574 lines
24 KiB
Python
Executable File
574 lines
24 KiB
Python
Executable File
#!/usr/bin/env python3
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# original wikiq headers are: title articleid revid date_time anon
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# editor editor_id minor text_size text_entropy text_md5 reversion
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# additions_size deletions_size
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import argparse
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import sys
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import os, os.path
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import re
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from subprocess import Popen, PIPE
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from collections import deque
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from hashlib import sha1
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from mwxml import Dump
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from deltas.tokenizers import wikitext_split
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import mwpersistence
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import mwreverts
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from urllib.parse import quote
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TO_ENCODE = ('title', 'editor')
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PERSISTENCE_RADIUS=7
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from deltas import SequenceMatcher
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from deltas import SegmentMatcher
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class PersistMethod:
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none = 0
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sequence = 1
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segment = 2
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legacy = 3
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def calculate_persistence(tokens_added):
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return(sum([(len(x.revisions)-1) for x in tokens_added]),
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len(tokens_added))
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class WikiqIterator():
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def __init__(self, fh, collapse_user=False):
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self.fh = fh
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self.collapse_user = collapse_user
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self.mwiterator = Dump.from_file(self.fh)
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self.namespace_map = { ns.id : ns.name for ns in
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self.mwiterator.site_info.namespaces }
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self.__pages = self.load_pages()
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def load_pages(self):
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for page in self.mwiterator:
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yield WikiqPage(page,
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namespace_map = self.namespace_map,
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collapse_user=self.collapse_user)
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def __iter__(self):
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return self.__pages
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def __next__(self):
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return next(self._pages)
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class WikiqPage():
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__slots__ = ('id', 'title', 'namespace', 'redirect',
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'restrictions', 'mwpage', '__revisions',
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'collapse_user')
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def __init__(self, page, namespace_map, collapse_user=False):
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self.id = page.id
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self.namespace = page.namespace
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# following mwxml, we assume namespace 0 in cases where
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# page.namespace is inconsistent with namespace_map
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if page.namespace not in namespace_map:
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self.title = page.title
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page.namespace = 0
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if page.namespace != 0:
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self.title = ':'.join([namespace_map[page.namespace], page.title])
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else:
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self.title = page.title
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self.restrictions = page.restrictions
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self.collapse_user = collapse_user
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self.mwpage = page
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self.__revisions = self.rev_list()
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def rev_list(self):
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# Outline for how we want to handle collapse_user=True
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# iteration rev.user prev_rev.user add prev_rev?
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# 0 A None Never
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# 1 A A False
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# 2 B A True
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# 3 A B True
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# 4 A A False
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# Post-loop A Always
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for i, rev in enumerate(self.mwpage):
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# never yield the first time
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if i == 0:
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if self.collapse_user:
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collapsed_revs = 1
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rev.collapsed_revs = collapsed_revs
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else:
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if self.collapse_user:
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# yield if this is the last edit in a seq by a user and reset
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# also yield if we do know who the user is
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if rev.deleted.user or prev_rev.deleted.user:
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yield prev_rev
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collapsed_revs = 1
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rev.collapsed_revs = collapsed_revs
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elif not rev.user.text == prev_rev.user.text:
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yield prev_rev
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collapsed_revs = 1
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rev.collapsed_revs = collapsed_revs
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# otherwise, add one to the counter
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else:
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collapsed_revs += 1
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rev.collapsed_revs = collapsed_revs
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# if collapse_user is false, we always yield
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else:
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yield prev_rev
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prev_rev = rev
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# also yield the final time
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yield prev_rev
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def __iter__(self):
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return self.__revisions
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def __next__(self):
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return next(self.__revisions)
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class RegexPair(object):
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def __init__(self, pattern, label):
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self.pattern = re.compile(pattern)
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self.label = label
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self.has_groups = bool(self.pattern.groupindex)
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if self.has_groups:
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self.capture_groups = list(self.pattern.groupindex.keys())
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def _make_key(self, cap_group):
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return ("{}_{}".format(self.label, cap_group))
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def matchmake(self, content, rev_data):
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temp_dict = {}
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# if there are named capture groups in the regex
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if self.has_groups:
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# if there are matches of some sort in this revision content, fill the lists for each cap_group
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if self.pattern.search(content) is not None:
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m = self.pattern.finditer(content)
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matchobjects = list(m)
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for cap_group in self.capture_groups:
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key = self._make_key(cap_group)
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temp_list = []
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for match in matchobjects:
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# we only want to add the match for the capture group if the match is not None
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if match.group(cap_group) != None:
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temp_list.append(match.group(cap_group))
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# if temp_list of matches is empty just make that column None
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if len(temp_list)==0:
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temp_dict[key] = None
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# else we put in the list we made in the for-loop above
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else:
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temp_dict[key] = ', '.join(temp_list)
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# there are no matches at all in this revision content, we default values to None
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else:
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for cap_group in self.capture_groups:
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key = self._make_key(cap_group)
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temp_dict[key] = None
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# there are no capture groups, we just search for all the matches of the regex
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else:
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#given that there are matches to be made
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if self.pattern.search(content) is not None:
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m = self.pattern.findall(content)
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temp_dict[self.label] = ', '.join(m)
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else:
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temp_dict[self.label] = None
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# update rev_data with our new columns
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rev_data.update(temp_dict)
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return rev_data
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class WikiqParser():
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def __init__(self, input_file, output_file, regex_match_revision, regex_match_comment, regex_revision_label, regex_comment_label, collapse_user=False, persist=None, urlencode=False, namespaces = None, revert_radius=15):
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"""
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Parameters:
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persist : what persistence method to use. Takes a PersistMethod value
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"""
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self.input_file = input_file
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self.output_file = output_file
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self.collapse_user = collapse_user
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self.persist = persist
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self.printed_header = False
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self.namespaces = []
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self.urlencode = urlencode
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self.revert_radius = revert_radius
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if namespaces is not None:
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self.namespace_filter = set(namespaces)
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else:
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self.namespace_filter = None
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self.regex_revision_pairs = self.make_matchmake_pairs(regex_match_revision, regex_revision_label)
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self.regex_comment_pairs = self.make_matchmake_pairs(regex_match_comment, regex_comment_label)
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def make_matchmake_pairs(self, patterns, labels):
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if (patterns is not None and labels is not None) and \
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(len(patterns) == len(labels)):
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return [RegexPair(pattern, label) for pattern, label in zip(patterns, labels)]
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elif (patterns is None and labels is None):
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return []
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else:
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sys.exit('Each regular expression *must* come with a corresponding label and vice versa.')
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def matchmake(self, rev, rev_data):
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rev_data = self.matchmake_revision(rev.text, rev_data)
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rev_data = self.matchmake_comment(rev.comment, rev_data)
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return rev_data
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def matchmake_revision(self, text, rev_data):
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return self.matchmake_pairs(text, rev_data, self.regex_revision_pairs)
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def matchmake_comment(self, comment, rev_data):
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return self.matchmake_pairs(comment, rev_data, self.regex_comment_pairs)
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def matchmake_pairs(self, text, rev_data, pairs):
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for pair in pairs:
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rev_data = pair.matchmake(text, rev_data)
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return rev_data
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def __get_namespace_from_title(self, title):
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default_ns = None
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for ns in self.namespaces:
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# skip if the namespace is not defined
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if ns == None:
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default_ns = self.namespaces[ns]
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continue
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if title.startswith(ns + ":"):
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return self.namespaces[ns]
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# if we've made it this far with no matches, we return the default namespace
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return default_ns
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def process(self):
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# create a regex that creates the output filename
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# output_filename = re.sub(r'^.*/(enwiki\-\d+)\-.*p(\d+)p.*$',
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# r'output/wikiq-\1-\2.tsv',
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# input_filename)
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# Construct dump file iterator
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dump = WikiqIterator(self.input_file, collapse_user=self.collapse_user)
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# extract list of namspaces
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self.namespaces = {ns.name : ns.id for ns in dump.mwiterator.site_info.namespaces}
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page_count = 0
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rev_count = 0
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# Iterate through pages
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for page in dump:
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namespace = page.namespace if page.namespace is not None else self.__get_namespace_from_title(page.title)
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# skip namespaces not in the filter
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if self.namespace_filter is not None:
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if namespace not in self.namespace_filter:
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continue
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rev_detector = mwreverts.Detector(radius = self.revert_radius)
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if self.persist != PersistMethod.none:
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window = deque(maxlen=PERSISTENCE_RADIUS)
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if self.persist == PersistMethod.sequence:
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state = mwpersistence.DiffState(SequenceMatcher(tokenizer = wikitext_split),
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revert_radius=PERSISTENCE_RADIUS)
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elif self.persist == PersistMethod.segment:
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state = mwpersistence.DiffState(SegmentMatcher(tokenizer = wikitext_split),
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revert_radius=PERSISTENCE_RADIUS)
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# self.persist == PersistMethod.legacy
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else:
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from mw.lib import persistence
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state = persistence.State()
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# Iterate through a page's revisions
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for rev in page:
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# initialize rev_data
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rev_data = {
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'revid':rev.id,
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'date_time' : rev.timestamp.strftime('%Y-%m-%d %H:%M:%S'),
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'articleid' : page.id,
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'editor_id' : "" if rev.deleted.user == True or rev.user.id is None else rev.user.id,
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'title' : '"' + page.title + '"',
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'namespace' : namespace,
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'deleted' : "TRUE" if rev.deleted.text else "FALSE"
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}
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rev_data = self.matchmake(rev, rev_data)
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# if revisions are deleted, /many/ things will be missing
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if rev.deleted.text:
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rev_data['text_chars'] = ""
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rev_data['sha1'] = ""
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rev_data['revert'] = ""
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rev_data['reverteds'] = ""
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else:
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# rev.text can be None if the page has no text
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if not rev.text:
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rev.text = ""
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# if text exists, we'll check for a sha1 and generate one otherwise
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if rev.sha1:
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text_sha1 = rev.sha1
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else:
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text_sha1 = sha1(bytes(rev.text, "utf8")).hexdigest()
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rev_data['sha1'] = text_sha1
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# TODO rev.bytes doesn't work.. looks like a bug
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rev_data['text_chars'] = len(rev.text)
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# generate revert data
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revert = rev_detector.process(text_sha1, rev.id)
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if revert:
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rev_data['revert'] = "TRUE"
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rev_data['reverteds'] = '"' + ",".join([str(x) for x in revert.reverteds]) + '"'
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else:
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rev_data['revert'] = "FALSE"
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rev_data['reverteds'] = ""
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# if the fact that the edit was minor can be hidden, this might be an issue
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rev_data['minor'] = "TRUE" if rev.minor else "FALSE"
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if not rev.deleted.user:
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# wrap user-defined editors in quotes for fread
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rev_data['editor'] = '"' + rev.user.text + '"'
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rev_data['anon'] = "TRUE" if rev.user.id == None else "FALSE"
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else:
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rev_data['anon'] = ""
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rev_data['editor'] = ""
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#if re.match(r'^#redirect \[\[.*\]\]', rev.text, re.I):
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# redirect = True
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#else:
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# redirect = False
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#TODO missing: additions_size deletions_size
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# if collapse user was on, lets run that
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if self.collapse_user:
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rev_data['collapsed_revs'] = rev.collapsed_revs
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if self.persist != PersistMethod.none:
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if rev.deleted.text:
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for k in ["token_revs", "tokens_added", "tokens_removed", "tokens_window"]:
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old_rev_data[k] = None
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else:
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if self.persist != PersistMethod.legacy:
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_, tokens_added, tokens_removed = state.update(rev.text, rev.id)
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else:
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_, tokens_added, tokens_removed = state.process(rev.text, rev.id, text_sha1)
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window.append((rev.id, rev_data, tokens_added, tokens_removed))
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if len(window) == PERSISTENCE_RADIUS:
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old_rev_id, old_rev_data, old_tokens_added, old_tokens_removed = window[0]
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num_token_revs, num_tokens = calculate_persistence(old_tokens_added)
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old_rev_data["token_revs"] = num_token_revs
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old_rev_data["tokens_added"] = num_tokens
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old_rev_data["tokens_removed"] = len(old_tokens_removed)
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old_rev_data["tokens_window"] = PERSISTENCE_RADIUS-1
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self.print_rev_data(old_rev_data)
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else:
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self.print_rev_data(rev_data)
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rev_count += 1
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if self.persist != PersistMethod.none:
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# print out metadata for the last RADIUS revisions
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for i, item in enumerate(window):
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# if the window was full, we've already printed item 0
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if len(window) == PERSISTENCE_RADIUS and i == 0:
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continue
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rev_id, rev_data, tokens_added, tokens_removed = item
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num_token_revs, num_tokens = calculate_persistence(tokens_added)
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rev_data["token_revs"] = num_token_revs
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rev_data["tokens_added"] = num_tokens
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rev_data["tokens_removed"] = len(tokens_removed)
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rev_data["tokens_window"] = len(window)-(i+1)
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self.print_rev_data(rev_data)
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page_count += 1
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print("Done: %s revisions and %s pages." % (rev_count, page_count),
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file=sys.stderr)
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def print_rev_data(self, rev_data):
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# if it's the first time through, print the header
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if self.urlencode:
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for field in TO_ENCODE:
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rev_data[field] = quote(str(rev_data[field]))
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if not self.printed_header:
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print("\t".join([str(k) for k in sorted(rev_data.keys())]), file=self.output_file)
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self.printed_header = True
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print("\t".join([str(v) for k, v in sorted(rev_data.items())]), file=self.output_file)
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def open_input_file(input_filename):
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if re.match(r'.*\.7z$', input_filename):
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cmd = ["7za", "x", "-so", input_filename, '*']
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elif re.match(r'.*\.gz$', input_filename):
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cmd = ["zcat", input_filename]
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elif re.match(r'.*\.bz2$', input_filename):
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cmd = ["bzcat", "-dk", input_filename]
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try:
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input_file = Popen(cmd, stdout=PIPE).stdout
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except NameError:
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input_file = open(input_filename, 'r')
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return input_file
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def open_output_file(input_filename):
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# create a regex that creates the output filename
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output_filename = re.sub(r'\.(7z|gz|bz2)?$', '', input_filename)
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output_filename = re.sub(r'\.xml', '', output_filename)
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output_filename = output_filename + ".tsv"
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output_file = open(output_filename, "w")
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return output_file
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parser = argparse.ArgumentParser(description='Parse MediaWiki XML database dumps into tab delimitted data.')
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# arguments for the input direction
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parser.add_argument('dumpfiles', metavar="DUMPFILE", nargs="*", type=str,
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help="Filename of the compressed or uncompressed XML database dump. If absent, we'll look for content on stdin and output on stdout.")
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parser.add_argument('-o', '--output-dir', metavar='DIR', dest='output_dir', type=str, nargs=1,
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help="Directory for output files.")
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parser.add_argument('-s', '--stdout', dest="stdout", action="store_true",
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help="Write output to standard out (do not create dump file)")
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parser.add_argument('--collapse-user', dest="collapse_user", action="store_true",
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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.")
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parser.add_argument('-p', '--persistence', dest="persist", default=None, const='', type=str, choices = ['','segment','sequence','legacy'], nargs='?',
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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.")
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parser.add_argument('-u', '--url-encode', dest="urlencode", action="store_true",
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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.")
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parser.add_argument('-n', '--namespace-include', dest="namespace_filter", type=int, action='append',
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help="Id number of namspace to include. Can be specified more than once.")
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parser.add_argument('-rr',
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'--revert-radius',
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dest="revert_radius",
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type=int,
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action='store',
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default=15,
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help="Number of edits to check when looking for reverts (default: 15)")
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parser.add_argument('-RP', '--revision-pattern', dest="regex_match_revision", default=None, type=str, action='append',
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help="The regular expression to search for in revision text. The regex must be surrounded by quotes.")
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|
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|
parser.add_argument('-RPl', '--revision-pattern-label', dest="regex_revision_label", default=None, type=str, action='append',
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|
help="The label for the outputted column based on matching the regex in revision text.")
|
|
|
|
parser.add_argument('-CP', '--comment-pattern', dest="regex_match_comment", default=None, type=str, action='append',
|
|
help="The regular expression to search for in comments of revisions.")
|
|
|
|
parser.add_argument('-CPl', '--comment-pattern-label', dest="regex_comment_label", default=None, type=str, action='append',
|
|
help="The label for the outputted column based on matching the regex in comments.")
|
|
|
|
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)
|
|
|
|
# open directory for output
|
|
if args.output_dir:
|
|
output_dir = args.output_dir[0]
|
|
else:
|
|
output_dir = "."
|
|
|
|
print("Processing file: %s" % filename, file=sys.stderr)
|
|
|
|
if args.stdout:
|
|
output_file = sys.stdout
|
|
else:
|
|
filename = os.path.join(output_dir, os.path.basename(filename))
|
|
output_file = open_output_file(filename)
|
|
|
|
wikiq = WikiqParser(input_file,
|
|
output_file,
|
|
collapse_user=args.collapse_user,
|
|
persist=persist,
|
|
urlencode=args.urlencode,
|
|
namespaces=namespaces,
|
|
revert_radius=args.revert_radius,
|
|
regex_match_revision = args.regex_match_revision,
|
|
regex_revision_label = args.regex_revision_label,
|
|
regex_match_comment = args.regex_match_comment,
|
|
regex_comment_label = args.regex_comment_label)
|
|
|
|
wikiq.process()
|
|
|
|
# close things
|
|
input_file.close()
|
|
output_file.close()
|
|
else:
|
|
wikiq = WikiqParser(sys.stdin,
|
|
sys.stdout,
|
|
collapse_user=args.collapse_user,
|
|
persist=persist,
|
|
#persist_legacy=args.persist_legacy,
|
|
urlencode=args.urlencode,
|
|
namespaces=namespaces,
|
|
revert_radius=args.revert_radius,
|
|
regex_match_revision = args.regex_match_revision,
|
|
regex_revision_label = args.regex_revision_label,
|
|
regex_match_comment = args.regex_match_comment,
|
|
regex_comment_label = args.regex_comment_label)
|
|
|
|
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"
|
|
# stop_words = stop_words.split(",")
|