Recovering a .sws file from the home directory on sagenb

[Thierry]

Hi,

i volonteered to help people with an account on the former sagenb.org to
get their data back. I usually send the users a copy of their home
directory. However, this is not very handy and it could be better to send
them a set of .sws files they could use directly. Is there a way to do
that, automatically or not. In heir home directory, there are some
directories withe the following structure:

./data
./data/some_file1.sage
./data/some_file2.sage
./snapshots
./snapshots/123456789.bz2
./snapshots/987654321.bz2
./cells
./worksheet.html
./worksheet_conf.pickle

I tried to just "tar cjf" each directory, but it does not work (on a
recent Sage install).

Note that sagenb.org is running sage 5.0. I can use it if needed (as well
as Sage 6.8 on my computer if the format did not change).

Ciao,
Thierry

[kcrisman]

i volonteered to help people with an account on the former sagenb.org to
get their data back. I usually send the users a copy of their home
directory. However, this is not very handy and it could be better to send
them a set of .sws files they could use directly. Is there a way to do
that, automatically or not. In heir home directory, there are some
directories withe the following structure:

./data
./data/some_file1.sage
./data/some_file2.sage
./snapshots
./snapshots/123456789.bz2
./snapshots/987654321.bz2
./cells
./worksheet.html
./worksheet_conf.pickle

I tried to just "tar cjf" each directory, but it does not work (on a
recent Sage install).

It's true that there may be an upgrade process from 5.0 to 6.x.  But in general I am pretty sure that a .sws is just the directory for the thing and zipped.  I don't think you have to separately zip any of the directories.  You can also check out the exact structure by just unzipping an existing .sws file - in fact, my computer volunteers to do this for me and I have to ask NOT to do it!

See https://github.com/sagemath/sagenb/blob/master/sagenb/flask_version/worksheet_listing.py

or

https://github.com/sagemath/sagenb/blob/master/sagenb/storage/filesystem_storage.py

import zipfile
	zip = zipfile.ZipFile(zip_filename, 'w', zipfile.ZIP_STORED)
	for worksheet in worksheets:
	sws_filename = tmp_filename() + '.sws'
	g.notebook.export_worksheet(worksheet.filename(), sws_filename)
	entry_name = worksheet.name()
	if entry_name in worksheet_names:
	i = 2
	while ("%s_%s" % (entry_name, i)) in worksheet_names:
	i += 1
	entry_name = "%s_%s" % (entry_name, i)
	zip.write(sws_filename, entry_name + ".sws")
	os.unlink(sws_filename)

 

def export_worksheet(self, username, id_number, filename, title):
	"""
	Export the worksheet with given username and id_number to the
	given filename (e.g., 'worksheet.sws').
	INPUT:
	- ``title`` - title to use for the exported worksheet (if
	None, just use current title)
	"""
	T = tarfile.open(filename, 'w:bz2')
	worksheet = self.load_worksheet(username, id_number)
	basic = copy.deepcopy(self._worksheet_to_basic(worksheet))
	if title:
	# change the title
	basic['name'] = title
	basic['name'] = encoded_str(basic['name'])
	# Remove metainformation that perhaps shouldn't be distributed
	for k in ['owner', 'ratings', 'worksheet_that_was_published', 'viewers', 'tags', 'published_id_number',
	'collaborators', 'auto_publish']:
	if basic.has_key(k):
	del basic[k]
	self._save(basic, self._worksheet_conf_filename(username, id_number) + '2')
	tmp = self._abspath(self._worksheet_conf_filename(username, id_number) + '2')
	T.add(tmp, os.path.join('sage_worksheet','worksheet_conf.pickle'))
	os.unlink(tmp)
	worksheet_html = self._abspath(self._worksheet_html_filename(username, id_number))
	T.add(worksheet_html, os.path.join('sage_worksheet','worksheet.html'))
	# The following is purely for backwards compatibility with old
	# notebook servers prior to sage-4.1.2.
	fd, worksheet_txt = tempfile.mkstemp()
	old_heading = "%s\nsystem:%s\n"%(basic['name'], basic['system'])
	with open(worksheet_txt,'w') as f:
	with open(worksheet_html) as g:
	f.write(old_heading + g.read())
	T.add(worksheet_txt,
	os.path.join('sage_worksheet','worksheet.txt'))
	os.unlink(worksheet_txt)
	# important, so we don't leave an open file handle!
	os.close(fd)
	# end backwards compat block.
	# Add the contents of the DATA directory
	path = self._abspath(self._worksheet_pathname(username, id_number))
	data = os.path.join(path, 'data')
	if os.path.exists(data):
	for X in os.listdir(data):
	T.add(os.path.join(data, X), os.path.join('sage_worksheet','data',X))
	# Add the contents of each of the cell directories.
	cells = os.path.join(path, 'cells')
	if os.path.exists(cells):
	for X in os.listdir(cells):
	T.add(os.path.join(cells, X), os.path.join('sage_worksheet','cells',X))
	# NOTE: We do not export the snapshot/undo data. People
	# frequently *complain* about Sage exporting a record of their
	# mistakes anyways.
	T.close()