"""
import os
import shutil
import sys
import warnings
import migrations
TO_VERSION = 7
try:
if migrations.check_definitions_version(TO_VERSION - 1):
if os.path.exists("DEFAULTS"):
warnings.warn("DEFAULTS file already exists in these definitions.")
valid = False
else:
shutil.copy("migrations/007-initial-defaults", "DEFAULTS")
valid = True
if valid:
migrations.set_definitions_version(TO_VERSION)
sys.stdout.write("Migration completed successfully.\n")
sys.exit(0)
else:
sys.stderr.write("Migration failed due to one or more warnings.\n")
sys.exit(1)
else:
for chunk_ref in contents.get('chunks', []):
if 'morph' in chunk_ref:
chunk_path = os.path.join('.', chunk_ref['morph'])
if not os.path.exists(chunk_path):
# There's no way we can really fix this, so
# just warn and say the migration failed.
warnings.warn(
"%s points to non-existant file %s" %
(contents['name'], chunk_ref['morph']))
valid = False
return valid
try:
if migrations.check_definitions_version(TO_VERSION - 1):
safe_to_migrate = migrations.process_definitions(
kinds=['stratum'], validate_cb=check_missing_chunk_morphs)
if not safe_to_migrate:
sys.stderr.write(
"Migration failed due to one or more warnings.\n")
sys.exit(1)
else:
migrations.set_definitions_version(TO_VERSION)
sys.stdout.write("Migration completed successfully.\n")
sys.exit(0)
else:
sys.stdout.write("Nothing to do.\n")
sys.exit(0)
except RuntimeError as e: