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116 lines
3 KiB
Python
116 lines
3 KiB
Python
#!/usr/bin/env python
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"""
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Synopsis: %(prog)s [-h|-b|-r] dbfile [ picklefile ]
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Convert the bsddb database file given on the command like to a pickle
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representation. The optional flags indicate the type of the database (hash,
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btree, recno). The default is hash. If a pickle file is named it is opened
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for write access (deleting any existing data). If no pickle file is named,
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the pickle output is written to standard output.
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"""
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import getopt
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try:
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import bsddb
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except ImportError:
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bsddb = None
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try:
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import dbm
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except ImportError:
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dbm = None
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try:
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import anydbm
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except ImportError:
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anydbm = None
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import sys
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try:
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import cPickle as pickle
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except ImportError:
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import pickle
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prog = sys.argv[0]
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def usage():
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print >> sys.stderr, __doc__ % globals()
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def main(args):
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try:
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opts, args = getopt.getopt(args, "hbrda",
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["hash", "btree", "recno", "dbm", "anydbm"])
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except getopt.error:
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usage()
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return 1
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if len(args) == 0 or len(args) > 2:
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usage()
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return 1
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elif len(args) == 1:
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dbfile = args[0]
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pfile = sys.stdout
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else:
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dbfile = args[0]
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try:
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pfile = file(args[1], 'wb')
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except IOError:
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print >> sys.stderr, "Unable to open", args[1]
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return 1
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dbopen = None
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for opt, arg in opts:
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if opt in ("-h", "--hash"):
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try:
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dbopen = bsddb.hashopen
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except AttributeError:
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print >> sys.stderr, "bsddb module unavailable."
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return 1
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elif opt in ("-b", "--btree"):
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try:
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dbopen = bsddb.btopen
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except AttributeError:
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print >> sys.stderr, "bsddb module unavailable."
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return 1
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elif opt in ("-r", "--recno"):
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try:
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dbopen = bsddb.rnopen
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except AttributeError:
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print >> sys.stderr, "bsddb module unavailable."
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return 1
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elif opt in ("-a", "--anydbm"):
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try:
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dbopen = anydbm.open
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except AttributeError:
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print >> sys.stderr, "anydbm module unavailable."
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return 1
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elif opt in ("-d", "--dbm"):
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try:
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dbopen = dbm.open
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except AttributeError:
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print >> sys.stderr, "dbm module unavailable."
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return 1
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if dbopen is None:
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if bsddb is None:
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print >> sys.stderr, "bsddb module unavailable -"
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print >> sys.stderr, "must specify dbtype."
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return 1
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else:
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dbopen = bsddb.hashopen
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try:
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db = dbopen(dbfile, 'r')
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except bsddb.error:
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print >> sys.stderr, "Unable to open", dbfile,
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print >> sys.stderr, "Check for format or version mismatch."
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return 1
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for k in db.keys():
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pickle.dump((k, db[k]), pfile, 1==1)
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db.close()
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pfile.close()
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return 0
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if __name__ == "__main__":
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sys.exit(main(sys.argv[1:]))
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