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-rw-r--r--fastimport/idmapfile.py65
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diff --git a/fastimport/idmapfile.py b/fastimport/idmapfile.py
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-# Copyright (C) 2008 Canonical Ltd
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
-"""Routines for saving and loading the id-map file."""
-
-import os
-
-
-def save_id_map(filename, revision_ids):
- """Save the mapping of commit ids to revision ids to a file.
-
- Throws the usual exceptions if the file cannot be opened,
- written to or closed.
-
- :param filename: name of the file to save the data to
- :param revision_ids: a dictionary of commit ids to revision ids.
- """
- f = open(filename, 'wb')
- try:
- for commit_id, rev_id in revision_ids.iteritems():
- f.write("%s %s\n" % (commit_id, rev_id))
- f.flush()
- finally:
- f.close()
-
-
-def load_id_map(filename):
- """Load the mapping of commit ids to revision ids from a file.
-
- If the file does not exist, an empty result is returned.
- If the file does exists but cannot be opened, read or closed,
- the normal exceptions are thrown.
-
- NOTE: It is assumed that commit-ids do not have embedded spaces.
-
- :param filename: name of the file to save the data to
- :result: map, count where:
- map = a dictionary of commit ids to revision ids;
- count = the number of keys in map
- """
- result = {}
- count = 0
- if os.path.exists(filename):
- f = open(filename)
- try:
- for line in f:
- parts = line[:-1].split(' ', 1)
- result[parts[0]] = parts[1]
- count += 1
- finally:
- f.close()
- return result, count