diff options
Diffstat (limited to 'contrib/mergeWarc.py')
-rwxr-xr-x | contrib/mergeWarc.py | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/contrib/mergeWarc.py b/contrib/mergeWarc.py deleted file mode 100755 index 9442010..0000000 --- a/contrib/mergeWarc.py +++ /dev/null @@ -1,70 +0,0 @@ -#!/usr/bin/env python3 - -# Copyright (c) 2018 crocoite contributors -# -# Permission is hereby granted, free of charge, to any person obtaining a copy -# of this software and associated documentation files (the "Software"), to deal -# in the Software without restriction, including without limitation the rights -# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -# copies of the Software, and to permit persons to whom the Software is -# furnished to do so, subject to the following conditions: -# -# The above copyright notice and this permission notice shall be included in -# all copies or substantial portions of the Software. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -# THE SOFTWARE. - -""" -Merge multiple WARC files into a single file, writing revisit records for items -which occur multiple times -""" - -import shutil, sys, re, os, logging -from warcio.archiveiterator import ArchiveIterator -from warcio.warcwriter import WARCWriter - -if __name__ == '__main__': - import argparse - - parser = argparse.ArgumentParser(description='Merge WARCs, reads filenames from stdin.') - parser.add_argument('--verbose', '-v', action='store_true') - parser.add_argument('output', type=argparse.FileType ('wb'), help='Output WARC') - - args = parser.parse_args() - loglevel = logging.DEBUG if args.verbose else logging.INFO - logging.basicConfig (level=loglevel) - - unique = 0 - revisit = 0 - payloadMap = {} - writer = WARCWriter (args.output, gzip=True) - for l in sys.stdin: - l = l.strip () - with open (l, 'rb') as fd: - for record in ArchiveIterator (fd): - if record.rec_type in {'resource', 'response'}: - headers = record.rec_headers - rid = headers.get_header('WARC-Record-ID') - csum = headers.get_header('WARC-Payload-Digest') - dup = payloadMap.get (csum, None) - if dup is None: - payloadMap[csum] = {'uri': headers.get_header('WARC-Target-URI'), - 'id': rid, 'date': headers.get_header('WARC-Date')} - unique += 1 - else: - logging.debug ('Record {} is duplicate of {}'.format (rid, dup['id'])) - record = writer.create_revisit_record (dup['uri'], csum, dup['uri'], dup['date']) - record.rec_headers.add_header ('WARC-Truncated', 'length') - record.rec_headers.add_header ('WARC-Refers-To', dup['id']) - revisit += 1 - else: - unique += 1 - writer.write_record (record) - logging.info ('Wrote {} unique records, {} revisits'.format (unique, revisit)) - |