X-Git-Url: https://code.communitydata.science/mediawiki_dump_tools.git/blobdiff_plain/17529cdd485b507517014b8ada5097531e97051e..d8d20f670b98507a3dea27c38e5463c1b0b2e6cd:/wikiq diff --git a/wikiq b/wikiq index 632b05c..c2a2f12 100755 --- a/wikiq +++ b/wikiq @@ -24,6 +24,13 @@ PERSISTENCE_RADIUS=7 from deltas import SequenceMatcher from deltas import SegmentMatcher +from dataclasses import dataclass +import pandas as pd +import pyarrow as pa +import pyarrow.parquet as pq + +from typing import List + class PersistMethod: none = 0 sequence = 1 @@ -34,6 +41,7 @@ def calculate_persistence(tokens_added): return(sum([(len(x.revisions)-1) for x in tokens_added]), len(tokens_added)) + class WikiqIterator(): def __init__(self, fh, collapse_user=False): self.fh = fh @@ -126,26 +134,155 @@ class WikiqPage(): def __next__(self): return next(self.__revisions) + +class RegexPair(object): + def __init__(self, pattern, label): + self.pattern = re.compile(pattern) + self.label = label + self.has_groups = bool(self.pattern.groupindex) + if self.has_groups: + self.capture_groups = list(self.pattern.groupindex.keys()) + + def _make_key(self, cap_group): + return ("{}_{}".format(self.label, cap_group)) + + def matchmake(self, content, rev_data): + + temp_dict = {} + # if there are named capture groups in the regex + if self.has_groups: + + # if there are matches of some sort in this revision content, fill the lists for each cap_group + if self.pattern.search(content) is not None: + m = self.pattern.finditer(content) + matchobjects = list(m) + + for cap_group in self.capture_groups: + key = self._make_key(cap_group) + temp_list = [] + for match in matchobjects: + # we only want to add the match for the capture group if the match is not None + if match.group(cap_group) != None: + temp_list.append(match.group(cap_group)) + + # if temp_list of matches is empty just make that column None + if len(temp_list)==0: + temp_dict[key] = None + # else we put in the list we made in the for-loop above + else: + temp_dict[key] = ', '.join(temp_list) + + # there are no matches at all in this revision content, we default values to None + else: + for cap_group in self.capture_groups: + key = self._make_key(cap_group) + temp_dict[key] = None + + # there are no capture groups, we just search for all the matches of the regex + else: + #given that there are matches to be made + if type(content) in(str, bytes): + if self.pattern.search(content) is not None: + m = self.pattern.findall(content) + temp_dict[self.label] = ', '.join(m) + else: + temp_dict[self.label] = None + + # update rev_data with our new columns + rev_data.update(temp_dict) + return rev_data + +@dataclass +class RevData(): + revid: int + date_time: datetime + articleid: int + editorid: int + title: str + namespace: int + deleted: bool + text_chars: int + revert: bool + reverteds: list[bool] + sha1: str + text_chars: int + revert: bool + reverteds: list[int] + minor: bool + editor: str + anon: bool + collapsed_revs:int + token_revs:int + tokens_added:int + tokens_removed:int + tokens_window:int + class WikiqParser(): - - def __init__(self, input_file, output_file, collapse_user=False, persist=None, urlencode=False, namespaces = None): + 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, output_parquet=True, parquet_buffer_size=2000): """ 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 self.persist = persist self.printed_header = False self.namespaces = [] self.urlencode = urlencode + self.revert_radius = revert_radius + + self.parquet_buffer = [] + self.parquet_buffer_size = parquet_buffer_size + if namespaces is not None: self.namespace_filter = set(namespaces) else: self.namespace_filter = None + self.regex_schemas = [] + self.regex_revision_pairs = self.make_matchmake_pairs(regex_match_revision, regex_revision_label) + self.regex_comment_pairs = self.make_matchmake_pairs(regex_match_comment, regex_comment_label) + + + if output_parquet is True: + self.output_parquet = True + self.pq_writer = None + self.output_file = output_file + else: + self.output_file = open(output_file,'w') + + + def make_matchmake_pairs(self, patterns, labels): + if (patterns is not None and labels is not None) and \ + (len(patterns) == len(labels)): + result = [] + for pattern, label in zip(patterns, labels): + result.append(RegexPair(pattern, label)) + self.regex_schemas.append(pa.field(label, pa.list_(pa.string()))) + + return result + elif (patterns is None and labels is None): + return [] + else: + sys.exit('Each regular expression *must* come with a corresponding label and vice versa.') + + def matchmake(self, rev, rev_data): + rev_data = self.matchmake_revision(rev.text, rev_data) + rev_data = self.matchmake_comment(rev.comment, rev_data) + return rev_data + + def matchmake_revision(self, text, rev_data): + return self.matchmake_pairs(text, rev_data, self.regex_revision_pairs) + + def matchmake_comment(self, comment, rev_data): + return self.matchmake_pairs(comment, rev_data, self.regex_comment_pairs) + + def matchmake_pairs(self, text, rev_data, pairs): + for pair in pairs: + rev_data = pair.matchmake(text, rev_data) + return rev_data + def __get_namespace_from_title(self, title): default_ns = None @@ -161,6 +298,7 @@ class WikiqParser(): # 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 @@ -187,7 +325,7 @@ class WikiqParser(): if namespace not in self.namespace_filter: continue - rev_detector = mwreverts.Detector() + rev_detector = mwreverts.Detector(radius = self.revert_radius) if self.persist != PersistMethod.none: window = deque(maxlen=PERSISTENCE_RADIUS) @@ -207,14 +345,19 @@ class WikiqParser(): # 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, - 'deleted' : "TRUE" if rev.deleted.text else "FALSE" } + + # initialize rev_data + rev_data = { + 'revid':rev.id, + 'date_time' : rev.timestamp.strftime('%Y-%m-%d %H:%M:%S'), + 'articleid' : page.id, + 'editorid' : "" if rev.deleted.user == True or rev.user.id is None else rev.user.id, + 'title' : '"' + page.title + '"', + 'namespace' : namespace, + 'deleted' : "TRUE" if rev.deleted.text else "FALSE" + } + + rev_data = self.matchmake(rev, rev_data) # if revisions are deleted, /many/ things will be missing if rev.deleted.text: @@ -239,7 +382,7 @@ class WikiqParser(): # TODO rev.bytes doesn't work.. looks like a bug rev_data['text_chars'] = len(rev.text) - + # generate revert data revert = rev_detector.process(text_sha1, rev.id) @@ -318,7 +461,6 @@ class WikiqParser(): rev_data["tokens_added"] = num_tokens rev_data["tokens_removed"] = len(tokens_removed) rev_data["tokens_window"] = len(window)-(i+1) - self.print_rev_data(rev_data) page_count += 1 @@ -326,22 +468,65 @@ class WikiqParser(): print("Done: %s revisions and %s pages." % (rev_count, page_count), file=sys.stderr) + if self.output_parquet is True: + self.flush_parquet_buffer() + self.pq_writer.close() + + else: + output_file.close() + + + def write_parquet_row(self, rev_data): + if 'deleted' in rev_data.keys(): + rev_data['deleted'] = True if rev_data['deleted'] == "TRUE" else False + + if 'minor' in rev_data.keys(): + rev_data['minor'] = True if rev_data['minor'] == "TRUE" else False + + + if 'anon' in rev_data.keys(): + rev_data['anon'] = True if rev_data['anon'] == "TRUE" else False + + + self.parquet_buffer.append(rev_data) + + if len(self.parquet_buffer) >= self.parquet_buffer_size: + self.flush_parquet_buffer() + + def flush_parquet_buffer(self): + outtable = pd.DataFrame.from_records(self.parquet_buffer) + outtable = pa.Table.from_pandas(outtable) + if self.pq_writer is None: + schema = outtable.schema + for regex_schema in self.regex_schemas: + schema.append(regex_schema) + + self.pq_writer = pq.ParquetWriter(self.output_file, schema, flavor='spark') + + self.pq_writer.write_table(outtable) + def print_rev_data(self, rev_data): + + if self.output_parquet is False: + printfunc = lambda rev_data: print("\t".join(rev_data), file=self.output_file) + else: + printfunc = self.write_parquet_row + # if it's the first time through, print the header 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) + printfunc(rev_data) self.printed_header = True - print("\t".join([str(v) for k, v in sorted(rev_data.items())]), file=self.output_file) + printfunc(rev_data) def open_input_file(input_filename): if re.match(r'.*\.7z$', input_filename): - cmd = ["7za", "x", "-so", input_filename, '*'] + cmd = ["7za", "x", "-so", input_filename, "*.xml"] elif re.match(r'.*\.gz$', input_filename): cmd = ["zcat", input_filename] elif re.match(r'.*\.bz2$', input_filename): @@ -354,13 +539,19 @@ def open_input_file(input_filename): return input_file -def open_output_file(input_filename): - # create a regex that creates the output filename +def get_output_filename(input_filename, parquet = False): output_filename = re.sub(r'\.(7z|gz|bz2)?$', '', input_filename) output_filename = re.sub(r'\.xml', '', output_filename) - output_filename = output_filename + ".tsv" - output_file = open(output_filename, "w") + if parquet is False: + output_filename = output_filename + ".tsv" + else: + output_filename = output_filename + ".parquet" + return output_filename +def open_output_file(input_filename): + # create a regex that creates the output filename + output_filename = get_output_filename(input_filename, parquet = False) + output_file = open(output_filename, "w") return output_file parser = argparse.ArgumentParser(description='Parse MediaWiki XML database dumps into tab delimitted data.') @@ -370,7 +561,7 @@ parser.add_argument('dumpfiles', metavar="DUMPFILE", nargs="*", type=str, help="Filename of the compressed or uncompressed XML database dump. If absent, we'll look for content on stdin and output on stdout.") parser.add_argument('-o', '--output-dir', metavar='DIR', dest='output_dir', type=str, nargs=1, - help="Directory for output files.") + help="Directory for output files. If it ends with .parquet output will be in parquet format.") parser.add_argument('-s', '--stdout', dest="stdout", action="store_true", help="Write output to standard out (do not create dump file)") @@ -387,10 +578,30 @@ parser.add_argument('-u', '--url-encode', dest="urlencode", action="store_true", 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.") +parser.add_argument('-rr', + '--revert-radius', + dest="revert_radius", + type=int, + action='store', + default=15, + help="Number of edits to check when looking for reverts (default: 15)") +parser.add_argument('-RP', '--revision-pattern', dest="regex_match_revision", default=None, type=str, action='append', + help="The regular expression to search for in revision text. The regex must be surrounded by quotes.") + +parser.add_argument('-RPl', '--revision-pattern-label', dest="regex_revision_label", default=None, type=str, action='append', + 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: @@ -408,6 +619,7 @@ else: namespaces = None if len(args.dumpfiles) > 0: + output_parquet = False for filename in args.dumpfiles: input_file = open_input_file(filename) @@ -417,33 +629,51 @@ if len(args.dumpfiles) > 0: else: output_dir = "." + if output_dir.endswith(".parquet"): + output_parquet = True + 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) + output_file = get_output_filename(filename, parquet = output_parquet) - wikiq = WikiqParser(input_file, output_file, + wikiq = WikiqParser(input_file, + output_file, collapse_user=args.collapse_user, persist=persist, urlencode=args.urlencode, - namespaces = namespaces) - + 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, + output_parquet=output_parquet) + + print(wikiq.output_parquet) wikiq.process() # close things input_file.close() - output_file.close() + else: - wikiq = WikiqParser(sys.stdin, sys.stdout, + wikiq = WikiqParser(sys.stdin, + sys.stdout, collapse_user=args.collapse_user, persist=persist, - persist_legacy=args.persist_legacy, + #persist_legacy=args.persist_legacy, urlencode=args.urlencode, - namespaces = namespaces) - wikiq.process() + 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(",")