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Diffstat (limited to 'modules/versions.py')
| -rw-r--r-- | modules/versions.py | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/modules/versions.py b/modules/versions.py deleted file mode 100644 index 6b41725a2..000000000 --- a/modules/versions.py +++ /dev/null @@ -1,133 +0,0 @@ -# Copyright (C) 1998 by the Free Software Foundation, Inc. -# -# 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 which rectify an old maillist with current maillist structure. - -The maillist .CheckVersion() method looks for an old .data_version -setting in the loaded maillist structure, and if found calls the -Update() routine from this module, supplying the list and the state -last loaded from storage. (Th state is necessary to distinguish from -default assignments done in the .InitVars() methods, before -.CheckVersion() is called.) - -For new versions you should add sections to the UpdateOldVars() and the -UpdateOldUsers() sections, to preserve the sense of settings across -structural changes. Note that the routines have only one pass - when -.CheckVersions() finds a version change it runs this routine and then -updates the data_version number of the list, and then does a .Save(), so -the transformations won't be run again until another version change is -detected.""" - -__version__ = "$Revision: 721 $" - -import re, string, types -import mm_cfg - -def Update(l, stored_state): - "Dispose of old vars and user options, mapping to new ones when suitable." - # No worry about entirely new vars because InitVars() takes care of them. - UpdateOldVars(l, stored_state) - UpdateOldUsers(l) - -def UpdateOldVars(l, stored_state): - """Transform old variable values into new ones, deleting old ones. - stored_state is last snapshot from file, as opposed to from InitVars().""" - - def PreferStored(oldname, newname, l=l, state=stored_state): - "Use specified value if new value does not come from stored state." - if hasattr(l, oldname): - if not state.has_key(newname): - setattr(l, newname, getattr(l, oldname)) - delattr(l, oldname) - - # Pre 1.0b1.2, klm 04/11/1998. - # - migrated vars: - PreferStored('auto_subscribe', 'open_subscribe') - PreferStored('closed', 'private_roster') - PreferStored('mimimum_post_count_before_removal', - 'mimimum_post_count_before_bounce_action') - PreferStored('bad_posters', 'forbidden_posters') - PreferStored('automatically_remove', 'automatic_bounce_action') - # - dropped vars: - for a in ['archive_retain_text_copy', - 'archive_update_frequency', - 'archive_volume_frequency']: - if hasattr(l, a): delattr(l, a) - -def UpdateOldUsers(l): - """Transform sense of changed user options.""" - if older(l.data_version, "1.0b1.2"): - # Mime-digest bitfield changed from Enable to Disable after 1.0b1.1. - for m in l.members + l.digest_members: - was = l.GetUserOption(m, mm_cfg.DisableMime) - l.SetUserOption(m, mm_cfg.DisableMime, not was) - -def older(version, reference): - """True if version is older than current. - - Different numbering systems imply version is older.""" - if type(version) != type(reference): - return 1 - if version >= reference: - return 0 - else: - return 1 - # Iterate over the repective contiguous sections of letters and digits - # until a section from the reference is found to be different than the - # corresponding version section, and return the sense of the - # difference. If no differences are found, then 0 is returned. - #for v, r in map(None, section(version), section(reference)): - # if r == None: - # Reference is a full release and version is an interim - eg, - # alpha or beta - which precede full, are older: - # return 1 - # if type(v) != type(r): - # # Numbering system changed. - # return 1 - # if v < r: - # return 1 - # if v > r: - # return 0 - # return 0 - -#def section(s): -# """Split string into contiguous sequences of letters and digits.""" -# section = "" -# got = [] -# wasat = "" -# for c in s: -# if c in string.letters: -# at = string.letters; add = c -# elif c in string.digits: -# at = string.digits; add = c -# else: -# at = ""; add = "" -# -# if at == wasat: # In continuous sequence. -# section = section + add -# else: # Switching. -# if section: -# if wasat == string.digits: -# section = int(section) -# got.append(section) -# section = add -# wasat = at -# if section: # Get trailing stuff. -# if wasat == string.digits: -# section = int(section) -# got.append(section) -# return got |