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#!/usr/bin/env python
"""
MoinMoin - migrate from several twikidraw files to one tarfile.
This script looks at all pages' attachments and checks whether they
contain TWikiDraw items. If this is the case, the TWikiDraw items are
bundled into a single tar file (.tdraw) on the disk.
(The intention is to later store this as a single Item in the new storage
layer.)
@copyright: 2008 by Christopher Denter
@license: GNU GPL, see COPYING for details.
"""
import os, errno
import tarfile
from MoinMoin.action.AttachFile import getAttachDir
def execute(script, data_dir, rev):
pagenames = script.request.rootpage.getPageList(user='', include_underlay=False)
for pagename in pagenames:
attachdir = getAttachDir(script.request, pagename)
try:
drawings = [fn for fn in os.listdir(attachdir) if fn.endswith('.draw')]
except OSError:
# silenced. attachment directory does not exist. proceed with next page
continue
for drawing in drawings:
basename = os.path.splitext(drawing)[0]
tar_filename = os.path.join(attachdir, basename + '.tdraw')
tar = tarfile.open(tar_filename, 'w:')
for ext in ['.draw', '.map', '.png', '.gif', ]:
filename = os.path.join(attachdir, basename + ext)
try:
if ext != '.gif':
# get rid of the gif (TWikiDraw will (re)create
# a .png when someone edits the drawing)
# we use drawing.* as tar member filenames EVER, so the
# member filenames do not need to be changed when the
# tar container file gets renamed:
tar.add(filename, 'drawing' + ext)
os.remove(filename)
except OSError, err:
if err.errno != errno.ENOENT:
# .map and .png are optional, .draw should be there
raise
tar.close()
return 1090000
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