def deprecate(self):
"""Deprecates the database"""
if self.is_deprecated:
return
db_name = os.path.join(self.dir, 'database')
fp = open(db_name + '.index', 'r+b')
with lock_complete(fp):
## FIXME: anyone holding the database open will still be able to write to it
## Maybe copy and truncate the database?
## FIXME: also this could fail if deprecated also exists, which is kind
## of okay, but should be caught more formally
os.rename(db_name, os.path.join(self.dir, 'deprecated'))
os.rename(db_name + '.index', os.path.join(self.dir, 'deprecated.index'))
fp.close()
def save_blob(self, name, content_type, data):
"""Saves a blob"""
dir = os.path.join(self.dir, 'blobs')
ensure_dir(dir)
# I believe this is safe from concurrent access, because there
# can't be more than one writer. But I'm not sure. FIXME
content_type_name = os.path.join(dir, name + '.content-type')
blob_name = os.path.join(dir, name)
try:
fp = open(content_type_name, 'wb')
with lock_complete(fp):
fp.write(content_type)
blob_fp = open(blob_name, 'wb')
try:
blob_fp.write(data)
finally:
blob_fp.close()
finally:
fp.close()