def test_recursion(self):
path = join(mig_root, 'multidb')
results = list(get_file_list(path))
self.assertEquals(len(results), 4)
self.assertTrue(join(path, 'default', '0001.sql') in results)
self.assertTrue(join(path, 'default', '0002_foo.py') in results)
self.assertTrue(join(path, 'other', '0001.sql') in results)
self.assertTrue(join(path, 'other', '0002_bar.sql') in results)
def get_all_migrations(path, databases=None):
"""
Returns a dictionary of database => [migrations] representing all
migrations contained in ``path``.
"""
# database: [(number, full_path)]
possible_migrations = defaultdict(list)
try:
in_directory = sorted(get_file_list(path))
except OSError:
import traceback
print "An error occurred while reading migrations from %r:" % path
traceback.print_exc()
return {}
# Iterate through our results and discover which migrations are
# actually runnable
for full_path in in_directory:
child_path, script = os.path.split(full_path)
name, ext = os.path.splitext(script)
# the database component is default if this is in the root directory
# is <directory> if in a subdirectory
if path == child_path:
db = DEFAULT_DB_ALIAS
else:
db = os.path.split(child_path)[-1]
# filter by database if set
if databases and db not in databases:
continue
match = MIGRATION_NAME_RE.match(name)
if match is None:
raise MigrationError("Invalid migration file prefix %r "
"(must begin with a number)" % name)
number = int(match.group(1))
if ext in [".sql", ".py"]:
possible_migrations[db].append((number, full_path))
return possible_migrations
def get_file_list(path, max_depth=1, cur_depth=0):
"""
Recursively returns a list of all files up to ``max_depth``
in a directory.
"""
if os.path.exists(path):
for name in os.listdir(path):
if name.startswith('.'):
continue
full_path = os.path.join(path, name)
if os.path.isdir(full_path):
if cur_depth == max_depth:
continue
file_list = get_file_list(full_path, max_depth, cur_depth + 1)
for result in file_list:
yield result
else:
yield full_path
