75 lines
2.3 KiB
Python
Executable File
75 lines
2.3 KiB
Python
Executable File
#!/usr/bin/python3
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# Copyright (C) 2020 J.F.Dockes
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#
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# License: GPL 2.1
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2.1 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the
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# Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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import sys
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import hashlib
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import base64
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import xapian
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import rclconfig
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# The following 2 methods replicate the file UDI computation in fileudi.cpp:
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# process a file path so that it is usable (short enough) for use as a Xapian
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# term. We truncate and replace the truncated part by its md5 hash.
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def pathHash(path, maxlen):
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HASHLEN = 22
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if len(path) <= maxlen:
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return path
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digest = hashlib.md5(path[maxlen-HASHLEN:]).digest()
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adigest = base64.b64encode(digest)
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adigest = adigest[:-2]
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return path[:maxlen-HASHLEN] + adigest
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def make_udi(path, ipath=b""):
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PATHHASHLEN = 150
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path += b"|"
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path += ipath
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return pathHash(path, PATHHASHLEN)
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# Return xapian posting list contents as Python list
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def get_postlist(xdb, term):
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ret = list()
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for posting in xdb.postlist(term):
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ret.append(posting.docid)
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return ret
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if __name__ == '__main__':
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if len(sys.argv) != 1:
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print("Usage: rclnotindexed", file=sys.stderr)
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print(" reads paths on stdin", file=sys.stderr)
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sys.exit(1)
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config = rclconfig.RclConfig()
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dbdir = config.getDbDir()
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xdb = xapian.Database(dbdir)
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for line in sys.stdin.buffer:
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path = line.rstrip(b"\n")
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udi = make_udi(path)
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term = b"Q" + udi
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postlist = get_postlist(xdb, term)
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if len(postlist) == 0:
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sys.stdout.buffer.write(path + b"\n")
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elif len(postlist) > 1:
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sys.stdout.buffer.write("!! Multiple document entries for: " +
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path + b"\n")
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sys.exit(1)
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