mirror of
https://github.com/internetarchive/warcprox.git
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81 lines
2.5 KiB
Python
Executable File
81 lines
2.5 KiB
Python
Executable File
#!/usr/bin/env python
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'''
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dump-anydbm - dumps contents of dbm file to stdout
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Dump contents of database to stdout. Database can be any file that the anydbm
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module can read. Included with warcprox because it's useful for inspecting a
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deduplication database or a playback index database, but it is a generic tool.
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Copyright (C) 2013-2016 Internet Archive
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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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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 Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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USA.
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'''
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try:
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import dbm
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from dbm import ndbm
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whichdb = dbm.whichdb
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except:
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import anydbm
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dbm = anydbm
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from whichdb import whichdb
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import sys
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import os.path
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if __name__ == "__main__":
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main()
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def main():
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if len(sys.argv) != 2:
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sys.stderr.write("usage: {} DBM_FILE\n".format(sys.argv[0]))
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exit(1)
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filename = sys.argv[1]
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which = whichdb(filename)
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# if which returns none and the file does not exist, print usage line
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if which == None and not os.path.exists(sys.argv[1]):
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sys.stderr.write('No such file {}\n\n'.format(sys.argv[1]))
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sys.stderr.write("usage: {} DBM_FILE\n".format(sys.argv[0]))
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exit(1)
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# covers case where an ndbm is checked with its extension & identified incorrectly
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elif 'bsd' in which:
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correct_file = filename.split(".db")[0]
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correct_which = whichdb(correct_file)
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if correct_which in ('dbm', 'dbm.ndbm'):
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filename = correct_file
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which = correct_which
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elif which == '':
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sys.stderr.write("{} is an unrecognized database type\n".format(sys.argv[1]))
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sys.stderr.write("Try the file again by removing the extension\n")
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exit(1)
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try:
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out = sys.stdout.buffer
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except AttributeError:
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out = sys.stdout
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out.write(filename.encode('UTF-8') + b' is a ' + which.encode('UTF-8') + b' db\n')
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db = dbm.open(filename, 'r')
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for key in db.keys():
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out.write(key + b":" + db[key] + b"\n")
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