def handle(self, *args, **options):
"""
Given a content library id, and an output_path folder. Export the
corresponding course from mongo and put it directly in the folder.
"""
module_store = modulestore()
try:
library_key = CourseKey.from_string(options['library_id'])
except InvalidKeyError:
raise CommandError(u'Invalid library ID: "{0}".'.format(
options['library_id']))
if not isinstance(library_key, LibraryLocator):
raise CommandError(u'Argument "{0}" is not a library key'.format(
options['library_id']))
library = module_store.get_library(library_key)
if library is None:
raise CommandError(u'Library "{0}" not found.'.format(
options['library_id']))
dest_path = options['output_path'] or '.'
if not os.path.isdir(dest_path):
raise CommandError(
u'Output path "{0}" not found.'.format(dest_path))
try:
# Generate archive using the handy tasks implementation
tarball = tasks.create_export_tarball(library, library_key, {},
None)
except Exception as e:
raise CommandError(u'Failed to export "{0}" with "{1}"'.format(
library_key, e))
else:
with tarball:
# Save generated archive with keyed filename
prefix, suffix, n = str(library_key).replace(':',
'+'), '.tar.gz', 0
while os.path.exists(prefix + suffix):
n += 1
prefix = u'{0}_{1}'.format(prefix.rsplit(
'_', 1)[0], n) if n > 1 else u'{}_1'.format(prefix)
filename = prefix + suffix
target = os.path.join(dest_path, filename)
tarball.file.seek(0)
with open(target, 'w') as f:
shutil.copyfileobj(tarball.file, f)
print(u'Library "{0}" exported to "{1}"'.format(
library.location.library_key, target))
def handle(self, *args, **options):
"""
Given a content library id, and an output_path folder. Export the
corresponding course from mongo and put it directly in the folder.
"""
module_store = modulestore()
try:
library_key = CourseKey.from_string(options['library_id'])
except InvalidKeyError:
raise CommandError(u'Invalid library ID: "{0}".'.format(options['library_id']))
if not isinstance(library_key, LibraryLocator):
raise CommandError(u'Argument "{0}" is not a library key'.format(options['library_id']))
library = module_store.get_library(library_key)
if library is None:
raise CommandError(u'Library "{0}" not found.'.format(options['library_id']))
dest_path = options['output_path'] or '.'
if not os.path.isdir(dest_path):
raise CommandError(u'Output path "{0}" not found.'.format(dest_path))
try:
# Generate archive using the handy tasks implementation
tarball = tasks.create_export_tarball(library, library_key, {}, None)
except Exception as e:
raise CommandError(u'Failed to export "{0}" with "{1}"'.format(library_key, e))
else:
with tarball:
# Save generated archive with keyed filename
prefix, suffix, n = str(library_key).replace(':', '+'), '.tar.gz', 0
while os.path.exists(prefix + suffix):
n += 1
prefix = u'{0}_{1}'.format(prefix.rsplit('_', 1)[0], n) if n > 1 else u'{}_1'.format(prefix)
filename = prefix + suffix
target = os.path.join(dest_path, filename)
tarball.file.seek(0)
with open(target, 'w') as f:
shutil.copyfileobj(tarball.file, f)
print(u'Library "{0}" exported to "{1}"'.format(library.location.library_key, target))