiki_dump_tools.git / blobdiff