[0933c8]: scripts / backup_project.py Maximize Restore History

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backup_project.py    89 lines (80 with data), 3.0 kB

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import os
import sys
import struct
import logging
from pylons import c
from bson import BSON
from ming.orm import Mapper, state
from allura import model as M
log = logging.getLogger(__name__)
def main():
if len(sys.argv) not in (2,3):
log.error('Usage: %s <shortname> [<backup_dir>]', sys.argv[0])
return 1
pname = sys.argv[1]
project = M.Project.query.get(shortname=pname)
if project is None:
log.fatal('Project %s not found', pname)
print 'Project %s not found' % pname
return 2
if len(sys.argv) == 3:
backup_dir = sys.argv[2]
else:
pname = project.shortname
gid = project.tool_data.get('sfx', {}).get('group_id', project._id)
dirname = '%s-%s.purge' % (pname, gid)
backup_dir = os.path.join(
os.getcwd(), dirname)
log.info('Backing up %s to %s', pname, backup_dir)
dump_project(project, backup_dir)
return 0
def _write_bson(fp, doc):
bson = BSON.from_dict(doc)
fp.write(struct.pack('!l', len(bson)))
fp.write(bson)
def dump_project(project, dirname):
if not os.path.exists(dirname):
os.mkdir(dirname)
with open(os.path.join(dirname, 'project.bson'), 'w') as fp:
_write_bson(fp, state(project).document)
c.project = project
app_config_ids = [
ac._id for ac in M.AppConfig.query.find(dict(project_id=c.project._id)) ]
visited_collections = {}
for m in Mapper.all_mappers():
cls = m.mapped_class
cname = cls.__module__ + '.' + cls.__name__
sess = m.session
if sess is None:
log.info('Skipping %s which has no session', cls)
continue
dbname = sess.impl.db.name
fqname = cname + '/' + dbname
if fqname in visited_collections:
log.info('Skipping %s (already dumped collection %s in %s)',
cls, fqname, visited_collections[fqname])
continue
visited_collections[fqname] = cls
if 'project_id' in m.property_index:
# Dump the things directly related to the project
oq = dict(project_id=project._id)
elif 'app_config_id' in m.property_index:
# ... and the things related to its apps
oq = dict(app_config_id={'$in':app_config_ids})
else:
# Don't dump other things
continue
num_objs = cls.query.find(oq).count()
if num_objs == 0: continue
if not os.path.exists(os.path.join(dirname, dbname)):
os.mkdir(os.path.join(dirname, dbname))
fname = os.path.join(
dirname,
dbname,
'%s.bson' % (cls.__mongometa__.name))
log.info('%s: dumping %s objects to %s',
cname, num_objs, fname)
with open(os.path.join(dirname, fname), 'w') as fp:
for obj in cls.query.find(oq, validate=False).ming_cursor: _write_bson(fp, obj)
if __name__ == '__main__':
sys.exit(main())